How it's calculated
A French payslip starts from the gross salary (salaire brut), deducts the employee's social contributions to reach the net before income tax, then deducts income tax withheld at source. The calculator works through each step for the year and divides by 12.
Social contributions. For 2026 the employee pays old-age insurance of 6.90% up to the social security ceiling (€48,060 a year) and 0.40% on all pay, supplementary pension to AGIRC-ARRCO, and the CSG and CRDS on 98.25% of gross. There is no employee health or unemployment contribution.URSSAFAgirc-Arrco
Income tax. Tax is charged on the household's taxable income using the quotient familial: the income is divided by the number of parts, the progressive scale is applied to one part, and the result is multiplied back, with a cap on the benefit of extra parts and a reduction (décote) for small tax bills.DGFiP
The formula
- Employee contributions = old age (6.90% to the ceiling + 0.40%) + AGIRC-ARRCO (3.15% to the ceiling, 8.64% above) + CEG and CET + CSG (9.20%) and CRDS (0.50%) on 98.25% of gross
- Net social = gross − contributions; taxable net = net social + non-deductible CSG (2.40%) + CRDS
- Taxable income = taxable net − 10% for work expenses (min €509, max €14,555)
- Income tax = parts × scale(taxable income ÷ parts), with the scale 0% to €11,600, 11% to €29,579, 30% to €84,577, 41% to €181,917, 45% above; then the quotient cap and décote
- Net after tax = net social − income tax
Worked example
A single person earning €40,000 gross as a non-cadre pays €8,336 of employee contributions, leaving €2,639 a month before tax. Income tax for the year is €1,967, a withholding rate of 6%, so net pay after tax is €2,475 a month.
| Line | Per month | Per year |
|---|---|---|
| Gross salary (brut) | €3,333 | €40,000 |
| Old-age insurance | -€243 | -€2,920 |
| Supplementary pension (AGIRC-ARRCO, CEG, CET) | -€134 | -€1,604 |
| CSG and CRDS | -€318 | -€3,812 |
| Net before income tax (net social) | €2,639 | €31,664 |
| Income tax withheld (6%) | -€164 | -€1,967 |
| Net pay after tax | €2,475 | €29,697 |
A married couple with two children and the same salary has 3 parts and pays €0 of income tax on it.
Assumptions and limitations
- Income tax scale for 2025 income, the latest enacted (Finance Law 2026). The draft 2027 budget raises the thresholds by about 2.1% for 2026 income; the calculator will switch once that is law.
- Salary is the household's only income; for couples, the other partner's income is not included.
- Not included: employer-paid mutuelle and prévoyance, overtime exemptions, Alsace-Moselle's extra 1.30% health contribution, and tax credits such as childcare or home help.