Your debt-to-income ratio, or DTI, is the single number most lenders lean on to decide how much more debt you can safely carry. It is simple to calculate and easy to misread, because "good" depends heavily on what you are borrowing for. A DTI that sails through an auto loan can sink a mortgage application. This is not financial advice — treat it as a starting framework and confirm specific limits with your lender.
What changed in 2026
- Median home prices and rates together have kept monthly housing payments elevated, which pushes many otherwise strong applicants closer to the back-end DTI ceiling than in past years.
- Some lenders now weigh recurring subscriptions and buy-now-pay-later plans more consistently when they show up on bank statement reviews, even if they do not appear on a credit report.
- Automated underwriting systems have gotten stricter about compensating factors, so a slightly high DTI is more survivable with strong reserves or credit history than it used to be, but not guaranteed.
How DTI is actually calculated
DTI is your total monthly debt payments divided by your gross (pre-tax) monthly income, expressed as a percentage. Only minimum required payments count — not the full balance, and not day-to-day spending like groceries or utilities.
Debts typically included: mortgage or rent, auto loans, student loans, minimum credit card payments, personal loans, and child support or alimony. Not included: utilities, insurance premiums, groceries, or subscriptions, even though they affect your real budget.
Front-end vs back-end DTI
Mortgage lenders split the ratio into two:
- Front-end DTI — housing costs only (principal, interest, taxes, insurance, HOA) divided by gross income. Conventional loans typically want this near 28 percent or below.
- Back-end DTI — all monthly debt, including the mortgage, divided by gross income. This is the number most guidelines cap at 36–43 percent, with some government-backed programs allowing higher with strong compensating factors.
What counts as good
| DTI range |
General read |
Typical use case |
| Under 20% |
Excellent |
Qualifies for most products with room to spare |
| 20–36% |
Good |
Standard target for conventional mortgages |
| 37–43% |
Borderline |
May need strong credit or reserves to qualify |
| Over 43% |
High risk |
Limited options; often requires paying down debt first |
These bands are general guidance, not universal rules — always verify the specific cutoff for the loan product you want, since it changes by lender and program.
How to lower your DTI before applying
- Pay down revolving balances first — credit card minimums shrink as balances shrink, and the effect shows up quickly.
- Avoid new debt in the months before applying, including a new car loan or furniture financing, both of which add a fixed monthly payment.
- Increase documented income where possible — a raise, bonus, or added co-borrower all reduce the ratio on paper.
- Refinance high-payment debt into a lower monthly payment, such as consolidating several cards into one lower-rate loan, which can help even if the total balance owed does not change much.
If you are specifically working toward a mortgage, it is worth reading up on refinancing your mortgage since a refinance can sometimes reset your monthly obligations in a way that improves DTI going forward.
FAQ
Does DTI include my spouse or partner's debt?
Only if they are a co-borrower on the application. Individual accounts not shared with the lender generally are not counted.
Is a lower DTI always better?
For approval odds, yes. But do not confuse a low DTI with a healthy overall financial picture — someone with no debt and no savings is not automatically in better shape than someone with a mortgage and steady retirement contributions.
Can I get approved with a DTI over 43 percent?
Sometimes, with strong credit, large reserves, or a government-backed loan program, but options narrow considerably and rates may be less favorable.
Does rent count toward DTI if I am buying my first home?
Current rent is dropped from the calculation once you are buying; only the new projected mortgage payment counts.
Where to go next
For more on the borrowing side of this picture, see adjustable-rate vs fixed-rate mortgages, refinancing your mortgage, and credit card grace periods explained.