The Mortgage Stress Test Explained (2026 Edition)

What Is the Stress Test?

Canada's mortgage stress test requires lenders to qualify you at a rate higher than the rate you'll actually pay. The goal: ensure you could still afford your payments if rates rose. Even if you're renewing with your existing lender, you must pass it.

The 2026 Stress Test Rate

You qualify at whichever is higher:

• Your contract rate + 2%, or
• 5.25% (the regulatory floor set by OSFI)

Example: if your lender offers 5.0%, you're tested at 7.0% (5.0% + 2%). If your lender offers 3.0%, you're tested at 5.25% (the floor applies).

How It Reduces Your Buying Power

The stress test effectively reduces what you can borrow by roughly 15–20%. Here's a concrete example:

Income	Without Stress Test	With Stress Test
$120,000/yr	~$640,000	~$530,000
$150,000/yr	~$800,000	~$660,000
$200,000/yr	~$1,060,000	~$875,000

Estimates based on 25-year amortization, 20% down, GDS ≤ 39%. Actual approval depends on full application details.

GDS and TDS Ratios

Lenders also look at two debt ratios, calculated at the stress test rate:

• GDS (Gross Debt Service): Housing costs ÷ gross income ≤ 39%
• TDS (Total Debt Service): All debt payments ÷ gross income ≤ 44%

Housing costs = mortgage + property tax + heat + 50% of condo fees (if applicable).

Does the Stress Test Apply to Renewals?

Since 2023, the stress test applies to uninsured mortgage renewals when switching lenders. Staying with your existing lender? The stress test generally does not apply at renewal — a significant advantage of loyalty.

How to Improve Your Stress Test Result

• Increase your down payment (reduces the mortgage amount you need to qualify)
• Pay down existing debt to improve TDS ratio
• Add a co-borrower's income
• Extend amortization to 30 years (available on insured mortgages for first-time buyers of new builds)

Use our mortgage qualifier calculator to see exactly what you'd qualify for under the stress test.