Investor Presentaiton

Capital ratios maintained 10.0% Integration - Tier 1 Capital International Peer Comparison 12.0% Tier 1 Capital Ratios 11.0% 9.0% 1.3% 0.3% 8.8% 10.1% 10.1% 0.9% 10.0% 8.2% 0.6% 8.0% 7.0% 7.6% 9.0% 0.1% 7.6% 8.0% 7.6% 7.0% 8.7% 6.0% 6.0% Tier 1 Jun 08 $16,791m IRRBB RWA increase Tier 1 Capital Jun 08 raising (incl IRRBB) $2,000m $16,791m Residual 1 capacity $667m Tier 1 post raising $19,458m RWA 2 Net gain 3 Tier 1 increase on acquisition pro-forma from $270m post acquisition BankWest $19,728m CBA (APRA) incl IRRBB CBA (UK FSA) 1 CBA (UKFSA) 2 pro-forma post acquisition European Bank average 1. Transfer from Tier 2 capital of excess hybrid capacity due to equity raising. 2. Estimated risked weighted assets under Basel I, capital impact of moving to Basel II expected to be immaterial. 3. Discount on acquisition net of integration costs. 1. Normalised CBA capital calculation to UK, Financial Services Authority, as benchmark. 2. Pro-forma June 2008 Tier 1 (UK FSA) post acquisition. 25 Determined to be different

View entire presentation