Debt-to-Income (DTI) Requirements to Refinance a Mortgage

Debt-to-income, or DTI, requirements for refinancing a mortgage are very similar to when you originally went through the approval process. Depending on your loan program, your DTI should generally be no higher than about 43–50% of your gross income. But a lot depends on your situation, so let’s take a closer look.

How to Calculate DTI

DTI is a formula lenders use to compare your current monthly housing and debt payments to your gross monthly income, helping them assess your ability to repay the loan.

Here’s the formula:

(Total Housing Payment + All Payments on Debt) / Gross Income = DTI

For example: you have a $2,500 house payment (including principal, interest, taxes, insurance, and dues) and $1,000 in monthly payments on credit cards, student loans, and auto loans. Your before-tax income is $8,000. Your DTI would be 43.7%.

($2,500 + $1,000) / $8,000 = .437 or 43.7%

If your finances are relatively the same as when you first took out your mortgage, your DTI should be in good shape. However, if you’ve taken on more credit card debt or a new auto loan since then, understanding your current DTI and how it can affect your ability to refinance will be important.

Front-End DTI and Back-End DTI

Lenders look at two types of DTI. Your front-end DTI compares your total house payment to your income. Your back-end DTI compares your housing payments and all other debt payments to your income. Throughout this article, we’ll mostly be talking about back-end DTI.

What DTI Do You Need to Refinance?

Generally, lenders want to see your DTI stay under 36%, which signals that your mortgage payments are likely to be sustainable and that you won’t be stretched too thin financially — sometimes called being “house poor.” That said, program guidelines vary, and some lenders will approve applications with higher DTIs when compensating factors are present.

Here’s a look at the requirements for several different loan types.

DTI Requirements for Conventional Refinances

If you plan to refinance with a conventional loan, the ideal back-end DTI is around 36% for both rate-and-term and cash-out refinances. Staying below this level will help you get the best interest rates. However, some lenders will still approve applications with a DTI in the 45–50% range if you have a strong credit profile or significant savings. Refi.com requires a minimum credit score of 620 for conventional rate-and-term refinances and 660 for conventional cash-out refinances.

DTI Requirements for FHA Refinances

If you’re applying for an FHA streamline refinance, you probably don’t need to worry about DTI at all — the streamline option typically doesn’t require income verification, so no DTI can be calculated. Even if you have higher debts or lower income than when you purchased the home, you may still qualify.

However, some FHA refinances, including certain streamline options, may require income verification. In these cases, lenders will consider both your front-end and back-end DTI. FHA guidelines call for a front-end DTI of no more than 31% and a back-end DTI that doesn’t exceed 43%, though lenders may approve higher DTIs for applicants with strong compensating factors. A small number of applicants have received approvals with DTIs as high as 56.9%, but these are rare exceptions.

Keep in mind that Refi.com requires a minimum credit score of 620 for FHA rate-and-term refinances and 620 for FHA cash-out refinances — which may be higher than the FHA program minimums.

DTI Requirements for USDA Refinances

Similar to FHA, USDA offers a streamline option that may not require income or DTI verification.

For USDA refinances that do require full documentation, lenders typically want a front-end DTI of no more than 29% and a back-end DTI of no more than 41%. A back-end DTI of up to 43% may be considered if you have a strong credit score and at least three months’ worth of housing payments in savings. Refi.com also requires a minimum credit score for USDA refinances — please contact us for current requirements.

DTI Requirements for VA Refinances

Most refinances through the VA home loan program — particularly the VA streamline (IRRRL) — will not require income verification or a DTI calculation. However, if you’re seeking a VA cash-out refinance or refinancing into a VA loan from another program, DTI will be required.

In these cases, lenders will generally want a back-end DTI below 41%, though applicants with strong credit profiles may be approved with a DTI as high as 50%. Refi.com also requires a minimum credit score for VA refinances — please contact us for current requirements.

How to Improve Your DTI

If your DTI is pushing the upper limits, the best thing you can do is improve it before applying to refinance. Here are a few strategies:

• Increase your income. A raise at your current job or a higher-paying position with another employer can lower your DTI. Note that income from a side gig or second job typically doesn’t count as qualifying income until you’ve been earning it for at least two years alongside your primary job.
• Pay more than the minimums. If you have credit card debt, paying more than the minimum each month will help you reduce balances faster, improving your DTI.
• Set up a repayment strategy. Having a structured plan accelerates progress. Two common approaches are the debt snowball (paying off smallest balances first) and the debt avalanche (targeting highest-interest debt first).
• Consolidate your debt. With average credit card interest rates above 21%, consolidating into a lower-interest personal loan can reduce your monthly payments and help you pay down balances faster — both of which improve your DTI.
• Use a balance transfer credit card. Some cards offer an introductory 0% APR for up to 21 months. Keeping the same monthly payment while paying no interest lets you eliminate your balance much more quickly.
• Reduce monthly expenses. Cutting discretionary costs — streaming subscriptions, unnecessary services, or shopping around for cheaper insurance — frees up cash you can redirect toward debt repayment.

Ready to Lower Your Rate?

If your DTI is in good shape and you’re ready to explore your refinance options, see today’s rates and start your refinance with Refi.com — it only takes a few minutes to get started.