Calculator

Understand Your Debt-to-Income Ratio

Debt-to-income ratio compares certain monthly obligations with qualifying monthly income. This calculator can help illustrate the math, but lender calculations and program requirements vary.

Your monthly figures

Gross monthly income$

Housing expenses

Principal & interest$

Property taxes$

Homeowners insurance$

Mortgage insurance$

HOA$

Other monthly debts

Auto loans$

Student loans$

Credit card minimum payments$

Personal / installment loans$

Other recurring debt$

Estimated front-end DTI

33.3%

Estimated back-end DTI

33.3%

Total housing expense: $5,000
Other monthly debts: $0
Total monthly debt: $5,000
Gross monthly income: $15,000

DTI requirements vary by loan program, lender, borrower profile and underwriting findings. Not every monthly expense is included in mortgage DTI calculations, and certain obligations may be treated differently under applicable guidelines.

How the ratios work

Two ratios, two different questions.

Front-end DTI

Estimated housing obligations relative to gross monthly income.

Back-end DTI

Estimated housing obligations plus applicable recurring debts relative to gross monthly income.

Mortgage underwriting uses qualifying income and specific debt-calculation rules. The numbers used by a lender may differ from the numbers entered here.

Next step

Want to see what these numbers look like with actual financing options?

Use the calculator to explore the scenario, then compare financing structures based on your goals.

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For illustrative purposes only

This calculator provides estimates based on user-entered assumptions. It is not a loan estimate, rate quote, offer, approval or commitment to lend. Actual interest rates, APRs, payments, property taxes, insurance, mortgage insurance, closing costs and qualification vary based on the borrower, property, lender and loan program.