Debt-to-Income Calculator – Free DTI Ratio Calculator

Debt-to-Income Calculator

Calculate your DTI ratio to see how lenders view your borrowing capacity.

Monthly Income
Primary Salary/Wages
$/mo
Secondary Income (Optional)
$/mo
Other Income (Rental, Investments, etc.)
$/mo
Monthly Debt Payments
Mortgage / Rent Payment
$/mo
Property Tax & Insurance (if not in mortgage)
$/mo
HOA Fees
$/mo
Auto Loan Payment
$/mo
Student Loan Payment
$/mo
Personal Loan Payment
$/mo
Credit Card Minimum Payments
$/mo
Child Support / Alimony
$/mo
Other Monthly Debt Payments
$/mo
Your DTI Ratio
0%
Debt-to-Income Ratio
Calculating…
0% 36%
Good
43%
Max
50%+
High
Total Monthly Income
$0
Total Monthly Debt
$0
Front-End DTI
0%
Available for New Debt
$0
Income vs Debt Breakdown
Monthly Income $0
Monthly Debt $0

What is Debt-to-Income Ratio?

DTI ratio compares your total monthly debt payments to your gross monthly income. Lenders use this metric to assess your ability to manage monthly payments and repay debts.

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

For example, if you earn $6,000/month and have $2,100 in monthly debt payments, your DTI is 35%.

DTI Ranges & What They Mean

DTI Range
Rating
Loan Approval
Under 36%
Excellent
Best rates available
36% – 43%
Acceptable
Qualified Mortgage limit
43% – 50%
High
Limited options
Over 50%
Very High
Difficult to qualify

Front-End vs Back-End DTI

Front-End DTI (Housing Ratio): Only includes housing costs (mortgage, taxes, insurance, HOA). Most lenders prefer this under 28%.

Back-End DTI (Total DTI): Includes all monthly debt obligations. This is the number most commonly referred to and should ideally be under 36%.

For Qualified Mortgages (QM), the back-end DTI limit is generally 43%, though some loan programs allow higher ratios with compensating factors.

How to Lower Your DTI

  • Pay down existing debt: Focus on credit cards and loans with the highest payments first.
  • Avoid new debt: Don’t open new credit accounts before applying for a mortgage.
  • Increase your income: A raise, second job, or side income can improve your ratio.
  • Refinance existing loans: Lower interest rates can reduce monthly payments.
  • Pay off small balances: Eliminating a $50/month payment still improves DTI.

What DTI Doesn’t Include

  • Utilities: Electric, gas, water, internet bills are not counted.
  • Insurance: Health, life, and auto insurance (unless part of loan payment).
  • Groceries & daily expenses: Food, gas, entertainment are excluded.
  • Subscriptions: Netflix, gym memberships, etc. don’t count toward DTI.
  • Income taxes: Use gross (pre-tax) income, not take-home pay.