Calculation Accuracy & Error Margins
PayDecision targets an accuracy tolerance of less than 0.50 EUR for standard employment cases. Understanding the sources of potential variance ensures realistic expectations.
Precision Guarantee
For standard employment contracts (cadre or non-cadre, single status, no special benefits), the deterministic engine computes net monthly salary with a precision of less than 0.50 EUR compared to official Urssaf calculators and DGFIP published tables.
Exclusions & Limitations
The following elements are excluded from standard simulations and may introduce variance:
- Exceptional or variable bonuses (prime de panier, intéressement, participation) that depend on company profitability.
- Sector-specific collective agreements (conventions collectives) with non-harmonized rates.
- Derogatory employment contracts (france travail, apprentissage, alternance).
- Regional tax credits or municipal rebates.
- Impatriation regime (article 197 A of the CGI) which requires specific eligibility.
- Multi-city or cross-border commuting arrangements.