What is a good debt-to-income ratio for a mortgage?

Most conventional lenders look for a back-end DTI at or below 36%, though many will approve up to 43%. FHA loans commonly allow up to 50% with compensating factors like strong credit or reserves. The lower your DTI, the better the rate you typically qualify for.

What's the difference between front-end and back-end DTI?

Front-end DTI counts only your future housing payment (principal, interest, property taxes, insurance, plus HOA and PMI) divided by gross monthly income. Back-end DTI adds in all other recurring debts — car loans, student loans, credit-card minimums, child support — divided by the same income. Lenders care more about the back-end number, but use both.

Does my DTI use gross or net income?

Lenders use gross monthly income — what you earn before taxes, 401(k) contributions, and insurance premiums are taken out. Bonuses and overtime usually need a two-year history to count. Self-employed applicants use the average of their last two years of tax returns.

What debts get counted in DTI?

Recurring monthly obligations: mortgage or rent, auto loans and leases, student loans (even if deferred — lenders use 1% of the balance or the income-driven payment), credit-card minimum payments, personal loans, alimony, and child support. Utilities, groceries, insurance premiums, and subscriptions are not counted.

Will paying off a credit card raise my chances of approval?

Yes, paying down revolving balances is the fastest way to lower DTI because it eliminates the monthly minimum payment immediately. Closing the card after paying it off, however, can hurt your credit utilization ratio and score — so pay it down but leave it open until after you close.

How to Calculate Your Debt-to-Income Ratio Before Applying for a Loan

What Debt-to-Income Ratio Actually Means

Debt-to-income ratio (DTI) is a percentage that compares how much of your monthly income is already spoken for by debt payments. If you bring home $8,000 a month in gross income and $2,400 of that goes out to a car loan, student loans, and credit cards, your DTI is 30%. Lenders use this number as a proxy for “can this person take on another payment without falling behind?”

DTI matters more than most borrowers realize. Credit score gets most of the attention, but two applicants with identical 740 scores can get very different mortgage offers if one has a 28% DTI and the other has a 44% DTI. The high-DTI borrower may get a higher rate, a smaller approved loan, or a flat-out denial.

How Lenders Actually Use DTI

Mortgage lenders calculate two DTI numbers. Front-end DTI is your projected housing payment (principal, interest, taxes, insurance, HOA dues, and PMI if applicable) divided by your gross monthly income. Back-end DTIadds every other recurring debt obligation to the top of that fraction.

The classic guideline is the 28/36 rule: housing costs no more than 28% of gross income, total debt no more than 36%. In practice, conventional lenders will often approve loans up to a 43% back-end DTI, and FHA loans can push to 50% with compensating factors like a large down payment or strong cash reserves. Beyond those thresholds, automated underwriting starts denying applications outright.

Even when you qualify with a high DTI, you usually pay for it. Lenders price loans for risk, so a 44% DTI borrower might pay 0.25–0.5 percentage points more than a 28% DTI borrower on otherwise identical files — roughly $15,000–$30,000 in extra interest over the life of a 30-year loan.

How to Calculate Your DTI in Five Minutes

Pull up your most recent pay stub and a list of every fixed debt payment you make each month, then do this:

Find gross monthly income. That's your pre-tax pay. If you're salaried at $96,000, that's $8,000 per month. Hourly workers should use the average of the last 12–24 months. Self-employed applicants use two-year average net earnings from Schedule C or K-1s.
List your minimum monthly debt payments. Auto loans, student loans (use 1% of the balance if deferred), credit-card minimums, personal loans, child support, alimony.
Add the proposed housing payment. Principal + interest + taxes + insurance + HOA + PMI. Use a mortgage calculator to estimate.
Divide and convert to a percentage. Total monthly debts ÷ gross monthly income × 100.

Worked example: Gross income is $8,000/month. Existing debts are a $450 car payment, $200 student loan, and $75 credit card minimum — $725 total. The projected mortgage payment with taxes and insurance is $2,300. Total monthly obligations are $3,025. Back-end DTI is $3,025 ÷ $8,000 = 37.8%. That's on the edge of the 36% conventional sweet spot but still inside the 43% qualifying limit.

Front-end DTI for the same person is $2,300 ÷ $8,000 = 28.75%, just over the 28% guideline. A lender looking at this file would likely approve but might suggest a slightly smaller loan or a larger down payment.

What to Do If Your DTI Is Too High

DTI is a fraction, so you have two levers: shrink the top (debt) or grow the bottom (income). Debt-side fixes work faster:

Pay off the smallest revolving balances first. A $1,500 credit-card balance with a $75 minimum payment hurts your DTI more per dollar than a $20,000 auto loan with a $450 minimum.
Refinance or consolidate high-payment debt. Trading a 36-month auto loan for a 60-month one cuts the monthly payment that hits DTI, even though it costs more in total interest.
Avoid new debt for six months before applying. A new car loan or financed couch can move your DTI four or five points overnight and tank an otherwise solid application.
Get a co-borrower. Adding a spouse or family member's income (and debts) to the application can pull a borderline DTI back into the qualifying range.
Lower your target loan amount. Buying a less expensive home, putting more money down, or accepting a longer term all reduce the housing payment that goes into front-end DTI.

If your back-end DTI is above 50%, the realistic path is usually 6–12 months of debt paydown before reapplying. Pulling DTI from 52% to 38% in that window often unlocks a better rate than rushing into an FHA loan at a stretched ratio.