Does a 30-year mortgage amortization make buying more affordable in Canada?

The amortization is the estimated time required to repay the mortgage in full at the current payment schedule. The mortgage term is the shorter contract period—often several years—after which the remaining balance is renewed, switched or paid out.

Extending the amortization from 25 to 30 years spreads principal repayment over more payments. That generally reduces the scheduled payment, but principal is repaid more slowly and interest has more time to accumulate. A buyer should compare the payment and the total borrowing cost, not treat the lower payment as a discount.

Federal insured-mortgage reforms took effect December 15, 2024. When the down payment is below 20%, the maximum amortization is generally 30 years if the borrower is an eligible first-time buyer and/or the property is a new build; otherwise, the insured maximum is generally 25 years. The other mortgage-insurance and lender requirements still apply.

For this rule, at least one borrower can qualify as a first-time buyer by meeting one of three tests: never having purchased a home; not having occupied a home owned by that borrower or their current spouse or common-law partner as a principal residence during the previous four-year period; or having recently experienced a marriage or common-law partnership breakdown.

This definition belongs to the insured 30-year amortization rule. The FHSA, RRSP Home Buyers’ Plan, federal GST rebate and B.C. property-transfer-tax programs have their own tests. Eligibility for one benefit does not prove eligibility for another.

• Less than 20% down: mortgage insurance is generally required
• Eligible first-time buyer or new build: up to 30 years may be available
• Neither condition applies: the insured maximum is generally 25 years
• 20% down or more: the lender sets its maximum amortization under its own policy

CMHC’s current premium information applies a 0.20-percentage-point surcharge when an insured amortization extends beyond 25 years. The premium is commonly added to the mortgage, which increases the balance on which interest is charged.

Ask the lender for two written illustrations using the same purchase price, down payment, rate, term and payment frequency: one at 25 years and one at 30 years. Each should show the insurance premium, starting mortgage balance, scheduled payment, principal remaining after the first term and total interest over the full amortization if assumptions remain unchanged.

A lower mortgage payment can preserve monthly breathing room, but the home still carries property tax, insurance, utilities, maintenance and possible strata fees or levies. The lender’s maximum approval is a financing result—not a household spending recommendation.

In South Delta, compare the mortgage with the actual ownership profile of a Tsawwassen condo, a Ladner townhome or a detached home that may need more maintenance. In Vancouver and Richmond, strata fees, insurance deductibles and future building work can erase the apparent monthly advantage of a longer amortization if they were not included in the budget.

A 30-year schedule may be defensible when it protects an emergency reserve, keeps the complete ownership budget comfortable or supports a suitable long-term home. It is less convincing when the only purpose is to stretch to the lender’s maximum price while leaving no room for closing costs, repairs or a future renewal at a different rate.

Before writing an offer, confirm the maximum purchase price under both amortizations and then choose a personal ceiling below the point where savings, maintenance or ordinary family spending becomes fragile.

• Compare 25- and 30-year payments using identical assumptions
• Review the mortgage-insurance premium and resulting loan balance
• Check the balance projected at the end of the first term
• Budget taxes, insurance, strata costs, utilities and maintenance separately
• Confirm every approval condition before subject removal