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Canadian mortgages work differently from American ones. In Canada, interest is compounded semi-annually rather than monthly, lenders offer terms of 1-10 years (not 30-year fixed terms), and mortgages with less than 20% down require CMHC mortgage insurance. This calculator uses the correct Canadian compounding method to give you accurate payment estimates.
Canadian vs U.S. Mortgage Differences
The key difference is compounding. In Canada, lenders quote a nominal rate but compound interest every 6 months. This means the effective monthly rate is lower than simply dividing the annual rate by 12. Using the wrong formula can under-estimate your payment by a small but meaningful amount over 25 years.
Effective Monthly Rate = (1 + Nominal Rate / 2)^(1/6) - 1
This is why a Canadian calculator gives slightly different results than an American one for the same stated rate.
CMHC Mortgage Insurance (CMHC)
In Canada, any mortgage with less than 20% down requires CMHC (or equivalent insurer) mortgage default insurance. The premium is added to your mortgage balance. This insurance protects the lender, not you, but it allows buyers to purchase with as little as 5% down.
| Down Payment | CMHC Premium |
|---|---|
| 5% - 9.99% | 4.00% of mortgage |
| 10% - 14.99% | 3.10% of mortgage |
| 15% - 19.99% | 2.80% of mortgage |
| 20% or more | No CMHC required |
Amortization vs. Term
In Canada, the amortization period is the total time to pay off the loan (typically 25 years). The term is how long your rate is locked in (typically 5 years). At the end of each term you renew the mortgage at current rates. This means most Canadian homeowners refinance multiple times over the life of their mortgage.
Frequently Asked Questions
What is the maximum amortization in Canada?⌄
For insured mortgages (less than 20% down), the maximum amortization is 25 years. For uninsured mortgages (20%+ down), lenders can offer up to 30 years. The federal government periodically adjusts these rules to manage housing affordability.
What are Canadian mortgage stress test rules?⌄
All Canadian mortgage applicants must qualify at the higher of the Bank of Canada's benchmark rate or their contract rate plus 2%. This stress test ensures borrowers can handle rate increases at renewal. It applies to both insured and uninsured mortgages.
Can I make prepayments on a Canadian mortgage?⌄
Most Canadian mortgage contracts allow prepayments of 10-20% of the original principal per year without penalty. You can also increase your regular payment amount within limits. Exceeding the allowable prepayment triggers a prepayment penalty, which can be significant on fixed-rate mortgages.
What happens at mortgage renewal in Canada?⌄
When your term expires (often 5 years), you renegotiate the rate for the next term. If rates have risen, your payment will increase. Lenders typically send renewal offers 3-6 months before the end of your term. You are free to shop other lenders, though switching lenders requires a new application and may involve legal fees.