Investor Presentaiton

Meaningful buffer to potential MDA' restrictions Regulatory CET1 ratio vs. MDA Threshold Bank of Ireland 2021 Interim Results - Debt Investor Presentation 15.3% Jun 21 Regulatory CET1 ratio 5.5% Current MDA Buffer 1.5% 2.5% • 1.27% 4.5% Dec 21 Regulatory CET1 ratio requirement Pillar 1 Pillar 2 Requirement ■ ССВ ■O-SII Regulatory CET1 ratio of 15.3% at Jun 2021 - Continued phase-in of existing transitional adjustments expected to consume c.20-40bps per annum to 2025 End 2021 CET1 ratios expected to increase by c.30bps 50bps above Jun 2021 levels O-SII buffer increased to 1.5% in Jul 2021 Jun 2021 Regulatory CET1 ratio of 15.3% provides a buffer of c.5.5% to MDA threshold MREL-MDA in effect from Jan 2022 45 25 1 The Maximum Distributable Amount is determined as a percentage of attributable profits earned in the period to which the buffer breach and MDA calculation pertains, and will vary depending on the extent of the breach of the CBR which is measured in quartiles (bottom quartile - 0%, second quartile - 20%, third quartile - 40% and top quartile - 60% of profits) Bank of Ireland

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