Investor Presentaiton

102 2H21 430 New Zealand 2H22 performance.1 Change Cash earnings (NZ$m) Key financial metrics 2H21 1H22 2H22 on 1H22 Loss of income following the sale of NZ life insurance Increased regulatory, risk and compliance expenses, and higher technology resilience costs Revenue (NZ$m) 1,218 1,389 1,320 (5%) Net interest margin (%) 1.94 1.98 2.03 5bps AIEA up 4%, NIM up 8 bps from higher deposit spreads Increase in impairment benefit due to improved credit metrics Expense to income (%) 48.9 40.6 45.0 Large Customer deposit to loan ratio (%) 82.0 83.4 80.5 (292bps) 635 (131) 90 (16) (30) Stressed exposures to TCE (%) 1.19 1.14 0.97 (17bps) 7 (18) 537 (7) 530 504 Up $33m or 7% Down $105m or 17% 1H22 Add back notable items 1H22 ex-notable items Net interest income Non-interest income Operating expenses Impairment charges Tax and NCI 1 In NZ$ unless otherwise noted. 2 Refer to page 136 for details of metric definition and provider. Westpac Group 2022 Full Year Results Presentation & Investor Discussion Pack 2H22 ex-notables Notable items 2H22 Key operating metrics Customers (#m) Sep-21 Mar-22 Sep-22 Change Mar-22 1.33 1.35 1.37 1% Branches (#) 116 114 115 +1 ATMs (#) 464 446 439 (7) Consumer NPS2 +14 +10 +7 (3) Business NPS2 (14) (6) +1 +7 Agri NPS2 +13 +33 +20 (13) Funds (NZ$bn) (spot) 12.0 11.7 10.9 (7%) Westpac GROUP New Zealand

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