What Is a Good Debt-to-Income Ratio? DTI Explained
By Calqpro Editorial Team · April 20, 2026 · 5 min read
Debt-to-income ratio (DTI) is one of the most important numbers in personal finance — and most people don't know theirs. Lenders use it to decide if you can afford to take on more debt. A high DTI can block you from a mortgage, car loan, or personal loan even if your credit score is perfect.
How to Calculate Your DTI
DTI is simple: divide your total monthly debt payments by your gross monthly income.
Example: You earn $6,000/month before taxes. Your monthly debts: car payment $400, student loan $300, credit card minimums $150, future mortgage payment $1,500. Total debt: $2,350.
DTI = $2,350 ÷ $6,000 = 39.2%
Front-End vs Back-End DTI
Lenders actually calculate two DTI ratios:
- Front-end DTI: Housing costs only (mortgage + taxes + insurance + HOA) ÷ gross income. Ideal: below 28%.
- Back-end DTI: All monthly debts including housing ÷ gross income. Ideal: below 36%. Max for most loans: 43%.
DTI Ranges and What They Mean
| DTI Range | Rating | What It Means |
|---|---|---|
| Below 36% | Excellent | Easy approval, best rates |
| 36%–43% | Acceptable | Most lenders approve, standard rates |
| 43%–50% | Risky | Some lenders, higher rates, tighter terms |
| Above 50% | High Risk | Most conventional lenders decline |
How to Lower Your DTI Before Applying for a Mortgage
You have two levers: reduce debt or increase income. The fastest moves:
- Pay off small balances completely — eliminating a $150/month car payment drops DTI faster than paying down the mortgage
- Don't open new credit accounts in the months before applying
- Pay down credit card balances (minimum payments count toward DTI)
- Add income sources — part-time work, freelance income, or rental income can be included if documented
Even dropping your DTI from 45% to 41% can be the difference between approval and rejection.
Calculate your exact DTI ratio
Use the DTI Calculator →