Debt-to-Income Ratio Calculator
Calculate your front-end and back-end debt-to-income ratios to see if you qualify for a mortgage. Lenders typically want a DTI below 36-43%.
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Understanding Debt-to-Income Ratio
Your debt-to-income ratio (DTI) is one of the most important numbers in mortgage qualification. It compares your total monthly debt payments to your gross monthly income, expressed as a percentage. Lenders use DTI to assess your ability to manage monthly payments and repay borrowed money.
Front-End vs Back-End DTI
Front-end DTI (Housing Ratio): Compares only housing costs (mortgage payment, property tax, insurance, HOA) to gross income. Most lenders prefer this under 28%, though some allow up to 31%.
Back-end DTI (Total Debt Ratio): Includes all monthly debt obligations — housing plus car loans, student loans, credit card minimums, and other recurring debts. The standard guideline is under 36%, though FHA loans allow up to 43% and some lenders go higher with compensating factors.
DTI Requirements by Loan Type
Conventional loans: Generally prefer back-end DTI under 36%, but may approve up to 45% with strong credit and reserves.
FHA loans: Allow up to 43% back-end DTI, and sometimes higher with compensating factors like significant cash reserves.
VA loans: No strict DTI limit, but lenders typically cap at 41%. Residual income is also considered.
USDA loans: Front-end DTI capped at 29%, back-end at 41%.
How to Lower Your DTI
There are two approaches: increase income or reduce debt. Paying off credit cards or car loans before applying for a mortgage can dramatically improve your DTI. Consolidating debts, increasing your down payment (to reduce the mortgage amount), or adding a co-borrower's income can also help.