One ratio. A clearer starting point.

Add the proposed housing payment and required monthly debt payments, divide by gross monthly income, then multiply by 100. Use annual income before taxes; the calculator divides it by 12.

A ratio is one part of a mortgage review. It does not capture your groceries, savings goals or every household expense. Our team can review qualifying income and program rules alongside your real spending comfort.

See the CFPB debt-to-income worksheet.

Debt-to-Income Calculator

Adjust the numbers to compare a planning scenario. Our team can help review the complete payment, cash needed and financing options.

See the numbers and payment schedule

Information and calculations are illustrative—not a rate quote, approval or commitment to lend. Rates and costs are assumptions. Mortgage insurance, taxes, insurance and HOA charges can change. Affordability and DTI outputs are planning estimates, not underwriting decisions. Refinance comparisons exclude opportunity cost and tax effects.

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Questions worth asking

Should I use gross or take-home income?

Use gross income before taxes for this ratio. Separately compare the full housing cost with your take-home budget. Our team can help review income that qualifies for your loan.

Do I enter credit card balances or payments?

Enter required minimum monthly payments, not the total balances. Student loans, deferred debt and disputed accounts can be treated differently under program rules. Bring the statements to our team.

Does the mortgage payment include taxes and insurance?

Yes. Include principal, interest, property taxes, home insurance, mortgage insurance and HOA dues that apply. Avoid counting those charges again under other debts.

Is there one DTI limit for every mortgage?

No. Program, automated underwriting, income, credit and other factors can change the review. This calculator does not approve or decline a loan. We can compare the options for your circumstances.

Should I pay off debt before applying?

The best move depends on payments, available cash and your purchase or refinance plans. Before using reserves to pay debt, let our team compare the trade-offs and plan the next step.

*Information, scenarios, and calculations are for educational and illustrative purposes only—not a loan offer, a commitment to lend, a rate quote or an approval. Programs, costs and qualification requirements depend on the borrower, property, selected lender and current guidelines. Examples are not guaranteed results. Our team can review the details for your situation. These tools do not replace a Loan Estimate, an underwriting decision, or legal or tax advice. Check all figures before relying on them; Cederholm Mortgage Advisors does not warrant the accuracy or completeness of estimates and, to the extent permitted by law, is not responsible for losses arising from reliance on these tools. This notice does not waive rights that cannot legally be waived.