FREE CALCULATOR 2026
Mortgage Calculator
Estimate your monthly payment, total interest and the true cost of your mortgage in 5 seconds. 100% free tool, designed for Quebec.
Calculate my payment Protect my mortgageThe Assur360 mortgage calculator allows you to quickly estimate the periodic payment of a mortgage loan based on the amount borrowed, the interest rate and the amortization period. Designed for Quebec residents, it helps you plan the purchase of your property and choose the right mortgage life insurance coverage for your loan.
Calculate my mortgage payment
YOUR ESTIMATE
💡 Did you know? Mortgage life insurance pays off your loan in the event of your death. Save up to 50% by going through a broker from our partner firms instead of your lender.
Broker’s advice
Before you sign your mortgage, compare individual life insurance to your lender. Independent life insurance is often 30-50% cheaper, owned by you (transferable if you switch banks), and coverage remains fixed instead of decreasing with the balance of the loan.
How does the mortgage payment calculation work?
The periodic payment of a mortgage is calculated according to a standard mathematical formula that spreads the principal and interest over the entire amortization period. Here are the key things to understand.
STANDARD FORMULA
M = P × r(1 + r)n ⁄ (1 + r)n − 1
where M = periodic payment, P = borrowed capital, r = periodic rate, n = total number of payments
Interest rates
The higher the rate, the higher the payment. A 0.5% change over 25 years can add up to more than $25,000 in interest.
Payback period
A longer period (30 years) reduces the monthly payment but greatly increases the total cost of interest paid.
Down payment
A down payment of 20% or more avoids CMHC loan insurance and reduces your monthly payment.
Examples of payments by scenario
| Loan Rate | Term | Payment / month | Total interest | |
|---|---|---|---|---|
| $200,0005.25 | % | 25 years | $1,192 | $157,581 |
| $300,0005.25 | % | 25 years | $1,788 | $236,372 |
| $400,0005.25 | % | 25 years | $2,384 | $315,162 |
| $500,0005.25 | % | 25 years | $2,980 | $393,953 |
| $300,0005.25 | % | 15 years | $2,410 | $133,758 |
| $300,0005.25 | % | 30 years | $1,656 | $296,235 |
*Indicative estimates based on a fixed rate of 5.25% and the calculator above. The actual rate offered depends on your file and lender.
5 steps to using the calculator properly
Estimate the price of the property
Indicate the total amount of your purchase (before transfer taxes, notary fees and inspection).
Enter your down payment
In Quebec, the minimum is 5% on the first $500,000 and 10% on the portion between $500,001 and $1 million.
Choose a realistic interest rate
Look at the Bank of Canada’s posted rates and add the banks’ usual margin (1.5 to 2 per cent).
Select the amortization period
25 years is the norm. 30 years is possible with a down payment of 20% or more, but costs more in interest.
Compare payment frequencies
An accelerated bi-weekly payment can save 3 to 5 years of amortization and tens of thousands in interest.
PROTECT YOUR LOAN
Your mortgage deserves the right insurance
Compare the prices of 15+ life insurers in Quebec in 3 minutes. A broker from our partner firms Assur360 will assist you free of charge.
Free quote in 3 min 📞 1-866-357-4451Complementary coverage to your mortgage
A mortgage commits your family for 25 years. Three types of insurance coverage help secure your investment and that of your loved ones.
🛡️ Mortgage Life Insurance
Pays off the balance of your loan if you die. Individual life insurance is usually more advantageous than the one offered by your lender.
Get a → Quote🏠 Home insurance
Mandatory to obtain a mortgage loan in Quebec. It protects your building, your belongings and your civil liability.
Get a → Quote⚕️ Disability & Critical Illness Insurance
Guarantees your mortgage payment if illness or accident prevents you from working. Often overlooked, but essential.
Available throughout Quebec
Assur360 brokers support home buyers in Montreal, Quebec City, Laval, Sherbrooke, Gatineau, Trois-Rivières, Saguenay, Lévis, Drummondville and Thetford Mines. Whether you are buying in an urban or rural area, the brokers of our AMF-certified partner firms will find the mortgage life insurance best suited to your profile.
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Frequently asked questions
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