WBK / Westpac Banking Corp - ADR - Документы SEC, Годовой отчет, Доверенное заявление

ASX RELEASE Westpac Banking Corporation Level 18, 275 Kent Street Sydney, NSW, 2000 2 September 2025 WESTPAC BUSINESS & WEALTH UPDATE Following is Westpac’s Business & Wealth Update. For further information: Hayden Cooper Justin McCarthy Group Head o

Exhibit 1 ASX RELEASE Westpac Banking Corporation Level 18, 275 Kent Street Sydney, NSW, 2000 2 September 2025 WESTPAC BUSINESS & WEALTH UPDATE Following is Westpac’s Business & Wealth Update.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 September 2, 2025 Commission File Number 1-10167 WESTPAC BANKI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 September 2, 2025 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

ASX ANNOUNCEMENT I WESTPAC 3Q25 UPDATE ASX ANNOUNCEMENT 3Q25 UPDATE 14 AUGUST 2025 HIGHLIGHTS $1.9bn Unaudited statutory net profit up 14% on 1H25 average $1.9bn Unaudited net profit ex Notable Items up 8% on 1H25 average 12.3% CET1 capital ratio abo

Exhibit 2 ASX RELEASE Westpac Banking Corporation Level 18, 275 Kent Street Sydney, NSW, 2000 14 August 2025 WESTPAC 3Q25 UPDATE Following is Westpac’s 3Q25 update for the three months ended 30 June 2025.

© Westpac Banking Corporation ABN 33 007 457 141 3Q25 INVESTOR DISCUSSION PACK FOR THE 3 MONTHS ENDED 30 JUNE 2025 This document should be read in conjunction with Westpac’s June 2025 Pillar 3 Report. All amounts are in Australian dollars. 3Q25 SUMMA

Exhibit 3 ASX RELEASE Westpac Banking Corporation Level 18, 275 Kent Street Sydney, NSW, 2000 14 August 2025 WESTPAC 3Q25 INVESTOR DISCUSSION PACK Following are Westpac’s 3Q25 slides covering financial performance, capital, credit quality and funding for the three months ended 30 June 2025.

EXHIBIT 1

Exhibit 1

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 August 14, 2025 Commission File Number 1-10167 WESTPAC BANKING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 August 14, 2025 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

12 August 2025

Exhibit 1 Westpac Banking Corporation Level 18, 275 Kent Street Sydney, NSW, 2000 12 August 2025 Appointment of Chief Executive, Consumer Westpac today announced the appointment of Carolyn McCann to the position of Chief Executive, Consumer, effective immediately.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 August 12, 2025 Commission File Number 1-10167 WESTPAC BANKING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 August 12, 2025 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

United States Securities and Exchange Commission Washington, D.C. 20549 Form F-N APPOINTMENT OF AGENT FOR SERVICE OF PROCESS BY FOREIGN BANKS AND FOREIGN INSURANCE COMPANIES AND CERTAIN OF THEIR HOLDING COMPANIES AND FINANCE SUBSIDIARIES MAKING PUBLI

United States Securities and Exchange Commission Washington, D.C. 20549 Form F-N APPOINTMENT OF AGENT FOR SERVICE OF PROCESS BY FOREIGN BANKS AND FOREIGN INSURANCE COMPANIES AND CERTAIN OF THEIR HOLDING COMPANIES AND FINANCE SUBSIDIARIES MAKING PUBLIC OFFERINGS OF SECURITIES IN THE UNITED STATES A. Name of issuer or person filing (“Filer”): Westpac Banking Corporation B. This is (select one): ¨ an

United States Securities and Exchange Commission Washington, D.C. 20549 Form F-N APPOINTMENT OF AGENT FOR SERVICE OF PROCESS BY FOREIGN BANKS AND FOREIGN INSURANCE COMPANIES AND CERTAIN OF THEIR HOLDING COMPANIES AND FINANCE SUBSIDIARIES MAKING PUBLI

United States Securities and Exchange Commission Washington, D.C. 20549 Form F-N APPOINTMENT OF AGENT FOR SERVICE OF PROCESS BY FOREIGN BANKS AND FOREIGN INSURANCE COMPANIES AND CERTAIN OF THEIR HOLDING COMPANIES AND FINANCE SUBSIDIARIES MAKING PUBLIC OFFERINGS OF SECURITIES IN THE UNITED STATES A. Name of issuer or person filing (“Filer”): Westpac Banking Corporation B. This is (select one): ¨ an

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 July 1, 2025 Commission File Number 1-10167 WESTPAC BANKING CO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 July 1, 2025 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

WESTPAC BANKING CORPORATION

Exhibit 1.1 Execution Version WESTPAC BANKING CORPORATION   US$750,000,000 4.354% Notes due July 1, 2030 US$750,000,000 Floating Rate Notes due July 1, 2030 Underwriting Agreement June 24, 2025 BofA Securities, Inc. One Bryant Park New York, New York 10036 United States of America Citigroup Global Markets Inc. 388 Greenwich Street New York, New York 10013 United States of America J.P. Morgan Secur

THIRTY-SIXTH SUPPLEMENTAL INDENTURE WESTPAC BANKING CORPORATION THE BANK OF NEW YORK MELLON as Trustee Dated as of July 1, 2025

  Exhibit 4.1   Execution Version   THIRTY-SIXTH SUPPLEMENTAL INDENTURE   between   WESTPAC BANKING CORPORATION   and   THE BANK OF NEW YORK MELLON   as Trustee   Dated as of July 1, 2025         THIRTY-SIXTH SUPPLEMENTAL INDENTURE   THIRTY-SIXTH SUPPLEMENTAL INDENTURE, dated as of July 1, 2025 (the “Thirty-Sixth Supplemental Indenture”), between WESTPAC BANKING CORPORATION (ABN 33 007 457 141), a

US$1,500,000,000 Westpac Banking Corporation (ABN 33 007 457 141) US$750,000,000 4.354% Notes due July 1, 2030 US$750,000,000 Floating Rate Notes due July 1, 2030

TABLE OF CONTENTS  Filed Pursuant to Rule 424(b)(5)  Registration Statement No. 333-283007 PROSPECTUS SUPPLEMENT (TO PROSPECTUS DATED November 5, 2024) US$1,500,000,000 Westpac Banking Corporation (ABN 33 007 457 141) US$750,000,000 4.354% Notes due July 1, 2030 US$750,000,000 Floating Rate Notes due July 1, 2030 We are offering US$750,000,000 aggregate principal amount of our 4.354% notes due Jul

Table 1: Newly Registered and Carry Forward Securities

Calculation of Filing Fee Tables F-3 WESTPAC BANKING CORP Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to be Paid 1 Debt Fixed Rate Senior Debt Securities 457(r) $ 1.

US$750,000,000 4.354% Notes due July 1, 2030 US$750,000,000 Floating Rate Notes due July 1, 2030

Filed Pursuant to Rule 433 Registration Statement No. 333-283007 Free Writing Prospectus (To the Preliminary Prospectus Supplement dated June 24, 2025 and Prospectus dated November 5, 2024) June 24, 2025 US$750,000,000 4.354% Notes due July 1, 2030 US$750,000,000 Floating Rate Notes due July 1, 2030 US$750,000,000 4.354% Notes due July 1, 2030 Issuer: Westpac Banking Corporation Principal Amount:

Subject to Completion Preliminary Prospectus Supplement dated June 24, 2025

TABLE OF CONTENTS The information in this preliminary prospectus supplement is not complete and may be changed.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 June 10, 2025 Commission File Number 1-10167 WESTPAC BANKING C

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 June 10, 2025 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Sydney, NSW, 2000

Exhibit 1 ASX Release Level 18, 275 Kent Street Sydney, NSW, 2000 10 June 2025 Appointment of Philippa Greenwood to the Westpac Board Westpac Banking Corporation (Westpac) has today announced the appointment of Philippa (Pip) Greenwood as an independent Non-executive Director, subject to regulatory approvals.

ASIC PROCEEDINGS AGAINST RAMS FINANCIAL GROUP

Exhibit 1 ASX Release Level 18, 275 Kent Street Sydney, NSW, 2000 4 June 2025 ASIC PROCEEDINGS AGAINST RAMS FINANCIAL GROUP Westpac has announced today that its subsidiary, RAMS Financial Group Pty Limited (RFG), has reached agreement with ASIC to resolve ASIC’s investigation into the RAMS business through agreed civil penalty proceedings filed in the Federal Court.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 June 4, 2025 Commission File Number 1-10167 WESTPAC BANKING CO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 June 4, 2025 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Level 18, 275 Kent Street

Exhibit 1 ASX Level 18, 275 Kent Street Sydney, NSW, 2000 Release 26 May 2025 Westpac appoints Chief Data, Digital and AI Officer Westpac has announced the appointment of Dr Andrew McMullan as Chief Data, Digital and AI Officer, reporting to CEO Anthony Miller.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 27, 2025 Commission File Number 1-10167 WESTPAC BANKING CO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 27, 2025 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 6, 2025 Commission File Number 1-10167 WESTPAC BANKING COR

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 6, 2025 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Return on equity 9.8% ex Notable Items

Exhibit 1 INTERIM FINANCIAL RESULTS FOR THE SIX MONTHS ENDED 31 MARCH 2025 Incorporating the requirements of Appendix 4D Westpac Banking Corporation ABN 33 007 457 141 WESTPAC GROUP 2025 INTERIM FINANCIAL RESULTS Acknowledgement of Indigenous Peoples Westpac acknowledges the First Peoples of Australia.

ASX Release 5 May 2025 Westpac 2025 Interim Financial Results Announcement (incorporating the requirements of Appendix 4D) Westpac Banking Corporation (“Westpac”) today provides the attached Westpac 2025 Interim Financial Results Announcement (incorp

Exhibit 1 ASX Release 5 May 2025 Westpac 2025 Interim Financial Results Announcement (incorporating the requirements of Appendix 4D) Westpac Banking Corporation (“Westpac”) today provides the attached Westpac 2025 Interim Financial Results Announcement (incorporating the requirements of Appendix 4D).

ASX Release 5 May 2025 Westpac 1H25 Presentation and Investor Discussion Pack Westpac Banking Corporation (Westpac”) today provides the attached Westpac 1H25 Presentation and Investor Discussion Pack. For further information: Hayden Cooper Justin McC

Exhibit 1 ASX Release 5 May 2025 Westpac 1H25 Presentation and Investor Discussion Pack Westpac Banking Corporation (Westpac”) today provides the attached Westpac 1H25 Presentation and Investor Discussion Pack.

