HY23 Interim Results Announcement

FY23 Outlook Impairment charge of €158m in line with expectations • IFRS 9 models and management adjustments (PMAs) (€28m) charge Charge of (€53m) related to model updates and updated IFRS 9 macroeconomic assumptions PMA gain of €25m (Jun 2023 stock of €35m) in relation to NPES earmarked for disposal Loan loss experience and portfolio activity (€130m) charge Charge of (€97m) from portfolio activity, reflecting net losses on case specific credit events . Day 1 charge of (€17m) related to KBCI portfolio acquisition HY 2023 Bank of Ireland Additional assessment on affordability² of residential mortgage and consumer loan portfolios, reflecting higher interest rates (€16m net charge) Prudent approach applied in setting macroeconomic assumptions¹ Ireland United Kingdom 30 June 2023 2023 2024 2023 2024 Probability Weighted Scenarios GDP growth 4.8% 3.6% -0.4% 0.1% Probability weighted scenarios used for provisioning apply more conservative assumptions vs central scenario (consensus of external forecasts) Unemployment 4.6% 5.3% 4.5% 5.2% Inflation 5.3% 3.2% 7.3% 3.1% House Price Index -6.5% -2.4% -9.6% -5.4% Weightings to downside scenarios increased by 5% to 45% vs Dec 2022 Commercial Real Estate prices -11.1% -8.0% -8.8% -7.1% FY23 impairment charge expected to be mid-30s bps, subject to no material change in economic conditions or outlook 1 See slide 38 for 2023-2027 macro-economic assumptions used in IFRS 9 models 2 SICR (Significant Increase in Credit Risk) assessment under IFRS 9. Total stock of SICR assessments included in ILA of residential mortgage and consumer portfolios of €28m 20

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