Canadian Mortgage Calculator
Calculate your Canadian mortgage payment using semi-annual compounding. Includes CMHC mortgage insurance, flexible payment frequencies, and a full amortization schedule.
Mortgage Details
How Canadian Mortgages Work
Canadian mortgages differ from American mortgages in several important ways. Understanding these differences is essential for accurate payment planning:
- Semi-Annual Compounding: By law (Bank Act of Canada), Canadian fixed-rate mortgages compound interest semi-annually, not monthly. This results in slightly lower effective rates compared to the same nominal rate with monthly compounding.
- Mortgage Term vs. Amortization: The amortization period (typically 25 years) is the total repayment timeline. The term (usually 1-10 years) is how long your rate is locked in. You renew at new rates when the term expires.
- CMHC Mortgage Insurance: If your down payment is less than 20%, you must purchase mortgage default insurance from CMHC (or Sagan/Canada Guaranty). The premium is 2.8% to 4% of the mortgage amount, added to your principal.
- Minimum Down Payment: 5% on the first $500,000 of home price, 10% on the portion above $500,000. Homes over $1 million require 20% minimum.
- Payment Frequency Options: Canadians can choose monthly, bi-weekly, weekly, semi-monthly, or accelerated options. Accelerated bi-weekly/weekly payments let you pay off your mortgage faster.
How to Use This Calculator
- Home Price: Enter the purchase price of the property. The calculator handles CMHC insurance automatically if your down payment is under 20%.
- Down Payment: Enter your cash down payment. Minimum is 5% for homes under $500K. The calculator shows your down payment percentage.
- Interest Rate: Enter the posted or negotiated annual rate. Canadian banks post rates on their websites; mortgage brokers often secure lower rates.
- Amortization Period: Standard is 25 years. Insured mortgages (under 20% down) are capped at 25 years. Uninsured can go up to 30 years.
- Payment Frequency: Monthly is standard. Accelerated bi-weekly makes 26 half-payments per year (equivalent to 13 monthly payments), paying off the mortgage ~3 years early.
- Mortgage Term: How long your rate is locked. 5-year fixed is most popular. At renewal, you negotiate a new rate for the remaining amortization.
Canadian Mortgage Formulas
Canadian mortgages use semi-annual compounding, which requires converting the nominal rate before calculating payments:
Practical Example
You’re buying a $500,000 home in Toronto with a $100,000 down payment (20%) at 5.5% interest over 25 years.
Since your down payment is 20%, no CMHC insurance is required. Your mortgage principal is $400,000.
Using semi-annual compounding: the effective monthly rate is 0.4532% (vs. 0.4583% with monthly compounding). Your monthly payment is approximately $2,437.
Over 25 years, you’d pay $731,067 total — meaning $331,067 in interest. Switching to accelerated bi-weekly payments (~$1,218 every two weeks) would pay off the mortgage about 3 years early and save roughly $48,000 in interest.
Canadian Mortgage FAQ
What is CMHC mortgage insurance and when do I need it?
+CMHC (Canada Mortgage and Housing Corporation) insurance is mandatory when your down payment is less than 20%. The premium ranges from 2.8% to 4% of the mortgage amount and is added to your principal. It protects the lender, not you, but it allows you to buy with as little as 5% down.
Why does Canada use semi-annual compounding?
+The Bank Act of Canada mandates that fixed-rate mortgages compound semi-annually (twice per year), not monthly. This actually benefits borrowers — a 5% rate in Canada produces less total interest than a 5% rate compounded monthly in the US. Variable-rate mortgages in Canada do compound monthly.
What’s the difference between mortgage term and amortization?
+Amortization is the total time to fully repay the mortgage (e.g., 25 years). The term is how long your current interest rate and conditions are locked (e.g., 5 years). When the term ends, you renew or switch lenders with the remaining balance.
How do accelerated payments save money?
+Accelerated bi-weekly takes your monthly payment, divides by 2, and pays that every 2 weeks. Since there are 26 bi-weekly periods per year, you effectively make 13 monthly payments instead of 12. That extra payment goes entirely toward principal, saving years and tens of thousands in interest.
What’s the minimum down payment in Canada?
+For homes up to $500,000: 5% minimum. For homes between $500,000 and $999,999: 5% on the first $500K plus 10% on the remaining portion. For homes $1 million and above: 20% minimum (CMHC insurance is not available). First-time buyers may qualify for additional programs.