Decision planning calculator
Debt-to-Income Ratio Calculator
Compare current and proposed monthly debt payments with the income basis you choose.
Debt and borrowing decisions →Reviewed by Syvoq Editorial Team ·
A useful ratio always says whether income is gross or take-home
Enter every required monthly credit payment and choose the income basis deliberately. A lender or official framework may define a ratio using gross income, while a personal cash-flow check is often clearer against take-home pay. These results are not interchangeable. The calculator repeats the chosen basis so a percentage cannot later be compared with the wrong threshold.
After reading the ratio, focus on income left after debt. That amount must still cover tax if gross income was used, plus food, utilities, transport, dependants, insurance, annual costs, savings, and ordinary surprises. A percentage accepted by a lender can remain uncomfortable for a household with high essential costs or unstable income.
A real-world check
A proposed payment that changes more than the headline ratio
With €4,000 of selected monthly income, €900 of housing debt, €250 of other payments, and a proposed €300 loan, the ratio rises from 28.8% to 36.3%. The additional 7.5 percentage points are useful, but the more practical question is whether the €2,550 left can support the full household budget.
How to read the result
The ratio is relatively low
Still test the payment against essential costs, income stability, and the reserve left afterward.
The proposal creates a large jump
Compare a smaller loan, longer saving period, or lower connected cost before committing.
Payments exceed income
Check inputs immediately and seek lender or qualified debt support before taking new credit.
What this calculator cannot know
- The calculator does not apply any lender underwriting rule, affordability assessment, stress rate, credit history, or legal limit.
- It excludes ordinary living costs and cannot know whether income is stable, shared, seasonal, or available for the full loan term.
What to do next
- Confirm which income basis the comparison or lender uses.
- Place the proposed payment inside a complete take-home budget.
- Test a lower-income month and a higher-payment scenario before applying.
Keep the payoff visible
Track balances and the next debt milestone
See debt beside the rest of your finances and keep the payment plan connected to real cash flow.
Common questions
About this calculator
Should I use gross or take-home income?
Use the basis required by the institution or comparison you are making. For your own budget, take-home income often shows the practical pressure more clearly.
What debt payments should be included?
Include required mortgage, personal loan, car, card, maintenance, or other recurring credit payments. Do not include ordinary living costs in the ratio.
Is there one safe debt-to-income ratio?
No single percentage fits every lender or household. Treat thresholds as screening rules and test the payment inside a complete monthly budget.
How it works
Current debt-to-income divides required monthly debt payments by the selected monthly income basis.
The proposed ratio adds the new payment before dividing by the same income figure.
Gross and take-home ratios are not interchangeable, so the selected basis is repeated in the result.
Educational planning estimate. It does not replace an official calculation or individualized financial, tax, or legal advice.
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