Debt to Income Ratio Calculator

What Is Debt-to-Income Ratio (DTI)?

Your debt-to-income ratio (DTI) is the percentage of your gross monthly income that goes toward paying debts. It is the single most important number lenders look at when deciding whether to approve a mortgage or other major loan. A lower DTI signals that you have room in your budget to handle a new mortgage payment, while a high DTI suggests your finances are already stretched.

DTI is calculated with a straightforward formula:

DTI = Total Monthly Debt Payments ÷ Gross Monthly Income × 100

For example, if you earn $6,000 per month before taxes and your total monthly debt payments add up to $2,100, your DTI is 35% ($2,100 ÷ $6,000 = 0.35).

Front-End DTI vs. Back-End DTI

Lenders actually calculate two separate DTI figures:

• Front-end DTI (housing ratio): Only your proposed housing costs — mortgage principal and interest, property taxes, homeowner's insurance, and HOA fees if applicable. Most conventional lenders want this at or below 28%.
• Back-end DTI (total DTI): All monthly debt obligations, including housing plus car loans, student loans, minimum credit card payments, personal loans, and any other recurring debt. This is the number lenders focus on most and the one this calculator highlights.

DTI Ranges: What Do They Mean?

• Below 28% — Excellent: You are in great shape. Nearly all loan programs will approve you, and you may qualify for the best interest rates.
• 28–36% — Good: Still a strong position. Conventional loan guidelines are met, and you have solid borrowing power.
• 36–43% — Fair: Acceptable for FHA and some conventional lenders, but you may face stricter scrutiny or higher rates. Consider paying down debt before applying.
• Above 43% — High: Most conventional and government-backed programs will deny you at this range. Focus on reducing monthly obligations before pursuing a mortgage.

Loan-Specific DTI Limits

Different mortgage programs use different cut-offs:

• Conventional (Fannie Mae / Freddie Mac): Back-end DTI of 36% or less preferred, maximum 45% with strong compensating factors. Front-end DTI should be 28% or less.
• FHA: Maximum back-end DTI of 43% under standard guidelines, up to 50% with compensating factors (strong credit, reserves, or large down payment) through automated underwriting.
• VA (veterans): No hard cap but a 41% back-end DTI guideline. VA loans are more flexible — higher DTI may be approved with residual income analysis.
• USDA (rural development): Back-end DTI of 41% maximum under standard guidelines, 44% with compensating factors.

How to Improve Your DTI

There are only two ways to lower your DTI: increase your gross income or reduce your monthly debt payments. Practical strategies include:

• Pay off or pay down credit cards and installment loans before applying
• Avoid taking on new debt (car loans, personal loans) in the 6–12 months before applying
• Consider a less expensive home to reduce the proposed housing payment
• Add a co-borrower with income but few debts to boost qualifying income
• Refinance high-payment loans at a lower rate or longer term to reduce monthly obligations

What Counts as Debt for DTI?

Lenders count recurring monthly debt obligations that appear on your credit report. This includes mortgage or rent payments, car loans, student loans, minimum credit card payments, personal loans, child support, and alimony. They do not count utilities, insurance premiums (except homeowner's insurance in the housing payment), cell phone bills, groceries, or subscription services.

Gross Income vs. Net Income

DTI always uses gross income — your earnings before taxes, health insurance premiums, 401(k) contributions, and other deductions. If you are salaried, divide your annual salary by 12. If self-employed, lenders average your taxable income from the past two years of tax returns. Freelancers and contract workers should use the net profit figure from Schedule C or Schedule E.