Company: WEBNF
Filing Date: 2025-06-26
Form Type: 424B5
Source: 0001104659-25-062718
Chunk: 7

Company: WESTPAC BANKING CORP
Filing Date: 2025-06-26
Form: 424B5
Chunk 7
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 or any of their contents.

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TABLE OF CONTENTS

### PRESENTATION OF INFORMATION
This document is in two parts. The first part is this prospectus supplement, which describes the specific terms of the offering of the notes and also adds to and updates information contained in the accompanying prospectus and the documents incorporated by reference in this prospectus supplement and the accompanying prospectus. The second part is the accompanying prospectus which gives more general information about our Senior Debt Securities, some of which may not apply to this offering.

If the information in this prospectus supplement is inconsistent with information contained in the accompanying prospectus or any document incorporated by reference in this prospectus supplement or the accompanying prospectus on or prior to the date hereof, you should rely on the information contained in this prospectus supplement.

Unless otherwise indicated, or the context otherwise requires, references in this prospectus supplement to the “Group,” “we,” “us” and “our” or similar terms are to Westpac Banking Corporation and its controlled entities (within the meaning of Section 50AA of the Corporations Act 2001 of Australia, which we refer to as the Australian Corporations Act), and references to “Westpac” are to Westpac Banking Corporation (ABN 33 007 457 141).

We publish our consolidated financial statements in Australian dollars. In this prospectus supplement, unless otherwise stated or the context otherwise requires, references to “dollars”, “$”, or “A$” are to Australian dollars and references to “US$”, “USD” or “U.S. dollars” are to United States dollars.

Certain amounts that appear in this prospectus supplement may not sum due to rounding.

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TABLE OF CONTENTS

### FORWARD-LOOKING STATEMENTS
This prospectus supplement contains or incorporates by reference statements that constitute “forward-looking” statements within the meaning of Section 27A of the Securities Act of 1933, as amended, which we refer to as the Securities Act.

Forward-looking statements are statements that are not historical facts. Forward-looking statements appear in a number of places in this prospectus supplement and the accompanying prospectus and the information incorporated by reference herein and therein and include statements regarding our current intent, belief or expectations with respect to our business and operations, macro and micro economic and market conditions, results of operations and financial condition and performance, capital adequacy and liquidity and risk management, including, without limitation,