Debt-to-Income Ratio Calculator
Calculate your debt-to-income ratio, a figure lenders use to assess how much of your income already goes to debt.
Calculate your debt-to-income ratio, a figure lenders use to assess how much of your income already goes to debt.
How Debt-to-Income Ratio Calculator Works
Total monthly debt payments (loans, credit cards, car payments — not everyday expenses like groceries) are divided by gross monthly income, before taxes, and expressed as a percentage.
Who Uses Debt-to-Income Ratio Calculator and Why
- Checking your DTI before applying for a mortgage, to see whether it's likely to fall within a typical lender's acceptable range.
- Testing how paying off a specific debt (like a car loan) would improve DTI before a planned major loan application.
- Comparing DTI before and after taking on a new monthly obligation, like rent or a new loan, to see its effect on borrowing capacity.
- Understanding how gross (pre-tax) income, rather than take-home pay, is used in this specific calculation, since that's what many lenders reference.
Mistakes to Avoid
- Using net (take-home) income instead of gross monthly income — DTI is conventionally calculated against gross income before taxes, and using the smaller after-tax figure will overstate the ratio.
- Leaving out rent or mortgage payments from total monthly debt — housing payments are typically included in DTI calculations alongside loans and credit cards, not treated as a separate category.
- Including everyday living expenses like groceries or utilities in the debt figure — DTI specifically measures required debt obligations (loans, credit cards, car payments, housing), not general cost of living.
Tips for Best Results
- Check your DTI against a target range before applying for a mortgage — many lenders prefer at or below 36%, with most program ceilings somewhere around 43-50%, though this varies by lender and loan type.
- If your DTI is higher than you'd like, model the effect of paying off one specific debt (like a car loan) on the ratio before deciding where to focus extra payments.
Fixing Common Problems
My DTI seems higher than I expected. — Confirm you used gross monthly income (before taxes), not take-home pay, and that you included all required debt payments — housing, loans, and credit cards — since leaving any of these out or using net income will produce a misleadingly low or high figure.
Terms Explained
DTI (Debt-to-Income ratio): Total monthly debt payments divided by gross monthly income, expressed as a percentage — a figure lenders use to gauge how much of income is already committed to debt.
Gross income: Income before taxes and other deductions are taken out, as opposed to net or take-home pay.