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Natasha Mohr

Mortgage Basics

Understanding the Mortgage Stress Test

Published January 14, 2026

If you’ve started looking into buying a home in Canada, you’ve probably heard the term “stress test” — and wondered why you have to qualify at a rate higher than the one you’ll actually pay.

What the stress test is

The mortgage stress test requires you to qualify at the higher of either your contract rate plus 2%, or a minimum federally-set qualifying rate. This applies whether or not your mortgage is insured.

Why it exists

The stress test is designed to make sure borrowers can still afford their payments if interest rates rise, or if their circumstances change. It adds a buffer between what you technically qualify for and what you’d actually be comfortable paying.

How it affects you

In practice, it means the home price you qualify for is lower than a simple “rate × income” calculation might suggest. It can feel frustrating, but it also protects you from stretching too thin on a rate that could change at renewal.

What you can do

  • Use a realistic affordability calculator that applies the stress test, not a rough online estimate.
  • Factor in property tax, heating, and (if applicable) condo fees — they count toward your qualifying ratios.
  • Talk to a broker who can shop your situation across multiple lenders, since qualifying criteria do vary.

Stress test rules are set federally and can change. If you want the current numbers applied to your specific situation, let’s talk it through together.

Have a question about your specific situation?

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