House Affordability Calculator

Estimate a home-price budget from income, existing debt, carrying costs and an available down payment.

Estimated home price budget$319,465.74
USD / month

0.01 – 10000000000

USD

0 – 10000000000

%

0 – 100

%

0 – 100

USD

0 – 10000000000

USD

0 – 10000000000

%

0 – 100

years

1 – 50

Estimated home price budget

$319,465.74

  • Mortgage principal budget$259,465.74
  • Monthly principal and interest$1,640.00
  • Total housing budget$2,240.00
  • Down payment$60,000.00

The caps are editable planning assumptions, not approval thresholds. Keep closing costs and reserves separate from the down payment.

How this was calculated

Housing budget = smaller of the housing-income cap and total-debt cap less existing debt.

Principal-and-interest budget = housing budget − monthly carrying costs.

Loan amount = payment budget ÷ monthly payment per dollar borrowed.

How house affordability is calculated

Take the smaller housing budget allowed by your two editable income ratios. Subtract property costs, then convert the remaining principal-and-interest payment into a loan balance. Add the down payment; keep closing costs outside it.

Worked example

At $10,000 monthly income, a 30% housing cap, no other debt, $500 monthly carrying costs, 0% interest and ten years, $2,500 per month supports $300,000 borrowed. A $20,000 down payment gives a $320,000 budget.

References

Frequently asked questions

Why does the result differ from the mortgage calculator’s budget mode?

This page derives the housing budget from income and debt assumptions. Mortgage budget mode starts with a housing payment you already chose. Neither is a lending decision.

Last updated . Results are estimates for informational purposes only.