Mortgage Calculator Canada — Free 2026
Calculate your Canadian mortgage payments with CMHC insurance, semi-annual compounding, and the federal stress test. See your true cost of buying a home in Canada.
How It Works
- Enter home price and down payment
- Set your rate, amortization, and payment frequency
- Review your payment and stress test results
Understanding Canadian Mortgages in 2026
Canada's mortgage market has several features that set it apart from other countries. The most significant is that, by law under the Interest Act, Canadian mortgages must compound interest semi-annually — not monthly as in the US or Australia. This means a quoted rate of 4.5% is not simply divided by 12 to get the monthly rate. Instead, you must convert: effective monthly rate = (1 + 4.5% / 2)^(1/6) − 1 ≈ 0.3715%. This compounding convention results in slightly lower true interest costs compared to a nominally identical US mortgage, because interest is added to the balance less frequently.
Canada's Big Six banks (RBC, TD, Scotiabank, BMO, CIBC, and National Bank) dominate the market, though mortgage brokers now arrange a large share of transactions by sourcing from dozens of lenders. The Bank of Canada (BoC) policy rate — sitting at 2.25% in early 2026 — drives variable-rate mortgages directly. Fixed rates are priced off Government of Canada bond yields. The 5-year fixed mortgage remains the most popular product, reflecting Canadians' preference for payment certainty while still renewing regularly.
CMHC Mortgage Insurance
When a buyer puts down less than 20% of the purchase price, federal rules require the mortgage to be insured through the Canada Mortgage and Housing Corporation (CMHC), Sagen, or Canada Guaranty. The premium is added directly to the mortgage balance — you do not pay it upfront in cash. Premiums range from 2.80% (15–19.99% down) to 4.00% (5–9.99% down) of the total mortgage amount. Insured mortgages are capped at a purchase price of C$1.5 million and carry a maximum 25-year amortization. The insurance protects the lender — not the borrower — against default, but it enables lenders to offer lower interest rates on insured loans than they would otherwise provide at high LTV ratios.
The Federal Mortgage Stress Test
Since 2018, all borrowers from federally regulated lenders must pass the mortgage stress test. Lenders are required to qualify applicants at the higher of: (a) the borrower's contracted mortgage rate plus 2 percentage points, or (b) 5.25%. For a buyer securing a 4.5% rate in 2026, the qualifying rate is 6.5%. This ensures borrowers retain the financial capacity to service their debt if rates rise during their amortization period. The stress test applies to new purchases, renewals at a new lender, and refinances. If you are renewing with your current lender, the stress test may not apply depending on the lender's internal policy.
Payment Frequency and Accelerated Bi-Weekly
Canadian mortgages offer several payment frequency options. The accelerated bi-weekly option is particularly effective for paying down your mortgage faster. Instead of simply dividing the annual total by 26 payment periods, accelerated bi-weekly takes your monthly payment and divides it by two — meaning you effectively make 13 full monthly payments per year instead of 12. Over a 25-year amortization, this can reduce your total amortization by 3–4 years and save tens of thousands in interest. It is one of the simplest and most impactful choices a Canadian mortgage borrower can make.
Mortgage Term vs. Amortization
Amortization is the total period over which the mortgage is repaid — typically 25 years for insured mortgages. The mortgage term is the length of your rate agreement, most commonly 5 years. At the end of each term, the outstanding balance is renewed at the market rate of the day. This renewal risk means that Canadians who took 5-year fixed mortgages in 2020–2021 at rates near 1.5–2.0% faced significantly higher payments at renewal in 2025–2026. For a precise estimate of how interest compounds over your amortization, our compound interest calculator can help model different rate scenarios.
Frequently Asked Questions
Canadian mortgages compound interest semi-annually by law. To find the effective monthly rate, convert: monthly rate = (1 + annual rate / 2)^(1/6) − 1. The periodic payment is then P × [r(1+r)^n] / [(1+r)^n − 1], where P is the mortgage principal (including any capitalised CMHC premium), r is the effective periodic rate, and n is the total number of payments over the amortization.
CMHC insurance is mandatory when your down payment is less than 20% of the home price. The premium — 4.00% for 5–9.99% down, 3.10% for 10–14.99%, and 2.80% for 15–19.99% — is added to your mortgage balance. It protects the lender, not the borrower. Homes priced above C$1.5 million do not qualify for insured mortgages, so a 20%+ down payment is required for higher-priced properties.
The federal stress test requires federally regulated lenders to qualify borrowers at the higher of their contracted rate plus 2%, or 5.25%. If your mortgage rate is 4.5%, you must prove you can afford payments at 6.5%. This ensures you have a buffer if rates rise at renewal. The stress test applies to purchases, switches to a new lender, and refinances.
For insured mortgages (under 20% down), the maximum amortization is 25 years. For conventional mortgages (20%+ down), most federally regulated lenders offer up to 30 years. Shorter amortizations mean higher payments but substantially lower total interest. A 25-year amortization on a C$440,000 mortgage at 4.5% saves roughly C$60,000 in interest compared to a 30-year amortization.
Amortization is the full repayment period (typically 25–30 years). The term is the length of your current rate agreement — most commonly 5 years. At the end of each term, you renew at the prevailing market rate. Most Canadians renew 4–5 times over the life of their mortgage. The 5-year fixed term is the most popular choice, balancing rate certainty with renewal flexibility.
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