SECU Debt-to-Income Calculator

Your DTI ratio is a key number lenders use to decide if you qualify for a loan. Find out yours in seconds and see where you stand.

Monthly Finances

Gross Monthly Income

Enter annual amount; we'll divide by 12.

Monthly Debts

Your DTI Ratio

Debt-to-Income Ratio 0%
Total Monthly Income $0.00
Total Monthly Debt $0.00

What is Debt-to-Income (DTI)?

Your Debt-to-Income (DTI) Ratio is one of the most critical numbers lenders look at when you apply for a mortgage, auto loan, or personal loan. It represents the percentage of your gross monthly income that goes toward paying your monthly debts.

The SECU DTI Calculator helps you see yourself through a lender's eyes. It tells you whether you are in a safe financial zone or if you are overextended.

Why DTI Matters to Lenders

Credit scores measure your history of repaying debt, but DTI measures your capacity to repay new debt. Even with a perfect credit score, a lender may deny your application if your DTI is too high, because it suggests you don't have enough cash flow left over at the end of the month to handle another payment.

How to Calculate Your DTI

The math is straightforward but requires accuracy. To calculate your DTI, divide your total recurring monthly debt payments by your gross monthly income.

DTI = (Total Monthly Debt Payments / Gross Monthly Income) × 100

What to Include in Debt:

  • Rent or Mortgage payments (including taxes/insurance)
  • Car loan payments
  • Student loan payments
  • Minimum credit card payments
  • Alimony or child support payments

Do NOT Include: Living expenses like groceries, utilities, gas, or entertainment.

Interpreting Your Results

What is considered a "good" DTI ratio? While every lender has different criteria, here are the general industry standards:

  • 0% - 35%: Excellent. You have manageable debt and plenty of disposable income. Lenders view you as a low-risk borrower.
  • 36% - 43%: Good. You are eligible for most loans, including Qualified Mortgages, though you may not get the absolute lowest rates.
  • 44% - 49%: Warning Zone. You may find it difficult to get approved for a mortgage. You might be asked to pay off some debt first or provide a larger down payment.
  • 50%+: High Risk. Most lenders will decline new loan applications. At this level, a financial emergency could make it impossible to pay your bills.

How to Lower Your DTI Ratio

If your DTI is higher than you'd like, you have two levers to pull:

  1. Increase Income: This could mean picking up a side hustle, asking for a raise, or including a co-borrower (like a spouse) on the loan application to combine incomes.
  2. Decrease Debt: This is often faster. Use the "Snowball" or "Avalanche" method to pay off smaller loans entirely, eliminating their monthly payment from the equation.

Frequently Asked Questions (FAQ)

1. Does DTI affect my credit score?

No directly. Credit bureaus do not know your income, so DTI is not part of your credit score calculation. However, high debt balances (credit utilization) do hurt your score.

2. What is the maximum DTI for a mortgage?

For a minimal conventional loan, the limit is typically 43%. FHA loans may allow up to 50% or even slightly higher with strong compensating factors (like cash reserves).

3. Should I use gross or net income?

Always use Gross Income (before taxes and deductions). Lenders base their calculations on your gross pay.