Your Numbers

Income & debts

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$
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Max Home Price
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Max mortgage $0
Down payment used $0
Stress-tested rate 0%
Monthly payment (contract) $0
GDS ratio 0%
TDS ratio 0%
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How It Works

The two rules every Canadian lender uses

GDS — Gross Debt Service

Mortgage + property tax + heating + 50% of condo fees, divided by your gross monthly income. Max 39% for most insured mortgages.

TDS — Total Debt Service

Same as GDS, plus all your other monthly debt payments — car loans, credit cards, student loans, lines of credit. Max 44% for most insured mortgages.

The OSFI Stress Test

All federally regulated lenders qualify you at the higher of your contract rate + 2% or 5.25%. This is the test that limits most buyers. You might find a 4.5% mortgage, but you'll be qualified as if your rate were 6.5%.

This calculator builds the stress test in. The number you see is what a lender will actually approve — not a vanity number.

FAQ

Common questions

Is this number what the bank will actually approve me for?

Very close. The calculator uses the real GDS/TDS ratios and the OSFI stress test that every federally regulated Canadian lender uses. Your actual approval can be slightly higher or lower depending on your credit score, employment type (T4 vs. self-employed), and the specific lender's policies — but this number is a realistic ceiling.

Should I buy at my maximum?

Almost never. Just because a lender approves you for a certain number doesn't mean it fits your life. Most clients I work with end up buying 10–20% below their max, which leaves room for property tax increases, renovations, daycare, and the random surprises of homeownership.

What if my income is from self-employment or commission?

Lenders typically average your last two years of income from your T1 General. Self-employed and commission income often need to be discounted by 20–30% unless you can show stable history. We can connect you with a broker who specializes in non-traditional income.

Does the calculator account for property tax and heating?

Yes — we use a Toronto-area estimate (about 0.66% of home value for property tax, plus $150/month heating). If you check the condo box, we include 50% of an estimated condo fee in the GDS calculation, as lenders do.

What if I'm a first-time buyer?

The qualifying math is the same, but you may be eligible for: the FHSA (up to $40,000 tax-free), the RRSP Home Buyers' Plan (up to $60,000 per person), and LTT rebates up to $8,475 combined. None of these change your max purchase price directly, but they change how much cash you need at closing.

Want to go from estimate to actual approval?

I'll connect you with a mortgage broker I trust for a real pre-approval — usually free, no impact on your credit score, and typically takes 24–48 hours. Then we go shopping.