Quick answer
A good debt-to-income (DTI) ratio is under 36%, and under 20% is excellent. Most conventional mortgages allow up to about 43%. Calculate it by dividing your total monthly debt payments by your gross monthly income and multiplying by 100.
Your debt-to-income ratio (DTI) is one of the most important numbers in your financial life — especially when applying for a mortgage. It tells lenders how much of your income goes toward debt payments, and it can make or break your loan approval.
How to Calculate Your DTI
DTI is simple math:
DTI = (Total Monthly Debt Payments ÷ Gross Monthly Income) × 100
Include all monthly debt obligations:
- Mortgage or rent payment
- Car loan payments
- Student loan payments
- Credit card minimum payments
- Personal loan payments
- Child support or alimony
Do NOT include: utilities, groceries, insurance, subscriptions, or other living expenses.
Example:
If your gross monthly income is $6,000 and your total debt payments are $1,800:
DTI = $1,800 ÷ $6,000 × 100 = 30%
What Lenders Consider "Good"
| DTI Range | Rating | What It Means |
|---|---|---|
| Under 20% | Excellent | Best rates and terms. Lenders love you. |
| 20–35% | Good | Manageable debt. Most lenders approve you easily. |
| 36–43% | Acceptable | Maximum for most conventional mortgages. |
| 43–50% | High | Some FHA loans allow this, but it's risky territory. |
| Over 50% | Too High | Most lenders will deny your application. |
The Two Types of DTI
Front-End DTI
Only includes housing costs (mortgage/rent, property tax, insurance). Lenders typically want this under 28%.
Back-End DTI
Includes all debt payments plus housing. Lenders typically want this under 36% for conventional loans, though some allow up to 43–50% for FHA or VA loans.
Why DTI Matters More Than You Think
- Mortgage approval: DTI is the #2 factor (after credit score) in mortgage decisions
- Interest rates: Lower DTI = lower rates = saving thousands over the life of a loan
- Financial flexibility: High DTI means most of your income is locked into debt payments, leaving little room for savings, emergencies, or opportunities
- Stress levels: Research shows high DTI correlates strongly with financial stress and reduced quality of life
How to Lower Your DTI
- Pay down debt aggressively — use the Debt Payoff Calculator to create a plan
- Increase your income — negotiation, side hustles, or career moves
- Avoid taking on new debt before major applications
- Refinance high-rate debt to lower monthly payments
- Pay off small debts completely to eliminate monthly payment obligations
Check Your Financial Health
DTI is one piece of the puzzle. Our Financial Health Score evaluates your complete financial picture across 6 dimensions — including debt management. If you're planning to buy a home, use the Rent vs Buy Calculator to make sure the numbers work at your current DTI.
Frequently Asked Questions
What is the difference between front-end and back-end DTI?
Front-end DTI counts only housing costs and lenders like it under 28%. Back-end DTI counts all debt payments including housing and lenders like it under 36%.
What counts as debt in a DTI calculation?
Rent or mortgage, car loans, student loans, minimum credit card payments, personal loans, and child support or alimony. Utilities, groceries and insurance are not included.
How can I lower my debt-to-income ratio quickly?
Pay down balances with the highest monthly payments, avoid new debt before applying for a loan, and increase income. Refinancing to a lower payment also helps.
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Disclaimer: This article is for educational purposes only and is not financial, tax, or legal advice. Figures are estimates based on publicly available data at the time of writing. Consult a qualified professional about your situation.