Company: WEBNF
Filing Date: 2025-06-26
Form Type: 424B5
Source: 0001104659-25-062718
Chunk: 99

Company: WESTPAC BANKING CORP
Filing Date: 2025-06-26
Form: 424B5
Chunk 99
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.S. Holder of a Senior Debt Security will have a tax basis in such Senior Debt Security equal to the cost of such Senior Debt Security to such U.S. Holder, increased by any amount includible in income by such U.S. Holder as OID and reduced by any amortized premium and any payments received with respect to the Senior Debt Security other than payments of qualified stated interest. Upon a sale, exchange, redemption or other disposition of a Senior Debt Security, a U.S. Holder will generally recognize gain or loss equal to the difference between the amount realized on the sale, exchange, redemption or other disposition (less any amount that is attributable to accrued but unpaid qualified stated interest, which will constitute ordinary interest income if not previously included in income) and such U.S. Holder’s adjusted tax basis in such Senior Debt Security. Subject to the rules described below under “—Foreign Currency Senior Debt Securities”, such gain or loss generally will be capital gain or loss and will be long-term capital gain or loss if such U.S. Holder has held such Senior Debt Security for more than one year at the time of such sale, exchange, redemption or other disposition. Certain non-corporate U.S. Holders are entitled to preferential treatment for net long-term capital gains. The ability of a U.S. Holder to offset capital losses against ordinary income is limited. Such gain or loss generally will be from sources within the United States.

#### Foreign Currency Senior Debt Securities
The following discussion generally describes special rules that apply, in addition to the rules described above, to Senior Debt Securities that are denominated in, or provide for payments determined by reference

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to, non-U.S. currency (“Foreign Currency Senior Debt Securities”). The amount of qualified stated interest paid with respect to a Foreign Currency Senior Debt Security that is includible in income by a U.S. Holder that uses the cash method of accounting for U.S. federal income tax purposes is the U.S. dollar value of the amount paid, as determined on the date of actual or constructive receipt by such U.S. Holder, using the spot rate of exchange on such date. In the case of qualified stated interest on a Foreign Currency Senior Debt Security held by a U.S. Holder that uses the accrual method of accounting, and in the case of OID (other than OID on a Short-Term Senior Debt Security that is not required to be accrued) for every U.S. Holder, such U.S. Holder is required to include the