BMO Bank of Montreal mortgage calculator.
Estimate your monthly payment using Canadian semi-annual compounding, then compare your quoted rate with an illustrative alternative. Mortgage Squad Advisors is an independent brokerage and is not affiliated with, endorsed by or sponsored by BMO Bank of Montreal. BMO Bank of Montreal marks are trademarks of Bank of Montreal. Estimates only; your bank’s written payout statement or commitment is final. Rates are illustrative scenarios as of October 2026, not verified bank rates; check the bank’s site or enter your written quote.
Fact-checked by Surrayya Afzal, Principal Broker, FSRA #M14001433· Last reviewed October 2026 · Reviewed monthly
The payment depends on the amount borrowed, the interest rate and amortization. Under 20% down, eligible purchases need mortgage default insurance. Banks often discount posted rates; a posted rate is not the same as a discounted branch quote. The defaults compare hypothetical rates, not an offer from BMO Bank of Montreal.
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Per month, versus BMO’s posted rate — about $11,078/year.
Mortgage Squad Advisors · FSRA #13737 · Licensed in Ontario only.
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Compare a written bank offer with the market
Banks rarely charge their posted rate. Most borrowers receive a discount. Compare your actual branch or specialist offer with available brokerage offers, including fees, privileges and penalties; a comparison with a posted rate alone shows the widest possible gap.
A worked example: $750,000 with 20% down
A $600,000 mortgage at an illustrative 4.14% over 25 years costs $3,202 monthly. At the illustrative comparison rate of 6.79%, it costs $4,125, a difference of $923 monthly or $11,078 annually. These are hypothetical rates, not verified current BMO Bank of Montreal pricing.
BMO generally permits 20% annual lump sums and 20% payment increases; Smart Fixed permits 10% and 10%. Check your own mortgage terms.
Mortgage Squad Advisors is an independent brokerage and is not affiliated with, endorsed by or sponsored by BMO Bank of Montreal. BMO Bank of Montreal marks are trademarks of Bank of Montreal. Estimates only; your bank’s written payout statement or commitment is final. Rates are illustrative scenarios as of October 2026, not verified bank rates; check the bank’s site or enter your written quote.
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