See your front-end and back-end DTI in real time and which loan programs you qualify for.
Add your income and monthly debt obligations to see the exact ratio lenders will run on your file — plus the loan programs your DTI clears today.
Direct answers to the most common questions, in plain language. Skim if you're in a hurry; dig deeper below.
Under 36% back-end is the conventional sweet spot.
A back-end DTI under 36% is the conventional comfort zone. FHA allows up to 43% and some programs stretch to 50%, but lower is always better — every dollar of monthly debt is a dollar you can't put toward a higher home price or savings.
Total monthly debt payments divided by gross monthly income.
DTI = (sum of all monthly debt payments) ÷ gross monthly income, expressed as a percentage. Lenders separate it into two ratios: front-end (just housing) and back-end (housing plus all other debt).
Gross — before tax and deductions.
Lenders use gross monthly income (before taxes, 401(k), insurance). Use the same number on this calculator so your DTI matches what a lender will quote you.
Anything that shows up on your credit report as a recurring obligation.
Include mortgage or rent, auto loans, student loans, minimum credit card payments, personal loans, and child support or alimony. Skip utilities, groceries, subscriptions, and insurance — those are expenses, not debt.
The mechanics in short answers — no jargon, no upsell.
Mortgage or rent, auto, student loans, credit-card minimums, personal loans, and court-ordered payments all count as debt obligations.
Pre-tax income from all sources — W-2 base, contractor income (averaged over 2 years), bonuses, rental income, and reliable side income.
Front-end is just housing. Back-end adds every other debt. Most conventional lenders cap front-end at 28% and back-end at 36% for the best rates.
A low DTI signals capacity to absorb shock. Lenders price risk into your rate — borrowers under 36% routinely get the cleanest pricing.
Designed so anyone can model their situation in under a minute, with or without a finance background.
Front-end (housing only) and back-end (all debt) — the two numbers every underwriter cares about.
Conventional, FHA, VA, and jumbo thresholds shown live so you know which doors are open.
Add a proposed mortgage or car loan and see your DTI move in real time before you sign.
A clear breakdown shows which obligation is eating your borrowing capacity.
Avoid the rejection that comes from finding out your DTI is 47% on the application.
See exactly how much DTI drops when a specific debt clears.
Everything you might ask before, during, or after using this tool.
Most conventional lenders prefer a back-end DTI of 36% or lower, but will go to 43–45% with strong compensating factors (good credit, large down payment, reserves). FHA loans allow up to 43% by default and stretch to 50% with manual underwriting. VA loans use a residual-income test in addition to DTI.
Indirectly. Mortgage rates are based on credit score, LTV, and loan type — not DTI directly. But a high DTI can disqualify you from the best loan tier or force you to a higher-cost program. Keeping DTI under 36% keeps the most doors open.
Yes, if you have meaningful balances. Even paying down to below 30% utilization can boost your credit score by 20–40 points and lower your minimum payments, which directly improves DTI. Don't close the cards — closing reduces total credit limit and hurts utilization.
No. DTI only counts contractual debt obligations that appear on your credit report — mortgage, auto, student loans, credit cards, personal loans, and court-ordered payments. Phone bills, streaming subscriptions, groceries, and insurance are expenses, not debt.
Three levers: pay off small revolving balances (raises score and cuts minimum payments), refinance high-rate debt into a longer term to drop the monthly, or increase income with a documented side stream that has a 2-year history. Avoid taking on any new debt 90 days before applying.
It's near the upper limit. A 50% back-end DTI puts you in manual-underwriting territory for FHA loans and disqualifies most conventional programs. Possible but stressful — you'll need compensating factors and the cleanest pricing won't be available.
For a home purchase, yes — the proposed PITI is what underwriters plug into your back-end ratio. That's why this calculator has a "proposed housing payment" field: it shows you the DTI a lender would actually compute.
DTI is the cleanest single proxy for "can this borrower absorb shock and keep paying?". A low DTI means a job loss, medical bill, or rate hike has slack to land in. Lenders price that resilience directly — it shows up in rate, program eligibility, and reserves required.
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Credit score tells a lender how you have behaved. DTI tells them how much room you have to keep behaving that way. A 780 score with a 48% DTI gets worse pricing than a 720 score at 28% — the score reflects the past, the DTI reflects the runway.
That is also why DTI is what shifts when you tweak your application. Boosting credit takes months. Lowering DTI can happen this afternoon by paying down one card.
Front-end is your proposed housing payment (PITI plus HOA) divided by gross monthly income. Lenders historically wanted this under 28%.
Back-end adds every other monthly debt obligation — cars, student loans, credit-card minimums, personal loans. Most lenders cap this at 36% for the best pricing, with stretch to 43% for FHA and 50% for some manually-underwritten files.
Pay off the smallest revolving balances first — credit cards and personal loans where the minimum payment is a big drag relative to the principal. Each closed account drops both the payment and (after a billing cycle) the credit-report obligation.
Avoid opening new accounts in the 90 days before applying. Even a 0% balance transfer adds an inquiry, a tradeline, and possibly a payment that shows up at the wrong moment.
Two short notes worth reading before you trust any number on this page.
Your loan amount, rate, and prepayment inputs never leave your device. No accounts, no cookies on your numbers, no analytics on the values you type. Disconnect from the internet and it still works.
We are not a bank, NBFC, advisor, broker, or distributor of any financial product. The numbers shown here are estimates for educational purposes only, based on the inputs you provide.
Results are not financial, legal, or tax advice. Please consult a qualified professional before any decision about your loan, investments, or personal finances. Actual loan terms and charges depend on your bank and individual circumstances.
