How Much House Can You Afford?
Understand why a lender’s maximum and your comfortable housing budget may differ.
Start with sustainable monthly cash flow
A home affordability estimate often considers gross monthly income, existing debt payments and a chosen debt-to-income ratio. The calculation is only a starting point; lenders apply their own underwriting criteria and verify documents.
Account for the costs outside your mortgage payment
Property tax, insurance, maintenance, utilities, HOA dues and unexpected repairs all affect the budget. A low principal-and-interest payment does not make those items disappear. Closing costs and the down payment use cash that cannot also serve as an emergency reserve.
Test several price and rate combinations
Compare a lower-priced home with a smaller down payment against a more expensive property. Stress-test an interest rate change, even if you expect to obtain a fixed-rate loan, while shopping.
- Do not confuse preapproval with affordability.
- Hold space in the budget for saving and routine living costs.
- Ask lenders for a complete written cost breakdown.
Further reading and primary sources
These external references explain related financial concepts and rules. They do not verify your personal calculation.