Debt-to-Income Ratio Calculator: Check Your DTI for 2026

Calculate your debt-to-income ratio to see if you qualify for a mortgage or loan. Enter your income and monthly debt payments instantly.

Mathematical Audit

How Debt-to-Income Ratio Is Calculated

DTI measures the percentage of your gross monthly income that goes toward debt payments.

Total Monthly Debt = Mortgage + Car + Student Loans + Credit Cards + Other Payments
DTI Ratio = (Total Monthly Debt ÷ Gross Monthly Income) × 100

Lenders typically require DTI below 36% for conventional loans, though FHA allows up to 43% and some programs allow up to 50% with compensating factors.

Operational Guide

How to Use the Debt-to-Income Ratio Calculator

1

Enter your gross monthly income

Use your pre-tax monthly income from all sources including salary, bonuses, and side income.

2

Enter your monthly debt payments

Include mortgage/rent, car payment, student loans, credit card minimums, and any other recurring debt.

3

Add a proposed new payment (optional)

If you're applying for a new loan, enter the expected monthly payment to see your projected DTI.

4

Review your DTI assessment

See your current DTI, projected DTI with new debt, and a rating of your qualification likelihood.

Real-World Scenario Example

"A homebuyer earning $6,000/month gross with $1,500 mortgage, $350 car payment, $200 student loans, and $150 credit card minimums."

Inputs

grossMonthlyIncome:6000
mortgageRent:1500
carPayment:350
studentLoanPayment:200
creditCardMinimum:150

Result

Total monthly debt: $2,200. DTI ratio: 36.7%. Rating: Caution — at the edge of conventional loan limits.

Important Disclaimer

This calculator provides estimates for informational purposes only. Actual lending decisions depend on credit score, employment history, assets, and other factors. Consult a mortgage professional for personalized qualification advice.