BMO Bank of Montreal mortgage calculator.
Estimate your BMO Bank of Montreal mortgage payment by price, down payment, rate and amortization — with real Canadian semi-annual compounding. Then see how the broker-channel rate we access (typically 15-30 bps below BMO Bank of Montreal's posted) changes the monthly number.
Your inputs
Per month, versus BMO’s posted rate — about $11,860/year.
Lender-ready summary, your assumptions baked in, and a personalized note from an advisor at Mortgage Squad Advisors.
How to read your BMO Bank of Montreal mortgage payment
Your mortgage payment is driven by three numbers: the mortgage amount (purchase price minus down payment, plus the CMHC premium if you’re under 20% down), the interest rate, and the amortization. BMO Bank of Montreal, like every Canadian lender, uses semi-annual compounding rather than the monthly compounding US calculators assume, so the effective annual cost is slightly below the stated rate — this calculator uses the exact Canadian convention so your number matches what BMO Bank of Montreal quotes.
The two BMO Bank of Montreal rate sheets
BMO Bank of Montreal runs a posted/branch rate quoted to walk-in customers and a wholesale broker-channel rateavailable only through a licensed brokerage — usually 15-30 bps lower because the broker does the origination work BMO Bank of Montreal would otherwise pay branch staff to do. You can’t access the broker rate by walking into a BMO Bank of Montreal branch. The calculator shows your payment at both the broker-channel rate and BMO Bank of Montreal’s posted rate (~6.79%) so the gap is concrete rather than abstract.
A worked example: a $750,000 home with 20% down
Take a $750,000 purchase with $150,000 down — a $600,000 mortgage, no CMHC premium because you’re at 20% down. At a broker-channel rate near today’s 5-year fixed over a 25-year amortization, the payment lands a little over $3,300 a month. Run the same $600,000 at BMO Bank of Montreal’s posted ~6.79% and the payment jumps by roughly $700 a month — about $8,000 a year, and tens of thousands over a five-year term. That difference is the entire reason to access the broker channel rather than signing the first rate a branch quotes. Adjust the sliders above to your own price and down payment to see your version of the same gap.
What actually sets the rate you qualify for
The posted-versus-broker gap is only the start. The rate BMO Bank of Montreal (or any lender) actually offers you depends on your credit score, your down payment / loan-to-value, whether the mortgage is insured, and the property type — an insured under-20%-down file with strong credit usually prices sharpest. That’s why we put your file in front of BMO Bank of Montreal’s broker desk and 50+ other lenders on one application: you getBMO Bank of Montreal’s best and the market’s best, then choose. See today’s BMO Bank of Montreal rates, test what you can afford with the affordability calculator, and if you already have a BMO Bank of Montreal mortgage, check the cost to break it in the BMO penalty calculator.