The mortgage stress test, explained
To get a mortgage from a federally regulated lender, you have to prove you could handle payments at a rate higher than the one you will actually pay. Here is how the test works.
The “mortgage stress test” is a federal rule that asks a simple question: if rates went up, could you still afford this mortgage? You qualify not at your actual contract rate, but at a higher minimum qualifying rate — which is why your approved amount may be smaller than today’s low rates alone would suggest.
The rule
Key facts
- You must qualify at the greater of your contract rate + 2% or 5.25%.
- It is set under OSFI Guideline B-20 and applies to federally regulated lenders (the banks).
- Insured mortgages (down payment under 20%) are subject to an equivalent minimum qualifying rate under the federal mortgage-insurance rules.
What that means in practice (2026)
With five-year fixed rates around the low-to-mid 4% range, the operative qualifying rate is roughly 6% — so the “+2%” formula is what governs, and the 5.25% floor is not the binding number right now.
Why it exists
The test builds in a cushion: it helps ensure borrowers are not stretched so thin that a normal rise in rates at renewal would put the mortgage out of reach. It protects both the borrower and the lender.
A break at renewal
Since late 2024, uninsured straight switches and renewals moved to a new federally regulated lender no longer have to be re-stress-tested — making it easier to shop your rate when your term is up, rather than staying put just to avoid re-qualifying.
Figures change
Rates here are illustrative and move frequently, and the rule itself can evolve — regulators have publicly discussed shifting toward loan-to-income limits, though the stress test remains in force as of 2026. Confirm the current rule with a licensed mortgage broker or lender for your situation.
GeoHouse is a technology company — not a licensed real estate brokerage, REALTOR®, lawyer, or financial advisor. This article is general education about how the process works in British Columbia, not advice for your specific transaction. Rules and figures change; confirm current details through the official sources linked above and consult a licensed REALTOR®, mortgage broker, lawyer, or notary before making decisions.