Investor Presentaiton

Impairment provisions. Total impairment provisions1 ($m) Overlay Stage 1 CAP Provision coverage Stage 2 CAP ■Stage 3 CAP Provisions to Credit RWA Sep-19 Sep-20 Mar-21 109bps 171bps 159bps ■Individually assessed provisions (Stage 3) Provisions to TCE 37bps 58bps 51bps 6,159 5,788 708 IAP2 to Impaired assets 44.9% 41.5% 47.0% 5,508 795 958 1,032 Forecasts used in base case economic scenario ³ 1,019 3,922 853 171 At Sept 2020 At Mar 2021 818 2,247 2021 2022 2021 2022 2,317 1,806 GDP growth 2.5% 2.7% 4.0% 3.0% 1,578 Unemployment 7.5% 6.7% 6.0% 5.3% 1,561 1,327 1,051 943 412 606 Mar-20 611 Sep-20 564 Residential property price increase/(decrease) (0.4%) 7.5% 10% 10% Mar-21 Sep-19 1 CAP is Collectively Assessed Provision. 2 IAP is Individually Assessed Provision. 3 GDP and Residential property price growth is annual growth to December each year. Unemployment rate forecast is as at year end. Forecasts used for March 21 were determined in February 21. 23 Westpac Group 2021 Interim Results Presentation & Investor Discussion Pack Westpac GROUP

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