CMHC insurance calculator

In short 3 min read

CMHC insurance on a $500,000 home with 5% down is $19,000 — 4.00% of the $475,000 loan, added to your mortgage rather than paid up front. But in Ontario you also owe 8% sales tax on that premium, $1,520, and it must be paid in cash on closing day. It cannot be financed.

Your premium gets added to the mortgage. The provincial sales tax on that premium does not — it is cash, due on closing day, and most calculators never mention it.

$19,000
$1,520 of that is cash. In Ontario the 8% sales tax on a $19,000 premium is due on closing day and cannot be financed.

CMHC premium rates for 2026

Loan-to-valuePremiumDown payment
Up to 65%0.60%35%
65.00% to 75%1.70%25%
75.00% to 80%2.40%20%
80.00% to 85%2.80%15%
85.00% to 90%3.10%10%
90.00% to 95%4.00%5%

Add 0.20% if your amortisation runs past 25 years. A non-traditional down payment — borrowed, or gifted by someone other than an immediate relative — raises the top band to 4.50%.

The minimum down payment is tiered, not a flat percentage

5% of the first $500,000, then 10% of the portion between $500,000 and $1,500,000. On a $700,000 home that is $45,000 — not $35,000, which is what a flat 5% would suggest. Above $1,500,000 nothing is insurable at all, so you need a full 20%.

What calculators get wrong here

The number this all adds up to

Premium, sales tax, land transfer tax, legal fees — the reason people can't buy isn't the monthly payment, it's the pile of cash needed on day one. Taking over a mortgage that already exists costs closer to $7,500.

See what you can afford →

Premium rates from CMHC's published premium schedule for homeowner and small rental loans, current 2026-08-04. Sagen and Canada Guaranty publish materially similar schedules. This is information, not advice — your lender confirms the final premium.