Debt to Income Calculator

The Debt-to-Income (DTI) Ratio Calculator measures the percentage of your gross monthly income that goes toward paying debts. Lenders use DTI as a key factor in determining your creditworthiness for mortgages, auto loans, and other credit products.

How the Formula Works

DTI Ratio = (Total Monthly Debt Payments ÷ Gross Monthly Income) × 100.

How to Use This Calculator

  1. Enter your gross monthly income (before taxes)
  2. Enter all monthly debt payments (mortgage/rent, car loans, student loans, credit cards, etc.)
  3. View your DTI ratio and how lenders evaluate it

Tips & Best Practices

  • Most conventional mortgage lenders require DTI below 43%; FHA allows up to 50%
  • Reduce DTI by paying off small debts before applying for a mortgage
  • Increasing income is just as effective as reducing debt for improving DTI
  • DTI does not include expenses like utilities, groceries, or insurance — only debt payments

Important Limitations

  • Uses gross income (before tax), not take-home pay — actual financial stress may be higher
  • Does not account for living expenses, savings goals, or financial obligations not classified as debt
  • Minimum credit card payments fluctuate as balances change
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