The Canadian mortgage stress test requires lenders to qualify borrowers at a higher rate than the actual contract rate. As of 2026, the qualifying rate is the greater of the contract rate plus 2 percentage points, or the 5.25% floor. OSFI confirmed in January 2026 that the floor stays unchanged. With typical 5-year fixed rates around 4.0-4.3%, most borrowers qualify at approximately 6.0-6.3% — well above the 5.25% floor.
Quick answer: Lenders qualify you at your contract rate plus 2%, or 5.25%, whichever is higher. Your debt service ratios (GDS 39%, TDS 44%) are then calculated using that qualifying rate, not your actual mortgage rate.
What this means: The qualifying rate determines the maximum mortgage you can be approved for, but your monthly payment is based on the actual contract rate. The stress test caps the loan size, not the payment.
What to do next: See exactly how much mortgage you qualify for under the current stress test rules. Run the stress test →
2026 stress test rules in one table
| Rule | 2026 value | Source |
|---|---|---|
| Qualifying rate (uninsured) | Greater of contract +2% or 5.25% | OSFI Guideline B-20 |
| Qualifying rate (insured) | Same: contract +2% or 5.25%, whichever higher | Department of Finance |
| GDS (Gross Debt Service) limit | 39% | CMHC insured / OSFI guideline |
| TDS (Total Debt Service) limit | 44% | CMHC insured / OSFI guideline |
| Stress test on lender switch at renewal | Not required since Nov 21, 2024 | OSFI |
| Maximum insured property price | $1.5 million | Department of Finance (Dec 15, 2024) |
How the stress test is applied
- Lender quotes your contract rate. For example, 4.29% on a 5-year fixed.
- Lender calculates the qualifying rate. 4.29% + 2% = 6.29%. Since this is above 5.25%, the qualifying rate is 6.29%.
- Lender computes your debt service ratios at the qualifying rate. GDS is housing costs (mortgage payment at the qualifying rate, property tax, heat, 50% of condo fees) divided by gross income. TDS adds all other debt obligations to the numerator.
- Lender compares those ratios to the limits. 39% GDS, 44% TDS. If you exceed either limit, the maximum mortgage amount is reduced.
- Approved mortgage uses the contract rate, not the qualifying rate. Your actual monthly payment is based on the 4.29% contract rate.
Who the stress test affects
- All federally regulated lender mortgages (the big banks, most credit unions, monoline lenders). This is the majority of Canadian mortgages.
- Insured (CMHC) mortgages. Down payment less than 20%.
- Uninsured mortgages with 20%+ down. Federally regulated lenders still apply the OSFI test.
Provincially regulated credit unions may have different rules in some provinces. Private lenders typically do not apply the OSFI stress test, but their rates are substantially higher.
The November 2024 renewal change
Effective November 21, 2024, borrowers with uninsured mortgages can switch lenders at renewal without re-qualifying under the stress test, as long as the loan amount and amortization remain the same. This was a meaningful change because it removed a barrier that had been keeping renewing borrowers from shopping the renewal market.
The change does not apply if you want to: increase the mortgage amount, lengthen the amortization, or change the property. In those cases, the stress test still applies.
Worked example: how much home can you buy?
Sara and Tom have $130,000 combined income, $50,000 down payment, and no other debts. They are looking at a 5-year fixed at 4.29%.
| Item | Value |
|---|---|
| Gross monthly income | $10,833 |
| GDS limit (39%) | $4,225 in housing costs |
| Property tax (estimated) | $350/mo |
| Heat (estimated) | $150/mo |
| Available for mortgage payment | $3,725 |
| Qualifying rate (4.29% + 2%) | 6.29% |
| Maximum mortgage at qualifying rate (25-year amortization) | ~$574,000 |
| Plus $50,000 down payment | ~$624,000 max home price |
| Actual monthly payment at 4.29% contract rate | ~$3,118 |
Without the stress test, they would qualify for $612,000 mortgage and roughly $662,000 home price — about 6% more. With the test, they qualify for less but their actual monthly payment ($3,118) is well below the GDS-limited monthly housing cost ($4,225), providing a buffer if rates rise at renewal.
How to qualify for more under the stress test
- Pay down credit card and line of credit balances. These hit your TDS ratio harder than mortgage payments because the entire balance is counted.
- Extend amortization (if eligible). A 30-year amortization (first-time buyer or new construction) reduces the qualifying payment by about 10%, freeing room in GDS.
- Larger down payment. Increases the home price you can afford for a given mortgage size.
- Add a co-applicant. A second income increases the GDS / TDS denominator.
- Wait for rates to fall. A 1% drop in the contract rate cuts the qualifying rate by 1%, which can mean $40,000+ more in mortgage approval at the same income.
Frequently asked questions
- What is the mortgage stress test rate in 2026?
- The greater of your contract rate plus 2%, or 5.25%. With contract rates around 4.0-4.3%, most borrowers qualify at 6.0-6.3%.
- Does the stress test apply at mortgage renewal?
- Since November 21, 2024, borrowers can switch lenders at renewal without re-qualifying, as long as loan amount and amortization stay the same.
- What are the GDS and TDS limits?
- 39% for Gross Debt Service and 44% for Total Debt Service, calculated at the qualifying rate.
- Who is exempt from the stress test?
- Borrowers using private lenders (not federally regulated) and some provincially regulated credit unions. Almost all mainstream lenders apply the test.
- Does the stress test affect my monthly payment?
- No. Your actual monthly payment is based on your contract rate. The stress test only caps the maximum loan size you can be approved for.
- Can I avoid the stress test by lowering my mortgage?
- The test always applies, but borrowing a smaller amount makes the GDS / TDS ratios easier to satisfy. If your numbers are tight, requesting less mortgage is one solution.
- Is the stress test going to be removed?
- OSFI confirmed in January 2026 that the test stays unchanged. There is no announcement of removal or relaxation.