Debt-to-Income (DTI) Ratio Calculator
Calculate your Debt-to-Income (DTI) ratio and check your loan eligibility.
What is the Debt-to-Income (DTI) Ratio Calculator?
A Debt-to-Income (DTI) ratio is a personal finance measure that compares an individual's monthly debt payments to their monthly gross income. Your DTI ratio is the percentage of your gross monthly income (before taxes) that goes toward paying your monthly recurring debts.
Lenders, particularly mortgage lenders, use the DTI ratio as a key metric to assess your ability to manage monthly payments and pay back money you borrow. A lower DTI ratio indicates a good balance between income and debt, making you a more attractive borrower.
Practical Examples & Reference Guide
Here is a comparison of how different DTI ratios impact a borrower's financial standing and loan approval prospects:
| DTI Ratio Range | Status Category | Borrowing Outlook & Eligibility |
|---|---|---|
| 0% – 30% | Good (Green) | Ideal candidate. Excellent loan approval rates and access to best interest rates. |
| 31% – 60% | Moderate (Yellow) | Qualified for most loans, but may need additional financial checks or co-signers. |
| 61% – 100%+ | Bad (Red) | High risk. Lenders may reject applications or charge significantly higher interest rates. |
For example, if your gross monthly income is $6,000 and your total monthly debt payments equal $1,800, your DTI ratio is 30% ($1,800 ÷ $6,000 × 100), putting you in the Good category.
In-Depth Technical Guide
The Mathematical Formula for Debt-to-Income (DTI) Ratio
The formula to calculate your DTI ratio is straightforward:
$$\text{DTI Ratio (%)} = \left( \frac{\text{Total Monthly Debt Obligations}}{\text{Gross Monthly Income}} \right) \times 100$$
Where:
- Total Monthly Debt Obligations: The sum of all recurring monthly debt payments, including rent or mortgage, car loans, student loans, credit card minimums, and other personal liabilities.
- Gross Monthly Income: Your total earnings before taxes and other payroll deductions. This includes base salary, pensions, investment returns, and bonuses.
Front-End vs. Back-End DTI Ratios
When applying for mortgages, lenders look at two types of DTI ratios:
- Front-End DTI Ratio: Also known as the housing ratio, this is the percentage of gross income that goes solely toward housing expenses (mortgage principal, interest, taxes, and insurance).
- Back-End DTI Ratio: This is the comprehensive ratio calculated by our tool. It includes your housing expenses plus all other monthly debts like credit card minimums, car loans, and student loans. Most lenders prioritize the back-end DTI ratio.