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Interest Rate Sensitivity NET INTEREST INCOME SENSITIVITY Impact of an immediate and sustained 100 bps parallel shift on net interest income (NII) over a 12-month period +100 bps: $28 million decrease in NII -100 bps: $4 million increase in NII Above estimates assume a static balance sheet and no management actions¹ Q/Q: Maintained stable sensitivity to protect from rates remaining higher for longer Rate Change by BNS Fiscal Quarters (bps) POLICY RATE CHANGE AND OUTLOOK Policy rate on US Peru 0.25% +300 +125 Mexico 4.75% +450 +125 +75 Colombia 2.50% +850 +175 +50 1.50% +550 +75 +50 +50 • NII benefit if market implied forward rates are realized Chile 2.75% +850 -100 Forecast Policy Rate² -Current- Oct FY YTD Policy Dec Mar Jun Sep Country 31/21 2022 Q1/23 Q2/23 Q3/23 Q4/23 Rate 30/23 29/24 28/24 30/24 Canada 0.25% +350 +75 +50 5.00% 5.00% 5.00% 4.75% 4.25% 5.50% 5.50% 5.50% 5.25% 4.75% 11.25% 11.00% 10.00% 9.25% 8.75% 13.25% 12.25% 10.25% 8.25% 6.75% 7.75% 7.00% 6.50% 6.00% 5.50% 10.25% 7.50% 6.00% 4.00% 4.00% N WA UO HISTORICAL INTEREST RATE ENVIRONMENT AND OUTLOOK 3 Canada & US (%) 13.0 11.0 9.0 7.0 Mexico & Chile (%) 2.0 5.0 1.0 0.0 3.0 Jul-22 Jan-23 Jul-23 BoC Overnight Rate Fed Funds Rate Jan-24 CAD 5-Yr Swap Rate - USD 5-Yr Swap Rate Jul-24 Jul-22 Jan-23 Bank of Mexico Overnight Rate Bank of Chile Monetary Policy Rate Jul-23 Jan-24 MXN 5-Yr Swap Rate CLP 5-Yr Swap Rate Jul-24 1 Additional detail regarding non-trading interest rate sensitivity can be found on page 38 of the Management's Discussion & Analysis in the Bank's Third Quarter 2023 Report to Shareholders, available on http://www.sedarplus.ca 2 Source: Scotia Economics. US and Canada forecast as at July 20, 2023, Pacific Alliance countries forecast as at August 11, 2023 3 As at August 18, 2023 61

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