Free Debt-to-Income Ratio Calculator
Calculate your debt-to-income ratio (DTI) instantly — the key metric lenders use to evaluate your creditworthiness for mortgages, auto loans, personal loans, and credit cards. Your DTI is your total monthly debt payments divided by your gross monthly income, expressed as a percentage. A DTI below 36% is considered good by most lenders; below 43% is typically the maximum for conventional mortgage approval; above 50% makes most loan approvals difficult. Knowing your DTI before applying for a loan helps you understand your approval odds, identify debts to pay down first, and set realistic expectations. Lenders calculate two types of DTI: "front-end" (housing costs only divided by income) and "back-end" (all monthly debts divided by income). Mortgage lenders look at both. Our calculator computes your back-end DTI — the more comprehensive and commonly referenced ratio.
How to Use
- Enter your gross monthly income (before taxes).
- Enter your monthly mortgage or rent payment.
- Add other monthly debt payments: car loans, student loans, credit cards.
- View your front-end DTI (housing only) and back-end DTI (all debts).
- Check your qualification status for conventional, FHA, VA, and USDA loans.
- Explore "what if" scenarios to see how paying off debts would change your DTI.
FAQ
- What counts as monthly debt for DTI?
- Monthly debt payments include: mortgage or rent payments, car loan payments, minimum credit card payments (not the balance — the minimum due), student loan payments, personal loan payments, child support or alimony, and any other recurring debt obligations. Do not include utilities, groceries, insurance premiums, or other living expenses — those are not debt payments. Use your gross monthly income (before taxes) as the denominator.
- What is a good DTI ratio?
- Most financial experts consider a DTI under 36% excellent, with no more than 28% going toward housing costs. A DTI of 36–43% is acceptable for many lenders but may limit your loan options or require a higher interest rate. A DTI of 43–50% is the maximum for most conventional mortgages (Fannie/Freddie) and many personal loans. Above 50%, approval becomes difficult and you should focus on paying down debt before applying for new credit.
- How can I lower my DTI?
- Two strategies: increase income or decrease debt payments. On the debt side, paying off a small debt entirely (eliminating its monthly payment) has an immediate positive impact on DTI. Paying extra on a high-balance loan won't help DTI until the loan is paid off. On the income side, any documented additional income (part-time work, rental income, freelance) can be included if you can provide documentation. Do not include income sources you cannot verify with tax returns or bank statements.
- Does DTI affect my credit score?
- DTI itself does not directly appear in your credit score — FICO and VantageScore do not factor in income. However, the behaviors that increase DTI (carrying high credit card balances, taking on new loans) do affect your credit utilization ratio and credit mix, which are credit score factors. A high DTI signals to lenders that you are over-leveraged even if your credit score is good, which is why many lenders require DTI documentation separately from credit checks.