Debt-to-Income Ratio: What It Is and How to Improve It

What Is Debt-to-Income Ratio?

Debt-to-income ratio (DTI) measures the percentage of your gross monthly income that goes to debt payments. Lenders use DTI to determine how much mortgage you can afford. There are two types:

Front-end DTI (housing ratio): Your proposed monthly housing payment (PITI + PMI + HOA) divided by gross monthly income. Most lenders cap this at 28-31%.

Back-end DTI (total debt ratio): All monthly debt payments (housing + car loans + credit cards + student loans + other debts) divided by gross monthly income. Most lenders cap this at 43-50%.

DTI Limits by Loan Type

• Conventional: 43-45% back-end (50% with strong compensating factors)
• FHA: 43% standard, up to 50% with compensating factors
• VA: No fixed DTI limit, but 41% guideline; residual income is key
• USDA: 41% back-end
• Jumbo: 43% typically

How to Lower Your DTI

Pay off debts: Eliminating a $350/month car payment immediately improves your DTI. Prioritize debts with the highest monthly payments.

Increase income: A raise, side job, or co-borrower's income all help. Document at least 2 years of consistent income for it to count.

Do not take on new debt: Avoid new car loans, credit cards, or personal loans before and during the mortgage process.

Consider a smaller home: A lower mortgage payment directly reduces your housing DTI. Sometimes buying below your maximum budget is the smartest move.