Canada Mortgage Payment Calculator (Semi-Annual Compounding) 2026
Canadian mortgage payments with semi-annual compounding — monthly, bi-weekly and accelerated — plus CMHC premium, interest over the term, balance at renewal, payoff time with prepayments, the stress-test payment, renewal-rate shock and an estimate of the penalty to break the mortgage.
| Mortgage amount | — |
|---|---|
| CMHC premium | — |
| Interest over the term / amortization | — |
| Balance at the end of the term | — |
| Payoff time with this schedule | — |
| Accelerated vs regular | — |
| Stress-test payment (qualifying rate) | — |
| Payment if rates rise 1% / 2% at renewal | — |
| Estimated penalty to break the mortgage mid-term | — |
| Total cost of the home | — |
In short
Canadian fixed-rate mortgages compound semi-annually, so $500,000 at 4.29% over 25 years costs $2,709 a month; a $750,000 home with 10% down carries a 3.1% CMHC premium and a $3,771 monthly or $1,885 accelerated bi-weekly payment, which clears the loan about three years early, and breaking a fixed term costs the greater of three months' interest and the interest rate differential.
Who this is for: Buyers and renewers comparing payment frequencies, amortizations and prepayments, and owners estimating the cost of breaking a term.
Canadian mortgage payments: semi-annual compounding, terms and penalties
Canadian mortgages differ from American ones in three ways that change the numbers. Compounding is semi-annual for fixed rates (the Interest Act), so a 4.29% rate costs slightly less than 4.29%/12 a month. The term (1–10 years, usually 5) is shorter than the amortization (25–30 years): at the end of each term you renew at the market rate, with no stress test if you stay with your lender. And prepayment penalties apply if you break a closed term early — three months' interest on a variable, the greater of that and the interest-rate differential on a fixed.
- Accelerated payments: paying half the monthly amount every two weeks makes 26 payments — one extra month a year — and cuts a 25-year amortization by about three years.
- Prepayment privileges: typically 10–20% of the original principal per year as lump sums plus a 10–20% payment increase, penalty-free.
- Renewal risk: a 2-point rise at renewal on a $600,000 balance adds roughly $650 a month — the stress test exists to make sure you could absorb it.
- Insured vs conventional: under 20% down the CMHC premium (2.8–4%) is added to the loan; 20% or more avoids it but lenders may price conventional mortgages slightly higher.
- Fixed vs variable: variables move with prime (some keep the payment fixed and adjust the amortization — watch the trigger rate); fixed gives certainty for the term.
See also: Canada Mortgage Affordability & Stress Test Calculator, Land Transfer Tax Calculator — Ontario, Toronto, BC & All Provinces, FHSA Calculator — First Home Savings Account.
Assumptions
- Periodic rate = (1 + r/2)^(2/periods) − 1 (semi-annual compounding); accelerated bi-weekly/weekly = monthly ÷ 2 or ÷ 4; annual lump sums applied at each year end.
- CMHC premium by down-payment band added to the loan (none at 20%+ or above $1.5m); PST on the premium shown for ON/QC/SK/MB.
- Penalty estimate at mid-term = three months' interest (variable) or the greater of that and (contract rate − comparison rate) × balance × years left (fixed).
Worked example
Mortgage $675,000 + 3.10% premium $20,925 = $695,925 (plus $1,674 Ontario PST at closing). Monthly payment would be $3,771; accelerated bi-weekly = $1,885 every two weeks. Over the 5-year term you pay about $136,800 of interest and owe $587,600 at renewal; the accelerated schedule clears the loan in about 21.8 years instead of 25, saving roughly $63,000 of interest. Stress-test payment: $4,573 at 6.29%. A 2% rise at renewal lifts the payment to about $4,280 a month over the remaining 20 years.
Frequently asked questions
How is a Canadian mortgage payment calculated?
Fixed-rate mortgages compound semi-annually: the monthly rate is (1 + r/2)^(1/6) − 1, applied to the balance over the amortization in months — a $500,000 mortgage at 4.29% over 25 years costs $2,709 a month (versus $2,720 with monthly compounding).
What is accelerated bi-weekly?
Half the monthly payment every two weeks — 26 payments a year, equivalent to 13 monthly payments — which pays a 25-year mortgage off about 3 years early; regular bi-weekly (monthly × 12 ÷ 26) saves almost nothing.
What is the penalty for breaking a fixed mortgage?
The greater of three months' interest and the interest rate differential (your rate minus the lender's current rate for the remaining term, times the balance and years left); big banks use posted rates, which can make the IRD very large. Variable mortgages charge three months' interest.
Should I choose a 25 or 30-year amortization?
30 years lowers the payment by about 10% but adds roughly 20% more total interest; insured mortgages allow 30 years only for first-time buyers and new builds. Many buyers take 30 for flexibility and prepay.
What is the trigger rate on a variable mortgage?
On fixed-payment variables, the rate at which your payment no longer covers the interest, so the balance grows; lenders then raise the payment or require a lump sum.
Do I have to requalify at renewal?
Not with your current lender; since late 2024 straight switches to another lender at renewal are also exempt from the stress test, provided the amount and amortization are unchanged.
What is a mortgage term vs amortization?
The amortization is the total time to pay off the loan (25–30 years); the term is the contract period with a fixed rate or formula (usually 5 years), after which you renew at current rates.
Can I port my mortgage to a new home?
Most lenders allow porting — moving the rate and balance to a new property — often with a blended rate for any extra borrowing, avoiding the penalty.
People also ask
How much is the mortgage payment on $500,000 in Canada?
About $2,908 a month at 5% over 25 years with semi-annual compounding, or $1,454 accelerated bi-weekly.
Why is Canadian mortgage interest compounded semi-annually?
The Interest Act requires fixed-rate mortgages to quote interest compounded no more than twice a year, which makes a 5% Canadian rate slightly cheaper than 5% compounded monthly.
What is the mortgage stress test rate?
The higher of your contract rate plus 2% or 5.25%; you must qualify at that rate under OSFI/CMHC rules.
What is the minimum down payment in Canada?
5% on the first $500,000 and 10% on the portion to $1.5 million; 20% above $1.5 million, where CMHC insurance is unavailable.
What is accelerated bi-weekly?
Half the monthly payment every two weeks — 26 payments equal to 13 months — which pays the mortgage off years earlier.
Can I get a 30-year amortization?
Yes for uninsured mortgages and, since 2024, for insured first-time buyers and new builds; 25 years is the standard insured maximum otherwise.
What happens at mortgage renewal?
The remaining balance is re-priced at current rates for a new term (1–5 years); you can switch lenders without a new stress test on a straight renewal.
How much is CMHC insurance?
2.8% of the loan at 5–9.99% down, 3.1% at 10–14.99% and 4% at 15–19.99%, added to the mortgage.
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