Start with your monthly take-home pay, not your gross salary

The amount of house you can afford depends on what you actually receive in your bank account each month, not what your job listing says. If you earn $60,000 a year, your take-home is roughly $3,600 to $4,000 per month after taxes, depending on your state and deductions. That number — not the $5,000 gross — is what lenders use to decide how much you can borrow.

Most lenders follow a straightforward rule: your total monthly debt payments (mortgage, car loans, credit cards, student loans, everything) should not exceed 43% of your take-home pay. Some lenders will go up to 50% if you have a strong down payment and excellent credit, but 43% is the standard. If your take-home is $4,000 per month, you can carry about $1,720 in total monthly debt.

Your mortgage payment itself — just the house loan, not property taxes or insurance yet — should typically stay under 28% of take-home pay. That is $1,120 on a $4,000 monthly income. But the full housing cost, including property taxes, homeowners insurance, and mortgage insurance if you put down less than 20%, often runs higher.

Key Takeaways

  • Your affordable monthly payment is based on your take-home pay (what hits your bank account), not your gross salary, and lenders typically cap total debt at 43% of take-home income.
  • The mortgage payment itself should stay around 28% of take-home pay, but your full housing cost — including taxes, insurance, and mortgage insurance — is usually higher.
  • A larger down payment (20% or more) lowers your monthly payment and removes mortgage insurance, making the same house more affordable.
  • Your credit score, existing debts, and job history all affect how much a lender will offer you, even if the math says you could afford more.
  • The price you can afford to pay for a house is different from the monthly payment you can afford — use a mortgage calculator to convert between the two.

How property taxes and insurance change your real monthly cost

The mortgage payment is only part of what you pay each month. Property taxes vary dramatically by location — a house worth $300,000 might cost $200 per month in property taxes in one state and $600 in another. Homeowners insurance typically runs $100 to $200 per month depending on the house value and your location. If you put down less than 20%, you also pay mortgage insurance (called PMI), which protects the lender if you stop paying. PMI can add $150 to $400 per month.

A mortgage calculator that includes taxes and insurance will show you the real number. If you search "mortgage calculator with taxes and insurance," you can enter your state, county, and estimated home price to see what the full monthly payment actually looks like. This is more useful than the mortgage payment alone, because it is what you will actually owe.

Some lenders also require you to pay property taxes and insurance through an escrow account, meaning they collect a portion each month and pay the bills on your behalf. This protects them but does not change your total cost — it just bundles everything into one payment.

What happens if you have existing debts

If you already have car payments, student loans, or credit card balances, those count against your 43% debt limit. A $400 car payment and a $200 student loan payment eat up $600 of your $1,720 monthly debt allowance, leaving only $1,120 for a mortgage. That same $4,000 take-home income now supports a smaller house because your other debts are in the way.

Paying down or paying off existing debts before you buy a house directly increases how much you can borrow. If you can eliminate that $400 car payment, you free up $400 per month for a larger mortgage. This is one reason some people wait to buy until they have paid off student loans or credit cards — it is not about being debt-free, it is about having room in the 43% threshold for a mortgage.

Lenders will pull your credit report and see every debt you carry. They calculate your debt-to-income ratio (your total monthly debt divided by your take-home pay) before they tell you how much they will lend.

How your down payment affects what you can afford monthly

A larger down payment lowers your monthly payment in two ways. First, you borrow less money, so the mortgage itself is smaller. Second, if you put down 20% or more, you avoid mortgage insurance entirely, which can save $150 to $400 per month.

If a house costs $300,000 and you put down 10% ($30,000), you borrow $270,000. If you put down 20% ($60,000), you borrow $240,000. The difference in the mortgage payment alone is roughly $150 to $200 per month, plus you eliminate PMI. That is $300 to $600 per month in savings — enough to afford a house $50,000 to $100,000 more expensive while keeping the same monthly payment.

