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25 years or 30: the longer amortization isn't open to everyone.

The 30-year amortization rule only opened up for a specific slice of the market since December 2024. Here's exactly who qualifies, and the real trade-off between a lower payment and more total interest.

Mortgage Industry 8 min read By the Treadstone Associates team · Canada Updated 2026-08

Key takeaways

  • Since December 15, 2024, insured mortgages can carry a 30-year amortization for first-time homebuyers and buyers of newly constructed homes; everyone else insured is still capped at 25 years.
  • The 30-year option only applies to high-ratio (insured) mortgages requiring mortgage loan insurance — borrowers putting 20% or more down aren't bound by the insured-mortgage rule and negotiate amortization directly with their lender.
  • A longer amortization lowers the monthly payment but increases the total interest paid over the life of the mortgage — the trade-off is cash flow today against cost over time.
  • “First-time homebuyer” has a specific federal definition for this rule — it includes buyers who haven't owned in the last four years or who recently went through a relationship breakdown, not only someone who has literally never owned before.

A 30-year amortization sounds like it should be available to any buyer stretching their budget, but the rule only opened up for a specific slice of the market. A first-time buyer or new-build purchaser taking a high-ratio insured mortgage can now amortize over 30 years; almost everyone else insured is still capped at 25.

Here's exactly who qualifies for the 30-year option, how “first-time homebuyer” is actually defined for this rule, what changes for buyers with 20% or more down, and the real trade-off between a lower payment now and more interest over the life of the loan.

01 · What exactly changed for mortgage amortization on December 15, 2024?

Effective for mortgage insurance applications submitted on or after December 15, 2024, the federal government expanded eligibility for 30-year amortizations on insured mortgages to all first-time homebuyers and all buyers of newly constructed homes. The measure applies to borrowers requiring high loan-to-value mortgage insurance — where the total loan-to-value exceeds 80% — and was announced alongside a separate increase in the insured mortgage price cap to $1.5 million.

The two changes were designed to work together: a higher price cap widens the pool of homes that can still be bought with a small down payment, and the longer amortization softens the monthly payment on that larger insured loan. A broker working with a first-time buyer in a higher-priced market should check both eligibility tests at once, since either one changes what the client can actually qualify for.

02 · Who actually counts as a “first-time homebuyer” for this rule?

  • The borrower has never purchased a home before, or
  • In the last four years, the borrower has not occupied a home as a principal residence that they or their current spouse or common-law partner owned, or
  • The borrower recently experienced the breakdown of a marriage or common-law partnership, following the same approach the Canada Revenue Agency uses for the Home Buyers' Plan.

A newly constructed home similarly has a specific test: it must not have been previously occupied for residential purposes, though this doesn't exclude a new condominium unit with an interim occupancy period.

The recently-separated criterion tends to surprise clients most: someone who owned a home for a decade with a former spouse, and hasn't owned since the relationship ended, can still qualify as a first-time buyer under this rule — it follows the same approach CRA already uses for the Home Buyers' Plan, so a broker can lean on that existing framework when explaining it.

03 · Who is still capped at 25 years?

Maximum amortization by buyer scenario
Buyer scenarioMax amortizationWhy
First-time buyer or new build, insured, under 20% down30 yearsExpanded eligibility effective Dec. 15, 2024
Insured, not a first-time buyer, not a new build, under 20% down25 yearsStandard insured-mortgage rule
20% or more down (uninsured)Set by the lenderNot bound by the insured-mortgage amortization rule

An insured borrower who doesn't meet either the first-time-buyer or new-build test is still held to the standard 25-year maximum, regardless of the mortgage's size. A repeat buyer purchasing a resale home with less than 20% down, for example, doesn't get access to the 30-year option no matter how large or small the mortgage is.

04 · What's the actual trade-off between a 25-year and a 30-year amortization?

A longer amortization spreads payments over more years, which lowers the required monthly payment — but it also means more years of interest accruing on the outstanding balance, which raises the total interest paid over the life of the mortgage.

For a client stretching to qualify, the lower payment on a 30-year amortization can be the difference between qualifying and not — which is exactly the scenario the rule was designed for. For a client who could comfortably afford the higher 25-year payment, the 30-year option mainly just adds cost without adding purchasing power.

A lower payment isn't automatically the better outcome: the extra five years of amortization means five more years of interest accruing, even though each individual payment is smaller.

05 · How should a broker help a client weigh 25 versus 30 years?

Run the actual monthly-payment and total-interest numbers side by side for the client's specific loan amount and rate — the gap is easier to see in dollars than as an abstract concept. See GDS and TDS, worked for how a longer amortization also affects the qualifying ratios on a file. Files that hinge on this eligibility test are exactly where Treadstone's underwriting support earns its keep, confirming first-time-buyer or new-build status cleanly before the file goes to the insurer.

It's also worth flagging that a client isn't locked into 30 years just because they qualify for it — nothing stops a first-time buyer from choosing a 25-year amortization and the lower total interest that comes with it, if their budget can support the higher payment. The 30-year option is an eligibility door opened wider, not an obligation to walk through it.

Eligibility confirmed before the insurer sees it

Get the first-time-buyer test right the first time.

Treadstone's underwriting support confirms first-time-buyer and new-build eligibility cleanly before a file goes to the mortgage insurer, so a 30-year amortization request doesn't bounce back.

Frequently asked questions

This article is general information to help you scale — not a substitute for tailored advice on your specific business, licensing, or compliance obligations. All figures are illustrative examples for planning purposes; actual costs vary by province, market, and brokerage.

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