ASX Release 5 May 2025 Pillar 3 Report as at 31 March 2025 Westpac Banking Corporation (“Westpac”) today provides the attached Pillar 3 Report (March 2025). For further information: Hayden Cooper Justin McCarthy Group Head of Media Relations General

Exhibit 1 ASX Release 5 May 2025 Pillar 3 Report as at 31 March 2025 Westpac Banking Corporation (“Westpac”) today provides the attached Pillar 3 Report (March 2025).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 5, 2025 Commission File Number 1-10167 WESTPAC BANKING COR

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 5, 2025 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 5, 2025 Commission File Number 1-10167 WESTPAC BANKING COR

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 5, 2025 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 5, 2025 Commission File Number 1-10167 WESTPAC BANKING COR

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 5, 2025 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Appendix 3A.1 - Notification of dividend / distribution Appendix 3A.1 - Notification of dividend / distribution 1 / 6 Announcement Summary Entity name WESTPAC BANKING CORPORATION Security on which the Distribution will be paid WBC - ORDINARY FULLY PA

Exhibit 2 Appendix 3A.1 - Notification of dividend / distribution Appendix 3A.1 - Notification of dividend / distribution 1 / 6 Announcement Summary Entity name WESTPAC BANKING CORPORATION Security on which the Distribution will be paid WBC - ORDINARY FULLY PAID Announcement Type New announcement Date of this announcement 5/5/2025 Distribution Amount AUD 0.76000000 Ex Date 8/5/2025 Record Date 9/5

Sydney, NSW, 2000

Exhibit 1 ASX Release Level 18, 275 Kent Street Sydney, NSW, 2000 30 April 2025 WESTPAC’S HALF YEAR 2025 (1H25) NOTABLE ITEMS AND REPORTING CHANGES 1H25 Notable Items Westpac’s reported net profit after tax in 1H25 will be reduced by $140 million due to Notable Items that relate solely to hedging items, which reverse over time.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 April 30, 2025 Commission File Number 1-10167 WESTPAC BANKING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 April 30, 2025 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Sydney, NSW, 2000

Exhibit 1 ASX Release Level 18, 275 Kent Street Sydney, NSW, 2000 29 April 2025 Westpac appoints Acting Chief Executive, Consumer Westpac has announced the appointment of Carolyn McCann as Acting Chief Executive, Consumer, effective 12 May 2025.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 April 29, 2025 Commission File Number 1-10167 WESTPAC BANKING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 April 29, 2025 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Level 18, 275 Kent Street

Exhibit 1 ASX Release Level 18, 275 Kent Street Sydney, NSW, 2000 2 April 2025 Westpac appoints new Chief People Officer Westpac has announced the appointment of Kate Dee to the position of Chief People Officer, reporting directly to CEO Anthony Miller.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 April 2, 2025 Commission File Number 1-10167 WESTPAC BANKING C

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 April 2, 2025 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

ASX Release 28 March 2025 Westpac market update Westpac Banking Corporation (“Westpac”) today provides the attached update. For further information: Hayden Cooper Justin McCarthy Group Head of Media Relations General Manager, Investor Relations 0402

Exhibit 99.1 ASX Release 28 March 2025 Westpac market update Westpac Banking Corporation (“Westpac”) today provides the attached update. For further information: Hayden Cooper Justin McCarthy Group Head of Media Relations General Manager, Investor Relations 0402 393 619 0422 800 321 This document has been authorised for release by Tim Hartin, Company Secretary. Level 18, 275 Kent Street Sydney, NS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 March 28, 2025 Commission File Number 1-10167 WESTPAC BANKING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 March 28, 2025 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 March 17, 2025 Commission File Number 1-10167 WESTPAC BANKING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 March 17, 2025 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Level 18, 275 Kent Street

Exhibit 1 ASX Release Level 18, 275 Kent Street Sydney, NSW, 2000 17 March 2025 Westpac appoints new Chief Financial Officer Westpac has announced the appointment of Nathan Goonan as Chief Financial Officer, subject to regulatory approval.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 March 14, 2025 Commission File Number 1-10167 WESTPAC BANKING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 March 14, 2025 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

WESTPAC SETTLES AUTO FINANCE CLASS ACTION

Exhibit 1 ASX Release Level 18, 275 Kent Street Sydney, NSW, 2000 14 March 2025 WESTPAC SETTLES AUTO FINANCE CLASS ACTION The Westpac Group has agreed to settle the class action relating to flex commissions paid to auto dealers from 1 March 2013 to 31 October 2018, without any admission of liability.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 March 7, 2025 Commission File Number 1-10167 WESTPAC BANKING C

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 March 7, 2025 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

7 March 2025

Exhibit 1 ASX Release Level 18, 275 Kent Street Sydney, NSW, 2000 7 March 2025 Westpac Executive Change Westpac has announced Chief Executive, Consumer, Jason Yetton, has decided to leave the bank and a recruitment process is underway for a successor.

Level 18, 275 Kent Street

Exhibit 1 ASX Level 18, 275 Kent Street Sydney, NSW, 2000 Release 21 February 2025 Appointment of Chief Transformation Officer Westpac has announced the appointment of Peter Herbert as Chief Transformation Officer, effective Monday 3 March 2025.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 February 21, 2025 Commission File Number 1-10167 WESTPAC BANKI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 February 21, 2025 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

ASX Release 17 February 2025 Pillar 3 Report as at 31 December 2024 Westpac Banking Corporation (“Westpac”) today provides the attached Pillar 3 Report (December 2024). For further information: Hayden Cooper Justin McCarthy Group Head of Media Relati

Exhibit 1 ASX Release 17 February 2025 Pillar 3 Report as at 31 December 2024 Westpac Banking Corporation (“Westpac”) today provides the attached Pillar 3 Report (December 2024).

ASX Release 17 February 2025 WESTPAC 1Q25 INVESTOR DISCUSSION PACK For further information: Hayden Cooper Justin McCarthy Group Head of Media Relations General Manager, Investor Relations 0402 393 619 0422 800 321 This document has been authorised fo

Exhibit 3 ASX Release 17 February 2025 WESTPAC 1Q25 INVESTOR DISCUSSION PACK For further information: Hayden Cooper Justin McCarthy Group Head of Media Relations General Manager, Investor Relations 0402 393 619 0422 800 321 This document has been authorised for release by Tim Hartin, Company Secretary.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 February 18, 2025 Commission File Number 1-10167 WESTPAC BANKI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 February 18, 2025 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

ASX Release 17 February 2025 WESTPAC 1Q25 UPDATE Following is Westpac’s 1Q25 update for the three months ended 31 December 2024. For further information: Hayden Cooper Justin McCarthy Group Head of Media Relations General Manager, Investor Relations

Exhibit 2 ASX Release 17 February 2025 WESTPAC 1Q25 UPDATE Following is Westpac’s 1Q25 update for the three months ended 31 December 2024.

For further information: Hayden Cooper Justin McCarthy Group Head of Media Relations General Manager, Investor Relations 0402 393 619 0422 800 321 This document has been authorised for release by Tim Hartin, Company Secretary.

Exhibit 1 ASX Release 10 February 2025 Appointment of Non-executive Directors to the Westpac Board Westpac Banking Corporation (Westpac) has today announced the appointment of Debra Hazelton and David Cohen as independent Non-executive Directors, subject to regulatory approval.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 February 10, 2025 Commission File Number 1-10167 WESTPAC BANKI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 February 10, 2025 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 February 4, 2025 Commission File Number 1-10167 WESTPAC BANKIN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 February 4, 2025 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

For further information: Hayden Cooper Justin McCarthy Group Head of Media Relations General Manager, Investor Relations 0402 393 619 0422 800 321 This document has been authorised for release by Tim Hartin, Company Secretary. Biography – Paul Fowler

Exhibit 1 ASX Release 4 February 2025 Chief Executive, Business & Wealth Westpac has appointed Paul Fowler to the position of Chief Executive, Business & Wealth.

ASX Release 17 December 2024 Retirement of Chief Financial Officer Westpac CEO Anthony Miller today announced that Michael Rowland has notified of his intention to retire as Chief Financial Officer in 2025. Michael has been with Westpac since 2020. “

Exhibit 1 ASX Release 17 December 2024 Retirement of Chief Financial Officer Westpac CEO Anthony Miller today announced that Michael Rowland has notified of his intention to retire as Chief Financial Officer in 2025.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 December 17, 2024 Commission File Number 1-10167 WESTPAC BANKI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 December 17, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

ANNUAL GENERAL MEETING Friday, 13 December, 2024 WESTPAC BANKING CORPORATION Short Description For Against For Against Abstain ** As required by section 251AA(2) of the Corporations Act 2001 (Commonwealth) the following statistics are provided in res

Exhibit 1 ASX Release 13 December 2024 Results of 2024 Annual General Meeting and Change of Auditor In accordance with ASX Listing Rule 3.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 December 16, 2024 Commission File Number 1-10167 WESTPAC BANKI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 December 16, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

4 DECEMBER 2024 Westpac Banking Corporation ABN 33 007 457 141 MARKET UPDATE SUSTAINABILITY SUSTAINABILITY MARKET UPDATE - AGENDA 2 Westpac December 2024 Sustainability Update SUSTAINABILITY 1 STRATEGY PROGRESS MICHAEL CHEN Acting Chief Sustainabilit

Exhibit 1 ASX Release 04 December 2024 Westpac Sustainability Update Westpac Banking Corporation (“Westpac”) today provides the attached Westpac Sustainability update.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 December 4, 2024 Commission File Number 1-10167 WESTPAC BANKIN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 December 4, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

THIRTY-FIFTH SUPPLEMENTAL INDENTURE WESTPAC BANKING CORPORATION THE BANK OF NEW YORK MELLON as Trustee Dated as of November 20, 2024 THIRTY-FIFTH SUPPLEMENTAL INDENTURE

Exhibit 4.1 Execution Version THIRTY-FIFTH SUPPLEMENTAL INDENTURE between WESTPAC BANKING CORPORATION and THE BANK OF NEW YORK MELLON as Trustee Dated as of November 20, 2024 THIRTY-FIFTH SUPPLEMENTAL INDENTURE THIRTY-FIFTH SUPPLEMENTAL INDENTURE, dated as of November 20, 2024 (the “Thirty-Fifth Supplemental Indenture”), between WESTPAC BANKING CORPORATION (ABN 33 007 457 141), a company incorpora

WESTPAC BANKING CORPORATION

  Exhibit 1.1   Execution Version WESTPAC BANKING CORPORATION   US$750,000,000 4.600% Notes due October 20, 2026   US$750,000,000 Floating Rate Notes due October 20, 2026   Underwriting Agreement   November 12, 2024   BofA Securities, Inc. One Bryant Park New York, New York 10036 United States of America   Citigroup Global Markets Inc. 388 Greenwich Street New York, New York 10013 United States of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 20, 2024 Commission File Number 1- 10167 WESTPAC BANK

