How Much House Can I Afford?

DTI rules of thumb, APR impact, and ways to expand your budget safely.

Open the home affordability calculator

Updated 2025-08-09

The DTI rule of thumb

Lenders often start with 36% total debt‑to‑income (DTI). That’s housing + other monthly debts divided by gross income.

Other key factors

  • APR: lower rates raise affordability.
  • Term: longer terms lower the payment, but increase total interest.
  • Down payment: improves affordability and may remove PMI.

Use the calculator

Test different incomes, debts, and down payments to see an estimated max price.

FAQ

What DTI do lenders use?
Commonly 36% for total debts as a starting point, but programs vary.
How big should my down payment be?
20% avoids PMI, but many buyers use 3–10%. Keep an emergency fund.

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