There is no single debt-to-income (DTI) percentage that is healthy for everyone. DTI is a lender-facing calculation of monthly debt payments divided by gross monthly income. A lower ratio usually leaves more income available for living costs and emergencies, but a mortgage lender’s maximum is a qualification rule—not a universal household-budget target. The Consumer Financial Protection Bureau (CFPB) puts it plainly: “Different loan products and lenders will have different DTI limits.”
For a quick calculation, divide your required monthly debt payments by your gross monthly income and multiply by 100. If you pay $2,000 toward debt each month and earn $6,000 before taxes, your DTI is 33%. Whether that is acceptable for a particular loan depends on the lender, loan program, underwriting method, debts and income included, credit profile, reserves and other repayment factors.
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What a debt-to-income ratio measures
Debt-to-income ratio expresses how much of your gross monthly income is committed to required debt payments. Lenders use it to estimate whether a borrower can take on another payment while continuing to meet existing obligations. It is generally shown as a percentage: the smaller the percentage, the less of your pre-tax income is tied up in debt.
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Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteDTI is not the same as a complete household affordability test. It normally uses gross income, before taxes, insurance, retirement contributions and other payroll deductions. It also does not automatically include every expense you pay each month. A borrower can meet a lender’s DTI requirement and still have too little cash for utilities, food, childcare, insurance, repairs or savings.
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The CFPB explains the basic measure and why lenders can reach different decisions in its consumer guidance: What is a debt-to-income ratio?
How to calculate your DTI
Use this formula:
DTI = total monthly debt payments ÷ gross monthly income × 100
- List the monthly debt payments the lender is likely to count. Use the required payment, not the balance of each account.
- Calculate gross monthly income. Start with income before taxes and deductions. If you are paid annually, divide annual gross income by 12. A lender may use a different method for bonuses, commissions, overtime, self-employment or other variable income.
- Divide debt payments by gross income.
- Multiply by 100 and round sensibly. Keep the unrounded figure in your worksheet if a lender requests exact documentation.
Worked example
Suppose your monthly payments are $1,500 for housing, $100 for an auto loan and $400 for other debts. Your total monthly debt is $2,000. With $6,000 in gross monthly income:
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$2,000 ÷ $6,000 × 100 = 33.3%
The CFPB uses this same $2,000-and-$6,000 example and reports it as a 33% DTI. That result describes the ratio only; it does not determine whether a specific lender will approve an application.
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Which payments count?
The obligations included in DTI depend on the lender and loan program. Fannie Mae’s consumer guidance identifies housing payments, student loans, car loans, alimony or child support and minimum credit-card payments as examples of monthly debt items. Its examples exclude utilities and phone and internet service. You should ask the lender for its exact list before relying on your own calculation.
| Payment or income item | How it is commonly treated | Important qualification |
|---|---|---|
| Housing payment | Usually included in a mortgage application | The lender may calculate a proposed payment that includes principal, interest, taxes, insurance and applicable association dues. |
| Auto and personal loans | Usually included | The required monthly payment matters more than the outstanding balance. |
| Student loans | Usually included | The lender may use a documented payment or a program-specific calculated amount when the reported payment is very low or deferred. |
| Credit cards | Minimum required payments are generally included | Paying a card in full each month does not necessarily remove the minimum payment from underwriting calculations. |
| Alimony or child support | May be included as a recurring obligation | Provide the payment and legal documentation requested by the lender. |
| Utilities, phone and internet | Often excluded from mortgage DTI examples | They still reduce the money available in your real household budget. |
| Income | Gross monthly income is the starting point | Income must generally be documented and judged stable under the program’s rules. |
Because definitions differ, calculate a personal “cash-flow” version as well: add the expenses you actually pay, including utilities, insurance, groceries, childcare and recurring subscriptions. That second view is not a lender’s DTI, but it is a better test of whether a new payment fits your life.
What percentage is considered healthy?
No official rule sets one healthy DTI for every household. The CFPB says products and lenders have different limits, and federal ability-to-repay rules do not prescribe a single percentage that every creditor must use. A creditor can establish an appropriate threshold while considering DTI alongside residual income and other relevant factors. The applicable regulatory discussion is in Regulation Z § 1026.43.
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Clear out junk files and repair common Windows errorsFree Scan →Scan for outdated or missing drivers - takes under a minuteDriver Scan →For personal budgeting, a lower DTI generally provides a larger cushion. It can leave more gross income available for taxes, essentials, savings and unexpected costs. That does not make a particular percentage universally safe: two households with the same DTI may have very different incomes, family sizes, transportation needs, medical expenses and cash reserves.
For borrowing, “healthy” should therefore mean both of the following:
- Your calculated ratio meets the specific lender and program rules.
- Your remaining take-home income can cover ordinary expenses, reserves and plausible emergencies after the new payment begins.
