Debt-to-Income Ratio Explained: How Lenders Calculate Your Qualifying Income
Debt-to-Income ratio (DTI) compares your total monthly debt payments to your gross monthly income. It's one of the primary factors lenders use to determine how much you can borrow.
What You'll Learn
- How DTI is calculated
- Front-end vs. back-end DTI
- Maximum DTI by loan program
- How to reduce your DTI
- What income counts in the DTI calculation
The Full Explanation
DTI directly determines how much house you can afford. CTC Processing calculates accurate DTI at intake and models scenarios to help LOs maximize borrower purchasing power.
Frequently Asked Questions
What is the maximum DTI for a mortgage?
Conventional: 45–50% depending on AUS approval. FHA: up to 57% with AUS. VA: technically no maximum but 41% is the guideline. USDA: 41% back-end standard. CTC identifies the right program for each DTI profile.
What debts are counted in DTI?
All monthly minimum debt obligations: credit card minimums, auto loans, student loans, personal loans, and the proposed housing payment (PITIA). Child support and alimony are also counted.
Can I pay off debts to qualify?
Yes — paying off credit cards, auto loans, or installment debts reduces DTI. CTC models which payoffs provide the most DTI improvement relative to available cash, before recommending a payoff strategy.