Dominion Lending CentresPart of the DLCG, Canada's #1 mortgage originator · $84.5B in 2025.
25 – 50 yr Amortization · P&I or IO

Commercial Mortgage Payment Calculator

Enter your commercial mortgage amount, rate and amortization — see payments for principal + interest or interest-only, at any frequency. Amortizations from 5 to 50 years, standard at 25.

Your commercial mortgage

$
%
Rate type

Canadian fixed rates compound semi-annually by law (Interest Act, s. 6). Some lenders quote monthly-compounded fixed rates.

Interest compounding

At the same nominal rate, less-frequent compounding produces a lower payment.

Payment type
Payment frequency
yr
mo

Default 25 years, up to 50. Commercial amortizations vary by asset class and lender. 25 years is the market standard. 30–50 years is possible on multi-family, CMHC MLI Select, and select construction-to-perm files.

Principal + Interest payment
$8,930.14/mo
on $1,500,000 at 5.24% fixed, semi-annual compounding, 25 yr 0 mo amortization
EAR (Effective annual rate)
5.24% nominal, semi-annual compounding
5.309%
same as semi-annual baseline

Think of the quoted rate as the “sticker” rate. EAR is the real yearly cost after the lender’s compounding schedule is applied. The gap above is the extra cost versus a semi-annual-compounded mortgage at the same sticker rate — the best-case scenario allowed by Canadian mortgage law. The more often interest compounds, the higher the real cost, even when the sticker rate looks identical. Simple-interest mortgages are not available here, so use this EAR to compare lenders apples-to-apples, not to look for something “better than semi-annual.”

Same payment, every frequency

Monthly
$8,930.14
Semi-monthly
$4,465.07
Bi-weekly
$4,121.60
Weekly
$2,060.80
Accelerated bi-weekly
$4,465.07
Accelerated weekly
$2,232.53

Time to payoff vs semi-annual compounding

Same total dollars paid per year ($107,162), solved against each compounding schedule.

You're already on the Canadian best-case schedule — semi-annual compounding. No time is lost to a heavier compounding convention at this rate.

Over the full amortization

Total payments$2,679,041
Total interest$1,179,041
Payoff dateJul 2051

Assumes the same rate for the entire amortization. Real mortgages renew every 1–5 years at then-current rates. For the full year-by-year schedule and accelerated payment options, see the Amortization Calculator.

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