How to use this calculator
Income mode uses editable 28% housing and 36% total-debt ceilings as illustrative US-style starting assumptions. Budget mode uses the monthly housing amount you enter. Both include taxes, insurance, maintenance and fees. The displayed range compares 90% and 100% of the selected budget; maintenance is included in the conservative planning ratio.
- Enter affordability mode, annual gross household income, preferred monthly housing budget and review the remaining options.
- Select Calculate or change a value to update the result. Read the result label and units before copying.
- Use Reset to restore the worked starting values.
Formula and method
Ratios are not global lending rules or approval promises. Lenders assess credit, local law, income documentation and underwriting. Fixed-rate monthly payments are assumed. Closing costs, mortgage insurance, rate changes and transaction taxes are excluded; add local costs before deciding.
Worked example
With a zero-interest 30-year loan, a 50,000 down payment, a 2,000 monthly budget and no additional costs, the modeled maximum price is 770,000: 720,000 in principal plus the down payment.
Questions about house affordability calculator
How much house can I afford on my income?
Choose income mode to compare housing and total-debt ceilings, or budget mode if you know your monthly limit. Include recurring taxes, insurance, maintenance and fees. The price range is a scenario estimate, not lender approval.
What assumptions should I check?
Ratios are not global lending rules or approval promises. Lenders assess credit, local law, income documentation and underwriting. Fixed-rate monthly payments are assumed. Closing costs, mortgage insurance, rate changes and transaction taxes are excluded; add local costs before deciding.
Are my inputs saved?
Calculations run in your browser. We store only tool IDs for favorites and recent tools. Sharing inputs in links is disabled for this category.
Financial tools model the assumptions shown above and do not predict actual returns or replace lender disclosures or professional advice. Amounts are currency-neutral: use the same currency for every amount. No exchange rate is applied.