Frequently Asked Questions
What is a good DTI ratio?
Ideally below 36% for back-end DTI, with housing costs under 28%. Under 20% is excellent. 37-42% is acceptable but may limit options. Over 43% makes mortgage approval difficult without strong compensating factors like excellent credit or substantial savings.
How do I lower my DTI?
Pay off debts (especially credit cards), increase income (side job, raise), consolidate loans for lower payments, avoid new debt before applying for mortgage, or add co-borrower with income. Even small reductions help—every $100 in monthly debt matters.
Does DTI include utilities and groceries?
No. DTI only includes recurring debt obligations: mortgage/rent, car loans, student loans, credit card minimums, personal loans, child support, alimony. Living expenses like utilities, food, gas, and insurance (except mortgage) aren't counted—but you should consider them in your budget.
Is rent included in DTI?
Yes, your current rent counts in DTI calculations. However, when qualifying for a mortgage, lenders will substitute your projected mortgage payment (PITI) for your current rent when calculating front-end ratio. This is why renters with high rent can sometimes qualify for mortgages.
What DTI do I need for FHA loan?
FHA guidelines are 31% front-end and 43% back-end, but automated underwriting may approve up to 50% DTI with strong credit and reserves. FHA is generally more flexible than conventional loans for higher DTI borrowers, making it popular for first-time buyers.
Can I get a mortgage with 50% DTI?
It's challenging but possible with FHA's automated underwriting system if you have excellent credit (720+), substantial reserves (3-6 months payments), stable employment history, and minimal payment shock (new payment similar to current housing cost). Conventional loans rarely approve above 43%.
Does DTI affect interest rates?
Indirectly yes. Higher DTI may require manual underwriting with stricter scrutiny and potentially higher rates. Lower DTI often correlates with better credit and financial management, which gets better rates. Some lenders tier pricing based on DTI thresholds.
How do student loans affect DTI?
Student loans count fully. If on income-based repayment, some lenders use that lower amount. If deferred, FHA uses 1% of balance, conventional may use 1% or actual payment if documented. High student loan balances can significantly reduce mortgage qualification.
Should I pay off debt before applying?
Generally yes if it meaningfully reduces DTI. Pay off credit cards first (high minimum payments relative to balance). Don't drain savings completely—you need reserves. Sometimes keeping savings and accepting slightly higher DTI is smarter than zero savings with perfect DTI.
Do medical bills count in DTI?
Only if they appear as monthly payment obligations on your credit report. Unpaid medical collections under $2,000 may not count. Medical debt in payment plans counts as monthly obligation. Lenders may exclude medical debt more readily than other consumer debt.
What is residual income for VA loans?
VA loans use residual income—money left after all debts and living expenses—rather than strict DTI limits. Varies by region and family size. You can have 50%+ DTI and still qualify if residual income meets guidelines. This helps military families in high-cost areas.
Can co-signers help my DTI?
Yes, but co-signers are fully responsible for the loan. Their income counts toward qualification, but their debts count too. Most co-signers are family members. Both parties' credit is affected. Lenders want co-signers who significantly strengthen the application, not just barely help.