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 20, 2024 Commission File Number 1- 10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 20, 2024 Commission File Number 1-10167 WESTPAC BANKI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 20, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

FIRST SUPPLEMENTAL INDENTURE WESTPAC BANKING CORPORATION THE BANK OF NEW YORK MELLON as Trustee Dated as of November 20, 2024 FIRST SUPPLEMENTAL INDENTURE

Exhibit 4.1 Execution Version FIRST SUPPLEMENTAL INDENTURE between WESTPAC BANKING CORPORATION and THE BANK OF NEW YORK MELLON as Trustee Dated as of November 20, 2024 FIRST SUPPLEMENTAL INDENTURE FIRST SUPPLEMENTAL INDENTURE, dated as of November 20, 2024 (the “First Supplemental Indenture”), between WESTPAC BANKING CORPORATION (ABN 33 007 457 141), a company incorporated in the Commonwealth of A

WESTPAC BANKING CORPORATION US$1,500,000,000 5.618% Subordinated Notes due 2035 Underwriting Agreement

Exhibit 1.1 Execution Version WESTPAC BANKING CORPORATION US$1,500,000,000 5.618% Subordinated Notes due 2035 Underwriting Agreement November 12, 2024 BofA Securities, Inc. One Bryant Park New York, New York 10036 United States of America Citigroup Global Markets Inc. 388 Greenwich Street New York, New York 10013 United States of America HSBC Securities (USA) Inc. 66 Hudson Boulevard New York, New

Table 1: Newly Registered and Carry Forward Securities

Calculation of Filing Fee Tables F-3 WESTPAC BANKING CORP Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to be Paid 1 Debt Subordinated Debt Securities 457(r) $ 1,500,000,000.

US$1,500,000,000 Westpac Banking Corporation (ABN 33 007 457 141) US$750,000,000 4.600% Notes due October 20, 2026 US$750,000,000 Floating Rate Notes due October 20, 2026

TABLE OF CONTENTS  Filed Pursuant to Rule 424(b)(5)  Registration Statement No. 333-283007 PROSPECTUS SUPPLEMENT (TO PROSPECTUS DATED November 5, 2024) US$1,500,000,000 Westpac Banking Corporation (ABN 33 007 457 141) US$750,000,000 4.600% Notes due October 20, 2026 US$750,000,000 Floating Rate Notes due October 20, 2026 We are offering US$750,000,000 aggregate principal amount of our 4.600% notes

US$1,500,000,000 Westpac Banking Corporation (ABN 33 007 457 141) 5.618% Subordinated Notes due 2035 Subject, upon the occurrence of a Non-Viability Trigger Event, to Conversion or possible Write-off, as more fully described in the accompanying prosp

TABLE OF CONTENTS  Filed Pursuant to Rule 424(b)(5)  Registration Statement No. 333-283008 PROSPECTUS SUPPLEMENT (TO PROSPECTUS DATED NOVEMBER 5, 2024) US$1,500,000,000 Westpac Banking Corporation (ABN 33 007 457 141) 5.618% Subordinated Notes due 2035 Subject, upon the occurrence of a Non-Viability Trigger Event, to Conversion or possible Write-off, as more fully described in the accompanying pro

Table 1: Newly Registered and Carry Forward Securities

Calculation of Filing Fee Tables F-3 WESTPAC BANKING CORP Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to be Paid 1 Debt Fixed Rate Senior Debt Securities 457(r) $ 749,812,500.

US$750,000,000 4.600% Notes due October 20, 2026 US$750,000,000 Floating Rate Notes due October 20, 2026

Filed Pursuant to Rule 433 Registration Statement No. 333-283007 Free Writing Prospectus (To the Preliminary Prospectus Supplement dated November 12, 2024 and Prospectus dated November 5, 2024) November 12, 2024 US$750,000,000 4.600% Notes due October 20, 2026 US$750,000,000 Floating Rate Notes due October 20, 2026 US$750,000,000 4.600% Notes due October 20, 2026 Issuer: Westpac Banking Corporatio

US$1,500,000,000 5.618% Subordinated Notes due 2035 Subject, upon the occurrence of a Non-Viability Trigger Event, to Conversion or possible Write-off, as more fully described in the Preliminary Prospectus Supplement dated November 12, 2024 (the “Pre

Filed Pursuant to Rule 433 Registration Statement No. 333-283008 Free Writing Prospectus (To the Preliminary Prospectus Supplement dated November 12, 2024 and Prospectus dated November 5, 2024) November 12, 2024 US$1,500,000,000 5.618% Subordinated Notes due 2035 Subject, upon the occurrence of a Non-Viability Trigger Event, to Conversion or possible Write-off, as more fully described in the Preli

Subject to Completion Preliminary Prospectus Supplement dated November 12, 2024

TABLE OF CONTENTS The information in this preliminary prospectus supplement is not complete and may be changed.

Subject to Completion Preliminary Prospectus Supplement dated November 12, 2024

TABLE OF CONTENTS The information in this preliminary prospectus supplement is not complete and may be changed.

156 WESTPAC GROUP 2024 ANNUAL REPORT HOW WE CREATE VALUE OUR FOUNDATIONS OUR BUSINESS THE VALUE WE CREATEa Passionate people who make a difference Data-informed insights and decision making Proactive risk management and risk culture Strong balance sh

Exhibit 15.2 154 WESTPAC GROUP 2024 ANNUAL REPORT EXHIBIT 15.2 Westpac Group 2024 Annual Report on Form 20-F Section 1 156 Strategic review 156 Corporate governance 196 Directors’ report 222 Remuneration report 236 Information on Westpac 263 Section 2 270 Reading this report 271 Group performance 276 Performance summary 276 Key financial information 277 Impact of Notable Items 278 Review of earnin

FIFTH AMENDED AND RESTATED SUBORDINATED INDENTURE WESTPAC BANKING CORPORATION THE BANK OF NEW YORK MELLON as Trustee Dated as of November 5, 2024 Providing for Issuance of Subordinated Debt Securities in Series

Exhibit 4.2 FIFTH AMENDED AND RESTATED SUBORDINATED INDENTURE between WESTPAC BANKING CORPORATION and THE BANK OF NEW YORK MELLON as Trustee Dated as of November 5, 2024 Providing for Issuance of Subordinated Debt Securities in Series Reconciliation and tie between this Fifth Amended and Restated Subordinated Indenture, dated as of November 5, 2024, and the Trust Indenture Act of 1939, as amended.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 Or ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended September 30, 2024 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT

Consent of Independent Registered Public Accounting Firm

Exhibit 15.1 FINANCIAL STATEMENTS EXHIBITS INDEX STRATEGIC REVIEW PERFORMANCE REVIEW SHAREHOLDER INFORMATION 153 EXHIBIT 15.1 Consent of Independent Registered Public Accounting Firm We hereby consent to the incorporation by reference in the Registration Statements on Form F-3 (Nos. 333-260702 and 333-260703) of Westpac Banking Corporation of our report dated 3 November 2024 relating to the financ

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTE

Exhibit 25.1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION 305(b)(2) ¨ THE BANK OF NEW YORK MELLON (Exact name of trustee as specified in its charter) New York (Jurisdiction

SECTION 906 CERTIFICATIONS Pursuant to 18 U.S.C. § 1350

Exhibit 13 152 WESTPAC GROUP 2024 ANNUAL REPORT EXHIBIT 13 SECTION 906 CERTIFICATIONS Pursuant to 18 U.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 5, 2024 Commission File Number 1-10167 WESTPAC BANKIN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 5, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

United States Securities and Exchange Commission Washington, D.C. 20549 Form F-N APPOINTMENT OF AGENT FOR SERVICE OF PROCESS BY FOREIGN BANKS AND FOREIGN INSURANCE COMPANIES AND CERTAIN OF THEIR HOLDING COMPANIES AND FINANCE SUBSIDIARIES MAKING PUBLI

United States Securities and Exchange Commission Washington, D.C. 20549 Form F-N APPOINTMENT OF AGENT FOR SERVICE OF PROCESS BY FOREIGN BANKS AND FOREIGN INSURANCE COMPANIES AND CERTAIN OF THEIR HOLDING COMPANIES AND FINANCE SUBSIDIARIES MAKING PUBLIC OFFERINGS OF SECURITIES IN THE UNITED STATES A. Name of issuer or person filing (“Filer”): Westpac Banking Corporation B. This is (select one): x an

Westpac Group Securities Trading Policy

Exhibit 11(B) 138 WESTPAC GROUP 2024 ANNUAL REPORT EXHIBIT 11(B): INSIDER TRADING POLICIES Securities trading Westpac’s Group Securities Trading Policy prohibits Directors, employees, secondees and contractors from trading in any securities and other financial products that they possess inside information on.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTE

Exhibit 25.1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION 305(b)(2) ¨ THE BANK OF NEW YORK MELLON (Exact name of trustee as specified in its charter) New York (Jurisdiction

Table 1: Newly Registered and Carry Forward Securities

Calculation of Filing Fee Tables F-3 WESTPAC BANKING CORP Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to be Paid 1 Debt Senior Debt Securities 457(r) 0.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 5, 2024 Commission File Number 1-10167 WESTPAC BANKIN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 5, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

POWER OF ATTORNEY

Exhibit 24.1 POWER OF ATTORNEY Each of the undersigned does hereby: (i) make, constitute and appoint each of, Michael Rowland, Chief Financial Officer, Joanne Dawson, Group Treasurer, Alexander Bischoff, Managing Director, Balance Sheet, Liquidity & Funding Management, Bharat Anand, General Manager, Group Finance, Stuart Brown, Managing Director, Head of Corporate and International Banking, Intern

Level 18, 275 Kent Street

Exhibit 1 Level 18, 275 Kent Street Sydney, NSW, 2000 6 November 2024 RETIREMENT OF NON-EXECUTIVE DIRECTORS Westpac Banking Corporation (Westpac) today announced the retirement from the Board of Independent Non-executive Directors Dr Nora Scheinkestel and Audette Exel AO.

Retirement of Group Executive, HR

Exhibit 1 Level 18, 275 Kent Street Sydney, NSW, 2000 5 November 2024 Retirement of Group Executive, HR Westpac CEO, Peter King has announced the retirement of Christine Parker, Group Executive, Human Resources.

POWER OF ATTORNEY

Exhibit 24.1 POWER OF ATTORNEY Each of the undersigned does hereby: (i) make, constitute and appoint each of, Michael Rowland, Chief Financial Officer, Joanne Dawson, Group Treasurer, Alexander Bischoff, Managing Director, Balance Sheet, Liquidity & Funding Management, Bharat Anand, General Manager, Group Finance, Stuart Brown, Managing Director, Head of Corporate and Institutional Banking, Intern

368 WESTPAC GROUP

Exhibit 16.1 368 WESTPAC GROUP 2024 ANNUAL REPORT EXHIBIT 16.1 Letter from PricewaterhouseCoopers to the SEC November 5, 2024 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Commissioners: We have read the statements made by Westpac Banking Corporation pursuant to Item 16F of Form 20-F (copy attached), which we understand will be filed with the Securities and Exchange Co

Table 1: Newly Registered and Carry Forward Securities

Calculation of Filing Fee Tables F-3 WESTPAC BANKING CORP Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to be Paid 1 Debt Subordinated Debt Securities 457(r) 0.

