A good debt-to-income ratio is 36% or below, and 43% is the common upper limit for a mortgage. The formula is total monthly debt payments divided by gross monthly income, shown as a percent. On $6,000 of gross monthly income, staying under $2,160 in total debt payments keeps you at 36% or better.
A good debt-to-income ratio is 36% or below, and 43% is the common upper limit for the safest mortgages. DTI is the share of your monthly income that goes to debt payments, and lenders use it to decide how much more you can safely borrow. The formula is one line: total monthly debt payments divided by gross monthly income, shown as a percent. On $6,000 of gross income, "good" means keeping total debt payments under $2,160 (36%), with housing alone under $1,680 (28%).
Most debt advice focuses on interest rates. But your debt-to-income ratio is the number a lender checks first, and it quietly decides whether you get approved and at what price. Here is the exact math and the targets to aim for.
1. What Is a Good Debt-to-Income Ratio?
Debt-to-income ratio, or DTI, is how much of your gross monthly income already goes to debt payments. Lenders read a low ratio as room to take on more, and a high ratio as a sign you may be stretched. That single number carries a lot of weight in any loan decision, especially a mortgage.
The targets come from the classic 28/36 rule: no more than 28% of your gross income on housing, and no more than 36% on all debt combined. Stay at or under 36% and you're in "good" territory. Push past 43%, the point the Consumer Financial Protection Bureau (CFPB) uses as its Qualified Mortgage benchmark, and most lenders start to hesitate.
2. How Do You Calculate Your DTI?
The formula is one line of division:
DTI = (total monthly debt payments ÷ gross monthly income) × 100
Example: $2,160 in monthly debt payments ÷ $6,000 gross monthly income = 0.36 → 36% DTI.
Two things trip people up. First, use gross income, before taxes, not your take-home pay. Second, only certain items count. What goes in the numerator: rent or mortgage, car loans, student loans, personal loans, child support, and credit card minimum payments. What does not count: utilities, groceries, insurance, taxes, and subscriptions. So a $6,000 card balance with a $120 minimum adds $120 to your DTI, not $6,000.
3. What's the Difference Between Front-End and Back-End DTI?
There are two versions of this number, and lenders look hardest at the second one.
Front-end DTI counts housing costs only, your rent or mortgage payment, as a share of gross income. The 28/36 rule sets the front-end target at 28%. On $6,000 of income, that's a housing payment under $1,680.
Back-end DTI counts every debt payment, housing plus car, student loans, credit card minimums, and the rest. This is the number that matters most for approval, and the 36% target applies here. On $6,000 of income, that's total debt payments under $2,160.
4. What Each DTI Level Means
Here is how different back-end ratios land with lenders. Find your number, and see which zone you're in.
| Back-End DTI | Payments on $6,000 Income | What It Means |
|---|---|---|
| Under 28% | Under $1,680 | Excellent (aim here) |
| 28% – 36% | $1,680 – $2,160 | Good |
| 36% – 43% | $2,160 – $2,580 | Workable, but tightening |
| Over 43% | Over $2,580 | Most lenders hesitate |
The 36% line is the benchmark most advisors quote. Above it you can often still qualify (conventional loans sometimes allow back-end DTI up to 45%, and close to 50% with strong compensating factors like a high credit score and cash reserves; FHA can allow roughly 43% to 50%), but every step lower makes approval easier and your rate better.
43% is the CFPB's Qualified Mortgage benchmark, a widely used upper limit for the safest home loans. Stay at 36% or below and you're comfortably inside the zone lenders like to see.
5. Why Does DTI Matter So Much for a Mortgage?
When you apply for a home loan, the lender isn't just asking whether you can afford the house. They're asking whether you can afford the house on top of everything you already owe. DTI is how they measure that in one number.
