Assiette Sociale 2026

Calculate your French social charges (cotisations URSSAF) in seconds.

Assiette Sociale 2026 is the essential tool for self-employed professionals navigating France's unified social base reform: compute the 26% deduction, estimate your annual URSSAF, provision your monthly cash flow, and anticipate year-end regularization.

INSTANT URSSAF CALCULATION • Social base after 26% deduction (BIC, BNC, micro-entrepreneur) • Contributions by post: health, pension, CSG/CRDS, family allowances • Quarterly and monthly amounts • CIPAV and SSI compatible

MONTHLY RESERVE (Premium) • Exact amount to set aside each month (URSSAF + income tax) • Cash-flow indicator: green / orange / red

REGULARIZATION FORECAST (Premium) • 12-month projection from your actual YTD revenue • Estimated balance or refund based on advances already paid

TOTAL TAX BURDEN • URSSAF + income tax combined • Global effective rate and net disposable income

REGIME TRANSITION (Premium) • Handles the 2025-2027 transition period • Transitional balance calculation with warnings

Official data: urssaf.fr, legifrance.gouv.fr, impots.gouv.fr — always current for 2026.