How Much House Can I Afford? A Realistic Framework

The question every prospective homebuyer asks is deceptively simple: how much house can I afford? The answer your lender gives you and the answer your budget gives you may be two very different numbers. Just because you qualify for a $500,000 mortgage does not mean you should take one. This guide helps you build a realistic framework for determining the right home price for your financial situation.

The 28/36 Rule: A Starting Point

Financial experts and most lenders use the 28/36 rule as a baseline for affordability:

• 28% rule: Your total housing costs (mortgage payment, property taxes, insurance, and HOA fees) should not exceed 28% of your gross monthly income.
• 36% rule: Your total monthly debt payments (housing costs plus car loans, student loans, credit cards, and other debts) should not exceed 36% of your gross monthly income.

For example, if your household earns $8,000 per month before taxes, the 28% rule suggests your housing costs should stay at or below $2,240. If you have $400 per month in other debt payments, the 36% rule caps your total debt at $2,880, leaving $2,480 for housing — which is close to the $2,240 figure.

What Lenders Actually Look At

While the 28/36 rule is a useful guideline, lenders evaluate your borrowing capacity using a combination of factors:

• Debt-to-income ratio (DTI): Most conventional lenders prefer a DTI of 43% or less, though some programs allow up to 50%. FHA loans are generally more flexible.
• Credit score: Your score directly affects the rate you are offered. A higher score means a lower rate, which means you can afford more house for the same monthly payment.
• Down payment: A larger down payment reduces your loan amount, lowers your monthly payment, and may eliminate the need for mortgage insurance.
• Employment and income stability: Lenders want to see at least two years of steady employment. Self-employed borrowers may need to provide additional documentation.
• Cash reserves: Having several months of mortgage payments in savings reassures lenders that you can handle temporary financial disruptions.

Beyond the Mortgage Payment: True Cost of Homeownership

Your mortgage payment is only one component of the cost of owning a home. A realistic budget must account for:

• Property taxes: These vary widely by location. In some areas, annual property taxes can exceed $10,000 on a moderately priced home.
• Homeowners insurance: Expect to pay $1,000 to $3,000 or more per year, depending on location, home value, and coverage.
• Private mortgage insurance (PMI): Required if your down payment is less than 20% on a conventional loan, typically $50 to $200 per month per $100,000 borrowed.
• HOA fees: If applicable, these can range from $100 to $500 or more per month.
• Maintenance and repairs: Budget 1% to 2% of your home's value per year for upkeep. On a $350,000 home, that is $3,500 to $7,000 annually.
• Utilities: Moving from an apartment to a house often means higher utility bills for heating, cooling, water, and trash collection.

A Practical Budgeting Framework

Rather than starting with the maximum you can borrow, start with your actual monthly budget:

1. Calculate your net monthly income — your take-home pay after taxes, retirement contributions, and health insurance.
2. Subtract all non-housing expenses — groceries, transportation, childcare, insurance, subscriptions, savings goals, and discretionary spending.
3. The remaining amount is what you can comfortably allocate to housing without sacrificing your quality of life or financial goals.
4. Work backward from that number to determine the home price you can afford, factoring in taxes, insurance, and any PMI.

This approach often yields a more conservative — and more sustainable — number than the 28/36 rule. And that is the point. Being house-poor, where your mortgage consumes so much of your income that you cannot save, invest, or enjoy life, is a trap many buyers fall into by borrowing the maximum they qualify for.

How Interest Rates Affect Affordability

Interest rates have a dramatic impact on how much house you can afford. On a 30-year fixed-rate mortgage:

• At 6%, a $2,000 monthly payment (principal and interest) supports roughly a $333,000 loan.
• At 7%, the same $2,000 payment supports roughly a $300,000 loan.
• At 8%, it drops to about $272,000.

A 2% increase in rates reduces your purchasing power by roughly 18% to 20%. This is why timing, rate shopping, and considering mortgage points to buy down your rate can be so valuable.

Want to run your own numbers? Use the mortgage calculator at Home Financial Group to see how different home prices, down payments, and rates affect your monthly payment. When you are ready for a personalized pre-approval, the team is ready to help.