Canadian Mortgage Stress Test Calculator 2026

The stress test is a federal qualification rule, not a rate you pay. Lenders must approve you at the greater of your contract rate plus two percent or 5.25% — the minimum qualifying rate. You make payments at your actual rate; the higher rate exists only to prove you could still afford the mortgage if rates rose during your term.

It applies through two debt-service ratios. Gross debt service is your housing costs — mortgage payment at the qualifying rate, property tax, heating, and half of any condo fees — as a share of gross income, generally capped around 39%. Total debt service adds every other monthly obligation, including car payments, credit card minimums and student loans, and is generally capped around 44%. Whichever ratio binds first is the one setting your maximum.

Where it applies has narrowed. It still governs purchases and refinances at federally regulated lenders. It does not apply to renewing with your existing lender, and since 21 November 2024 it no longer applies to a straight switch either — moving your existing balance and amortization to a new lender without increasing either. Insured borrowers were already exempt from that. Note that the exemption removes the regulatory requirement, not the lender's discretion: some institutions still apply a stress test of their own on switches.

Provincially regulated credit unions are not bound by the federal rule and set their own qualification policies, which is one reason a decline from a bank is not the end of the process. B lenders apply the test with more flexible ratio and income rules, and private lenders underwrite the property rather than the ratios.