How Much House Can I Afford?

Affordability is not just what the lender approves—it is what you can pay comfortably without breaking your other goals. This calculator applies the industry-standard 28/36 rule: housing costs (PITI) should stay under 28% of gross monthly income, and total debt servicing (housing plus car, student, credit cards) should stay under 36%. Enter your numbers in the right-hand panel to see whether the home you are considering fits.

Inputs

Loan principal ($)Interest rate (annual %)Loan term (years)Start dateProperty tax (annual $)Home insurance (annual $)PMI (monthly $)

Your finances (for the 28/36 rule)

Gross annual income ($)Monthly debt payments ($)Down payment ($)

Results

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Monthly P&I

$2,594.39

With tax/ins/PMI

$3,369.39

Total interest

$533,981.26

Payoff date

Aug 2056

Max monthly PITI

$2,800

This home's PITI

$3,369.39

Too high

$569.39

Balance & interest over time

The 28/36 rule, simplified

28% front-end ratio — your monthly PITI (principal, interest, taxes, insurance) should not exceed 28% of your gross monthly income.
36% back-end ratio — your monthly PITI plus every other debt payment (car, student loan, credit card minimums, etc.) should not exceed 36% of your gross monthly income.

Lenders sometimes stretch to 43% on conforming loans, but stretching the rule is exactly how homeowners end up house-poor. Aim for 28–30%.

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