Debt-to-Income Ratio Calculator for Housing and Total Debt

Calculate front-end and back-end debt-to-income ratios from gross monthly income, housing costs, credit cards, auto loans, student loans, and other debts.

Calculate how much of gross monthly income goes to housing and recurring debt payments. Compare both ratios with an editable planning target.

Calculations run in your browser. Your financial inputs are not uploaded or stored.

Debt-to-Income Ratio Calculator

Use rent or the proposed mortgage payment including taxes, insurance, and applicable association or mortgage-insurance charges.

Advanced assumptions

Estimated debt-to-income ratios

Enter your assumptions to calculate an estimate.

Detailed results

Swipe or scroll horizontally to see every column.

Monthly debt included in DTI
DetailAmount

How the debt-to-income ratio calculator works

Front-end DTI = monthly housing payment ÷ gross monthly income × 100. Back-end DTI = housing payment plus other recurring monthly debt ÷ gross monthly income × 100.

Groceries, utilities, transportation, subscriptions, and most other living expenses are not included in the DTI formula, but they still matter to a household budget.

How to use this calculator

  1. Enter gross monthly income before taxes and deductions.
  2. Enter the housing payment and required monthly payments for each listed debt category.
  3. Review front-end DTI, back-end DTI, debt totals, and room under the editable comparison target.

Assumptions and limitations

Sources and further reading

Worked example

Example: $10,000 income and $3,500 total monthly debt

A $2,500 housing payment divided by $10,000 gross income gives a 25% front-end DTI. Adding $1,000 of other debt creates $3,500 total monthly debt.

Back-end DTI is 35%. Against a 36% comparison target, the remaining monthly room is $100.

Frequently asked questions

What income should I use for DTI?

Use gross monthly income before taxes and deductions. Include other income only when it is appropriate and documentable for your planning purpose.

Which debts are included?

Use the housing payment and required monthly payments for credit cards, auto loans, student loans, installment debts, and applicable court-ordered obligations.

Does a DTI below 36% guarantee approval?

No. The target is a planning comparison. Lenders may use different ratios, income treatment, debt calculations, credit standards, reserves, and program rules.

This calculator provides an estimate for planning and education. Actual lender calculations, rates, costs, taxes, insurance, market changes, and individual circumstances may differ.