The amortization period — the total length of time to fully repay your mortgage — is one of the most consequential decisions a Canadian homebuyer makes. And in 2026, with new federal rules expanding 30-year eligibility for first-time buyers and new construction purchasers, the 25 vs. 30 year debate has never been more relevant. Here’s a complete, number-driven comparison.
Term vs. Amortization: Understanding the Difference
These two concepts are routinely confused — and they’re fundamentally different:
- Mortgage term: The length of your current rate contract — typically 1 to 5 years. After the term ends, you renew.
- Amortization period: The total time to pay off the entire mortgage — typically 20 to 30 years. Consists of multiple terms.
A 5-year term on a 25-year amortization means you renew up to 5 times before the mortgage is paid off. Your amortization period determines your base monthly payment — your term determines the rate you pay.
Monthly Payment Comparison: 25 vs. 30 Years
| Mortgage Balance | Rate | 25-Year Payment | 30-Year Payment | Monthly Savings |
|---|---|---|---|---|
| $450,000 | 4.04% | $2,374/mo | $2,143/mo | $231/mo |
| $600,000 | 4.04% | $3,165/mo | $2,857/mo | $308/mo |
| $750,000 | 4.04% | $3,956/mo | $3,571/mo | $385/mo |
Total Interest Cost Over the Full Amortization
| Mortgage Balance | 25-Year Total Interest | 30-Year Total Interest | Extra Interest (30-yr) |
|---|---|---|---|
| $450,000 | $262,200 | $321,500 | +$59,300 |
| $600,000 | $349,500 | $428,500 | +$79,000 |
| $750,000 | $436,800 | $535,600 | +$98,800 |
Who Is Eligible for 30-Year Amortization in 2026?
- First-time homebuyers purchasing any property with an insured mortgage (less than 20% down, property under $1M)
- All buyers of new construction — whether first-time or repeat buyers — with an insured mortgage
- Uninsured mortgages (20%+ down) already allowed 30-year amortization at most lenders — this is not new
- Repeat buyers on resale properties with insured mortgages remain capped at 25 years
The Smart Strategy: Choose 30, Pay Like 25
The optimal approach for many buyers: take the 30-year amortization for the lower mandatory payment (improving qualification and cash flow), but use prepayment privileges to make extra payments equivalent to a 25-year schedule. This provides payment flexibility during tight months while accelerating your payoff when cash flow allows — combining the best of both options.
Model your amortization options with the free calculator at mrates.ca.