Home Affordability Calculator: How Much House Can I Afford?

Enter your income, monthly debts and down payment to see the most house you can afford under the 28/36 rule. The payment includes property tax, insurance and PMI, and you'll see which limit sets your budget.

Before taxes, for everyone on the loan.
Car, student loan, minimum credit card and other loan payments. Not rent or utilities.
Cash toward the price, not counting closing costs.
More options
Only applied when the down payment is under 20%.
Housing payment ÷ gross monthly income.
Housing plus other debts ÷ gross monthly income.
Home price you can afford
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Monthly payment
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Loan amount
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Down payment (% of price)
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Monthly payment breakdown at this price
Principal & interest—
Property tax—
Homeowners insurance—
PMI—
HOA dues—
Total monthly payment—
Compare common lending limits
Home price you could afford under common debt-to-income limits
LimitsPaymentHome price
28% / 36%
Rule of thumb
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31% / 43%
FHA standard
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40% / 50%
FHA top tier
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Limits are housing / total debt as a share of gross income. The FHA rows are FHA's limits for manually underwritten loans, and its 40/50 top tier requires two compensating factors, such as cash reserves. Each row changes only the limits and keeps your other inputs, so it doesn't model FHA's own mortgage insurance.

Results are estimates for a fixed-rate loan. Property tax is figured as a share of the price, PMI applies only with less than 20% down, and closing costs, utilities and maintenance aren't included. Lenders apply their own rules, so the amount you're approved for may differ. See our terms of use.

How to use this calculator

Start with your household income: the yearly total, before taxes, of everyone who will be on the loan. Then enter your monthly debt payments. Count the minimum payments on car loans, student loans, credit cards and personal loans, plus court-ordered payments such as child support. Leave out rent, utilities, phone bills and groceries.

Next, enter your down payment, the cash you'll put toward the price. Keep the money for closing costs separate. Then add an interest rate and choose a loan term. If you don't have a rate quote yet, try a few rates to see a range.

The results update as you type, and the message under them tells you which limit set your budget. Open More options to enter your local property tax rate, insurance, HOA dues and PMI, or to change the two limits. Open Compare common lending limits to see the price under the higher limits some loan programs allow.

How the calculator works

The calculator works in two steps. First it finds your housing budget, the most you can spend on housing each month without going over either limit:

Housing budget = the lower of (monthly income × 28%) and (monthly income × 36% − other debts)

Then it finds the highest home price whose full monthly cost fits that budget. At any price, the cost is principal and interest on the loan (the price minus your down payment), plus property tax, insurance and HOA dues. If you put down less than 20%, PMI is added too.

Example: with the default inputs, a $100,000 income is $8,333.33 a month. The housing limit allows 28% of that, or $2,333.33. The total-debt limit allows 36%, or $3,000.00, and after $500 of other debts that leaves $2,500.00. The lower number, $2,333.33, is the budget. With $60,000 down and a 6.5%, 30-year loan, the highest price that fits is $338,067, with a $278,067 loan. The payment is made up of $1,757.57 of principal and interest, $309.89 of property tax, $150.00 of insurance and $115.86 of PMI.

Watch for the PMI cliff. PMI starts as soon as your down payment drops below 20% of the price, so the answer can land exactly on the 20% mark. With $70,000 down, the result is exactly $350,000. At that price there's no PMI and the payment is $2,240.62. Any higher price would add about $116.67 a month of PMI and push the payment to about $2,357, over the $2,333.33 budget.

The 28/36 rule and your debt-to-income ratios

The 28/36 rule is a common guideline for how much of your gross (pre-tax) income should go to a home:

It's a rule of thumb, not a law. A Consumer Financial Protection Bureau worksheet, for example, suggests homeowners keep total debt payments at 36% of income or less. It also notes that some lenders go up to 43% or higher. Because the rule uses income before taxes, it can't see your take-home pay, retirement savings or child care costs. Treat the result as a starting point, not a target.

Front-end vs. back-end DTI

Lenders measure your debt load with two debt-to-income (DTI) ratios. The front-end ratio, or housing ratio, is your monthly housing payment divided by your gross monthly income. The back-end ratio, or total DTI, adds all your other monthly debt payments to the housing payment before dividing.

In the example, the $2,333.33 payment is 28.0% of the $8,333.33 monthly income. Adding the $500 of other debts brings the back-end ratio to 34.0%, under the 36% limit.

Which limit holds you back depends on your other debts. With small debts, it's usually the housing ratio. With bigger car or student loan payments, the total-debt ratio takes over. If the example household's other debts were $1,000 a month, 36% of income ($3,000.00) minus $1,000 would leave $2,000.00 for housing, and the affordable price would fall to $300,000. Check your own ratios with our debt-to-income ratio calculator.

What lenders look at

A calculator can't approve you for a loan. Under the federal ability-to-repay rule, most lenders must make a reasonable, good-faith determination that you can repay, based on your income, assets, employment, credit history and monthly expenses. In practice, they look closely at four things:

These limits make a big difference. In the example, FHA's standard 31/43 limits would allow a $370,730 home and its 40/50 tier $468,718, compared with $338,067 under 28/36. Open Compare common lending limits above to see your own numbers.

Costs beyond the monthly payment

The monthly payment isn't the whole cost of owning a home. Plan for these too:

How to afford more house safely

Frequently asked questions

What's the difference between what I'm approved for and what I can afford?

Approval is based on a lender's limits, which can be well above 28/36. In the example, 40/50 limits would allow a $468,718 home with a $3,333.33 payment, 40% of gross income. An approval shows how much a lender will lend, not what fits your life. Check the payment against your take-home pay, savings goals and other costs before you choose a price.

Does this calculator include closing costs?

No. It assumes your down payment is separate from closing costs, which typically run 2% to 5% of the purchase price. If the same savings must cover both, subtract your estimated closing costs before you enter your down payment.

What credit score do I need to buy a house?

There's no single minimum. FHA loans accept scores as low as 500 with 10% down, or 580 and up with 3.5% down. Conventional loan requirements depend on the lender and the loan. A higher score usually means a lower rate, which raises the price you can afford.

Is the 28/36 rule a requirement?

No. It's a guideline, and no federal rule sets those two limits for every borrower. Each loan program and lender sets its own limits, and many allow higher ratios, as the comparison above shows. You can change both limits in More options.

Should I use my gross income or my take-home pay?

Use gross income, because that's what lenders and the 28/36 rule are based on. Then compare the monthly payment with your take-home pay to make sure it fits the budget you actually live on.

Last reviewed: October 2026