Debt-to-Income Ratio: What It Is & How to Calculate It

Understanding your debt-to-income ratio (DTI) is one of the most important steps in managing your finances. Whether you’re applying for a mortgage, personal loan, or simply trying to get your budget under control, your DTI gives lenders — and you — a clear picture of your financial health.

Use the calculator below to quickly work out your debt-to-income ratio and see where you stand.

Debt to Income Ratio Calculator
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Excellent! While you should pay off your debt as soon as possible, this debt to income ratio should allow you to live the lifestyle you want without major constraints.
Healthy. You should avoid incurring more debts, and might have a problem getting approved for a mortgage or yet another loan. Still, you are in a relatively good situation.
Troubling. You probably won't get approved for any additional loans; you should start working on a plan that will help you reduce your debts.
Dangerous. Such a debt to income ratio indicates financial trouble. You should devote as much money and energy as possible to pay off your loans.
Extremely Dangerous. More than half of your income is used to pay off debts and mortgages. If you're not following a strict payment plan yet, don't hesitate to consult a financial advisor and get professional help.

What Is Debt-to-Income Ratio?

Your debt-to-income ratio is the percentage of your monthly income that goes toward paying debts. This includes things like:

  • Mortgage or rent payments
  • Credit card repayments
  • Personal loans
  • Car finance
  • Student loans

It’s a simple but powerful metric that helps lenders assess how much additional debt you can realistically handle.

Why Your DTI Ratio Matters

Lenders use your DTI ratio to determine risk. The higher your ratio, the more of your income is already committed — which can make you a riskier borrower.

In general:

  • Below 30% – Healthy
  • 30% to 40% – Manageable
  • 40%+ – High risk

If your DTI is too high, you may:

  • Be denied credit
  • Receive higher interest rates
  • Qualify for smaller loan amounts

How to Calculate Debt-to-Income Ratio

You can calculate your DTI ratio using this formula:

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

Step-by-step:

  1. Add up all your monthly debt payments
  2. Calculate your gross monthly income (before tax)
  3. Divide your debt by your income
  4. Multiply by 100 to get a percentage

Or skip the manual maths and use our calculator above for an instant result.

What Is a Good Debt-to-Income Ratio?

A “good” DTI depends on the type of credit you’re applying for, but generally:

  • Under 30% – Strong financial position
  • 30–36% – Acceptable for most lenders
  • 36–43% – Borderline (common mortgage limit)
  • Above 43% – Likely to face restrictions

Keeping your DTI low improves your chances of approval and helps you secure better rates.

How to Improve Your Debt-to-Income Ratio

If your DTI is higher than you’d like, here are practical ways to reduce it:

1. Pay Down Existing Debt

Focus on high-interest balances first to reduce monthly obligations.

2. Increase Your Income

Bonuses, side income, or salary increases can lower your ratio quickly.

3. Avoid Taking on New Debt

New credit increases your monthly commitments and raises your DTI.

4. Refinance or Consolidate

You may be able to reduce monthly payments through better terms.

Debt-to-Income Ratio vs Credit Score

Your DTI and credit score are both important — but they measure different things:

  • DTI = your ability to manage payments
  • Credit score = your history of managing credit

Lenders often look at both together when making decisions.

FAQs

What debts are included in DTI?

Most recurring monthly obligations, including loans, credit cards, and housing costs.

Should I use gross or net income?

DTI is typically calculated using gross (pre-tax) income.

Does DTI affect my mortgage approval?

Yes — it’s one of the key factors lenders use to assess affordability.