United States Securities and Exchange Commission Washington, D.C. 20549 Form F-N APPOINTMENT OF AGENT FOR SERVICE OF PROCESS BY FOREIGN BANKS AND FOREIGN INSURANCE COMPANIES AND CERTAIN OF THEIR HOLDING COMPANIES AND FINANCE SUBSIDIARIES MAKING PUBLI

United States Securities and Exchange Commission Washington, D.C. 20549 Form F-N APPOINTMENT OF AGENT FOR SERVICE OF PROCESS BY FOREIGN BANKS AND FOREIGN INSURANCE COMPANIES AND CERTAIN OF THEIR HOLDING COMPANIES AND FINANCE SUBSIDIARIES MAKING PUBLIC OFFERINGS OF SECURITIES IN THE UNITED STATES A. Name of issuer or person filing (“Filer”): Westpac Banking Corporation B. This is (select one): x an

SECTION 302 CERTIFICATION

Exhibit 12 150 WESTPAC GROUP 2024 ANNUAL REPORT EXHIBIT 12 SECTION 302 CERTIFICATION I, Peter Francis King, certify that: 1.

AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON NOVEMBER 5, 2024

TABLE OF CONTENTS AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON NOVEMBER 5, 2024 Registration No.

AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON NOVEMBER 5, 2024

TABLE OF CONTENTS AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON NOVEMBER 5, 2024 Registration No.

ASX Release 4 November 2024 Westpac 2024 Climate Report Westpac Banking Corporation (“Westpac”) today provides the attached Westpac 2024 Climate Report. For further information: Hayden Cooper Justin McCarthy Group Head of Media Relations General Mana

Exhibit 1 ASX Release 4 November 2024 Westpac 2024 Climate Report Westpac Banking Corporation (“Westpac”) today provides the attached Westpac 2024 Climate Report.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 4, 2024 Commission File Number 1-10167 WESTPAC BANKIN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 4, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 4, 2024 Commission File Number 1-10167 WESTPAC BANKIN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 4, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

PILLAR 3 REPORT SEPTEMBER 2024 INCORPORATING THE REQUIREMENTS OF APS330 WESTPAC BANKING CORPORATION ABN 33 007 457 141 Acknowledgement of Indigenous Peoples Westpac acknowledges the First Peoples of Australia. We recognise their ongoing role as Tradi

Exhibit 1 ASX Release 04 November 2024 Pillar 3 Report as at 30 September 2024 Westpac Banking Corporation (“Westpac”) today provides the attached Pillar 3 Report (September 2024).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 4, 2024 Commission File Number 1-10167 WESTPAC BANKIN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 4, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 4, 2024 Commission File Number 1-10167 WESTPAC BANKIN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 4, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

FINANCIAL PERFORMANCE REVIEW WESTPAC BANKING CORPORATION ABN 33 007 457 141 2024 SECOND HALF 2 WESTPAC GROUP 2024 SECOND HALF FINANCIAL PERFORMANCE REVIEW Contents GROUP PERFORMANCE 3 Performance overview 3 Performance summary 4 Key financial informa

Exhibit 1 ASX Release 4 November 2024 Westpac 2024 Second Half Financial Performance Review Westpac Banking Corporation (“Westpac”) today provides the attached Westpac 2024 Second Half Financial Performance Review.

ASX Release 4 November 2024 Appendix 4G and 2024 Corporate Governance Statement Westpac Banking Corporation (“Westpac”) today provides the attached Appendix 4G and Westpac Group 2024 Corporate Governance Statement. For further information: Hayden Coo

Exhibit 1 ASX Release 4 November 2024 Appendix 4G and 2024 Corporate Governance Statement Westpac Banking Corporation (“Westpac”) today provides the attached Appendix 4G and Westpac Group 2024 Corporate Governance Statement.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 4, 2024 Commission File Number 1-10167 WESTPAC BANKIN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 4, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

PRESENTATION 2024 FULL YEAR FINANCIAL RESULTS FOR THE 12 MONTHS ENDED 30 SEPTEMBER 2024 AND INVESTOR DISCUSSION PACK Westpac Banking Corporation ABN 33 007 457 141 2 Westpac Group 2024 Full Year Results Presentation & Investor Discussion Pack WESTPAC

Exhibit 1 ASX Release 4 November 2024 Westpac 2024 Presentation and Investor Discussion Pack Westpac Banking Corporation (“Westpac”) today provides the attached Westpac 2024 Presentation and Investor Discussion Pack.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 4, 2024 Commission File Number 1-10167 WESTPAC BANKIN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 4, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 4, 2024 Commission File Number 1-10167 WESTPAC BANKIN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 4, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

ASX Release 4 November 2024 Westpac 2024 Group Annual Report and Appendix 4E Westpac Banking Corporation (“Westpac”) today provides the attached Westpac 2024 Group Annual Report and Appendix 4E. For further information: Hayden Cooper Justin McCarthy

Exhibit 1 ASX Release 4 November 2024 Westpac 2024 Group Annual Report and Appendix 4E Westpac Banking Corporation (“Westpac”) today provides the attached Westpac 2024 Group Annual Report and Appendix 4E.

ASX Release 4 November 2024 2024 Risk Factors Westpac Banking Corporation (“Westpac”) today provides the attached 2024 Risk Factors. For further information: Hayden Cooper Justin McCarthy Group Head of Media Relations General Manager, Investor Relati

Exhibit 1 ASX Release 4 November 2024 2024 Risk Factors Westpac Banking Corporation (“Westpac”) today provides the attached 2024 Risk Factors.

Appendix 1 - Summary of FY24 and 2H24 Notable Items $m Economic hedges Hedge ineffectiveness Total FY24 Net interest income (171) 8 (163) Non-interest income (12) - (12) Net operating income (183) 8 (175) Operating expenses - - - Pre-provision profit

Exhibit 1 ASX Release Level 18, 275 Kent Street Sydney, NSW, 2000 22 October 2024 WESTPAC’S FULL YEAR 2024 (FY24) NOTABLE ITEMS AND REPORTING CHANGES FY24 Notable Items Westpac’s reported net profit after tax in FY24 will be reduced by $123 million due to Notable Items that relate solely to unrealised fair value gains and losses on economic hedges and net ineffectiveness on qualifying hedges, which reverse over time.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 22 October, 2024 Commission File Number 1-10167 WESTPAC BANKIN

6-K 1 tm2423589d46k.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 22 October, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALI

WESTPAC ENTERS INTO AGREEMENT TO SELL AUTO FINANCE LOAN BOOK

Exhibit 1 ASX Release Level 18, 275 Kent Street Sydney, NSW, 2000 3 October 2024 WESTPAC ENTERS INTO AGREEMENT TO SELL AUTO FINANCE LOAN BOOK Westpac has entered into an agreement to sell its auto finance loans and lease receivables to Resimac Group Limited (ASX: RMC, “Resimac”).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 3 October, 2024 Commission File Number 1-10167 WESTPAC BANKING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 3 October, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 September 26, 2024 Commission File Number 1-10167 WESTPAC BANK

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 September 26, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

BUSINESS SPOTLIGHT Westpac Banking Corporation ABN 33 007 457 141 26 SEPTEMBER 2024 MORTGAGES – FROM APPLICATION TO SETTLEMENT Damien MacRae, Managing Director Mortgages Bhaskar Katta, General Manager Group Operations Peta Brown, Head of Operations,

Exhibit 1 ASX Release 26 September 2024 Westpac Business Spotlight Westpac Banking Corporation (“Westpac”) today provides the attached Business Spotlight Pack which includes information relating to: • Mortgages – from application to settlement; • Business Lending; • Cyber and Scams; and • Artificial Intelligence.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 September 9, 2024 Commission File Number 1-10167 WESTPAC BANKI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 September 9, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Level 18, 275 Kent Street

Exhibit 1 Level 18, 275 Kent Street Sydney, NSW, 2000 9 September 2024 Anthony Miller appointed Chief Executive Officer of Westpac The Westpac Board of Directors has announced the appointment of Anthony Miller as Group CEO and Managing Director, commencing 16 December 2024.

ASX ANNOUNCEMENT I WESTPAC 3Q24 UPDATE ASX ANNOUNCEMENT 3Q24 UPDATE 19 AUGUST 2024 FINANCIAL HIGHLIGHTS $1.8bn Unaudited net profit up 6% on 1H24 average up 2% ex Notable Items 1.92% Net interest margin up 3bps on 1H24 12.0% CET1 capital ratio above

Exhibit 2 ASX Release 19 August 2024 WESTPAC 3Q24 UPDATE Following is Westpac’s 3Q24 update for the three months ended 30 June 2024.

JUNE 2024 INCORPORATING THE REQUIREMENTS OF APS 330 WESTPAC BANKING CORPORATION ABN 33 007 457 141 Pillar 3 Report Table of contents Acknowledgment of Indigenous Peoples Westpac acknowledges the First Peoples of Australia and recognises their ongoing

Exhibit 1 ASX Release 19 August 2024 Pillar 3 Report as at 30 June 2024 Westpac Banking Corporation (“Westpac”) today provides the attached Pillar 3 Report (June 2024).

3Q24 INVESTOR DISCUSSION PACK FOR THE 3 MONTHS ENDED 30 JUNE 2024 © Westpac Banking Corporation ABN 33 007 457 141 This document should be read in conjunction with Westpac’s June 2024 Pillar 3 Report. All amounts are in Australian dollars. 3Q24 SUMMA

Exhibit 3 ASX Release 19 August 2024 WESTPAC 3Q24 INVESTOR DISCUSSION PACK Following are Westpac’s 3Q24 slides covering financial performance, capital, credit quality and funding for the three months ended 30 June 2024.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 August 19, 2024 Commission File Number 1-10167 WESTPAC BANKING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 August 19, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

WESTPAC CLOSES RAMS TO NEW BUSINESS AND RETAINS EXISTING RAMS LOAN PORTFOLIO

Exhibit 1 Level 18, 275 Kent Street Sydney, NSW, 2000 6 August 2024 WESTPAC CLOSES RAMS TO NEW BUSINESS AND RETAINS EXISTING RAMS LOAN PORTFOLIO Westpac has completed its strategic review of the RAMS Financial Group Pty Limited (RAMS) and will further simplify its business by closing RAMS to new home loan applications from today.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 August 6, 2024 Commission File Number 1-10167 WESTPAC BANKING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 August 6, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 July 19, 2024 Commission File Number 1-10167 WESTPAC BANKING C

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 July 19, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Sydney, NSW, 2000

Exhibit 1 Level 18, 275 Kent Street Sydney, NSW, 2000 19 July 2024 Reduction in operational risk capital overlay Westpac acknowledges the Australian Prudential Regulation Authority’s (APRA) decision to reduce Westpac’s total operational risk capital overlay from $1 billion to $500 million.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 28, 2024 Commission File Number 1-10167 WESTPAC BANKING CO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 28, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Sydney, NSW, 2000

Exhibit 1 Level 18, 275 Kent Street Sydney, NSW, 2000 27 May 2024 Fitch Ratings (Fitch) upgrades ratings for Westpac Banking Corporation (Westpac) Today Fitch upgraded Westpac’s Long-Term Issuer Default Rating (IDR) by one notch to 'AA-'.

