Semi-annual compounding · 2026 Verified against primary sources Sources shown on every page No sign-up · No email
The housing desk

What the mortgage really costs.

Semi-annual compounding the way Canadian lenders must quote it, with CMHC default insurance added when your down payment is under 20%.

Premium tiers from CMHC; down payment rules from the Financial Consumer Agency of Canada; compounding per the Interest Act, s. 6.


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Estimated payment per month
$0

 

Principal and interest$0
Property tax$0
Home insurance$0
Condo fees$0
Total per payment$0
How the loan is built
Down payment$0
Mortgage before insurance$0
CMHC default insurance$0
Total mortgage$0
Loan-to-value
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Total interest
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Payoff time
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Amortization is the life of the loan. Your term — the contract at this rate — is usually one to five years, after which you renew at whatever rates exist then.

Why Canadian mortgages compound differently

Canadian mortgages are not compounded monthly the way American ones are. Under section 6 of the federal Interest Act, a fixed-rate mortgage in Canada must be compounded no more than semi-annually, not in advance. A posted 4.79% is converted to a periodic rate before the payment is worked out. Running a Canadian mortgage through the American monthly formula overstates the payment slightly; this calculator uses the Canadian one.

Minimum down payment

Purchase priceMinimum down paymentExample
$500,000 or less5% of the price$450,000 → $22,500
$500,000 – $1,500,0005% of the first $500,000, then 10%$800,000 → $55,000
Over $1,500,00020% — insurance unavailable$1,700,000 → $340,000

Accelerated payments

An accelerated bi-weekly payment is your monthly payment halved and paid 26 times a year rather than 24 — quietly making one extra monthly payment every year. On a typical 25-year mortgage it shortens the amortization by roughly three years. Switch the frequency above and watch the payoff time move.

CMHC default insurance premiums

Premium as a percentage of the mortgage amount

Down paymentLoan-to-valuePremiumOn $500,000
20% or more80% or lessNone$0
15% – 19.99%80.01% – 85%2.80%$14,000
10% – 14.99%85.01% – 90%3.10%$15,500
5% – 9.99%90.01% – 95%4.00%$20,000

A 30-year amortization on an insured mortgage adds 0.20%. The premium is added to your principal, so you pay interest on it for the whole amortization. In Ontario, Quebec, Saskatchewan and Manitoba, provincial sales tax applies to the premium and must be paid in cash at closing.

What this does not include

  • Closing costs. Land transfer tax, legal fees, title insurance and the inspection run 1.5% to 4% of the price, in cash.
  • The stress test. Lenders qualify you at the greater of your contract rate plus 2% or 5.25%, so the mortgage you qualify for may be smaller than the one priced here.
  • Rate changes at renewal, prepayment privileges and variable-rate payment adjustments.

Reviewed 1 September 2026 by QuickCalcs Canada. The figure on your lender’s commitment letter is the one that counts. Estimates for general information only — not financial, tax or legal advice.