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CMHC insurance calculator

Mortgage default insurance is the price of borrowing with less than 20 percent down, and its schedule is published to the fraction of a percent, so this tool is arithmetic rather than estimation. The premium is a percentage of the loan set by the loan-to-value band, it is added to the mortgage and paid off over the amortization, and in three provinces a sales tax rides on it that cannot be added and falls due in cash at closing. The defaults below are a published worked example, a $500,000 purchase with $25,000 down, which carries a premium of $19,000 on CMHC's schedule; change any figure and the tool works your own.

Ontario, Quebec and Saskatchewan tax the premium; the tax is cash at closing.

The published schedule

Loan-to-valuePremium, 25 years or lessPremium, 30 years
Up to and including 65 percent0.60%Not published for 30-year insured loans
65.01 to 75 percent1.70%Not published for 30-year insured loans
75.01 to 80 percent2.40%Not published for 30-year insured loans
80.01 to 85 percent2.80%3.00%
85.01 to 90 percent3.10%3.30%
90.01 to 95 percent4.00%4.20%

A non-traditional down payment in the top band pays 4.50 percent at 25 years and 4.70 percent at 30. The premium is charged by whichever of the three insurers the lender uses, CMHC, Sagen or Canada Guaranty, and the standard schedule is the same at all three.

Sources and dates

CMHC's published premium schedule for homeowner loans, owner-occupied homes of one to four units, as published by CMHC at cmhc-schl.gc.ca and checked 2026-11-15. Sagen and Canada Guaranty publish the same standard schedule. Provincial tax on the premium: Ontario 8 percent, Quebec 9 percent, Saskatchewan 6 percent, as published by CMHC; Manitoba removed its tax on July 1, 2020. Eligibility rules (the $1,500,000 ceiling and the 30-year conditions) are the federal rules in force since December 15, 2024.