Debt-to-Income (DTI) Calculator
Get your front-end and back-end ratios, see how every major lending program reads them, and the exact dollars of monthly debt to eliminate — computed the way lenders actually compute it.
- Lender-accurate mortgage mode
- Live what-if scenarios
- Nothing saved or submitted
What do you want to check?
Income
Before taxes and deductions — include all stable income sources. The period toggle applies to both fields.
Housing
Monthly debt payments
Enter what a lender would count — deferred loans are often counted at 0.5–1% of balance.
Minimums only — not what you actually pay.
Other mortgages, IRS payment plans, etc.
Don't include utilities, groceries, insurance, phone, or streaming — lenders don't count them in DTI.
Your DTI appears here
Enter your income and monthly debts — results update live. Nothing is saved or submitted.
What is a debt-to-income ratio?
DTI is your monthly debt payments divided by your gross (pre-tax) monthly income. It comes in two flavors: front-end counts housing alone; back-end counts housing plus every other contractual debt — auto, student loans, card minimums, personal loans, support payments. What it deliberately ignores: utilities, groceries, phone, insurance, taxes. DTI isn't a budget — it's a lender's capacity gauge, and it only counts obligations a lender can see on paper.
Why lenders use it
Credit scores measure willingness to repay — your history of doing it. DTI measures capacity — whether the math of your income can absorb another payment. Both gates must open. The famous 43% line comes from the CFPB's original Qualified Mortgage rule; the 2021 rule replaced that hard cap with a price-based test, but 43% survives as the reference line underwriters still reach for. It's a benchmark, not a law.
What DTI do lenders actually require?
The classic 28/36 rule is the healthy planning target. Conventional programs (Fannie Mae, Freddie Mac) typically ceiling at 45%, stretching to 50% only with automated-underwriting strengths. FHA benchmarks 31/43 and can extend to 46.9/56.9 with TOTAL Scorecard approval — the most DTI-tolerant mainstream path. VA treats 41% as a guideline and decides on residual income instead. The calculator's qualification snapshot applies all of these to your exact number.
How to lower your DTI — in dollars, not advice-speak
Only two things move the ratio: the payments (numerator) or the income (denominator). The counterintuitive truth: paying a balance down barely moves DTI — minimum payments shrink slowly — but paying one debt to zero deletes its entire payment from the math. That's why eliminating one $240 card payment can outdo throwing thousands at a big balance. Consolidation lowers payments by restructuring; settlement deletes payments by resolving debts for less. The gap analysis above tells you the exact monthly-dollar target either path must hit.
When high DTI is the symptom, not the problem
A 45%+ ratio usually isn't a discipline failure — it's the arithmetic of modern prices. And it creates a trap: the consolidation loan that would fix your DTI gets denied because of your DTI. If you've hit that wall — especially a refinance denied for too much debt — the fastest exit is usually eliminating whole payments, not shuffling them. That's a conversation worth having with a specialist before your next application, not after another denial.
Key Takeaway
Common Mistakes to Avoid
Using take-home pay instead of gross income
DTI is always computed on pre-tax income. Using net pay inflates your ratio by 20–30% and makes you look worse than any lender would score you.
Counting utilities, insurance, and subscriptions as debt
Lenders count contractual debt obligations only. Adding living expenses produces a scary — and wrong — number.
Entering what you actually pay on cards instead of the minimums
Underwriting uses the minimum payment on your statement. If you pay $400 on a card with a $140 minimum, DTI counts $140.
Treating 43% as a legal cutoff
The old QM cap was replaced in 2021 by a price-based test. 43% remains a common reference line — programs approve above it every day with the right file.
Authoritative references
The CFPB's plain-English explainer, "What is a debt-to-income ratio?", covers what counts and why it matters. For the 43% history and what replaced it, see the CFPB's Qualified Mortgage explainer. And for VA's residual-income approach — the reason 41% is a guideline, not a cap — the VA Lenders Handbook (M26-7) is the source underwriters use.
DTI questions, answered
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