THIRTY-FOURTH SUPPLEMENTAL INDENTURE WESTPAC BANKING CORPORATION THE BANK OF NEW YORK MELLON as Trustee Dated as of May 16, 2024 THIRTY-FOURTH SUPPLEMENTAL INDENTURE

Exhibit 4.1 Execution Version THIRTY-FOURTH SUPPLEMENTAL INDENTURE between WESTPAC BANKING CORPORATION and THE BANK OF NEW YORK MELLON as Trustee Dated as of May 16, 2024 THIRTY-FOURTH SUPPLEMENTAL INDENTURE THIRTY-FOURTH SUPPLEMENTAL INDENTURE, dated as of May 16, 2024 (the “Thirty-Fourth Supplemental Indenture”), between WESTPAC BANKING CORPORATION (ABN 33 007 457 141), a company incorporated in

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 16, 2024 Commission File Number 1- 10167 WESTPAC BANKING C

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 16, 2024 Commission File Number 1- 10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

WESTPAC BANKING CORPORATION US$750,000,000 5.200% Notes due April 16, 2026 US$750,000,000 5.050% Notes due April 16, 2029 US$750,000,000 Floating Rate Notes due April 16, 2026 US$750,000,000 Floating Rate Notes due April 16, 2029 Underwriting Agreeme

Exhibit 1.1 Execution Version WESTPAC BANKING CORPORATION US$750,000,000 5.200% Notes due April 16, 2026 US$750,000,000 5.050% Notes due April 16, 2029 US$750,000,000 Floating Rate Notes due April 16, 2026 US$750,000,000 Floating Rate Notes due April 16, 2029 Underwriting Agreement May 8, 2024 Barclays Capital Inc. 745 Seventh Avenue New York, New York 10019 United States of America BofA Securitie

Exhibit 1 ASX Release 14 May 2024 Appointment of Andy Maguire to the Westpac Board Westpac Banking Corporation (Westpac) has today announced the appointment of Andy Maguire as an independent Non-executive Director. Mr Maguire is expected to join the

Exhibit 1 ASX Release 14 May 2024 Appointment of Andy Maguire to the Westpac Board Westpac Banking Corporation (Westpac) has today announced the appointment of Andy Maguire as an independent Non-executive Director.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 15, 2024 Commission File Number 1-10167 WESTPAC BANKING CO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 15, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Calculation of Filing Fee Tables (Form Type) Westpac Banking Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities

Exhibit 107 Calculation of Filing Fee Tables 424(b)(5)1 (Form Type) Westpac Banking Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Senior Debt Securities 5.

US$3,000,000,000 Westpac Banking Corporation (ABN 33 007 457 141) US$750,000,000  5.200% Notes due April 16, 2026 US$750,000,000  5.050% Notes due April 16, 2029 US$750,000,000 Floating Rate Notes due April 16, 2026 US$750,000,000 Floating Rate Notes

TABLE OF CONTENTS  Filed Pursuant to Rule 424(b)(5)  Registration Statement No. 333-260702 PROSPECTUS SUPPLEMENT (TO PROSPECTUS DATED NOVEMBER 3, 2021) US$3,000,000,000 Westpac Banking Corporation (ABN 33 007 457 141) US$750,000,000  5.200% Notes due April 16, 2026 US$750,000,000  5.050% Notes due April 16, 2029 US$750,000,000 Floating Rate Notes due April 16, 2026 US$750,000,000 Floating Rate Not

US$750,000,000 5.200% Notes due April 16, 2026 US$750,000,000 Floating Rate Notes due April 16, 2026 US$750,000,000 5.050% Notes due April 16, 2029 US$750,000,000 Floating Rate Notes due April 16, 2029

Filed Pursuant to Rule 433 Registration Statement No. 333-260702 Free Writing Prospectus (To the Preliminary Prospectus Supplement dated May 8, 2024 and Prospectus dated November 3, 2021) May 8, 2024 US$750,000,000 5.200% Notes due April 16, 2026 US$750,000,000 Floating Rate Notes due April 16, 2026 US$750,000,000 5.050% Notes due April 16, 2029 US$750,000,000 Floating Rate Notes due April 16, 202

Subject to Completion Preliminary Prospectus Supplement dated May 8, 2024

TABLE OF CONTENTS The information in this preliminary prospectus supplement is not complete and may be changed.

$3,342m Net profit, up 5% on 2H23

Exhibit 1 2024 Interim Financial Results THE INTERIM FINANCIAL RESULTS ANNOUNCEMENT HAS BEEN PREPARED FOR DISTRIBUTION IN THE UNITED STATES OF AMERICA Westpac Banking Corporation ABN 33 007 457 141 ii WESTPAC GROUP 2024 INTERIM FINANCIAL RESULTS RESULTS ANNOUNCEMENT TO THE MARKET Introduction Our interim period refers to the six months ended 31 March 2024 (First Half 2024).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 7, 2024 Commission File Number 1-10167 WESTPAC BANKING COR

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 7, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 6, 2024 Commission File Number 1-10167 WESTPAC BANKING COR

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 6, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Exhibit 1 ASX Release 6 May 2024 Westpac completes CORE Integrated Plan Westpac has today released the 12th and final Independent Reviewer report on its Customer Outcomes and Risk Excellence (CORE) program. Promontory Australia’s final report confirm

Exhibit 1 ASX Release 6 May 2024 Westpac completes CORE Integrated Plan Westpac has today released the 12th and final Independent Reviewer report on its Customer Outcomes and Risk Excellence (CORE) program.

ii WESTPAC GROUP 2024 INTERIM FINANCIAL RESULTS RESULTS ANNOUNCEMENT TO THE MARKET ASX Appendix 4D Results for announcement to the market1 Report for the half year ended 31 March 20242 Revenue from ordinary activitiesa,b ($m) down 4% to $10,590 Profi

Exhibit 1 ASX Release 6 May 2024 Westpac 2024 Interim Financial Results Announcement (incorporating the requirements of Appendix 4D) Westpac Banking Corporation (“Westpac”) today provides the attached Westpac 2024 Interim Financial Results Announcement (incorporating the requirements of Appendix 4D).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 6, 2024 Commission File Number 1-10167 WESTPAC BANKING COR

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 6, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

ASX Release 6 May 2024 Westpac 1H24 Presentation and Investor Discussion Pack Westpac Banking Corporation (“Westpac”) today provides the attached Westpac 1H24 Presentation and Investor Discussion Pack. For further information: Hayden Cooper Justin Mc

Exhibit 1 ASX Release 6 May 2024 Westpac 1H24 Presentation and Investor Discussion Pack Westpac Banking Corporation (“Westpac”) today provides the attached Westpac 1H24 Presentation and Investor Discussion Pack.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 6, 2024 Commission File Number 1-10167 WESTPAC BANKING COR

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 6, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 6, 2024 Commission File Number 1-10167 WESTPAC BANKING COR

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 6, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

ASX Release 6 May 2024 Pillar 3 Report as at 31 March 2024 Westpac Banking Corporation (“Westpac”) today provides the attached Pillar 3 Report (March 2024). For further information: Hayden Cooper Justin McCarthy Group Head of Media Relations General

Exhibit 1 ASX Release 6 May 2024 Pillar 3 Report as at 31 March 2024 Westpac Banking Corporation (“Westpac”) today provides the attached Pillar 3 Report (March 2024).

Appendix 3A.1 - Notification of dividend / distribution Appendix 3A.1 - Notification of dividend / distribution 1 / 7 Announcement Summary Entity name WESTPAC BANKING CORPORATION Security on which the Distribution will be paid WBC - ORDINARY FULLY PA

Exhibit 2 Appendix 3A.1 - Notification of dividend / distribution Appendix 3A.1 - Notification of dividend / distribution 1 / 7 Announcement Summary Entity name WESTPAC BANKING CORPORATION Security on which the Distribution will be paid WBC - ORDINARY FULLY PAID Announcement Type New announcement Date of this announcement 6/5/2024 Distribution Amount AUD 0.90000000 Ex Date 9/5/2024 Record Date 10/

Appendix 1 – Summary of 1H24 Notable Items 1H24 ($m) Asset sales and revaluations Provisions for litigation, fines and penalties Restructuring costs Asset write-downs Hedging items Total Net interest income - - - - (224) (224) Non-interest income - -

Exhibit 1 ASX Release 23 April 2024 Westpac’s First Half 2024 (1H24) Notable Items and Reporting Changes 1H24 Notable Items Westpac’s reported net profit after tax in 1H24 will be reduced by $164 million due to Notable Items.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 April 23, 2024 Commission File Number 1-10167 WESTPAC BANKING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 April 23, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

EX-1

Exhibit 1 ASX Release 3 April 2024 S&P Global Ratings (S&P) upgrades ratings for Westpac Banking Corporation (Westpac) and Westpac New Zealand Limited (WNZL) Today S&P upgraded the stand-alone credit profile of Westpac by one notch to ‘a+’ from ‘a’ to reflect its assessment that industry-wide risks for Australian banks have reduced.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 April 3, 2024 Commission File Number 1-10167 WESTPAC BANKING C

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 April 3, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 March 27, 2024 Commission File Number 1-10167 WESTPAC BANKING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 March 27, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

ASX Release 27 March 2024 Westpac technology simplification update Westpac Banking Corporation (“Westpac”) today provides the attached Westpac technology simplification update. For further information: Hayden Cooper Justin McCarthy Group Head of Medi

Exhibit 1 ASX Release 27 March 2024 Westpac technology simplification update Westpac Banking Corporation (“Westpac”) today provides the attached Westpac technology simplification update.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 March 8, 2024 Commission File Number 1-10167 WESTPAC BANKING C

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 March 8, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Sydney, NSW, 2000

Exhibit 1 Level 18, 275 Kent Street Sydney, NSW, 2000 8 March 2024 Westpac external auditor After the completion of a competitive tender process, Westpac has confirmed KPMG as the preferred firm to be appointed as Westpac’s external auditor for the 2025 financial year, beginning 1 October 2024.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 March 6, 2024 Commission File Number 1-10167 WESTPAC BANKING C

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 March 6, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Exhibit 1 ASX Release 6 March 2024 Moody’s upgrades ratings for Westpac Banking Corporation Today Moody’s Investors Service (Moody’s) upgraded its ratings for Westpac Banking Corporation. The changes to Westpac’s ratings are summarised below: Previou

Exhibit 1 ASX Release 6 March 2024 Moody’s upgrades ratings for Westpac Banking Corporation Today Moody’s Investors Service (Moody’s) upgraded its ratings for Westpac Banking Corporation.

