What a conventional mortgage means in Canada and how it differs from high-ratio insured borrowing.
A conventional mortgage is a mortgage with a loan-to-value ratio of 80% or less, which usually means the borrower made a down payment of at least 20%.
This term matters because it marks a major structural divide in Canadian lending. Once the down payment reaches 20% or more, the mortgage usually leaves the high-ratio insured category and moves into the conventional range.
CMHC describes a conventional mortgage as a mortgage loan up to a maximum of 80% of the property’s value. In practice, that usually means the mortgage does not require the same mandatory default-insurance treatment as a high-ratio mortgage.
Conventional mortgages can still be fixed or variable, open or closed, and they may still face lender-specific qualification rules. “Conventional” mainly describes the leverage position, not the full product design.
If a buyer purchases a home with 25% down, the mortgage would generally fall into the conventional range because the loan is 75% of the property’s value.
Conventional mortgage does not automatically mean the best or cheapest mortgage. It simply means the leverage is low enough that the file is not in the standard high-ratio category.
Borrowers also sometimes confuse conventional mortgage with uninsured mortgage. Many conventional mortgages are uninsured, but those terms focus on slightly different things.
Lender overlays, insurable categories, and product-specific rules can create edge cases. Borrowers should look beyond the label and understand the exact contract and qualification terms.