Mortgage Affordability Calculator (Canada)

Step-by-step estimate based on income, debts, down payment, and qualifying rate logic (stress test).

Inputs

Before tax income for all applicants.
Leave 0 if none.
Down payment % of estimated max price:
Used for a rough property tax estimate if left blank.
Some scenarios may require stricter limits depending on lender.
Used to build the qualifying rate.
Planning logic (not a guarantee of approval).
Car loans, student loans, etc.
We estimate a minimum payment from this balance.
If blank, we estimate by province using a simple rate.
0 if not applicable.
If blank, we use a reasonable planning default.
For planning view only (mortgage payment shown is monthly).
Housing costs / gross income.
Housing + debts / gross income.
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Results

Maximum purchase price (estimate)
$0
Monthly mortgage payment: $0 · Qualifying rate used: 0%
GDS/TDS: 0% / 0%
Tip (down payment)
Consider increasing your down payment to to target an income-based max price of about .
Note
Your down payment appears below the minimum guideline for the estimated price. This scenario may be unrealistic under standard Canadian minimum down payment rules.
BreakdownMonthly
Income (gross)$0
Other debts$0
Credit payment (est.)$0
Property tax$0
Heating$0
Condo fees$0
Max mortgage payment$0

Disclaimer: Estimate only. Lender rules vary and approvals depend on verified income, credit, and documents.

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Visual

GDS / TDS usage
GDS 0% / 39%
TDS 0% / 44%
Bars show how close your estimate is to your selected ratio limits.
Down payment:
Mortgage required (simple estimate)
Home price: $0
− Down payment: $0
+ CMHC insurance (estimate): $0
= Total mortgage required: $0
Your mortgage payment (scenario)
$0
Cash needed (simple estimate)
Down payment: $0
Closing cost reserve (2%–4% guideline): $0
= Total cash needed: $0
Monthly expenses (estimate)
Mortgage payment: $0
Property tax: $0
Condo fees: $0
Heating: $0
Debts (incl. credit min): $0
= Total monthly expenses: $0

How to use

  1. Enter household income and down payment.
  2. Add debts and optional costs (tax, condo, heating) if you know them.
  3. Set contract rate and qualifying mode (stress test is common in Canada).
  4. Click Calculate to see an estimated maximum price and affordability breakdown.
  5. Open Step 3/4 to test a scenario and estimate cash needed + monthly expenses.
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Mortgage affordability basics (Canada)

Mortgage affordability is typically estimated using lending ratios like GDS and TDS, plus a qualifying rate (often a stress test). Housing costs usually include your mortgage payment, property taxes, heating, and (if applicable) condo fees. TDS adds other monthly debts.

In Canada, the qualifying rate often uses the higher of a minimum threshold or the contract rate plus an additional buffer. This calculator uses a planning approach to estimate the maximum purchase price based on your inputs — not a guaranteed approval.

If you don’t know taxes, heating, or condo fees yet, leave them blank and use the defaults as a starting point. Once you have a target area or listing, replace estimates with real numbers to refine your plan.

FAQ

What is mortgage affordability?
It’s an estimate of the home price and mortgage payment you may qualify for based on income, debts, down payment, and lending ratios.
What are GDS and TDS ratios?
GDS compares housing costs to gross income. TDS compares housing costs plus other debts to gross income. Lenders commonly use both.
Do I need property tax and condo fees to use the calculator?
No. Those fields are optional. If you leave them blank, the calculator uses reasonable estimates for planning.