How to use it
- Enter your total monthly debt in USD.
- Enter your gross monthly income in USD (must be > 0).
- Click Calculate.
- Read the percentage result and compare to lender guidelines.
What it does – The Debt‑to‑Income (DTI) calculator takes your total monthly debt payments and your gross monthly income, then instantly shows the percentage of income that goes to debt.
Why it matters – Lenders use DTI to gauge repayment capacity; a lower ratio usually means better loan terms.
How to read it – A DTI of 20% means one‑fifth of your income covers debt, while 40% indicates a heavier burden. Most mortgage programs prefer below 36%, and credit cards often recommend staying under 30%.
Tracking your DTI over time helps you see the impact of paying off a loan or adding a new car payment. Compare scenarios by entering different debt amounts before you commit to a major purchase. The calculator works with any currency, but here we show USD examples.
Keep the result in a spreadsheet to monitor progress month by month, and aim for a ratio that aligns with your financial goals.
Pro tips
- Round debt and income to the nearest dollar to avoid tiny percentage shifts.
- If you have seasonal income, use an average of the last 12 months.
- Enter debts before taxes; the calculator uses gross income.
- A DTI above 40% often signals a need to reduce debt before applying for a loan.
Real-life examples
- A first‑time homebuyer wants to know if their mortgage application will meet lender limits.
- A freelancer checks whether taking on a new client project will keep their debt load manageable.
- Someone planning to refinance credit cards calculates if their current ratio qualifies for a lower‑interest loan.
Case study
Maria earned $5,000 gross each month and had $2,200 in loan and credit‑card payments. The calculator showed a 44% DTI, prompting her to pay off a personal loan. After reducing debt to $1,200, her DTI dropped to 24%, allowing her to qualify for a mortgage with a better rate.