How Salarié Tax + CSG/CRDS Actually Hit Your French Paycheck

No, and this is the single most common point of confusion on a French payslip. CSG (contribution sociale généralisée) and CRDS (contribution au remboursement de la dette sociale) are payroll deductions withheld directly on every payslip, 9.70% combined in 2026 (6.80% CSG déductible, 2.40% CSG non déductible, 0.50% CRDS), calculated on 98.25% of your gross salary. Income tax (impôt sur le revenu) is a completely separate system: it's calculated once a year on your net imposable via the five-band barème progressif, then collected monthly through prélèvement à la source (PAS) at a rate the DGFiP works out for you. On a €60,000 salary, CSG/CRDS takes €5,718.15 while income tax takes €8,221.67, two different numbers from two different calculations that happen to both come out of the same payslip.

It's a statutory abattement forfaitaire of 1.75%, applied specifically to the CSG/CRDS assiette (base) to represent notional frais professionnels, and it has nothing to do with the separate 10% abattement forfaitaire that applies later to your income tax calculation. So on a €60,000 gross salary, CSG/CRDS is calculated on €58,950 (98.25% of €60,000), not the full €60,000. This 98.25% assiette only applies up to 4 times the annual PASS (€192,240 for 2026); above that ceiling, the assiette reverts to 100% of gross, though this rarely matters for typical tech salaries.

It reduces the income figure that actually gets run through the barème progressif. Your net imposable (roughly gross minus the 6.80% CSG déductible) gets a 10% abattement forfaitaire subtracted, floored at €509 and capped at €14,555 per person, before the barème applies. On €60,000 gross, that's a €5,599.14 abattement, bringing the taxable base down to €50,392.26 rather than the full net imposable. This abattement represents notional frais professionnels for salariés and applies automatically; you don't need to claim it or provide receipts unless you opt for frais réels instead, which almost never beats the forfait for a standard salary.

The décote (article 197-I-4 CGI) is a statutory smoothing mechanism that reduces your barème-computed tax (impôt brut) toward zero gradually, rather than letting a small crossing of the first taxable band suddenly cost you the full bracket amount. For a single filer, it applies only when impôt brut is below €1,982, calculated as €897 minus 45.25% of impôt brut. In practice, that threshold is low enough that most salaried tech professionals clear it well before their headline salary; at €40,000 gross, for example, impôt brut is already €3,182.44, comfortably above the €1,982 ceiling, so the décote doesn't reduce it at all. It matters mainly near the bottom of the income scale, for people just becoming taxable.

Just collection, not an extra charge. Prélèvement à la source (PAS) is the mechanism that spreads your annual income tax liability across 12 monthly payslip deductions, at a personalized rate the DGFiP calculates from your most recent tax return (or a default rate if you're new to French payroll). It doesn't change how much tax you owe for the year, the barème progressif calculation does that, it just changes when you pay it: monthly as you earn, rather than in one lump sum the following year. CSG/CRDS, by contrast, are always withheld directly on gross pay every payslip, with no PAS-style rate adjustment involved.

This article's worked table deliberately isolates CSG/CRDS and income tax only, the two systems most people mean when they ask 'how much tax do I pay in France,' so you can see each one clearly without other deductions mixed in. The France Salary Calculator itself goes further and also includes assurance vieillesse (base retirement) and retraite complémentaire AGIRC-ARRCO, both mandatory on every payslip, so its net figure is closer to your real take-home than the isolated numbers shown here. What neither includes is a mandatory mutuelle d'entreprise contribution, whose premium varies by employer rather than following a single national rate.

No. Auto-entrepreneur (and other indépendant statuses) uses a fundamentally different tax base entirely: micro-BIC or micro-BNC turnover with a flat abattement, plus cotisations sociales paid to URSSAF as a percentage of turnover rather than CSG/CRDS on a payslip. The barème progressif still applies to the taxable profit after the micro-BNC abattement, but the mechanics around it, no CSG/CRDS, a different social-contribution structure entirely, are different enough that they need their own comparison. See our dedicated auto-entrepreneur vs salarié breakdown for that math.