DECEMBER 2023 INCORPORATING THE REQUIREMENTS OF APS330 WESTPAC BANKING CORPORATION ABN 33 007 457 141 Pillar 3 Report ii WESTPAC GROUP DECEMBER 2023 PILLAR 3 REPORT Table of contents Structure of Pillar 3 Report EXECUTIVE SUMMARY 1 Introduction 3 Gro

Exhibit 1 ASX Release 19 February 2024 Pillar 3 Report as at 31 December 2023 Westpac Banking Corporation (“Westpac”) today provides the attached Pillar 3 Report (December 2023).

19 FEBRUARY 2024 $1.5bn Unaudited net profit, down 6% on 2H23 average 1.78% Net interest margin 12.3% CET1 capital ratio, down 9bps on Sep-23 $1.8bn Unaudited net profit ex Notable Items, flat on 2H23 average 1.80% Core NIM1 , down 4bps on 2H23 1.37%

Exhibit 2 ASX Release 19 FEBRUARY 2024 WESTPAC 1Q24 UPDATE Following is Westpac’s 1Q24 update, for the three months ended 31 December 2023.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 February 20, 2024 Commission File Number 1-10167 WESTPAC BANKI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 February 20, 2024 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

1Q24 INVESTOR DISCUSSION PACK FOR THE 3 MONTHS ENDED 31 DECEMBER 2023 WESTPAC BANKING CORPORATION ABN 33 007 457 141 This document should be read in conjunction with Westpac’s December 2023 Pillar 3 Report. All amounts are in Australian dollars. 1Q24

Exhibit 3 ASX Release 19 February 2024 WESTPAC 1Q24 INVESTOR DISCUSSION PACK Following is Westpac’s 1Q24 slides covering capital, credit quality, funding and financial performance for the three months ended December 2023.

WEBNF / Westpac Banking Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 1)* Name of issuer: Westpac Banking Corp Title of Class of Securities: Common Stock CUSIP Number: 006076146 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

ANNUAL GENERAL MEETING Thursday, 14 December, 2023 WESTPAC BANKING CORPORATION Short Description For Against For Against Abstain ** As required by section 251AA(2) of the Corporations Act 2001 (Commonwealth) the following statistics are provided in r

Exhibit 1 ASX Release 14 December 2023 Results of 2023 Annual General Meeting In accordance with ASX Listing Rule 3.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 December 14, 2023 Commission File Number 1-10167 WESTPAC BANKI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 December 14, 2023 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 30, 2023 Commission File Number 1-10167 WESTPAC BANKI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 30, 2023 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

SUSTAINABILITY MARKET UPDATE 30 November 2023 WESTPAC BANKING CORPORATION ABN 33 007 457 141 PETER KING Chief Executive Officer 3 1 This presentation contains ‘forward-looking statements’ and statements of expectation reflecting Westpac’s current vie

Exhibit 1 ASX Release 30 November 2023 Westpac Sustainability update Westpac Banking Corporation (“Westpac”) today provides the attached Sustainability update which will be referenced in a market briefing available to shareholders via webcast.

THIRTY-THIRD SUPPLEMENTAL INDENTURE WESTPAC BANKING CORPORATION THE BANK OF NEW YORK MELLON as Trustee Dated as of November 17, 2023 THIRTY-THIRD SUPPLEMENTAL INDENTURE

Exhibit 4.1 THIRTY-THIRD SUPPLEMENTAL INDENTURE between WESTPAC BANKING CORPORATION and THE BANK OF NEW YORK MELLON as Trustee Dated as of November 17, 2023 THIRTY-THIRD SUPPLEMENTAL INDENTURE THIRTY-THIRD SUPPLEMENTAL INDENTURE, dated as of November 17, 2023 (the “Thirty-Third Supplemental Indenture”), between WESTPAC BANKING CORPORATION (ABN 33 007 457 141), a company incorporated in the Commonw

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 17, 2023 Commission File Number 1- 10167 WESTPAC BANK

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 17, 2023 Commission File Number 1- 10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

WESTPAC BANKING CORPORATION US$1,000,000,000 5.512% Notes due November 17, 2025 US$1,250,000,000 5.535% Notes due November 17, 2028 US$500,000,000 Floating Rate Notes due November 17, 2025 Underwriting Agreement

Exhibit 1.1 Execution Version WESTPAC BANKING CORPORATION US$1,000,000,000 5.512% Notes due November 17, 2025 US$1,250,000,000 5.535% Notes due November 17, 2028 US$500,000,000 Floating Rate Notes due November 17, 2025 Underwriting Agreement November 8, 2023 BofA Securities, Inc. One Bryant Park New York, New York 10036 United States of America Citigroup Global Markets Inc. 388 Greenwich Street Ne

FOURTH SUPPLEMENTAL INDENTURE WESTPAC BANKING CORPORATION THE BANK OF NEW YORK MELLON as Trustee Dated as of November 17, 2023 FOURTH SUPPLEMENTAL INDENTURE

Exhibit 4.1 FOURTH SUPPLEMENTAL INDENTURE between WESTPAC BANKING CORPORATION and THE BANK OF NEW YORK MELLON as Trustee Dated as of November 17, 2023 FOURTH SUPPLEMENTAL INDENTURE FOURTH SUPPLEMENTAL INDENTURE, dated as of November 17, 2023 (the “Fourth Supplemental Indenture”), between WESTPAC BANKING CORPORATION (ABN 33 007 457 141), a company incorporated in the Commonwealth of Australia under

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 17, 2023 Commission File Number 1-10167 WESTPAC BANKI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 17, 2023 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

WESTPAC BANKING CORPORATION US$750,000,000 6.820% Subordinated Notes due 2033 Underwriting Agreement

Exhibit 1.1 Execution Version WESTPAC BANKING CORPORATION US$750,000,000 6.820% Subordinated Notes due 2033 Underwriting Agreement November 8, 2023 BofA Securities, Inc. One Bryant Park New York, New York 10036 United States of America Citigroup Global Markets Inc. 388 Greenwich Street New York, New York 10013 United States of America J.P. Morgan Securities LLC 383 Madison Avenue New York, New Yor

US$750,000,000 Westpac Banking Corporation (ABN 33 007 457 141) 6.820% Subordinated Notes due 2033 Subject, upon the occurrence of a Non-Viability Trigger Event, to Conversion or possible Write-off, as more fully described in the accompanying prospec

TABLE OF CONTENTS  Filed Pursuant to Rule 42(b)(5)  Registration Statement No.333-260703 PROSPECTUS SUPPLEMENT (TO PROSPECTUS DATED NOVEMBER 3, 2021) US$750,000,000 Westpac Banking Corporation (ABN 33 007 457 141) 6.820% Subordinated Notes due 2033 Subject, upon the occurrence of a Non-Viability Trigger Event, to Conversion or possible Write-off, as more fully described in the accompanying prospec

US$2,750,000,000 Westpac Banking Corporation (ABN 33 007 457 141) US$1,000,000,000 5.512% Notes due November 17, 2025 US$1,250,000,000 5.535% Notes due November 17, 2028 US$500,000,000 Floating Rate Notes due November 17, 2025

TABLE OF CONTENTS  Filed Pursuant to Rule 424(b)(5)  Registration Statement No. 333-260702 PROSPECTUS SUPPLEMENT (TO PROSPECTUS DATED NOVEMBER 3, 2021) US$2,750,000,000 Westpac Banking Corporation (ABN 33 007 457 141) US$1,000,000,000 5.512% Notes due November 17, 2025 US$1,250,000,000 5.535% Notes due November 17, 2028 US$500,000,000 Floating Rate Notes due November 17, 2025 We are offering US$1,

Calculation of Filing Fee Tables (Form Type) Westpac Banking Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities

Exhibit 107 Calculation of Filing Fee Tables 424(b)(5)(1) (Form Type) Westpac Banking Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Subordinated Debt Securities 6.

Calculation of Filing Fee Tables (Form Type) Westpac Banking Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities

Exhibit 107 Calculation of Filing Fee Tables 424(b)(5)1 (Form Type) Westpac Banking Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Senior Debt Securities 5.

US$750,000,000 6.820% Subordinated Notes due 2033 Subject, upon the occurrence of a Non-Viability Trigger Event, to Conversion or possible Write-off, as more fully described in the Preliminary Prospectus Supplement dated November 8, 2023 (the “Prelim

Filed Pursuant to Rule 433 Registration Statement No. 333-260703 Free Writing Prospectus (To the Preliminary Prospectus Supplement dated November 8, 2023 and Prospectus dated November 3, 2021) November 8, 2023 US$750,000,000 6.820% Subordinated Notes due 2033 Subject, upon the occurrence of a Non-Viability Trigger Event, to Conversion or possible Write-off, as more fully described in the Prelimina

US$1,000,000,000 5.512% Notes due November 17, 2025 US$500,000,000 Floating Rate Notes due November 17, 2025 US$1,250,000,000 5.535% Notes due November 17, 2028

Filed Pursuant to Rule 433 Registration Statement No. 333-260702 Free Writing Prospectus (To the Preliminary Prospectus Supplement dated November 8, 2023 and Prospectus dated November 3, 2021) November 8, 2023 US$1,000,000,000 5.512% Notes due November 17, 2025 US$500,000,000 Floating Rate Notes due November 17, 2025 US$1,250,000,000 5.535% Notes due November 17, 2028 US$1,000,000,000 5.512% Notes

8 November 2023

Exhibit 1 ASX Level 18, 275 Kent Street Sydney, NSW, 2000 Release 8 November 2023 Westpac tenders external audit services Westpac announced today that it has commenced a tender for its external audit services.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 8, 2023 Commission File Number 1-10167 WESTPAC BANKIN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 8, 2023 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Subject to Completion Preliminary Prospectus Supplement dated November 8, 2023

TABLE OF CONTENTS The information in this preliminary prospectus supplement is not complete and may be changed.

Subject to Completion Preliminary Prospectus Supplement dated November 8, 2023

TABLE OF CONTENTS The information in this preliminary prospectus supplement is not complete and may be changed.

