Best Mortgage Calculators in Canada
Calculate Canadian mortgage payments, affordability, and prepayment options. CMHC insurance included.
CalculatorZone Editorial Team11 min readPublished Updated
Introduction
Canadian mortgages operate under rules distinct from those in the US or UK. CMHC mortgage insurance is mandatory for down payments under 20%, the mortgage stress test requires qualification at the contract rate plus 2%, and maximum amortisation periods differ based on whether the mortgage is insured. With Canadian home prices remaining among the highest globally — especially in Toronto and Vancouver — these calculators are essential tools for any Canadian buyer.
Key Calculators
- CMHC Mortgage Insurance Calculator — If your down payment is under 20%, you must purchase CMHC insurance. Premium is 4.00% for a 5–9.99% down payment, 3.10% for 10–14.99%, and 2.80% for 15–19.99%. The premium is added to your mortgage. Insured mortgages are available for homes priced up to $1.5 million (since 15 December 2024): Open the CMHC Mortgage Insurance Calculator
- Stress Test Calculator — Canadian lenders must qualify you at the higher of your contract rate + 2% or a minimum qualifying rate set by regulators. This significantly reduces maximum borrowing capacity: Open the Stress Test Calculator
- Mortgage Repayment Calculator — Insured mortgages: maximum 25-year amortisation, or 30 years for first-time buyers and for buyers of new builds (since 15 December 2024). Uninsured (down payment 20%+): up to 30 years. Canadian mortgages compound semi-annually, not monthly: Open the Mortgage Repayment Calculator
- Overpayment Calculator — Most Canadian fixed-rate mortgages allow 10–20% annual lump-sum prepayments without penalty: Open the Overpayment Calculator
Monthly Payment Examples (CAD, 5-Year Fixed at 5.5%)
Payments assume a 5.5% rate compounded semi-annually, a 25-year amortisation and the CMHC premium added to the mortgage. They are examples, not quotes.
| Purchase Price | Down Payment | CMHC Premium | Monthly Payment (25yr) |
|---|---|---|---|
| $500,000 | $25,000 (5%) | $19,000 | ~$3,015 |
| $700,000 | $70,000 (10%) | $19,530 | ~$3,965 |
| $900,000 | $180,000 (20%) | $0 (uninsured) | ~$4,395 |
Tips for Canadian Homebuyers
The stress test is non-negotiable — ensure you run your numbers at contract rate + 2% before falling in love with a property. Canada's semi-annual compounding convention means Canadian mortgages are slightly cheaper than US monthly-compounding mortgages at the same stated rate. If you're a first-time buyer, investigate the First Home Savings Account (FHSA) — it allows $8,000/year in tax-deductible contributions that grow tax-free and can be withdrawn tax-free for a qualifying home purchase.