MortgageCalcFast

Monthly debt load

Debt-to-Income Ratio Calculator

See how much of your monthly pay would go to debts once you add the home payment you have in mind.

Income and debts

Debt-to-income ratio

$
$/mo
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Total debt-to-income ratio

30.0%

Gross monthly income$10,000
Housing-only ratio25.0%
Total monthly debts$3,000
Income left before taxes$7,000
This is a ratio, not a decision.

Different loans count income and debts differently, and allow different limits. Your credit, your savings and the home itself all matter too.

Two ratios, two questions

How the number is worked out

There are two versions of it. The housing-only ratio is the home payment divided by your monthly pay before tax. The total debt-to-income ratio (DTI) adds your other monthly debts on top, then divides by that same pay. Lenders care most about the total.

An example

Say you earn $120,000 a year. That is $10,000 a month before tax. A $2,500 home payment is 25% of it. Add $500 of car and card payments and you are at $3,000 a month, or 30%.

What it cannot tell you

DTI is one thing a lender looks at, not the whole decision. Your credit, your savings, the type of loan and the home itself all count. This tool does not say whether you will be approved.

Use the whole payment

Enter the full monthly cost of the home, not just loan and interest. Add property tax, home insurance, mortgage insurance and any association fee. Leave those out and the ratio looks better than it really is.

Primary source

Fannie Mae Selling Guide: debt-to-income ratios

Keep exploring

Calculate your total paymentCheck your debt-to-income ratioEstimate cash needed at closing

Common questions

Frequently asked questions

Does DTI use my pay before or after tax?+

Before tax, and before anything else is taken out of your paycheck. That is a bigger number than the one that lands in your bank account, so use the bigger one.

Which debts should I count?+

The ones you owe every month: car loans, student loans, credit cards, child support. Food, gas and power bills are not counted. Lenders differ a little at the edges.

Is 36% the limit?+

No. There is no single number that gets you approved or turned down. Different loan types allow different ratios, and the rest of your file counts too.