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CMHC mortgage insurance: premiums and rules

Default insurance protects the lender, not you, if a mortgage goes unpaid. You pay for it when you put less than 20% down, and in exchange you get Canada's lowest mortgage rates.

Figures checked September 24, 2026

The standard premiums

CMHC, Sagen and Canada Guaranty charge the same standard rates, by loan-to-value: 0.60% up to 65%, 1.70% to 75%, 2.40% to 80%, 2.80% to 85%, 3.10% to 90% and 4.00% to 95%. A borrowed down payment costs 4.50%.

With 5% down on a $500,000 home, the $475,000 loan carries a 4.00% premium: $19,000, added to the mortgage.

30-year amortizations

Insured mortgages are limited to 25 years, except for first-time buyers and anyone buying a newly built home, who can take 30 years since December 15, 2024. The longer amortization adds 0.20% to the premium.

Insured, insurable and uninsured

An insured mortgage has less than 20% down and the borrower pays the premium. An insurable one has 20% or more down but still meets the insurers' rules, so the lender can insure it in bulk, usually at a slightly higher rate than insured. Everything else is uninsured and usually priced higher again: refinances, homes of $1.5 million or more, and rentals.

Tax and refunds

The premium can be financed; the provincial sales tax on it can't. It's 8% in Ontario, 9% in Quebec and 6% in Saskatchewan, paid at closing. Energy-efficient homes can get 25% of the premium refunded under the insurers' green programs.

More guides

General information about Canadian mortgages, not financial, legal or tax advice. Lenders and insurers apply their own criteria, and rules change; confirm the details with a licensed mortgage professional before you act.