Debt-to-Income (DTI) Ratio Calculator
Your Debt-to-Income (DTI) ratio is a critical financial metric that lenders use to assess your ability to manage monthly payments and repay debts. It represents the percentage of your gross monthly income that goes toward paying debts. A lower DTI shows a good balance between debt and income, making you a more attractive borrower for mortgages, auto loans, and credit cards.
Use this specific calculator to determine your current DTI ratio. Enter your pre-tax monthly income and your various monthly debt obligations below to get an accurate assessment of your financial health.
Calculate Your DTI Ratio
1. Monthly Income
2. Monthly Debt Payments
Understanding Your Debt-to-Income Ratio
The Debt-to-Income (DTI) ratio is a simple math formula that tells lenders how much debt load you carry relative to your income. It doesn't look at your credit score; it only looks at your monthly obligations versus your gross monthly cash flow.
What Debts are Included?
When lenders calculate your DTI, they look at your "back-end" ratio, which includes nearly all significant monthly debts. As listed in the calculator above, this typically includes:
- Housing Costs: Your rent or mortgage payment, including property taxes, homeowners insurance, and any HOA fees.
- Vehicle Payments: Any monthly leases or loan payments for cars, trucks, motorcycles, or recreational vehicles.
- Student Loans: The required monthly payment on all deferred or active student loans.
- Credit Cards: The minimum monthly payments listed on your credit report, not necessarily the full balance.
- Other Obligations: Personal loan repayments, alimony, or child support payments.
Note: Utilities, grocery bills, gas, and discretionary spending are generally NOT included in the DTI calculation.
Why the 43% DTI Threshold Matters
While different lenders have different criteria based on the loan type (e.g., FHA vs. Conventional), the 43% DTI mark is widely considered a critical threshold in mortgage lending. Under the "Ability-to-Repay" rule established after the 2008 financial crisis, most borrowers seeking a Qualified Mortgage must have a DTI ratio of 43% or lower. While it is sometimes possible to get a loan with a higher DTI if you have compensating factors like substantial cash reserves or a very high credit score, remaining below this threshold significantly improves your approval odds and interest rate offers.
Example Calculation
Let's say Jane has a gross annual salary of $72,000, making her gross monthly income $6,000. Her debts are as follows:
- Mortgage (PITI): $1,800
- Car Loan: $350
- Student Loan: $200
- Credit Card Minimums: $100
Her total monthly debt payments are $1,800 + $350 + $200 + $100 = $2,450.
To calculate her DTI: ($2,450 / $6,000) x 100 = 40.83%.
Jane's DTI is approximately 41%, which is considered a manageable level that would likely allow her to qualify for most standard mortgage products.