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Home CalculatorsHome Affordability Calculator

Home Affordability Calculator with clear assumptions.

Work backward from a monthly housing budget while keeping non-mortgage costs visible.

How the estimate works

The calculator applies the selected total debt ratio to gross income, subtracts existing debts and non-mortgage housing costs, then converts the remaining payment into a loan amount.

Important limitation

This is not a preapproval. Credit, reserves, loan programs, property costs, and lender underwriting can produce a different result. Results are estimates only and are not financial, lending, legal, tax, or investment advice.

Assumptions and review

Formula review: July 29, 2026. This tool uses only the editable values shown above and does not pull live rates, prices, balances, or account data.

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Frequently asked questions

How does the home affordability calculator work?

The calculator applies the selected total debt ratio to gross income, subtracts existing debts and non-mortgage housing costs, then converts the remaining payment into a loan amount.

Is this home affordability calculator exact?

No. It is a planning estimate based on the values you enter. Actual rates, fees, timing, taxes, and provider rules can change the result.

Can I change the assumptions?

Yes. Every displayed input is editable so you can compare scenarios instead of relying on a hidden default.