DTI Calculator
Calculate your debt-to-income ratio and see how you qualify across Conventional, FHA, and VA loan programs.
Monthly Gross Income
Monthly Debts
Your DTI Ratios
Program Guidelines
Payment Breakdown
What Can I Qualify For?
Based on your income and non-housing debts, here's the maximum housing payment for each program:
About the DTI Calculator
The debt-to-income (DTI) ratio is one of the most critical factors mortgage lenders evaluate when determining your eligibility for a home loan. This calculator helps you understand where you stand by computing both your front-end DTI (housing expenses relative to income) and back-end DTI (all debts relative to income). Simply enter your monthly gross income from all sources and your recurring monthly debt obligations, and the calculator instantly shows your ratios alongside Conventional, FHA, and VA program guidelines. You will also see the maximum housing payment you could qualify for under each program based on your current income and non-housing debts. Understanding your DTI before applying for a mortgage allows you to identify areas for improvement — such as paying down credit cards or increasing income — so you can position yourself for the best possible loan terms and interest rates.
Frequently Asked Questions
What is debt-to-income ratio?
Debt-to-income ratio (DTI) is a personal finance metric that compares your total monthly debt payments to your gross monthly income. Lenders use DTI to evaluate your ability to manage monthly payments and repay borrowed money. It is expressed as a percentage — for example, if you earn $6,000 per month and have $2,400 in total debt payments, your DTI is 40%. A lower DTI signals to lenders that you have a healthy balance between debt and income, making you a less risky borrower.
What DTI do I need for a mortgage?
DTI requirements vary by loan program. Conventional loans typically allow a maximum back-end DTI of 45% to 50%, depending on credit score and other compensating factors. FHA loans are more flexible, permitting DTI ratios up to 43% standard and up to 57% with strong compensating factors like cash reserves or minimal payment increase. VA loans do not have a hard DTI cap but use 41% as a benchmark; borrowers above that threshold must demonstrate sufficient residual income. Getting your DTI below 36% is generally considered ideal for the best rates and terms.
What's the difference between front-end and back-end DTI?
Front-end DTI, also called the housing ratio, measures only your housing-related expenses (mortgage principal, interest, taxes, and insurance) as a percentage of gross monthly income. Back-end DTI includes all of your monthly debt obligations — housing costs plus auto loans, student loans, credit card minimums, personal loans, child support, and any other recurring debts. Most lenders focus primarily on back-end DTI for qualification purposes, but some programs like FHA also set guidelines for front-end DTI, typically around 31% to 40%.
Important Disclosures: Studio 1003 is a technology platform, not a lender, broker, or financial advisor. This tool is provided for informational and educational purposes only and does not constitute a commitment to lend, pre-approval, or loan offer. FHA and VA rates shown are estimated based on current market data and may differ from actual lender rates. Property taxes, insurance, and closing cost estimates are approximations based on state and county averages and may vary. Final loan eligibility, terms, and costs are subject to underwriting approval and official disclosures. APR and closing cost figures will be finalized on your official Loan Estimate and Closing Disclosure. Always consult with a licensed mortgage professional before making financial decisions.