The old rule that you should buy a home costing three times your annual income no longer tells the whole story. Today’s affordability depends on much more than salary, including interest rates, monthly debt, your down payment and where you live.
Whether you’re earning $75,000, $100,000 or $150,000 a year, understanding these factors can help you set realistic expectations before you begin shopping for a home.
What Matters Most
- The 3x income rule is outdated. Home prices, taxes, insurance and mortgage rates vary too much for a simple formula to work.
- Debt can significantly reduce buying power. A $400 monthly car payment could lower your home budget by $50,000 to $75,000.
- Interest rates make a big difference. Even a 1% change can alter affordability by tens of thousands of dollars.
- Location matters. The same salary may buy a much different home depending on the local housing market.
- Two incomes create flexibility. A household with two $75,000 salaries often has advantages beyond matching the buying power of one person earning $150,000.
It’s About More Than Income
Mortgage lenders look at your debt-to-income (DTI) ratio, comparing your monthly debt payments to your gross monthly income. Most conventional loans prefer a DTI below 43%.
For example, someone earning $75,000 annually brings home about $6,250 per month before taxes. If $800 already goes toward student loans, a vehicle payment and credit cards, there’s less room available for a mortgage than for someone with little or no debt.
Reducing monthly debt before applying for a mortgage can improve both affordability and your chances of qualifying.
How Debt Changes Buying Power
(Based on a $100,000 annual salary)
| Debt Level | Monthly Debt | Estimated Home Price | Buying Power Impact |
| No debt | $0 | $375,000–$425,000 | Baseline |
| Moderate debt | $400 | $325,000–$375,000 | -$50,000 to -$75,000 |
| Higher debt | $800 | $275,000–$325,000 | -$100,000 to -$125,000 |
Assumes a 6.5% mortgage rate, 10% down payment and a 43% debt-to-income ratio.
What Different Salaries May Afford
$75,000 Income: A buyer earning $75,000 with moderate monthly debt and a 10% down payment may qualify for a home in the $250,000 to $290,000 range, with monthly housing costs between $1,900 and $2,200. Buyers with little debt—or those purchasing with a partner—may be able to afford more.
$150,000 Income: With minimal debt, a buyer earning $150,000 may qualify for homes in the $500,000 to $600,000 range. Households earning $200,000 or more could see affordability reach $650,000 to $800,000, depending on local market conditions.
Why Interest Rates Matter
Interest rates have a major impact on affordability.
For a $350,000 mortgage:
- 5% interest: about $2,212 per month
- 5% interest: about $1,987 per month
- 5% interest: about $2,448 per month
Even a one-percent change in rates can save—or cost—a homeowner hundreds of dollars each month and tens of thousands of dollars over the life of the loan.
The Bottom Line: Salary is only one part of the affordability equation. Your monthly debt, down payment, interest rate and local housing market all play important roles in determining what you can comfortably afford.
Before beginning your home search, review your overall financial picture. A realistic budget today can help you buy a home that fits both your needs and your long-term financial goals.
First Horizon Bank is a leading regional financial services company, dedicated to helping our clients, communities, and associates unlock their full potential with capital and counsel. It’s the powerful tools you need with the personal service you deserve. Contact First Horizon for all your banking needs.
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