Home / Mortgage Affordability Calculator / How Much House Can I Afford in Ontario?
How Much House Can I Afford in Ontario?
Estimate an illustrative home price from income, debts, rate and down payment.
Use the calculator
Enter your own assumptions in the related tool. This page explains what to consider before interpreting the result.
Open Mortgage Affordability Calculator →What to consider
Start with the numbers you actually know. For income questions, distinguish gross pay from net pay. For borrowing questions, consider the rate, term, fees, taxes and insurance that apply to your situation. For savings questions, treat the rate of return as an assumption rather than a guarantee.
For Canadian tax, payroll, registered-account and lending questions, rules can change and personal circumstances matter. Use official government, employer, lender or account records to confirm important figures.
GDS 32% and TDS 40%, in dollars
Canadian lenders cap housing with two ratios. Gross Debt Service (GDS) limits housing costs to 32% of gross income; Total Debt Service (TDS) limits housing plus all other debts to 40%. For a $100,000 household income:
| Ratio | Annual ceiling | Monthly ceiling |
|---|---|---|
| GDS 32% (housing only) | $32,000 | $2,666.67 |
| TDS 40% (housing + all debts) | $40,000 | $3,333.33 |
With no other debts, GDS binds: $2,666.67 a month is the most a lender allows for housing on $100,000. GDS counts more than the mortgage — property tax and heating are in the numerator too, so the amount left for principal and interest is smaller.
What $2,666.67 a month supports
At a 5% rate with a 25-year amortization, that monthly budget supports a mortgage of about $456,160 — 300 payments of $2,666.67 at a 0.4167% monthly rate discount back to roughly that principal. Rates move the number fast: at 4% the same payment supports roughly $505,000; at 6% only about $414,000. Affordability swings faster than house prices do.
From mortgage to house price
A mortgage is not the house price; the down payment closes the gap. With 20% down, the maximum price is the mortgage divided by 0.8:
| Component | Amount |
|---|---|
| Mortgage (from above) | $456,160 |
| Down payment (20%) | $114,040 |
| Estimated house price | $570,200 |
That $570,200 is a ceiling under textbook conditions — property tax, heating, and the stress test shrink the real number. Twenty percent also avoids CMHC mortgage insurance; below that, insured mortgages open with as little as 5% down, but the premium is added to the loan.
Frequently asked questions
How accurate is this how much house can i afford in ontario??
It is an educational estimate. Results depend on the assumptions you enter and may not match a payroll statement, lender decision, tax assessment or account statement.
What should I enter?
Use your own income, price, balance, rate, payment or contribution assumptions. For tax and payroll questions, verify important figures with official sources.
Can I use this for a final financial decision?
Use it as a planning tool. Confirm final amounts with the relevant employer, lender, financial institution or government source.
Does GDS include property tax and heating, or just the mortgage?
More than the mortgage: principal and interest, property tax, heating, and half of any condo fees must all fit under 32%. That is why $2,666.67 a month buys less mortgage than the headline suggests — tax and heating take their share first.
Can I borrow more if I carry no other debts?
No — GDS is the binding constraint either way. The mortgage stress test also qualifies you at the higher of 5.25% or your contract rate plus 2%, so approval is priced above the rate you actually pay.
Do I need a 20% down payment to buy in Ontario?
No. Insured mortgages allow as little as 5% down. Twenty percent matters because CMHC insurance stops being required there — otherwise the premium is added to your loan, raising the balance and the payment.