Mortgage Affordability Calculator

Estimate a planning-level home price from income, debts, down payment and loan assumptions.

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With monthly gross income ofmonthly debts ofanddown at% foryears, what home price fits the estimate?

Uses illustrative 28% housing and 36% total-debt ratios. Taxes, insurance, HOA fees, mortgage insurance and lender rules are not included, so real affordability may be lower.

Estimated home price
Planning estimate — not lender qualification
Housing payment limit
Estimated max mortgage
Back-end DTI
Down payment

How this affordability estimate works

The calculator takes the lower of two illustrative limits: 28% of gross monthly income for housing, or 36% of income for total monthly debt after subtracting existing recurring debts. It then converts that payment limit into a mortgage principal.

Important limitationThe payment limit here represents principal and interest only. Real housing costs often include taxes, insurance, HOA fees and mortgage insurance.

Planning estimate vs lender approval

Lenders use their own underwriting rules, credit criteria, debt definitions, rate assumptions and required reserves. Treat this result as a scenario tool rather than an approval amount.

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Common questions

What are the 28% and 36% ratios?

They are common illustrative budgeting guidelines: housing near 28% of gross income and total monthly debt near 36%. They are not universal lending limits.

Why could a lender approve a different amount?

Actual qualification can consider credit, taxes, insurance, loan type, reserves, other obligations and lender-specific debt-to-income limits.