Find out if your DTI ratio qualifies you for a mortgage — instantly
Prospective homebuyers checking mortgage eligibility, borrowers who have been denied and want to understand why, and anyone evaluating their debt situation before applying.
Calculate your front-end (housing only) and back-end (all debts) debt-to-income ratios to determine if you meet standard lender guidelines for mortgage approval.
$7,000 gross monthly income, $350 car payment, $200 student loan, $1,750 target mortgage → back-end DTI of 32.9%, comfortably under the 36–43% limit for most lenders.
💡 What counts as debt? Include all recurring minimum monthly payments — car, student loans, credit cards, personal loans, child support, alimony. Do NOT include utilities, groceries, or insurance premiums.
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Your debt-to-income ratio (DTI) is the percentage of your gross monthly income that goes toward paying your monthly debt obligations. It is one of the most critical numbers lenders examine when you apply for a mortgage — arguably more important than your credit score for determining how much you can borrow.
DTI answers a simple question: Out of every dollar you earn before taxes, how many cents are already committed to debt payments? A low DTI signals financial flexibility; a high DTI signals risk to the lender.
Lenders evaluate two separate DTI ratios simultaneously:
Both ratios matter. Even if your back-end DTI is below 43%, a front-end DTI above 28% may trigger additional scrutiny. Lenders use whichever ratio creates the greatest constraint on your borrowing.
The formula is straightforward:
For example: If you earn $7,000/month gross and your total monthly debts including the new housing payment are $2,800, your back-end DTI is 40% ($2,800 ÷ $7,000 = 0.40 × 100). Most lenders would approve this.
Debts included in DTI: Mortgage or rent payments, car loans, minimum credit card payments, student loans (even if in deferment — lenders impute a payment), personal loans, co-signed loans, child support, and alimony.
NOT included in DTI: Utilities (electric, gas, water), cell phone bills, grocery costs, health insurance premiums, car insurance, retirement contributions (401k, IRA), and general living expenses. These are real costs but lenders exclude them from the formal DTI calculation.
Different loan programs have different DTI ceilings. Conventional loans backed by Fannie Mae or Freddie Mac typically allow up to 45%–50% with automated underwriting approval (DU/LP). FHA loans are the most flexible, allowing back-end DTI up to 57% with strong compensating factors like a credit score above 620 and documented reserves. VA loans have no hard DTI cap but the VA's residual income requirement effectively limits most borrowers to around 41%. USDA loans generally cap at 41% but can go higher with compensating factors.
Every $100 per month in new debt reduces your maximum home purchase price by roughly $10,000–$15,000 depending on interest rates. Conversely, paying off a $400/month car loan can add $50,000–$60,000 to your buying power. Understanding and actively managing your DTI before applying gives you a significant advantage in the mortgage process — and can save you tens of thousands of dollars over the life of the loan.
Get your accurate debt-to-income ratio in under a minute
Input your gross monthly income — the amount you earn before taxes and deductions. If self-employed, use your average net income from the last two years (as lenders typically do).
Enter your proposed monthly housing cost — the full PITI payment (principal + interest + property taxes + homeowners insurance). Include HOA fees if applicable.
Enter every recurring monthly debt obligation: car loans, student loan payments, credit card minimums, personal loans, child support, and any other installment or revolving debt.
See your front-end DTI (housing ratio) and back-end DTI (all debts ratio) instantly. The visual meter shows exactly where you stand relative to lender approval thresholds.
Check the status badge — Excellent, Good, or Needs Attention. If your DTI is high, try adjusting your housing payment or adding a debt payoff to see how it changes your ratio.
Use the Save & Share button to generate a shareable link to your results. Useful for comparing scenarios with a partner or sharing with your lender or mortgage broker.
The short answer: under 36% is excellent, under 43% is the conventional threshold.
By loan type:
DTI thresholds and what they mean for you:
Compensating factors that help at higher DTI:
DTI = Total Monthly Debts ÷ Gross Monthly Income × 100
Step-by-step example:
Your income: $6,500/month gross salary
Your monthly debts:
Back-end DTI calculation:
$2,175 ÷ $6,500 = 0.3346 × 100 = 33.5% DTI
Front-end DTI calculation:
$1,500 ÷ $6,500 = 0.2308 × 100 = 23.1% front-end DTI
Result: Both ratios are well within conventional loan limits. This borrower would likely qualify for most loan programs at competitive rates.
What if DTI were 46%? With $2,990 in debts on $6,500 income, conventional approval requires automated underwriting. FHA remains accessible. VA approval depends on residual income. Improvement strategies: pay off the car loan ($350 savings → DTI drops to 40.6%).
Lenders count any recurring obligation that appears on your credit report or is documented in your loan application.
INCLUDED in DTI (monthly obligations):
NOT INCLUDED in DTI:
Important nuance — credit cards: Lenders use the minimum payment shown on the statement, not your actual monthly spending or payoff amount. If your minimum is $25 but you pay $500, only $25 counts in DTI.
Yes. A 43% DTI is not a hard wall — it is a guideline threshold, not a maximum for all programs.
Approval pathways with DTI above 43%:
1. Conventional with automated underwriting (DU/LP):
2. FHA loans:
3. VA loans:
4. Non-QM / portfolio loans:
Strategies to offset high DTI:
Student loans count in DTI even when in deferment, forbearance, or on income-based repayment.
How different loan programs handle deferred student loans:
Conventional loans (Fannie Mae):
Conventional loans (Freddie Mac):
FHA loans:
VA loans:
Strategies if student loans hurt your DTI:
Real example: $60,000 in student loans at $0 IBR payment. Fannie Mae uses $600/month. Freddie Mac uses $300/month. On a $6,000 income, that's 10% vs. 5% of your DTI allocation — a meaningful difference for qualification.
Faster than most people think — some changes take effect in 30–60 days.
Immediate impact (1–2 months):
Medium-term impact (3–6 months):
What NOT to do:
The $1,000 payoff math: If you have $5,000 in credit card debt with a $100/month minimum, paying it off eliminates $100/month from your DTI. On a $5,000 income, that's a 2% DTI improvement — which can add $10,000–$15,000 in buying power.
Best play — 90 days before applying:
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