Debt payoff toolkit
This debt to income ratio calculator turns your income and monthly payments into front end and back end DTI percentages, with the lender benchmark bands explained. One number that decides loan applications.
Estimates only. Not financial advice. This calculator runs entirely in your browser and nothing you type leaves your device.
Lenders do not care how much you earn in absolute terms. They care what fraction of it is already spoken for. The debt to income ratio divides your monthly debt payments by your gross monthly income, and the resulting percentage tells a lender how much room you have left. Two ratios matter: front end (housing only) and back end (housing plus every other monthly debt). The back end number is the one that decides most loan applications.
The numbers above: $6,500 gross monthly income, $1,800 housing, $950 in other debt payments. Front end DTI is 27.7%, back end is 42.3%. That back end number sits in the caution zone: just under the 43% benchmark many mortgage lenders use as an upper limit. One paid off car loan could drop it into comfortable territory. That is the real power of this ratio: it turns vague anxiety about debt into one number and one target.
Under 20% is strong. 20 to 36% is the healthy range most lenders like. 36 to 43% is the caution zone where approvals get pickier. 43 to 50% is high, and over 50% means more than half your income services debt, which is where budgets break. These are commonly cited benchmarks, not rules: FHA loans, VA loans and manual underwriting all bend them. But if your back end DTI is climbing, the fix is always the same: kill monthly payments, starting with the smallest. Read what a good DTI ratio looks like for the full breakdown, and check whether consolidation could merge several payments into one smaller one.
Enter your gross monthly income (before taxes), your housing payment, and your other monthly debt payments. It divides housing by income for the front end ratio, and housing plus all debts by income for the back end ratio, then tells you which commonly cited benchmark band you land in.
Under 36% back end is the range most lenders consider healthy. 43% is a widely used upper benchmark for qualified mortgages. Under 20% is strong. Over 50% is where borrowing gets hard and budgets break. These are benchmarks lenders cite, not laws of physics, and they vary by loan type.
Monthly debt obligations: housing (rent or mortgage plus taxes and insurance), minimum card payments, auto loans, student loans, personal loans. Groceries, utilities and subscriptions do not count. Income is gross monthly, before taxes.
Not directly. Scoring models never see your income. But DTI and utilization move together: high DTI usually means high balances, and high balances do hurt your score. Lenders look at both, for different reasons.
Two levers: raise income or cut monthly debt payments. The fastest honest lever is killing a monthly payment entirely: pay off a small loan or card and its minimum disappears from the ratio. Our debt snowball calculator shows which debts die first.