Work out your French net salary from the gross salary locally - including CSG/CRDS and an estimated income tax, no upload.
No. Everything runs in your browser - your file never leaves your device. How this is verifiable
In France, the CSG (Contribution Sociale Généralisée, 9.2 percent) and the CRDS (Contribution au Remboursement de la Dette Sociale, 0.5 percent) are deducted first from the gross salary (salaire brut) - both on 98.25 percent of the gross salary (a flat allowance for professional expenses). On top come further social contributions (pension, unemployment insurance, the AGIRC-ARRCO supplementary pension), which vary by status: for a non-cadre (regular employee) they typically total around 22 to 23 percent of the gross salary, for a cadre (executive/manager) around 25 percent - the well-known rule of thumb "net pay is roughly 78 percent (non-cadre) or 75 percent (cadre) of gross pay". On the remaining taxable income, the calculator additionally applies the progressive income-tax tariff (barème progressif) to estimate the monthly withholding tax (prélèvement à la source).
The calculation runs entirely locally in your browser, in pure JavaScript - nothing is uploaded and nothing is stored. CSG, CRDS and the remaining social contributions are deducted from the gross salary, giving the net-before-tax salary. On the income adjusted for the deductible portion of CSG, the calculator applies the barème progressif (single person, one quotient familial part) to estimate the income tax. Net-before-tax minus the estimated tax gives the net-after-tax salary - the amount that actually reaches your bank account.
An honest note: the remaining social contributions (pension, unemployment insurance, AGIRC-ARRCO) are assumed at a typical average rate per status, not computed from your specific collective agreement or employer - the exact rate depends on the industry and employer. Income tax is estimated for a single person (1 part) with no other income, allowances or tax credits; the actual withholding (prélèvement à la source) is based on an individual rate communicated by the tax authority. The CSG/CRDS ceiling (4x PASS) is not modelled. Not tax advice.
| Input formats | Form inputs (no file) |
|---|---|
| Processing | Locally in your browser (JavaScript) |
| File upload | None |
Limitations: A model-based estimate: CSG/CRDS computed exactly per the 2026 rates (9.2 percent + 0.5 percent on 98.25 percent of gross), the remaining social contributions as a typical average rate per status (non-cadre/cadre), income tax from the 2026 barème progressif for a single person (1 part), with no other income/allowances/credits. The CSG/CRDS ceiling (4x PASS) is not modelled. France only. Not tax advice.
No. The calculation runs entirely locally in the browser (pure JavaScript); nothing is sent or stored.
Cadre denotes executives/professionals under their own supplementary-pension scheme (higher AGIRC-ARRCO contributions); non-cadre are regular employees. The typical social-contribution rate differs by around 2 to 3 percentage points as a result.
CSG (Contribution Sociale Généralisée) and CRDS (Contribution au Remboursement de la Dette Sociale) are statutory social levies on earned income - together 9.7 percent on 98.25 percent of the gross salary; part of the CSG is deductible from income tax.
No. The prélèvement à la source is based on an individual rate the tax authority computes from your last tax return. This calculator instead estimates the annual tax from the barème for a single person with no further details.
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