Mortgage DTI limits depend on underwriting
Mortgage figures often quoted online are program limits, not general financial-health benchmarks. Fannie Mae’s Selling Guide section on DTI, dated April 2, 2025, distinguishes manual underwriting from casefiles evaluated through Desktop Underwriter (DU). The limits are summarized below.
| Fannie Mae context | Maximum total DTI stated in the guide | Conditions and interpretation |
|---|---|---|
| Manually underwritten loan | 36% | Baseline maximum for manual underwriting under the guide’s requirements. |
| Manually underwritten loan with specified strengths | 45% | May be allowed when specified credit-score and reserve requirements are met. |
| DU-underwritten loan casefile | 50% | Maximum allowable DTI for the DU context stated in the guide; the automated decision and other eligibility rules still apply. |
These numbers come from Fannie Mae’s B3-6-02 Debt-to-Income Ratios guide. They cannot be collapsed into a single “good” number. A 50% DU result does not mean every lender will accept 50%, and a 33% ratio does not guarantee approval. Credit history, loan-to-value, reserves, income stability, property characteristics, documentation and the debts counted can change the outcome.
Why manual and automated results differ
Manual underwriting is a person’s review against the program’s documented requirements. DU evaluates a loan casefile using an automated underwriting model and can apply its own eligibility and risk rules. The same borrower may therefore receive different maximums depending on which process the lender uses. Ask which underwriting path applies before comparing your number with a published limit.
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What the often-mentioned 43% figure means
The 43% figure is frequently presented as though it were a universal mortgage ceiling. It is not. The CFPB’s versioned Appendix Q page dated June 1, 2018 describes a 43% ratio in the qualified-mortgage framework covered by that rule text. The page is available at Appendix Q to Part 1026.
That dated, rule-specific reference should not be used as a current personal-finance target or as a guarantee that a loan at 43% will qualify. Current underwriting guides, product rules and creditor policies can use different methods and limits. If a lender mentions 43%, ask which regulation, product and version it is applying.
How to use your DTI before applying
- Build two worksheets. The first follows the lender’s likely debt definitions. The second includes your actual living expenses and savings goals.
- Separate existing and proposed housing costs. For a mortgage, use the lender’s estimated total housing payment rather than only principal and interest.
- Document every income source. Gather pay stubs, tax returns, benefit statements and evidence supporting recurring variable income if requested.
- Ask for the lender’s method. Confirm treatment of student loans, deferred debts, installment loans near payoff, credit-card payments, alimony, child support and self-employment income.
- Run a payment stress check. After adding the proposed payment, check whether your take-home pay still covers essentials, maintenance, insurance, deductibles and an emergency contribution.
- Compare the result with the actual program. A conventional, government-backed, personal-loan or refinancing application may use different limits and calculations. Do not transfer a number from one product to another.
Ways to lower your DTI
Lowering DTI means reducing counted monthly payments, increasing qualifying gross income, or both. The most reliable approach depends on your timing and the lender’s documentation rules.
Reduce required monthly payments
- Pay off a small installment loan if doing so will eliminate its required payment and you can preserve adequate cash reserves.
- Pay down revolving balances; ask how the lender will verify the lower minimum payment and when the change will appear on your credit report.
- Avoid taking on a new auto loan, personal loan or financed purchase before underwriting is complete.
- Refinance only after comparing total cost, term, fees and the effect on the required payment. A smaller payment over a longer term can lower DTI while increasing total interest.
Strengthen qualifying income
- Include all eligible, documentable income rather than estimating cash that a lender cannot verify.
- Ask how overtime, bonuses, commissions, tips, rental income or self-employment income must be documented and averaged.
- Do not count a raise or new job under a lender’s rules until the required proof is available.
Protect the rest of your budget
Do not drain emergency savings solely to reach a lower ratio. A lower DTI with no cash reserve can leave you more vulnerable to a repair, medical bill or income interruption. The lender’s ratio and your household’s resilience are separate decisions.
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What DTI does not tell a lender by itself
DTI does not show the size of your cash reserves, whether income is stable, how much you spend on non-debt necessities, or whether a debt payment is about to change. It also does not capture every risk in a credit report or the details of the property securing a mortgage.
Federal ability-to-repay guidance permits creditors to consider residual income and other factors in addition to DTI. In practical terms, the money left after debt payments—and the borrower’s documented ability to meet ordinary expenses—can matter even when two applications have identical ratios.
When individualized help is useful
If you are unsure which debts to include, comparing loan options, or trying to recover from unaffordable payments, a HUD-approved housing counselor can provide free, one-on-one guidance about finances and housing goals. Fannie Mae describes that service in its Financial Basics frequently asked questions. A counselor can help you build a complete budget and prepare questions for lenders; the counselor does not replace the lender’s underwriting decision.
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