Say you're carrying a $500 car payment and $460 in student loan and card minimums on $6,000 of gross income. That's $960 a month, or 16% of your income, before any housing. That leaves room for a housing payment up to about $1,200 to stay at 36% back-end. Trim that existing $960 down, and the house you qualify for gets bigger, or your rate gets better, without earning a dollar more. To map out which balances to attack first, run them through the free debt consolidation calculator.
Want a plan that lowers your DTI on a real timeline?
The Debt Freedom Blueprint walks you through paying down the exact debts that shrink your monthly payments, so your DTI drops step by step.
6. How Do You Lower Your Debt-to-Income Ratio Fast?
Pay off a small loan entirely
This is the fastest single move most people miss. Because DTI counts monthly payments, paying off one small loan removes its whole payment from the numerator at once. Wiping out a $250 car payment on $6,000 of income drops your DTI by more than 4 points in one step, more than shaving a little off several balances.
Pay revolving balances down
As a credit card balance falls, its minimum payment falls too, and it's the minimum that counts in DTI. Lowering balances shrinks both your interest cost and the payment in your ratio. See how a debt consolidation loan works if one payment could replace several higher minimums.
Avoid new debt, and raise income
Don't finance a car or open a new line of credit in the months before you apply for a mortgage; a new payment lands straight in your numerator. And because DTI is a ratio, raising your gross income lowers it even if your debts don't change. Side income, a raise, or documenting all your income sources can all move the number.
7. The Called-Out Moment
You've done everything right. Steady job, good credit score, you pay every bill on time. Then a lender tells you your debt-to-income ratio is 44% and the loan is a stretch, and it feels like the math is punishing you for being responsible. The problem usually isn't your income; it's that several monthly payments are stacking up in the numerator even though each one felt small when you signed for it.
That's the fix hiding in plain sight. You don't have to earn more overnight. Pay off the smallest loan so its full payment leaves your DTI, get the number under 36%, and the same lender sees a different borrower, often within a month or two. You were doing the hard part already; this just makes the ratio show it.
FAQ: Debt-to-Income Ratio
What is a good debt-to-income ratio to buy a house?
For a mortgage, aim for a back-end DTI of 36% or below, which is the classic benchmark under the 28/36 rule. Many lenders will still approve you up to 43%, the CFPB's Qualified Mortgage limit, and conventional loans sometimes allow up to 45%, or close to 50% with strong compensating factors like a high credit score and cash reserves. The lower your DTI, the easier approval and the better your rate.
Does rent count in debt-to-income ratio?
Yes. Your rent or mortgage payment is the single biggest item in DTI, and it is the entire front-end ratio. The 28/36 rule says housing should stay under 28% of your gross monthly income. When you apply for a mortgage, lenders swap your current rent for the projected new house payment when they run the numbers.
Do credit card balances count in DTI or just the minimum?
Only the minimum payment counts, not the full balance. DTI is built from monthly payments, so a $6,000 card balance with a $120 minimum adds $120 to your monthly debt, not $6,000. That is why paying a card down to a lower minimum, or paying a small loan off entirely, can drop your DTI faster than the balance alone would suggest.
What DTI do I need for an FHA loan?
FHA loans are more flexible than conventional loans on DTI. The general target is a back-end ratio around 43%, but FHA can allow closer to 50% when you have compensating factors such as a strong credit score, steady income, or cash reserves. The exact limit depends on the lender and the automated underwriting result.
How can I lower my DTI quickly?
Pay off a small loan entirely so its whole payment leaves the numerator, pay revolving balances down so the minimums that count get smaller, avoid taking on any new loan or financing before you apply, and raise your gross income if you can. Paying off one small car loan or personal loan is often the fastest single move because the entire payment disappears from your monthly debt.
Is 43% DTI too high?
43% is not automatically too high, but it is the edge. It is the CFPB's Qualified Mortgage benchmark and the point where most lenders start getting cautious. You can often still qualify above it (conventional up to about 45%, FHA closer to 50% with compensating factors), but 36% or below is the comfortable zone that keeps approval easy and your budget from feeling stretched.
