How Much House Can I Afford? A Salary-by-Salary Breakdown

The rule of thumb is 3 to 4 times your gross annual income, or a monthly payment that stays under 28% of what you make before taxes. That’s the textbook answer. If you live somewhere a garage alone costs more than that, fair – I get the eye-roll. But here’s the real answer: that number on your preapproval letter isn’t advice. It’s bait.

I learned this the hard way. My first house hunt, I got preapproved for $380,000 and went straight to looking at $375,000 homes, because I figured the bank had already done the math for me. It hadn’t – not the math that mattered. The bank knew my income and my credit score. It didn’t know my car had 140,000 miles on it. It didn’t know I was still paying off a degree I don’t even use anymore. It didn’t know I’m the type who goes to the dentist instead of white-knuckling a toothache because I can’t afford the bill. The bank ran a formula. I’m the one who had to actually live inside the number it spit out.

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Key takeaways

• Three to four times your gross yearly income is a safer target than your preapproval letter.
• Aim to keep housing under 28% of gross income, and total debt (including the mortgage) under 36%.
• Your down payment and interest rate can move your real budget almost as much as your salary does.
• The bank’s “yes” isn’t the same as “you should spend this much”.
• If you want more house, pay down debt or pay your down payment, and it will usually get you there faster than waiting on a raise.

How Much House Can I Afford Based on My Salary?

It is easier to get the idea from the table below. Here we compare a 30-year fixed mortgage, 20% down, a 7% interest rate, and the 28% front-end ratio. It includes principal, interest, taxes, and insurance. The table also assumes you are not already drowning in car loans and student debt.

These are guardrails; you will not get a guarantee. In some markets, they will feel generous. In others, insulting. Either way, they give you a ceiling before your emotions get involved in a deal.

What Is the 28/36 Rule?

The 28/36 rule is the closest thing to an honest benchmark in the mortgage world. Lenders have used it for decades because it works.

The 28 is your housing ratio. It means your monthly housing costs should stay under 28% of your gross income. That is not just the mortgage. It is principal, interest, taxes, insurance, and HOA fees. The first time I saw my actual monthly bill after taxes and insurance were added, I thought the lender had made a mistake. But they had not, it was me who had.

The 36 is your total debt ratio. That is housing plus every other monthly obligation. Car payment. Student loans. Credit cards. That store card you opened to get 10% off a mattress. Stay under 36%, and lenders see you as safe. Stay well under it, and you will see yourself as safe too.

Some programs stretch these to 40% or 43%. You might get approved there. That does not mean you should live there. At 40% of your income going to debt, one emergency turns into a crisis. If you want to understand how this plays out in real budgets, read our guide to the 28/36 rule.

How to Calculate It Yourself (Step by Step)

You do not need a finance degree. You need a pay stub and a calculator.

Start with gross monthly income. If you make $72,000 a year, divide these funds by 12. That number you get is $6,000 a month before taxes.

Multiply the result by 0.28: $6,000 times 0.28 equals $1,680. That is your max housing spend per month.

Estimate taxes and insurance where you want to buy. Say taxes are $300 and insurance is $150. That is $450. Subtract it from $1,680 and you have $1,230 left for principal and interest.

Run that through a mortgage calculator. At 7% over 30 years, $1,230 covers about $185,000 in principal. Add your 20% down payment and you land around $230,000. That is your real number, not what the lender preapproves you for.

Check the back-end ratio last. Add your housing cost to your other monthly debts, then divide by gross income. If you are over 36%, something has to give. Either pay something off or buy a smaller house. If you want to see the full picture, our budget calculator can show where a mortgage payment fits next to everything else.

What Affects Your House Affordability

Salary is just the opening act. Four other factors do most of the heavy lifting.

Down payment size is the big one. Twenty percent down shrinks your loan, drops your monthly payment, and kills private mortgage insurance. PMI is usually 0.3% to 1.5% of the loan per year. On a $300,000 mortgage, that is $75 to $375 every single month for nothing but the privilege of putting less down. If you are still saving, our article on saving for a down payment has strategies that actually work without eating ramen for three years.

Interest rates are the next lever. One percentage point can swing your payment by over a hundred dollars. At low rates, your money goes further. At high rates, your buying power shrinks even if your paycheck never changes. Some buyers pay points for buying down your interest rate. It costs more upfront but can pay off if you stay in the home long enough.

Existing debt is the quiet killer. That $500 car payment and $400 in student loans do not disappear when you get a mortgage. Lenders count them. You should too. I have seen friends get approved for $400,000 while carrying two car payments and $50,000 in student loans. Technically the math worked. Practically, they could not go out to dinner.

Location matters more than people admit. Property taxes swing wildly. A $300,000 house in one county can cost twice as much in taxes as the same house one county over. Always check local taxes before you fall in love with a zip code.

Here is the reality check. According to the Federal Reserve Bank of Atlanta, home ownership affordability in the U.S. dropped to near-record lows recently as prices and rates rose together. That gap between what people make and what homes cost is why so many buyers feel priced out of markets they thought they could afford.

If the Number Feels Too Low

This is the part nobody wants to hear. You run the math, stare at the table, and think, “That is it?”

You are not failing. The market is just expensive. Research from the National Association of Realtors shows that median home prices have stayed high while wages have not kept up for many workers. That is not a personal problem. It is an economic one.

So what do you do?

First, kill some debt. Paying off a credit card or finishing a car loan frees up monthly cash immediately. That directly raises how much house you can afford without waiting for a raise. If you need a plan, our debt payoff planner can help you decide what to attack first.

Second, expand your search. A twenty-minute longer commute can drop prices by 20% or more. For remote or hybrid workers, that is a no-brainer. For everyone else, it is at least worth a Saturday drive.

Third, look at first-time buyer programs. FHA loans and some state programs let you buy with less down. The tradeoff is a higher monthly payment and PMI. We break down when that makes sense in our first-time home buyer tips.

Fourth, lower your standards slightly. A fixer-upper in a decent neighborhood often builds more wealth than a turn-key house at the absolute top of your budget. Leave yourself a margin. You will need it when the fridge dies two months after closing.

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