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Find out the maximum home price you can qualify for in Canada — with the OSFI stress test, GDS and TDS ratios, and CMHC insurance all factored in. No guesswork.
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| Mortgage Payment (P+I) | — |
| Property Tax | — |
| Heating | — |
| Total Housing Costs (GDS) | — |
Canadian lenders qualify you at the stress test rate — the higher of your contract rate plus 2%, or 5.25%. Even if you lock in at 5.24%, you must prove you can afford payments at 7.24%. This ensures borrowers can handle future rate increases without defaulting.
Your maximum mortgage is limited by whichever ratio hits its ceiling first — GDS at 39% of gross income or TDS at 44%. High existing debts (car loans, student loans) significantly tighten the TDS constraint, reducing purchasing power far more than most buyers expect.
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A household earning $140,000 a year with $500 in monthly debts and a 20% down payment can usually qualify for a home price of about $700,000 in Canada. The exact figure depends on the interest rate, property taxes, heating and your debts.
Lenders cap your housing costs (GDS) at about 39% of gross income and all debts (TDS) at about 44%. They also test you at the higher of your contract rate plus 2 percentage points or 5.25% (the stress test). This calculator applies those limits to your income, debts and down payment and shows the strongest result you would likely qualify for.
Reviewed November 2026 by the mortgage team at Top Mortgages Inc. Figures are estimates for general information. They are not a quote, an approval or financial advice, and lenders set their own final terms.
With no other debts and a 20% down payment, a $100,000 household income typically supports a mortgage of roughly $380,000 to $420,000 under the stress test. Debts, rate and property taxes move that number.
Gross Debt Service (GDS) is housing costs divided by gross income, usually capped near 39%. Total Debt Service (TDS) adds all other debt payments and is capped near 44%.
You must qualify at the greater of your contract rate plus 2% or 5.25%. It makes sure you could still afford the payment if rates rise.
Yes. It lowers the mortgage and the payment you must qualify for. With under 20% down you also pay CMHC insurance, which is added to the mortgage.
A calculator gives an estimate. A licensed mortgage professional can tell you what you actually qualify for, at no cost, and your credit is not checked to start.
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