25-Year vs 30-Year Amortization Canada 2026

New in 2024–2025: Canada expanded access to 30-year amortizations for insured (CMHC) mortgages effective August 1, 2024. Previously restricted to conventional mortgages, this change was designed to help first-time buyers and new build purchasers afford higher-priced markets. The catch: you pay significantly more total interest over the life of the mortgage.

Who Can Get a 30-Year Amortization (Insured)?

First-time homebuyers purchasing a new build with an insured mortgage (less than 20% down)
All buyers purchasing a new build with an insured mortgage (announced August 2024)
Properties must qualify for CMHC/Sagen/Canada Guaranty insurance (under $1.5M)
Conventional mortgages (20%+ down) can have 30-year amortization at many lenders regardless

25-Year vs 30-Year Amortization Calculator

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The Case for 30-Year Amortization

Affordability in High-Cost Markets

In Metro Vancouver, Toronto, and other expensive Canadian cities, the difference between a 25-year and 30-year amortization can be the difference between qualifying for a home or not. The federal government's August 2024 expansion of 30-year amortization was explicitly designed to help buyers in these markets access homeownership. For a $700,000 mortgage at 4.29%, the monthly payment difference is approximately $330/month — significant for many Canadian households.

Cash Flow Flexibility

Lower mandatory payments from a 30-year amortization create financial flexibility. Many financial planners argue that if the monthly savings are invested wisely, the math can work in favour of the lower payment — the key word being "invested." Simply spending the extra $300/month negates any financial advantage and leaves you with substantially more debt and interest paid.

The Case for 25-Year Amortization

Substantially Less Total Interest

The numbers are stark. On a $500,000 mortgage at 4.29%, the 30-year amortization costs approximately $83,000 more in total interest than a 25-year amortization. That's money that could fund significant financial goals — a vacation property down payment, retirement savings, or debt elimination.

Faster Equity Building

A 25-year amortization pays down principal faster, building equity more quickly. This is particularly valuable in uncertain markets — higher equity provides a buffer against price declines and gives you more flexibility to access your home's value for renovations, investment, or emergencies.

Proven Conventional Standard

25-year amortization is the Canadian standard for insured mortgages for a reason — it balances affordability with financial discipline. The maximum CMHC premium is also the same whether you choose 25 or 30 years (since both fall within their eligible criteria under the new rules), so there's no insurance cost tradeoff.

Strategy: 30-Year Amortization + Prepayments

A smart approach for cash-flow-sensitive buyers: take the 30-year amortization for lower required payments, but make prepayments whenever possible. Most Canadian lenders allow 15–20% lump-sum annual prepayments and payment increases. If you treat your minimum payment as a 30-year payment but make extra payments in good months, you get the flexibility of lower required payments with the interest savings of accelerated payoff. Just ensure your lender allows prepayments without penalty.

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Last updated: March 2026. CMHC rules as of August 2024. Not financial advice.