Data Sources - Official Tax Authorities & Benchmarks
PayDecision draws all calculation parameters from official public sources. Each jurisdiction below references the exact regulatory body, legal reference, and effective date for all barème (tax schedule) values used in our deterministic engine.
France
Urssaf: social security contribution rates. DGFIP: income tax brackets (barème progressif), CSG/CRDS rates, PASS amounts. Insee: median rent benchmarks (Claw) for 150+ metropolitan areas. Effective date: January 1, 2026.
United States
Internal Revenue Service (IRS): federal income tax brackets and standard deduction amounts. State Revenue Departments: state-level income tax rates. Effective date: Tax year 2026.
United Kingdom
HMRC: PAYE tax bands, National Insurance contribution rates, personal allowance thresholds. Effective date: 2026/27 tax year.
Morocco
DGI (Direction Générale des Impôts): income tax barème, CNSS contribution rates. Effective date: 2026.
Switzerland
Swiss Federal Tax Administration (AFT): federal tax tables, cantonal rates. AVS/AI/EO/ALV/AC social security rates. Effective date: 2026.
United Arab Emirates
Federal Tax Authority (FTA): corporate tax 9% above 375,000 AED, personal income tax exemption. Emirate-level municipal fees where applicable. Effective date: 2026.
Canada
Canada Revenue Agency (CRA): federal income tax brackets, CPP and EI contribution rates. Provincial revenue agencies: provincial tax brackets. Effective date: Tax year 2026.
All barème values are recalculated at each platform build. Sources are audited quarterly against official government publications.