141 This page has been intentionally left blank. 2023 HIGHLIGHTS1 SHAREHOLDERS CUSTOMERS OUR PEOPLE COMMUNITY ENVIRONMENT $7,195M Net Profit, up 26% #1 Australian banking app2 75 Organisational Health Index $3.4BN Taxes paid globally, including the b

Exhibit 15.2 140 WESTPAC GROUP 2023 ANNUAL REPORT Exhibit 15.2 Westpac Group 2023 Annual Report on Form 20-F Section 1 142 Strategic review 142 Corporate governance 184 Directors’ report 208 Remuneration report 222 Information on Westpac 249 Section 2 254 Reading this report 255 Group performance 259 Performance summary 259 Key financial information 259 Impact of Notable Items 260 Review of earnin

Consent of Independent Registered Public Accounting Firm

Exhibit 15.1 139 EXHIBIT 15.1 Consent of Independent Registered Public Accounting Firm We hereby consent to the incorporation by reference in the Registration Statements on Form F-3 (Nos. 333-260702 and 333-260703) of Westpac Banking Corporation of our report dated 6 November 2023 relating to the financial statements and the effectiveness of internal control over financial reporting which appears

SECTION 906 CERTIFICATIONS Pursuant to 18 U.S.C. § 1350

Exhibit 13 138 WESTPAC GROUP 2023 ANNUAL REPORT EXHIBIT 13 SECTION 906 CERTIFICATIONS Pursuant to 18 U.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 Or ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended September 30, 2023 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT

SECTION 302 CERTIFICATION

Exhibit 12 136 WESTPAC GROUP 2023 ANNUAL REPORT EXHIBIT 12 SECTION 302 CERTIFICATION I, Peter Francis King, certify that: 1.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 6, 2023 Commission File Number 1-10167 WESTPAC BANKIN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 6, 2023 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 6, 2023 Commission File Number 1-10167 WESTPAC BANKIN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 6, 2023 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Exhibit 1 ASX Release 6 November 2023 Westpac releases latest Independent Reviewer reports on CORE program Westpac has today released the tenth and eleventh Independent Reviewer reports for the quarters ended in June 2023 and September 2023, updating

Exhibit 1 ASX Release 6 November 2023 Westpac releases latest Independent Reviewer reports on CORE program Westpac has today released the tenth and eleventh Independent Reviewer reports for the quarters ended in June 2023 and September 2023, updating progress of its Integrated Plan to improve risk culture, governance and accountability.

WESTPAC 2023 FULL YEAR RESULTS INDEX 2023 Full Year Results Presentation 3 Investor Discussion Pack of 2023 Full Year Results 33 Earnings drivers 36 Credit quality and provisions 48 Non-credit risk management 69 Capital, Funding and Liquidity 76 Cust

Exhibit 1 ASX Release 6 November 2023 Westpac 2023 Presentation and Investor Discussion Pack Westpac Banking Corporation (“Westpac”) today provides the attached Westpac 2023 Presentation and Investor Discussion Pack.

ASX Appendix 4E Results for announcement to the market1 Report for the full year ended 30 September 2023² Revenue from ordinary activities3,4 ($m) up 10% to $21,645 Profit from ordinary activities after tax attributable to equity holders 4 ($m) up 26

Exhibit 1 ASX Release 6 November 2023 Westpac 2023 Group Annual Report and Appendix 4E Westpac Banking Corporation (“Westpac”) today provides the attached Westpac 2023 Group Annual Report and Appendix 4E.

II WESTPAC GROUP SEPTEMBER 2023 PILLAR 3 REPORT TABLE OF CONTENTS Structure of Pillar 3 Report EXECUTIVE SUMMARY 1 Introduction 4 Risk appetite and risk types 5 Controlling and managing risk 6 Group structure 11 Capital overview 13 Leverage ratio 17

Exhibit 1 PILLAR 3 REPORT SEPTEMBER 2023 INCORPORATING THE REQUIREMENTS OF APS330 WESTPAC BANKING CORPORATION ABN 33 007 457 141 II WESTPAC GROUP SEPTEMBER 2023 PILLAR 3 REPORT TABLE OF CONTENTS Structure of Pillar 3 Report EXECUTIVE SUMMARY 1 Introduction 4 Risk appetite and risk types 5 Controlling and managing risk 6 Group structure 11 Capital overview 13 Leverage ratio 17 Credit risk managemen

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 6, 2023 Commission File Number 1-10167 WESTPAC BANKIN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 6, 2023 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 6, 2023 Commission File Number 1-10167 WESTPAC BANKIN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 6, 2023 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 6, 2023 Commission File Number 1-10167 WESTPAC BANKIN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 6, 2023 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Rules 4.7.3 and 4.10.3 ASX Listing Rules Appendix 4G (current at 17/7/2020) Page 1 Appendix 4G Key to Disclosures Corporate Governance Council Principles and Recommendations Name of entity WESTPAC BANKING CORPORATION ABN/ARBN Financial year ended: 33

Exhibit 1 ASX Release 6 November 2023 Appendix 4G and 2023 Corporate Governance Statement Westpac Banking Corporation (“Westpac”) today provides the attached Appendix 4G and Westpac Group 2023 Corporate Governance Statement.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 6, 2023 Commission File Number 1-10167 WESTPAC BANKIN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 6, 2023 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 6, 2023 Commission File Number 1-10167 WESTPAC BANKIN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 November 6, 2023 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

This page is intentionally blank WESTPAC 2023 CLIMATE REPORT CREATING BETTER FUTURES TOGETHER Our approach to climate reporting Outlining our approach to managing climate change risks and opportunities is inherently challenging as measuring, reportin

Exhibit 1 ASX Release 6 November 2023 Westpac 2023 Climate Report Westpac Banking Corporation (“Westpac”) today provides the attached Westpac 2023 Climate Report.

FINANCIAL PERFORMANCE REVIEW WESTPAC BANKING CORPORATION ABN 33 007 457 141 2023 SECOND HALF ii WESTPAC GROUP 2023 SECOND HALF FINANCIAL PERFORMANCE REVIEW Contents GROUP PERFORMANCE Performance overview Performance summary Impact of Notable Items Re

Exhibit 1 ASX Release 6 November 2023 Westpac 2023 Second Half Financial Performance Review Westpac Banking Corporation (“Westpac”) today provides the attached Westpac 2023 Second Half Financial Performance Review.

Appendix 1 – Details of items affecting Westpac’s FY23 Financial Results This table details how the Notable Items will be described in our FY23 Financial Results. Category FY23 Net profit (after tax) Detail (pre-tax) Asset sales and revaluations $256

Exhibit 1 ASX Release 26 October 2023 Westpac’s Full Year 2023 (FY23) Notable Items Westpac today announced that its reported net profit after tax in FY23 will be reduced by $173 million due to Notable Items, significantly lower than FY22 Notable Items of $874 million.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 October 26, 2023 Commission File Number 1-10167 WESTPAC BANKIN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 October 26, 2023 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

24 October 2023

Exhibit 1 Level 18, 275 Kent Street Sydney, NSW, 2000 24 October 2023 CHRIS LYNCH TO LEAVE WESTPAC BOARD Westpac Banking Corporation (Westpac) has today announced that Chris Lynch has decided not to stand for re-election as an Independent Non-executive Director at Westpac’s 2023 Annual General Meeting (2023 AGM) and, accordingly, will step down from the Board effective from the end of the AGM on 14 December 2023.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 October 24, 2023 Commission File Number 1-10167 WESTPAC BANKIN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 October 24, 2023 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Steven Gregg appointed Westpac Chair

Exhibit 1 Level 18, 275 Kent Street Sydney, NSW, 2000 16 October 2023 Steven Gregg appointed Westpac Chair Westpac Group today announced the appointment of Steven Gregg as a Non-executive Director and Chairman-Elect.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 October 16, 2023 Commission File Number 1-10167 WESTPAC BANKIN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 October 16, 2023 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Exhibit 1 ASX Release 4 October 2023 WESTPAC TO RETAIN ITS PACIFIC BANKING BUSINESSES Westpac has today announced it has concluded the sales process for its Pacific banking businesses and will retain Westpac Fiji and Westpac Bank PNG Limited. Westpac

Exhibit 1 ASX Release 4 October 2023 WESTPAC TO RETAIN ITS PACIFIC BANKING BUSINESSES Westpac has today announced it has concluded the sales process for its Pacific banking businesses and will retain Westpac Fiji and Westpac Bank PNG Limited.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 October 4, 2023 Commission File Number 1-10167 WESTPAC BANKING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 October 4, 2023 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Strategy Update Westpac Institutional Bank September 2023 WESTPAC BANKING CORPORATION ABN 33 007 457 141 Anthony Miller Group Executive WIB, Business & Wealth Gaining momentum in our institutional bank 3 44% 35% 21% CIB FM GTS WIB Revenue split 1H23

Exhibit 1 ASX Release 14 September 2023 Strategy Update – Westpac Institutional Bank Westpac Banking Corporation (“Westpac”) today provides the attached 2023 Strategy Update – Westpac Institutional Bank For further information: Hayden Cooper Justin McCarthy Group Head of Media Relations General Manager, Investor Relations 0402 393 619 0422 800 321 This document has been authorised for release by Tim Hartin, Company Secretary.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 September 14, 2023 Commission File Number 1-10167 WESTPAC BANK

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 September 14, 2023 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 September 5, 2023 Commission File Number 1-10167 WESTPAC BANKI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 September 5, 2023 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

ASX Release 5 September 2023 Westpac acknowledges ASIC proceedings Westpac acknowledges the civil penalty proceedings commenced by ASIC in the Federal Court alleging contraventions under the National Credit Code (Credit Code) and National Consumer Cr

Exhibit 1 ASX Release 5 September 2023 Westpac acknowledges ASIC proceedings Westpac acknowledges the civil penalty proceedings commenced by ASIC in the Federal Court alleging contraventions under the National Credit Code (Credit Code) and National Consumer Credit Protection Act (NCCP Act).

