• CBA's CET1 ratio was 11.8% as at 30 September 2025
• Total RWA increased by $5.3 billion, driven by increases in credit risk and operational risk
• Leverage ratio was 4.5%, above the 3.5% minimum requirement

CBA has released its September quarter 2025 Basel III Pillar 3 report, providing details on the Group's capital adequacy, risk weighted assets (RWA), leverage, and liquidity. As at 30 September 2025, CBA's Basel III Common Equity Tier 1 (CET1), Tier 1 and Total Capital ratios were 11.8%, 13.3% and 20.3% respectively. The Group's CET1 ratio increased 33 basis points in the quarter, primarily driven by capital generated from earnings. Total RWA increased by $5.3 billion to $501.4 billion, with increases in both credit risk RWA and operational risk RWA. The Group's leverage ratio stood at 4.5% as at 30 September 2025, above the 3.5% minimum requirement for IRB banks. CBA's Liquidity Coverage Ratio (LCR) increased from 130% to 133% over the quarter, while the Net Stable Funding Ratio (NSFR) was 116%. The report provides detailed breakdowns of the Group's RWA, credit risk exposures, and other key metrics.

CBA has not provided any high-importance, price-sensitive forward-looking financial metrics in this announcement.