No, utilities are not included in your debt-to-income ratio. Electricity, gas, water, trash, and internet are service charges for things you’ve already used, not borrowed money you’re repaying, so lenders leave them out of the DTI calculation entirely. The ratio compares your monthly credit obligations — the kind that appear on your credit report or in a court order — against your gross monthly income. A delinquent utility account that gets sold to a collection agency is the one scenario where a utility bill can indirectly reach your mortgage file.
What Counts in Your DTI Ratio
Lenders focus on recurring monthly debts tied to a binding agreement to repay a specific amount on a set schedule. Fannie Mae’s underwriting guidelines list the usual categories:
- Housing payments, including mortgage principal and interest, property taxes, homeowners insurance, mortgage insurance, and HOA dues
- Credit card minimum monthly payments
- Installment loans — auto, student, personal — with more than ten months of payments left
- Mortgages on other properties and home equity lines of credit
- Alimony, child support, and separate maintenance that continue for more than ten months
- Car leases and other ongoing lease obligations
The common thread is a verifiable, scheduled debt payment. Each of these can be checked through credit bureau data or legal documents.1Fannie Mae. General Information on Liabilities
Several expenses that feel like debts are also excluded alongside utilities: federal, state, and local income taxes, Social Security contributions, retirement plan contributions (including 401(k) repayment loans), commuting costs, and union dues.1Fannie Mae. General Information on Liabilities They’re living expenses, not credit obligations.
Why Utilities Stay Out of the Calculation
The distinction comes down to whether you borrowed money. A car loan or credit card balance exists because a lender extended you a specific amount of credit, and you agreed to repay it with interest. A utility bill is a charge for a service you already used. There is no principal, no loan term, and no interest on borrowed funds.
Utility companies also don’t routinely report your payment history to Equifax, Experian, or TransUnion. Since underwriters rely heavily on credit reports to verify debts, your monthly electric or water bill simply doesn’t show up in the data they review. The amount shifts from month to month based on usage, which keeps it out of the fixed-payment formula lenders use.
Only the back-end ratio captures non-housing debts in the first place, and even there, utilities don’t belong. The front-end ratio only measures housing costs — mortgage payment, property taxes, homeowners insurance, and HOA fees — against gross income. The back-end ratio adds the other scheduled debts. Utilities appear in neither.2Fannie Mae. DU Job Aids: DTI Ratio Calculation Questions
When an Unpaid Utility Bill Can Still Hurt You
On-time utility payments stay invisible to lenders. Severely delinquent accounts are a different matter. If you stop paying a utility bill and the provider sends the debt to a third-party collection agency, that agency can report the unpaid balance to the credit bureaus. The debt then appears as a collection item on your credit report, and your lender will see it.
How that collection account gets handled depends on the loan program. Some underwriting guidelines require you to pay it off or set up a repayment plan before the loan can close. Even when payoff isn’t required, the collection entry damages your credit score and raises questions about how you manage recurring bills. The Fair Credit Reporting Act governs how long this information can remain on your file.3Office of the Law Revision Counsel. 15 USC 1681 – Congressional Findings and Statement of Purpose
So the ratio itself doesn’t change, but a delinquent utility account can reach your mortgage approval through the credit score and the collection line item.
Can Paying Utilities On Time Help You Qualify?
Programs like Experian Boost let you voluntarily add on-time utility and phone payments to your Experian credit report. On average, users who saw a score increase gained 13 points on their FICO Score 8, and only on-time payments are added.4Experian. How Utility Bills Could Boost Your Credit Score
These programs affect your credit score, not your DTI ratio. Even with Boost active, your utility payments aren’t treated as debt obligations in the DTI formula. Some mortgage lenders may also ask you to remove Boost entries from your file during underwriting so they can evaluate your score based on traditional credit data alone. A higher score can help you meet minimum thresholds or qualify for a better rate; it won’t change the DTI math.
How to Calculate Your DTI
Add up your qualifying monthly debt payments, divide by your gross monthly income (what you earn before taxes and deductions), and multiply by 100.
Say you pay $1,400 for your mortgage with taxes and insurance, $350 for a car loan, and $150 in credit card minimums. Your qualifying debts total $1,900. On a gross monthly income of $5,500, your back-end DTI is about 34.5 percent. Your front-end ratio in the same example is about 25.5 percent, since only the housing payment counts there. Nothing you pay for electricity, water, gas, trash, internet, or cable enters either number.
DTI Limits That Actually Matter
Different loan programs set different ceilings, and most allow flexibility for borrowers with other strengths.
Conventional Loans
For loans sold to Fannie Mae, the maximum back-end DTI is 36 percent for manually underwritten loans. That can rise to 45 percent if the borrower meets higher credit score and reserve requirements. When a loan runs through Fannie Mae’s automated Desktop Underwriter system, the maximum allowable DTI is 50 percent.5Fannie Mae. Debt-to-Income Ratios
FHA Loans
FHA loans generally cap the front-end ratio at 31 percent and the back-end ratio at 43 percent. Borrowers with compensating factors such as strong credit, significant cash reserves, or minimal increases in housing payment may qualify with a back-end DTI as high as 50 percent.
VA Loans
The Department of Veterans Affairs doesn’t impose a hard DTI cap. The VA suggests a 41 percent back-end guideline, and borrowers above that threshold can still qualify if they show adequate residual income — the money left over each month after paying all debts and essential living expenses.
Qualified Mortgages
Federal regulations once capped qualified mortgages at a 43 percent DTI. The Consumer Financial Protection Bureau replaced that hard cap in October 2022 with a price-based standard tied to the loan’s APR relative to the average prime offer rate.6Federal Register. Qualified Mortgage Definition Under the Truth in Lending Act Regulation Z General QM Loan Definition Lenders must still consider your DTI ratio or residual income during underwriting, but no specific percentage automatically disqualifies a loan.7eCFR. 12 CFR 1026.43 – Minimum Standards for Transactions Secured by a Dwelling
Across every one of these programs, the ceiling applies to the debts that count — not to utilities. Keep paying the electric bill, and keep it out of your DTI math.