BMO Bank of Montreal's prime rate is 4.45% in 2026. Like every major Canadian lender, BMO Bank of Montreal sets its prime off the Bank of Canada's policy rate (currently 2.25%) — so your variable mortgage and HELOC move with it. Compare all lenders on the prime rate by bank page.
BMO Bank of Montreal's prime rate is 4.45% in 2026. Like every major Canadian lender, BMO Bank of Montreal sets prime at the Bank of Canada's overnight rate (2.25%) plus about 2.2 points, so it moves within days of each rate decision and prices your variable mortgage and HELOC.
BMO Bank of Montreal, like the other big Canadian banks, sets its prime rate at roughly the Bank of Canada's overnight rate plus about 2.2 percentage points. With the policy rate at 2.25%, that puts prime at 4.45%. When the Bank cuts or hikes by 0.25%, BMO Bank of Montreal almost always matches within a few days.
A variable-rate mortgage or HELOC with BMO Bank of Montreal is quoted as prime minus a discount (e.g. prime − 0.90%). The discount is locked for your term, but the prime part floats — so a Bank of Canada move changes your payment or how fast you pay down principal. Track the live rate and the next decision.
4.45% in 2026.
At roughly the Bank of Canada overnight rate (2.25%) plus ~2.2 points, so it moves with the Bank's decisions.