Updated November 1, 2026: CanadaMortgageCalc.com launches as its own site · rules re-checked against CMHC, OSFI and provincial sourcesWhat’s new →
CanadaMortgageCalc
Canada mortgage payment calculator · 2026

The Canadian mortgage calculator that gets the details right.

Payments with true semi-annual compounding, CMHC insurance, every payment frequency, the stress test, land transfer tax and your renewal, all in one place and updated as the rules change.

Canadian semi-annual compounding 2026 CMHC & OSFI rules Rules checked November 1, 2026 Private: runs in your browser

Your mortgage

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Sets the CMHC premium sales tax and land transfer tax.
Prepayments
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Income & debts (for affordability)
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Leave at 0 to skip. Never saved or put in links.
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Car, cards, lines of credit
Closing costs
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Title insurance, adjustments, moving

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Every calculator you need to buy, renew or pay off

Each tool focuses on one question and uses the same tested engine, so the numbers always agree.

Mortgage payment calculator

Payment, CMHC premium, total interest and schedule for any frequency.

How much house can I afford?

Maximum price from your income, debts and down payment at the stress-test rate.

CMHC insurance calculator

Minimum down payment, premium and total mortgage for any price.

Land transfer tax calculator

Ontario, Toronto and B.C. with first-time buyer rebates.

Stress test calculator

Your qualifying rate and whether you pass GDS/TDS.

Accelerated biweekly calculator

Compare all six payment frequencies and the interest each saves.

Mortgage renewal calculator

Your new payment at renewal and how much each 0.25% matters.

Prepayment calculator

Interest and years saved by extra payments and annual lump sums.

Mortgage penalty calculator

Estimate three months’ interest and IRD before you break your mortgage.

Closing costs calculator

All the cash you need on closing day, not just the down payment.

Amortization schedule

Year-by-year principal, interest and balance with CSV download.

Calculators by province

Ontario, Toronto, B.C., Alberta and Quebec with local taxes built in.

Latest updates

We re-check every rule against the official source and log each change.

CanadaMortgageCalc.com launches as its own siteAll 2026 rules re-checked against official sourcesNew: renewal, penalty and prepayment calculatorsNew: cash-to-close and shareable scenariosToronto raises municipal land transfer tax on homes over $3 million

All updates →

Popular guides

Plain-English explanations with worked Canadian examples.

Accelerated Biweekly vs Monthly Mortgage Payments in CanadaGDS and TDS Ratios: How Lenders Decide What You Can AffordHow Canadian Mortgage Interest Is Calculated (Semi-Annual Compounding)Closing Costs in Canada: What to Budget Beyond the Down PaymentCMHC Mortgage Insurance Explained (2026 Premiums)

All guides →

How this Canadian mortgage calculator works

Enter the home price, your down payment, the interest rate and the amortization. The calculator adds the CMHC premium when you put less than 20% down, then works out the payment with semi-annual compounding, the method Canadian lenders are required to use for fixed-rate mortgages. Results update as you type.

What you get

  • Payment for any frequency: monthly, semi-monthly, biweekly, weekly and both accelerated options, with the interest each one costs.
  • CMHC insurance at the current 2.80% / 3.10% / 4.00% premiums, including the 0.20% surcharge for 30-year amortizations and the provincial sales tax on the premium.
  • Stress test and affordability: your qualifying rate, GDS and TDS ratios against CMHC’s 39% and 44% limits, and the highest price you could qualify for.
  • Cash to close: down payment, land transfer tax (Ontario, Toronto, B.C.) with first-time buyer rebates, premium tax and legal fees.
  • Renewal scenario: what happens to your payment if rates are higher or lower when your term ends.
  • Amortization schedule by year, with a CSV of every payment.

Why Canadian mortgages need a Canadian calculator

Most online mortgage calculators are American. They compound monthly, ignore mortgage default insurance, know nothing about land transfer tax and treat “biweekly” as one thing. In Canada, the Interest Act means fixed rates compound twice a year, CMHC rules decide your minimum down payment, and accelerated payments are a standard lender option. Getting those right is the difference between a ballpark and a number you can plan around.

Every rule used here is listed with its official source on our 2026 mortgage rules page and in the methodology, and the engine is tested against official examples before each release.

Frequently asked questions

How is a mortgage payment calculated in Canada?

Canadian law (the Interest Act) requires fixed-rate mortgages to state interest compounded semi-annually, not monthly. A 5% mortgage therefore charges about 0.4124% a month, not 5% ÷ 12 = 0.4167%. The payment is then the standard annuity formula: P × i ÷ (1 − (1 + i)−n), where i is the monthly rate and n the number of payments.

That is why US calculators overstate Canadian payments slightly. On a $500,000 mortgage at 5% over 25 years the difference is about $15 a month.

What is the minimum down payment in Canada?

5% of the first $500,000 of the price, plus 10% of the part between $500,000 and $1.5 million. Homes of $1.5 million or more need 20% down, because insured mortgages are capped at $1.5 million. A $650,000 home therefore needs at least $40,000 down.

When do I need CMHC mortgage insurance?

Whenever your down payment is under 20%. The premium is 2.80% to 4.00% of the loan depending on your down payment, plus 0.20% if you take a 30-year amortization. It is added to the mortgage, so you pay interest on it, but the provincial sales tax on it (Ontario, Quebec and Saskatchewan) must be paid in cash at closing.

Which payment frequency saves the most?

Accelerated weekly and accelerated biweekly. They set each payment at a quarter or half of the monthly payment, so you pay the equivalent of 13 monthly payments a year instead of 12. On a typical $600,000 mortgage that saves around $60,000 in interest and takes about 3 years off the amortization. Regular biweekly and weekly payments save almost nothing.

Can I get a 30-year amortization?

With 20% or more down (an uninsured mortgage) most lenders offer up to 30 years. With less than 20% down, 30 years has been allowed since December 15, 2024 only for first-time buyers and buyers of newly built homes, and the CMHC premium rises by 0.20%.

What does the stress test mean for me?

Lenders must check that you could afford your payment at the higher of your contract rate plus 2% or 5.25% (OSFI’s minimum qualifying rate). Open the Stress test & affordability tab above and enter your income to see your GDS and TDS ratios at that rate.

Are my numbers stored anywhere?

No. Every calculation runs in your browser. The “Copy link” button puts the scenario (price, rate, term) in the address so you can share it, but never your income or debts.

Official sources Checked November 1, 2026