If you're used to how US mortgages work — a single rate locked for the full 30-year loan — the Canadian system takes some getting used to. It's built around two separate numbers that most first-time buyers conflate.
Amortization: the full payoff timeline
Your amortization period is the total time it would take to pay off the mortgage completely at your current payment schedule — commonly 25 years, and up to 30 years for some buyers with 20%+ down. This is the number your monthly payment is actually calculated against.
Term: the length of your current contract
Your term is much shorter — typically 1 to 5 years — and it's the length of time your current rate and conditions are locked in. At the end of the term, you renew: usually with a new rate reflecting whatever the market is doing at that time, and usually without having to fully requalify unless you're switching lenders.
This is the structural reason Canadian mortgage rates track the broader rate environment much more closely than US 30-year fixed rates do — nearly every Canadian mortgage holder faces a renewal, and therefore a real rate reset, well within the life of their loan.
What that means in practice
- Your rate isn't fixed for the life of the loan — only for the current term. Plan for the real possibility that your rate at renewal will differ from what you started with.
- Shorter terms trade certainty for flexibility. A 1-year term exposes you to more renewal risk but can suit someone expecting rates to fall, or planning to sell soon. A 5-year term gives you more payment certainty at the cost of flexibility if rates fall or your plans change.
- Breaking a term early has real costs. Selling, refinancing, or switching lenders before your term ends typically triggers a prepayment penalty — the greater of three months' interest or an interest rate differential (IRD) calculation, which can be substantial on a fixed-rate mortgage with several years left. Ask your lender for the actual penalty calculation before assuming you can break a term cheaply.
- Amortization can (usually) shrink at renewal. If you make extra payments or lump-sum prepayments during a term, your amortization shortens even though your term length doesn't change — a straightforward way to pay off a mortgage faster without changing your monthly budget.
Prepayment privileges are worth understanding up front
Most Canadian mortgages allow some combination of lump-sum prepayments (often up to 10–20% of the original principal per year) and increased regular payments, without penalty. These privileges vary meaningfully by lender and product — if paying down debt faster matters to you, compare prepayment terms as carefully as you compare the rate itself.
The renewal conversation is worth having early
Many homeowners simply accept whatever renewal rate their current lender offers, without shopping it — often leaving real savings on the table. Start that conversation 3–4 months before your term ends, not the week it expires, so you actually have time to compare and switch lenders if it makes sense.
Have questions about how amortization and term affect a specific property you're considering? Reach out and we'll walk through the real numbers with you.