Quick answer
What this means in practice
Canada's mortgage stress test asks whether a borrower could carry the mortgage at a qualifying rate above the contract rate. For uninsured mortgages at federally regulated lenders, OSFI's current minimum qualifying rate is the greater of 5.25% or the contract rate plus 2 percentage points.
Key takeaways
- The qualifying rate is generally the greater of 5.25% or the contract rate plus 2 percentage points for uninsured mortgages at federally regulated lenders.
- The stress-test payment is a qualification calculation, not the borrower's contractual payment.
- An eligible uninsured straight switch can be exempt from OSFI's prescribed MQR, but the new lender still underwrites the application.
- Refinancing or increasing the amortization is not the same as a straight switch.
The qualifying payment is used in the lender's debt-service review; it is not the payment charged under the mortgage. Rules differ for new purchases, refinances, renewals, insured mortgages, and qualifying straight switches, so the transaction type matters.
How the qualifying-rate calculation works
For an uninsured mortgage subject to OSFI's prescribed minimum qualifying rate, compare 5.25% with the offered contract rate plus 2 percentage points and use the higher figure. The lender calculates a qualifying housing payment at that rate and includes it in the debt-service analysis.
The actual mortgage payment still follows the contract rate and product terms. Approval also depends on verified income, other debts, credit, down payment, property, and the lender's own underwriting policy.
How it affects buying power
Qualifying at a rate above the contract rate increases the payment used in the lender's ratios, which can reduce the maximum mortgage compared with a contract-rate-only calculation. The impact is not a fixed percentage. It changes with income, debts, taxes, heating costs, condominium fees, amortization, and the offered rate.
Use a document-backed pre-approval for a working range, then leave room for property-specific costs and future payment changes.
Purchases, refinances, and renewals
A new purchase or refinance is normally underwritten under the applicable current rules. A renewal with the same lender and no material change is different from a new advance, although the lender can still review the account and offer its own terms.
Increasing the loan, taking out equity, or extending the remaining amortization turns the request into more than a simple transfer and can change the qualification treatment.
The uninsured straight-switch exception
OSFI no longer prescribes its MQR for an eligible uninsured stand-alone mortgage transferred between federally regulated institutions when neither the loan amount nor the remaining contractual amortization is increased. OSFI calls this an uninsured straight switch. A limited increase may be permitted for transaction costs under the published rule.
This is not automatic approval. The receiving lender must still perform prudent underwriting and can apply its own policy, documentation, and pricing requirements.
Alternative and provincially regulated lenders
Not every lender is governed by the same federal rule, but that does not mean qualification is absent. Credit unions, alternative lenders, and private lenders apply their own policies, risk limits, rates, and fees within the regulatory framework that applies to them.
Compare total cost and risk rather than choosing a lender solely because its qualifying method produces a larger amount.
Ways to strengthen qualification
- Reduce recurring debt payments before applying
- Verify all income the lender may use
- Increase the down payment where practical
- Avoid new credit commitments before closing
- Compare amortization and term options that genuinely fit the budget
- Keep a cash reserve instead of borrowing to the maximum approval
- Recheck the numbers when the property taxes or condo fees become known
A simple qualifying-rate example
If a hypothetical uninsured mortgage has a contract rate of 4.60%, contract rate plus 2 percentage points is 6.60%. Because 6.60% is higher than the 5.25% floor, the lender would use 6.60% for the qualifying-payment calculation when OSFI's MQR applies. The borrower would still make payments based on the 4.60% contract rate.
This example isolates the rate test only. The actual maximum mortgage still depends on verified income, debts, property costs, amortization, and lender policy.