ASX ANNOUNCEMENT WESTPAC 3Q23 UPDATE FINANCIAL SUMMARY $1.8bn Unaudited Net Profit1 2.06% Group NIM, up 10 bps on 1H23 11.9% CET1 capital ratio, down 42 bps on Mar-23 1.86% Core NIM, down 4 bps on 1H23 WESTPAC THIRD QUARTER 2023 UPDATE The Group deli

Exhibit 1 ASX Release 21 August 2023 WESTPAC 3Q23 UPDATE Following is Westpac’s 3Q23 update, for the three months ended 30 June 2023.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 August 21, 2023 Commission File Number 1-10167 WESTPAC BANKING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 August 21, 2023 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

JUNE 2023 INCORPORATING THE REQUIREMENTS OF APS330 WESTPAC BANKING CORPORATION ABN 33 007 457 141 Pillar 3 Report Pillar 3 report Table of contents 2 | Westpac Group June 2023 Pillar 3 report Structure of Pillar 3 report Executive summary 3 Introduct

Exhibit 1 JUNE 2023 INCORPORATING THE REQUIREMENTS OF APS330 WESTPAC BANKING CORPORATION ABN 33 007 457 141 Pillar 3 Report Pillar 3 report Table of contents 2 | Westpac Group June 2023 Pillar 3 report Structure of Pillar 3 report Executive summary 3 Introduction 5 Group structure 6 Capital overview 8 Leverage ratio 12 Credit risk exposures 13 Securitisation 17 Liquidity coverage ratio 20 Appendices Appendix I – APRA revised capital framework 21 Appendix II – APS 330 quantitative requirements 23 Disclosure regarding forward-looking statements 24 In this report references to ‘Westpac’, ‘Westpac Group’, ‘the Group’, ‘we’, ‘us’ and ‘our’ are to Westpac Banking Corporation and its controlled entities (unless the context indicates otherwise).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 August 21, 2023 Commission File Number 1-10167 WESTPAC BANKING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 August 21, 2023 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

ASX Release 21 August 2023 WESTPAC 3Q23 CAPITAL, FUNDING AND ASSET QUALITY UPDATE Following is Westpac’s 3Q23 slides covering capital, funding and asset quality, for the three months ended 30 June 2023. For further information: Hayden Cooper Justin M

Exhibit 2 ASX Release 21 August 2023 WESTPAC 3Q23 CAPITAL, FUNDING AND ASSET QUALITY UPDATE Following is Westpac’s 3Q23 slides covering capital, funding and asset quality, for the three months ended 30 June 2023.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 July 19, 2023 Commission File Number 1-10167 WESTPAC BANKING C

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 July 19, 2023 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

ASX Release 19 July 2023 WESTPAC ANNOUNCES NEW STRUCTURE TO DRIVE GROWTH Westpac CEO Peter King today announced a restructure to support the Group’s next strategic phase. The changes follow a period of simplification for the bank and will position th

Exhibit 1 ASX Release 19 July 2023 WESTPAC ANNOUNCES NEW STRUCTURE TO DRIVE GROWTH Westpac CEO Peter King today announced a restructure to support the Group’s next strategic phase.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 July 17, 2023 Commission File Number 1-10167 WESTPAC BANKING C

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 July 17, 2023 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Exhibit 1 ASX Release 17 July 2023 MICHAEL HAWKER TO LEAVE WESTPAC BOARD Westpac Banking Corporation (Westpac) has today announced that Michael (Mike) Hawker AM has decided to step down from the Board as an independent Non-executive Director, effecti

Exhibit 1 ASX Release 17 July 2023 MICHAEL HAWKER TO LEAVE WESTPAC BOARD Westpac Banking Corporation (Westpac) has today announced that Michael (Mike) Hawker AM has decided to step down from the Board as an independent Non-executive Director, effective from 15 July 2023.

ASX Release 21 June 2023 UPDATE ON WESTPAC’S SALE OF BT PLATFORMS Westpac has today provided an update on BT Platforms1. Westpac has concluded a competitive sales process for BT Platforms. Westpac will retain and continue to invest in the business, i

Exhibit 1 ASX Release 21 June 2023 UPDATE ON WESTPAC’S SALE OF BT PLATFORMS Westpac has today provided an update on BT Platforms1.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 June 21, 2023 Commission File Number 1-10167 WESTPAC BANKING C

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 June 21, 2023 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

$4,001m Net profit, up 22% on 1H22

Exhibit 1 2023 Interim Financial Results THE INTERIM FINANCIAL RESULTS ANNOUNCEMENT HAS BEEN PREPARED FOR DISTRIBUTION IN THE UNITED STATES OF AMERICA Westpac Banking Corporation ABN 33 007 457 141 ii WESTPAC GROUP 2023 INTERIM FINANCIAL RESULTS Results Announcement to the market Introduction Our interim period refers to the six months ended 31 March 2023 (First Half 2023).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 9, 2023 Commission File Number 1-10167 WESTPAC BANKING COR

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 9, 2023 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 8, 2023 Commission File Number 1-10167 WESTPAC BANKING COR

6-K 1 tm2314971d26k.htm FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 8, 2023 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Ad

EX-2

Exhibit 2 Notification of dividend / distribution Notification of dividend / distribution 1 / 7 Announcement Summary Entity name WESTPAC BANKING CORPORATION Security on which the Distribution will be paid WBC - ORDINARY FULLY PAID Announcement Type New announcement Date of this announcement 8/5/2023 Distribution Amount AUD 0.

EX-1

Exhibit 1 ASX Release 8 May 2023 Westpac 1H23 Presentation and Investor Discussion Pack Westpac Banking Corporation (“Westpac”) today provides the attached Westpac 1H23 Presentation and Investor Discussion Pack.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 8, 2023 Commission File Number 1-10167 WESTPAC BANKING COR

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 8, 2023 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

ASX Release 8 May 2023 Westpac releases latest Independent Reviewer reports on CORE program Westpac has today released the eighth and ninth Independent Reviewer reports for the quarters ended in December 2022 and March 2023, updating progress of its

Exhibit 1 ASX Release 8 May 2023 Westpac 1H23 CORE program update – media release Westpac Banking Corporation (“Westpac”) today provides the attached Media Release – Westpac 1H23 CORE program update.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 8, 2023 Commission File Number 1-10167 WESTPAC BANKING COR

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 8, 2023 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

ASX Release 8 May 2023 Pillar 3 Report as at 31 March 2023 Westpac Banking Corporation (“Westpac”) today provides the attached Pillar 3 Report (March 2023). For further information: Hayden Cooper Justin McCarthy Group Head of Media Relations General

Exhibit 1 ASX Release 8 May 2023 Pillar 3 Report as at 31 March 2023 Westpac Banking Corporation (“Westpac”) today provides the attached Pillar 3 Report (March 2023).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 8, 2023 Commission File Number 1-10167 WESTPAC BANKING COR

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 8, 2023 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

This page has been intentionally left blank. Incorporating the requirements of Appendix 4D. Westpac Banking Corporation ABN 33 007 457 141. 2023 INTERIM FINANCIAL RESULTS For the six months ended 31 March 2023. ii WESTPAC GROUP 2023 INTERIM FINANCIAL

Exhibit 1 ASX Release 8 May 2023 Westpac 2023 Interim Financial Results Announcement (incorporating requirements of Appendix 4D) Westpac Banking Corporation (“Westpac”) today provides the attached Westpac 2023 Interim Financial Results Announcement (incorporating requirements of Appendix 4D).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 April 3, 2023 Commission File Number 1-10167 WESTPAC BANKING C

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 April 3, 2023 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

ASX Release 3 April 2023Level 18, 275 Kent Street Sydney, NSW, 2000WESTPAC COMPLETES THE MERGER OF BT SUPER AND SALE OF ADVANCE TO MERCERWestpac has completed the previously announced merger of BT’s personal and corporate superannuation funds with Me

Exhibit 1 ASX Release 3 April 2023Level 18, 275 Kent Street Sydney, NSW, 2000WESTPAC COMPLETES THE MERGER OF BT SUPER AND SALE OF ADVANCE TO MERCERWestpac has completed the previously announced merger of BT’s personal and corporate superannuation funds with Mercer Super Trust and the sale of its Advance Asset Management (Advance) business to Mercer Australia.

Banking. Before that, he was a Partner at accounting firms KPMG (1982 to 1992) and Coopers & Lybrand (1992 to 1997). For further information: Hayden Cooper Justin McCarthy Group Head of Media Relations General Manager, Investor Relations 0402 393 619

Exhibit 1 ASX Release 28 February 2023 Appointment of Non-executive Directors to Westpac Board Westpac Banking Corporation (Westpac) has today announced the appointment of Tim Burroughs and Michael Ullmer AO as independent Non-executive Directors, subject to regulatory approval.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 February 28, 2023 Commission File Number 1-10167 WESTPAC BANKI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 February 28, 2023 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 February 17, 2023 Commission File Number 1-10167 WESTPAC BANKI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 February 17, 2023 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 February 17, 2023 Commission File Number 1-10167 WESTPAC BANKI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 February 17, 2023 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant’s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

DECEMBER 2022 INCORPORATING THE REQUIREMENTS OF APS330 WESTPAC BANKING CORPORATION ABN 33 007 457 141 Pillar 3 Report Pillar 3 report Table of contents 2 | Westpac Group December 2022 Pillar 3 Report Structure of Pillar 3 report Executive summary 3 I

Exhibit 1 ASX Release 17 February 2023 Pillar 3 Report as at 31 December 2022 Westpac Banking Corporation (“Westpac”) today provides the attached Pillar 3 Report (December 2022).

ASX Release 17 February 2023 WESTPAC 1Q23 CAPITAL, CREDIT QUALITY AND FUNDING UPDATE Following is Westpac’s 1Q23 slides covering capital, credit quality and funding for the three months ended December 2022. For further information: Hayden Cooper Just

EX-1 2 tm234486d2ex1.htm EXHIBIT 1 Exhibit 1 ASX Release 17 February 2023 WESTPAC 1Q23 CAPITAL, CREDIT QUALITY AND FUNDING UPDATE Following is Westpac’s 1Q23 slides covering capital, credit quality and funding for the three months ended December 2022. For further information: Hayden Cooper Justin McCarthy Group Head of Media Relations General Manager, Investor Relations 0402 393 619 0422 800 321 T

WEBNF / Westpac Banking Corp. Ltd. / VANGUARD GROUP INC - SCHEDULE 13G Passive Investment

SC 13G 1 tv02247-westpacbankingcorp.htm SCHEDULE 13G SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 Name of issuer: Westpac Banking Corp. Title of Class of Securities: Common Stock CUSIP Number: 006076146 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box to designate the rule pursuant

ASX Release – 2022 Annual General Meeting – Chairman’s AGM Address and Intention to Retire at 2023 AGM

Exhibit 1 ASX Release 14 December 2022 2022 Annual General Meeting – Chairman’s AGM Address and Intention to Retire at 2023 AGM In accordance with ASX Listing Rule 3.

ASX Release – Results of 2022 Annual General Meeting

Exhibit 1 ASX Release 14 December 2022 Results of 2022 Annual General Meeting In accordance with ASX Listing Rule 3.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 December 14, 2022 Commission File Number 1-10167 WESTPAC BANKI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 December 14, 2022 Commission File Number 1-10167 WESTPAC BANKING CORPORATION (Translation of registrant?s name into English) 275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA (Address of principal executive office) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.