Investor Presentaiton

• • Canadian Bail-in Regime Canadian bail-in regime effective since September 23, 2018 (implementation date) Bail-in eligible senior unsecured debt that is issued after the implementation date will be subject to conversion in a resolution scenario - Bail-in eligible debt includes senior unsecured debt issued by the parent bank with an original term >400 days and marketable (with a CUSIP/ISIN) Key exclusions are Covered bonds, structured notes, derivatives and consumer deposits Bail-in eligible debt will be issued under existing programs (US MTN, EMTN, AMÒN etc.) governed by local laws, with the exception of bail-in conversion requirements which will be governed by Canadian law Bail-in eligible debt has a statutory conversion feature that provides the Canada Deposit Insurance Corporation (CDIC) the power to trigger conversion of bail-in securities into common shares of the bank (no write-down provision) The statutory conversion supplements the existing Non-Viable Contingent Capital (NVCC) regime which contractually requires the conversion of subordinated debt and preferred equity into common equity upon the occurrence of certain trigger events The notional amount of bail-in securities to be converted and the corresponding number of common shares issued in a resolution scenario will be determined by CDIC at the time of conversion (unlike NVCC securities, where the calculation for the number of shares issued is already defined). Any outstanding NVCC capital must be converted, in full, prior to conversion of bail-in securities Conversion maintains the creditor hierarchy (no creditor worse off principle is respected) 1 Pari passu ranking in liquidation. Canadian Approach Statutory Contractual Subordination CDIC Insured Deposits Other unsecured liabilities¹ Structured Notes¹ Other Deposits (including legacy senior debt)1 Sr. Debt (bail-inable)1 Tier 2 Additional Non-Common Tier 1 Common Equity Tier 1 BMO Financial Group Investor Presentation October 2021 46

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