Home Affordability Calculator

Estimate an affordable mortgage principal from income, debts, rate, and housing allowance.

Enter your values, then select the button.
Home Affordability Calculator method
Maximum debt payment - other debt - housing costs.

How to use the home affordability calculator

  1. Gross monthly income: Income before tax and deductions.
  2. Other monthly debt payments: Credit, vehicle, student, and similar debts.
  3. Maximum total debt ratio (%): Chosen maximum debt-to-income ratio.
  4. Monthly tax and insurance: Estimated property tax, insurance, HOA, and similar housing costs.
  5. Down payment: Cash applied to purchase price.
  6. Mortgage rate (%): Estimated annual fixed rate.
  7. Loan term (years): Mortgage term.
  8. Select the button and review the result.

Worked example

The estimate converts an available monthly principal-and-interest payment into a loan amount.

Method and limitations

Maximum debt payment - other debt - housing costs.

Lenders apply detailed income, credit, reserve, insurance, and property rules.

Common questions

Why might another result be different?

Inputs, rounding, policies, rates, and assumptions can differ. Compare like-for-like values and use current official information when a rate or rule can change.

Does NidXee save my entries?

No. The calculation runs in your browser. Reloading or closing the page may clear it.