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How To Calculate Your Debt To Income Ratio

By LaToya Irby, About.com

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Total Your Monthly Debt

Your debt-to-income ratio is equal to your monthly debt payments divided by monthly income.

DTI = monthly debt / monthly income

The first step in calculating your debt-to-income ratio is determining how much you spend each month on debt.

To start, add up what you spend each month on the following:
  • Mortgage or rent
  • Minimum credit card payments
  • Car loan
  • Student loans
  • Alimony/child support payments
  • Other loans

This is the total amount you spend each month on debt.

Example:

Let's assume Sam has the following expenses:
  • mortgage = $950
  • minimum credit card payments = $235
  • car loan = $355
$950 + $235 + $355 =
Sam's total monthly debt payments = $1,540
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