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What is Debt-to-Income Ratio, and How Do You Calculate It?

4 min read
Last Updated: February 5, 2026

Key Takeaways

  1. Debt-to-income ratio is a percentage of how much your monthly income compares to your monthly debt payments.
  2. Debt-to-income ratio is calculated by dividing your total monthly debts (the amount you owe) by your monthly gross income (the amount you make before taxes).
  3. Lenders may not approve new lines of credit if your debt-to-income ratio is too high.

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How do I calculate my debt-to-income ratio?

step 1
Add up your monthly debts

Include housing, loans, child support or alimony, and credit card payments. Exclude utilities, gas, or groceries.

step 2
Find your gross monthly income

Gross monthly income is how much you earn before things like taxes and other deductions are taken out.

step 3
Divide expenses by gross income

Divide your total monthly debt by your gross monthly income. Then multiply that by 100 to get the percentage.

For example, if your debts add up to $2,200 per month, and your monthly gross income is $7,000 per month, your debt-to-income ratio is about 31% ($2,000 divided by $7,000, then multiplied by 100).

Calculator
$2,200Monthly debt÷$7000Monthly gross incomex100=31%Your debt-to-income ratio

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