How Much House Can You Actually Afford? Beyond the Monthly Payment
Learn how lenders calculate your home affordability using DTI ratios and what you should consider before taking on a mortgage.
The Golden Rule of 28/36
When you start browsing homes, it's easy to fall in love with a property that's technically "within your budget" but practically leaves you house-poor. Lenders typically use two specific ratios to decide how much they are willing to lend you.
The Front-End Ratio (28%)
This is the percentage of your gross monthly income that goes toward your housing costs (Principal, Interest, Taxes, and Insurance - PITI). Lenders generally prefer this to be below 28%.
The Back-End Ratio (36%)
This is your Debt-to-Income (DTI) ratio. It includes your housing costs PLUS all other monthly debt obligations, like car loans, student loans, and credit card payments. Lenders typically look for a DTI of 36% or lower, though some programs allow for higher.
Factors That Influence Your Budget
- Your Down Payment: A larger down payment reduces your loan amount and monthly interest, potentially increasing the price of the house you can afford.
- Interest Rates: Even a 0.5% change in interest rates can shift your buying power by tens of thousands of dollars.
- Property Taxes: These vary wildly by location and can add several hundred dollars to your monthly obligation.
Before You Visit an Open House
Knowing your numbers before you fall in love with a home is essential. Use our Home Affordability Calculator to see an estimate of your maximum purchase price based on your current income and debts.
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