DTI Ratio Calculator
Assess your loan eligibility and overall financial stability in seconds.
Debt-to-Income Ratio Calculator
Your debt-to-income ratio (DTI) is one of the first numbers lenders look at when you apply for a mortgage or loan. This calculator tells you your DTI in seconds — and whether it's in the range lenders like to see.
What Is a Debt-to-Income Ratio?
DTI is the percentage of your gross monthly income that goes toward paying debts. A low DTI shows lenders you have enough income to comfortably manage additional debt. A high DTI signals financial strain.
How to Use This Calculator
- Add up all your monthly minimum debt payments: mortgage/rent, car loans, student loans, credit card minimums, personal loans.
- Enter your gross monthly income (before taxes).
- Click Calculate to see your DTI percentage.
DTI Formula
DTI = (Total Monthly Debt Payments ÷ Gross Monthly Income) × 100
Example Calculation
Monthly debts: $500 car + $300 student loan + $150 credit card = $950
Gross monthly income: $5,500
DTI = ($950 ÷ $5,500) × 100 = 17.3% — Excellent!
DTI Ranges Explained
- Below 36% — Ideal. Most lenders are comfortable here.
- 36%–43% — Acceptable. Some lenders will approve up to 50% in certain cases.
- Above 50% — High risk. Loan approval becomes difficult.
Common Mistakes to Avoid
- Using net income — Lenders calculate DTI on gross (pre-tax) income, not take-home pay.
- Forgetting minimum credit card payments — Include the minimum, not the full balance.
- Leaving out co-signed loans — If you co-signed a loan, it counts in your DTI even if someone else pays it.
- Not including the new loan payment — When applying for a mortgage, lenders add the proposed new payment to your existing debts.
Frequently Asked Questions
What DTI do I need to get a mortgage?
Most conventional lenders want a DTI of 43% or less. FHA loans may allow up to 50% with strong compensating factors like a high credit score or large down payment.
How can I lower my DTI quickly?
Pay down existing debts (especially small balances you can eliminate quickly), avoid taking on new debt, or increase your income. Even a side income counts toward gross monthly income.
Does DTI affect my credit score?
Not directly — DTI isn't part of your credit score calculation. However, high debt levels often correlate with high credit utilization, which does hurt your score.
Is front-end DTI different from back-end DTI?
Yes. Front-end DTI includes only housing costs. Back-end DTI includes all debt payments. Lenders typically look at both, with back-end being the more important number.
What if my DTI is too high to qualify?
Consider paying off one or more smaller debts before applying, or apply for a smaller loan amount. Check our Debt Payoff Calculator to find the fastest way to reduce your balances.
Conclusion
Your DTI is a quick health check on your financial balance. Calculate yours before applying for any loan — knowing your number lets you prepare, improve it if needed, and walk into any application with confidence.
Related: Mortgage Calculator | House Affordability Calculator | Debt Payoff Calculator | Loan Calculator
Mortgage Tip
Lenders look at the *monthly* payments, not the total loan balance. Paying off a small loan with a high monthly payment can improve your DTI more than paying down a large loan with a small payment.
