Mortgages & Housing

Housing Budget Affordability

Estimate a payment budget under two user-selected income-ratio constraints.

Your numbers

Sample inputs are illustrative. Changing currency changes labels only.

Your result

Preparing the sample calculation…

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How to use this calculator

  1. Enter gross monthly income, chosen housing ratio (%), chosen total-debt ratio (%), other monthly debt payments, monthly tax insurance and association costs.
  2. Choose a display currency, then select Calculate. Results also update after a brief pause while you edit.
  3. Read the result with the assumptions below. Export details or save a second scenario to compare your choices.

Formula and method

Housing budget=max(0,min(income×housing ratio,income×total-debt ratio−other debts)); subtract ownership costs for P&I.

Assumptions and limitations

Illustrative ratios are editable, not universal lending rules or approval criteria. No house price is inferred without loan terms.

Worked example

With gross monthly income = 6000, chosen housing ratio (%) = 28, chosen total-debt ratio (%) = 36, other monthly debt payments = 500, monthly tax insurance and association costs = 300, maximum housing budget is approximately 1660.

What the result means

Estimate a payment budget under two user-selected income-ratio constraints.

Common questions

How should I interpret maximum housing budget?

Estimate a payment budget under two user-selected income-ratio constraints.

What should I check before using this result?

Illustrative ratios are editable, not universal lending rules or approval criteria. No house price is inferred without loan terms.

Methodology and transparency

Calculation specification reviewed on 2026-10-14. Mathematical implementation is tested against independent reference fixtures. This does not imply review by a licensed financial professional. Read the testing and precision policy.