This is why down payment matters so much. You may be able to borrow enough for a $350,000 house, but your monthly payment might be unaffordable. With a larger down payment, that same house becomes manageable.

Credit score and interest rate: how they change your payment

Two people borrowing the same amount for the same house can have very different monthly payments if their credit scores differ. A borrower with a 760 credit score might get a 6.5% interest rate, while a borrower with a 640 score might get 7.5%. On a $240,000 loan, that one percentage point difference is roughly $200 per month.

Lenders use your credit score to decide not just whether to lend, but at what interest rate. A higher score means a lower rate, which means a lower monthly payment. If your score is below 620, many lenders will not work with you at all. If it is between 620 and 680, you will pay higher rates. Scores above 740 typically get the best rates.

Improving your credit score before you buy — by paying bills on time, lowering credit card balances, and correcting errors on your report — can lower your interest rate by 0.5% to 1%, which translates to real monthly savings. This is worth doing if you are planning to buy within a year or two.

The difference between what you can afford and what you should pay

A lender may tell you that you can borrow $400,000 based on your income and debts. That does not mean you should spend $400,000. Lenders are willing to lend up to the limit because they make money on interest, not because that payment is comfortable for your life.

Many financial advisors suggest keeping your total housing payment (mortgage, taxes, insurance, HOA fees if any) to 25% to 30% of take-home pay, rather than the 28% to 43% that lenders allow. This leaves more room in your budget for emergencies, savings, and other expenses. If your take-home is $4,000 per month, a 30% housing budget is $1,200 — less than the $1,720 the lender might approve.

The house you can afford is the one that fits your actual budget and life, not the maximum the lender will offer. Use a mortgage calculator to see what different price points cost per month, then decide what feels sustainable for your household.

How job history and income type affect your borrowing power

Lenders do not just look at your current income — they verify that you have earned it consistently. If you are salaried and have been at the same job for two years, lenders treat your income as stable. If you are self-employed, freelance, or on commission, lenders typically average your income over the past two years and may require tax returns and profit-and-loss statements to prove it.

If you recently changed jobs, even to a higher-paying position, some lenders will not count the new income until you have been there for two years. They want to see a history, not a promise. Bonus income, overtime, and side income can count, but again, lenders usually average it over two years and may require documentation.

If your income is irregular or you are new to your field, you may may have access to for less than someone with the same take-home pay but a longer work history. This is one reason to stabilize your job situation before you start house hunting — it directly affects how much you can borrow.

Frequently Asked Questions

What if I want to put down less than 20%?

You can put down as little as 3% to 5% on a conventional loan, but you will pay mortgage insurance (PMI) each month until you reach 20% equity in the home. This adds $150 to $400 per month depending on the loan size. Some first-time buyer programs allow smaller down payments with lower insurance costs, so check what is available in your area.

Can I count my spouse's income if we are not married yet?

No. Lenders only count income from people on the loan. If you are married or in a registered domestic partnership, both incomes count. If you are engaged or dating, only the person explore counts. You can marry before explore to combine incomes, but lenders will not count a future spouse's income.

What if my take-home pay varies month to month?

Lenders average variable income over the past two years. If you earn $3,000 one month and $5,000 the next, they use roughly $4,000 as your baseline. Self-employed people and commission-based workers should gather two years of tax returns to show this average before meeting with a lender.

Does renting build equity like a mortgage does?

No. Rent goes to your landlord; a mortgage payment builds your ownership stake in the house. After 30 years of mortgage payments, you own the house. After 30 years of rent, you own nothing. However, homeownership also comes with maintenance costs, property taxes, and insurance that renters do not pay, so the comparison is more complex than payment alone.

Should I get pre-approved before I start looking at houses?

Yes. Pre-approval tells you the actual amount a lender will offer based on your income, debts, and credit. It also shows sellers you are serious. Pre-approval is free and does not obligate you to borrow — it just gives you a clear number to work with when you are shopping.