HY23 Interim Results Announcement

EAD³ RWA (€bn) (€bn) 30.9 8.1 Risk Weighted Assets (RWAs) / Leverage ratio Customer lending average credit risk weights - Jun 20231,2 (Based on regulatory exposure class) Ireland Mortgages EBA Transparency Exercise 2022 Country by Country Average IRB risk weights Residential Mortgages - Jun 2022 Sweden Netherlands Belgium France Denmark Avg. Risk Weight 3.9% 9.7% 10.4% 26% 12.4% 14.0% UK Mortgages SME Corporate 16.2 3.6 22% Austria 14.0% 15.7 11.6 74% United Kingdom 14.5% Portugal 15.3% 12.6 11.5 91% Germany 15.5% Other Retail 6.9 5.1 74% Spain 15.8% Finland 16.7% Customer lending credit risk 82.3 39.8 48% Norway 19.9% Italy 20.0% Ireland 31.0% IRB approach accounts for: 54% of credit EAD (Dec 2022: 55%) 66% of credit RWA (Dec 2022: 70%) Regulatory RWA has increased from €47.5bn at Dec 2022 to €52.0bn at Jun 2023. The increase primarily reflects the KBCI portfolio acquisition, new lending and book mix change Leverage Ratio Fully Loaded leverage ratio: 6.5% Regulatory leverage ratio: 6.6% 1 EAD and RWA include both IRB and Standardised approaches and comprise both non-defaulted and defaulted loans 2 Securitised exposures are excluded from the table (i.e. excludes exposures included in CRT transactions) Bank of Ireland EBA Risk Dashboard - Jun 2022 Country by Country Average Regulatory Leverage ratios Sweden 4.7% Denmark 4.9% Germany 4.9% France 4.9% Spain 5.1% Belgium 5.1% Italy 5.4% Netherlands 5.5% Finland 5.6% Portugal 6.2% Norway 6.4% Austria 6.6% Ireland 7.9% 0% 2% 4% 6% 8% 10% 3 Exposure at default (EAD) is a regulatory estimate of credit risk exposure consisting of both on balance exposures and off balance sheet commitments 45

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