What Is the Canada Mortgage Stress Test Calculator?
The Canada Mortgage Stress Test Calculator helps you make smarter decisions about one of the biggest financial commitments of your life. Instead of guessing or spending hours on manual calculations, get accurate results in seconds. Enter your details above and let the calculator do the work.
Understanding the Canadian System
Canadian financial calculations involve federal and provincial components that interact in ways that are easy to miscalculate manually. This tool accounts for those interactions so you get an accurate picture of your real obligations and benefits.
Canada Mortgage Stress Test Calculator
How It Works
This canada mortgage stress test calculator uses established formulas to provide accurate results.
The basic rule:
- Qualifying rate = Higher of (contract rate + 2%) or 5.25%
- GDS ratio = (Mortgage + Property tax + Heating) / Gross monthly income x 100
- TDS ratio = (GDS costs + Other debts) / Gross monthly income x 100
- CMHC insurance: 4% (5-9.99% down), 3.1% (10-14.99%), 2.8% (15-19.99%)
Results are estimates. Consult a professional for critical decisions.
Frequently Asked Questions
What is the mortgage stress test?
The B-20 stress test requires borrowers to qualify at the higher of: their contract rate + 2%, or the Bank of Canada's qualifying rate (currently 5.25%). This ensures you can afford payments if rates rise.
What are the GDS and TDS limits?
GDS (Gross Debt Service) ratio must be under 39% — this includes mortgage, property tax, and heating costs. TDS (Total Debt Service) must be under 44% — this adds all other debt payments.
How much down payment do I need?
Minimum 5% for homes up to $500,000. For homes $500,000-$999,999: 5% on first $500K plus 10% on remainder. Homes $1M+ require 20% minimum. Below 20%, CMHC mortgage insurance is required.
Does the stress test apply to renewals?
The stress test only applies when obtaining a new mortgage or switching lenders. Renewing with your current lender does not require a new stress test, though some lenders may still apply it.