Investor Presentaiton

Risk weighted assets. Decrease from lower credit risk RWA. Risk weighted assets ($bn) 443.9 437.9 (12.3) 0.7 2.9 0.0 (0.3) 428.9 Down $9.0bn or 2.1% Capital, Funding and Liquidity Commentary RWA decreased $9.0bn over 1H21, mostly from lower credit RWA (CRWA), partly offset by non-credit risk CRWA reduced $12.3bn due to: Lower corporate and business lending, partly offset by mortgage lending growth Improved asset quality metrics across corporate and small business portfolios, including $1.6 billion reduction in the RWA overlay for corporate, business and specialised lending Lower counterparty credit and mark-to-market risk RWA floor on mortgages to 23.8% increased CRWA $3.7bn - Mar-20 Sep-20 Credit risk Market IRRBB Operational Other risk Mar-21 risk Movement in credit risk weighted assets ($bn) 369.1 359.4 (4.4) (1.6) (1.6) (1.0) (1.4) (2.3) 347.1 Down $12.3bn or 3.4% Mar-20 Sep-20 Credit metrics Lower lending COVID-19 overlay Methodology changes FX translation impacts Counterparty credit Mar-21 and mark-to- market risk 79 Westpac Group 2021 Interim Results Presentation & Investor Discussion Pack Westpac GROUP

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