Canadian Mortgage Calculator
Estimate your monthly Canadian mortgage payment using the legally required semi-annual rate compounding.
Example
On a $500,000 home with a $100,000 down payment, the mortgage loan is $400,000. At a 5% annual rate over a 25-year amortization, interest compounds semi-annually, giving an equivalent monthly rate of about 0.4124%.
The monthly payment works out to $2,326.42, with roughly $297,925 in total interest over the full amortization (total cost about $697,925).
How it works
Enter the purchase price, down payment, annual interest rate and amortization period. The tool converts the nominal rate to an equivalent monthly rate (semi-annual compounding) and shows your monthly payment, total interest and total cost.
Good to know
The Canadian Mortgage Calculator estimates the monthly payment on a Canadian fixed-rate mortgage using the country's legally mandated semi-annual interest compounding, instead of the monthly compounding used on most US loans. You enter the home price, down payment, annual rate, and amortization in years, and it instantly shows your monthly payment along with the loan amount, total interest, total cost, and the effective annual rate. It is built for Canadian homebuyers, renewers, and refinancers who want a realistic payment figure that matches how their lender actually calculates interest.
Reach for it when you are comparing offers, testing how a rate change or larger down payment shifts your payment, or sanity-checking a mortgage quote before signing. Because Canadian rates are quoted as a nominal annual figure but compounded twice a year, a quick mental estimate often overshoots the true payment; this tool removes that gap by converting the posted rate into an equivalent monthly rate behind the scenes.
To read the result, start with the monthly payment, then look at the "Effective annual rate" stat: it will sit slightly below your nominal rate (for example, 5% nominal works out to roughly 5.06% effective), which is the real cost of borrowing once compounding is applied. The principal-versus-interest bars show how much of your total outlay over the full amortization goes to repaying the loan versus paying the lender, which is useful for seeing how a longer amortization quietly inflates total interest.
One important caveat: this is a base-payment estimate only. It excludes property taxes, home insurance, condo fees, and CMHC (or equivalent) default insurance premiums that apply when your down payment is under 20%. Your true monthly housing cost will be higher, and a real lender payment may differ slightly depending on payment frequency and how they round the equivalent rate.
Frequently asked questions
Why is a Canadian mortgage payment different from a US one at the same rate?
Canadian fixed-rate mortgages are legally required to compound interest semi-annually rather than monthly. This makes the effective annual rate slightly lower than a US-style monthly-compounded loan at the same nominal rate, so the monthly payment is a touch smaller.
Does this calculator include CMHC mortgage insurance?
No. If your down payment is under 20%, CMHC (or equivalent) default insurance premiums apply and are usually added to the loan. This tool calculates the base payment only and excludes CMHC premiums, property taxes, and other fees.
Is my data uploaded anywhere?
No — this calculator runs entirely in your browser; nothing is uploaded.
Is this financial advice?
No. These are educational estimates — consult a qualified financial professional before making decisions.
People also ask
How is the monthly payment calculated on a Canadian mortgage?
The nominal annual rate is first compounded semi-annually to find the effective annual rate, then converted to an equivalent monthly rate. That monthly rate is applied with a standard amortizing-loan formula over the total number of months to produce a fixed monthly payment.
What is a typical amortization period for a mortgage in Canada?
Twenty-five years is the most common amortization in Canada, though periods can range from shorter terms up to 30 or, in some cases, 40 years. A longer amortization lowers the monthly payment but increases the total interest paid over the life of the loan.
Does a bigger down payment lower my monthly mortgage payment?
Yes. A larger down payment reduces the loan amount, which directly lowers the monthly payment and the total interest. Reaching 20% down also removes the requirement for default mortgage insurance, though that premium is not included in this calculator.
What is the difference between the mortgage term and the amortization period?
The amortization is the total length of time to fully repay the loan, often 25 years, while the term is the length of your current rate contract, commonly 5 years. At the end of each term you renew or refinance the remaining balance, usually at a new rate.
Why is the effective annual rate slightly higher than the rate I entered?
The rate you enter is a nominal figure, but compounding it twice a year means interest is charged on interest, producing a marginally higher effective annual rate. For example, a 5% nominal rate corresponds to an effective annual rate of about 5.06%.
Can I use this calculator for a variable-rate mortgage?
It is designed for fixed-rate mortgages, which use semi-annual compounding by law in Canada. A variable-rate payment can change whenever the rate moves, so any figure here reflects only the rate you enter at one moment rather than future fluctuations.
How can I reduce the total interest I pay on my mortgage?
Total interest tends to fall with a larger down payment, a lower interest rate, a shorter amortization, or making prepayments where allowed. The principal-versus-interest split in the results helps illustrate how much of your total cost is interest under your chosen inputs.
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