Mortgage Guide
What the federal mortgage stress test is, how the qualifying rate is set, how it shrinks your maximum mortgage, and when you no longer have to pass it at renewal.
If you have been pre-approved for less than you expected, the mortgage stress test is usually why. It is one of the least understood rules in Canadian lending, and much of what is written about it online is out of date. This guide explains what the rule is, who sets it, how it changed at renewal in late 2024, and what you can actually do about it. Everything here is drawn from OSFI, the Financial Consumer Agency of Canada (FCAC), CMHC and the Department of Finance.
The mortgage stress test is a rule that makes you qualify for a mortgage at a higher interest rate than the one in your contract. Federally regulated lenders must use the higher of 5.25% or your contract rate plus 2%, according to the Financial Consumer Agency of Canada.
You don't pay the qualifying rate. Your payments are based on the rate you negotiate. The qualifying rate is only used to check that you could still afford the payments if things got harder.
OSFI, the federal regulator of banks, describes the purpose on its minimum qualifying rate page: it helps borrowers "continue to make mortgage payments even if they experience negative financial shocks such as a reduction in income, an increase in household expenses, or an increase in mortgage interest rates."
OSFI calls the uninsured version the minimum qualifying rate (MQR). It has two parts:
OSFI reviews both parts at least once a year. As of October 2026, its page lists the rule as "the greater of the mortgage contract rate plus 2% or 5.25%." OSFI has also said it will consider whether a prescribed MQR is still needed once its loan-to-income limits on lenders' portfolios are fully in place. Check the OSFI page for the current rule before you rely on it.
| Your contract rate | Contract rate + 2% | Floor | You qualify at |
|---|---|---|---|
| Example A: 3.00% | 5.00% | 5.25% | 5.25% (floor wins) |
| Example B: 4.00% | 6.00% | 5.25% | 6.00% (buffer wins) |
These are made-up rates to show the mechanics. They are not current offers, and we don't predict where rates will go.
Yes. FCAC says banks must use the same qualifying rate for both insured and uninsured mortgages: the higher of 5.25% or the contract rate plus 2%. For uninsured mortgages, the rule is set by OSFI in Guideline B-20. The FCAC page Preparing to get a mortgage states it plainly: banks must use the higher of 5.25% or the rate you negotiate plus 2%.
If your down payment is under 20%, your mortgage needs default insurance, and the federal insurance rules require you to qualify at the stress-test rate. Our guide to insured vs uninsured mortgages explains the difference.
OSFI's rule applies to federally regulated lenders. BC credit unions are provincially regulated, so their qualifying policies for uninsured mortgages can differ. Insured mortgages follow the federal insurance rules wherever you borrow. Ask your broker how a specific lender qualifies you.
The qualifying rate feeds into two ratios that decide how much you can borrow. CMHC's general requirements for insured mortgages set them out:
Here is the key point. The "principal and interest" in those ratios is calculated at the qualifying rate, not your contract rate. A higher qualifying rate means a higher notional payment, which uses up more of your 39% and 44%. That is how the stress test lowers your maximum mortgage. In Richmond and Vancouver, where prices are high relative to incomes, it is often the deciding factor.
Run our affordability calculator twice: once with your expected contract rate and once with the qualifying rate. The gap between the two maximum prices is the stress test at work. For a rough sense of income versus loan size, see how much income you need for a $1 million mortgage.
This is the part most articles still get wrong. Two changes in late 2024 mean many renewing borrowers no longer face a fresh stress test:
So the honest answer to "Do I have to pass the stress test again when I renew?" is: Not if you stay with your lender, and not for a straight switch. Since November 21, 2024, OSFI no longer prescribes the qualifying rate for uninsured straight switches between federally regulated lenders, and the Canadian Mortgage Charter lets insured borrowers switch lenders at renewal without another stress test. Adding money or stretching the amortization makes it a new qualification. If renewal is coming up, see our mortgage renewal page.
You can improve your result by lowering other monthly debt payments, increasing your down payment, adding a qualified co-borrower, or choosing a less expensive home. The qualifying rate itself is fixed by the rules, so the levers are your income, debts and the loan amount.
Blue Sky Mortgage Group is a licensed BCFSA mortgage brokerage in Richmond. We can run your file through the qualifying maths before you write an offer. Call 778-991-3289 or get in touch.
The mortgage stress test is a rule that makes you qualify for a mortgage at a higher interest rate than the one in your contract. Federally regulated lenders must use the higher of 5.25% or your contract rate plus 2%, according to the Financial Consumer Agency of Canada.
Yes. FCAC says banks must use the same qualifying rate for both insured and uninsured mortgages: the higher of 5.25% or the contract rate plus 2%. For uninsured mortgages, the rule is set by OSFI in Guideline B-20.
Not if you stay with your lender, and not for a straight switch. Since November 21, 2024, OSFI no longer prescribes the qualifying rate for uninsured straight switches between federally regulated lenders, and the Canadian Mortgage Charter lets insured borrowers switch lenders at renewal without another stress test.
OSFI's rule applies to federally regulated lenders. BC credit unions are provincially regulated, so their qualifying policies for uninsured mortgages can differ. Insured mortgages follow the federal insurance rules wherever you borrow. Ask your broker how a specific lender qualifies you.
You can improve your result by lowering other monthly debt payments, increasing your down payment, adding a qualified co-borrower, or choosing a less expensive home. The qualifying rate itself is fixed by the rules, so the levers are your income, debts and the loan amount.
Rules as of October 2026, from OSFI, FCAC, CMHC and the Department of Finance Canada.
This is general information, not financial advice. Speak to a licensed mortgage professional about your situation.
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