← Back to Home

DTI Calculator

Calculate your Debt-to-Income ratio to see if you qualify for a mortgage

Total housing payment including principal, interest, taxes, insurance, and HOA fees

$

Car loans, credit cards, student loans, personal loans (minimum payments)

$

Total income before taxes and deductions

$

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

Your Debt-to-Income (DTI) ratio is one of the most important factors lenders consider when evaluating your mortgage application. It's a simple percentage that compares your monthly debt obligations to your gross monthly income (income before taxes and deductions).

Formula: DTI = (Total Monthly Debt Payments ÷ Gross Monthly Income) × 100

Two Types of DTI Ratios

1. Front-End Ratio (Housing Ratio)

This ratio only considers your housing expenses: principal, interest, property taxes, insurance, and HOA fees.

Formula: Housing Expenses ÷ Gross Monthly Income × 100

Preferred Range: Most lenders prefer 28% or less

2. Back-End Ratio (Total DTI)

This ratio includes ALL your monthly debt obligations: housing expenses plus car loans, credit cards, student loans, personal loans, and any other recurring debt payments.

Formula: (Housing Expenses + Other Debts) ÷ Gross Monthly Income × 100

Preferred Range: Most lenders prefer 43% or less

Why DTI Matters

Risk Assessment: Lenders use DTI to evaluate how much debt you can reasonably handle

Loan Approval: A lower DTI increases your chances of approval and may qualify you for better rates

Financial Health: A lower DTI means more financial flexibility for savings, emergencies, and lifestyle

Interest Rates: Borrowers with lower DTI ratios often qualify for lower interest rates

Tips to Improve Your DTI

Pay Down Debt: Focus on paying off high-interest debts like credit cards first

Increase Income: Take on a side job, ask for a raise, or add a co-borrower with income

Avoid New Debt: Don't take on new loans or credit cards before applying for a mortgage

Consider a Larger Down Payment: This reduces your loan amount and monthly mortgage payment

Wait to Buy: If your DTI is too high, spend a few months paying down debt before applying

Remember: These are general guidelines. Lenders consider many factors beyond DTI, including credit score, employment history, assets, and loan type. Consult with a qualified mortgage professional to understand your specific situation.