Mortgage Affordability Calculator
Estimate the maximum home price you can afford from income, debts, down payment, rate, property tax and insurance using 28/36 debt-to-income rules.
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About Mortgage Affordability Calculator
Find out how much house you can afford. Lenders commonly cap housing costs at 28% of gross income and total debt at 36%. Enter your income, monthly debts, down payment and loan details to see your maximum housing payment, loan amount and home price.
How to use Mortgage Affordability Calculator
- Enter gross household income and other monthly debt payments.
- Enter your down payment, mortgage rate and loan term.
- Adjust property tax, insurance and DTI limits to match your lender and area.
Key features
- 28/36 debt-to-income limits (adjustable)
- Property tax and insurance included in PITI
- Solves for maximum loan and price
- Works for any rate and term
- Runs in your browser
Frequently asked questions
- What is the 28/36 rule?
- Housing costs (principal, interest, taxes, insurance) should be at most 28% of gross monthly income, and all debt payments including housing at most 36%.
- Why is my affordable price lower than expected?
- The smaller of the two limits applies. Existing debts reduce the 36% limit, and property tax and insurance use up part of the payment.
- Does this include PMI or HOA fees?
- No. If you will pay PMI or HOA dues, add them to other monthly debts to account for them.
- Can lenders approve higher ratios?
- Yes. FHA and some conventional programs allow total DTI above 43–50% with strong credit or reserves.
- Is my data private?
- Yes. Everything is calculated in your browser.
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