Estimate French income tax on 2025 income using the official 2026 barème, with the quotient familial (parts), plafonnement and décote.
How to use the French Income Tax
Enter your net taxable household income for the year (after deductions).
Choose single or couple, and the number of dependent children.
See the gross tax, décote, income tax due, and your average and marginal rates.
This calculator applies France's official 2026 income-tax bareme to your 2025 net taxable income. It uses the quotient familial (parts), its plafonnement, and the decote for modest incomes to work out the tax due.
You enter your net taxable income and household situation, and the tool applies the brackets to give an estimated figure.
The quotient familial divides your income by a number of parts based on your household, then applies the bareme, which lowers the effective rate for families. The plafonnement caps how much benefit those extra parts can provide.
For modest incomes, the decote reduces the tax that would otherwise be due. The calculator factors it in automatically so the estimate reflects lower-income situations.
The result is an estimate to help you understand your bracket and roughly how much tax is due. Use it to get a feel for where your income falls, not as a final tax bill.
It does not replace the official simulator or account for every credit, so it is not tax advice. Official figures may differ from this estimate.
Frequently asked questions
Your net taxable income (revenu net imposable): household income after the standard deductions and allowances. This tool applies the barème to that figure; it does not work out the deductions for you.
France divides taxable income by a number of parts (1 for a single person, 2 for a couple, plus 0.5 per child for the first two and 1 from the third), applies the barème, then multiplies back. It lowers tax for larger households, within a per-half-part cap (plafonnement).
A reduction that lowers or cancels the tax for low gross-tax amounts. It phases out as income rises, so it only affects modest incomes.
It is a close estimate of the barème calculation. It does not include every crédit or réduction d'impôt, so your final notice can differ. It is not tax advice.
This tool is for general information only and is not financial, tax, or legal advice. Results are estimates that depend on your situation and current rules, so check the official source or a qualified professional before you act.
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