Data reports
Original analysis built from the primary official statistics that sit behind our calculators. Every report states how each figure was produced, which figures are derived rather than published, and where the limits are.
How Many Days You Can Spend in the UK Before You're Tax Resident
The Statutory Residence Test sets six day limits, not one — from 182 days at zero ties down to 15. The full allowance matrix by tie count, and why a recent leaver loses up to 62 days against an arriver in identical circumstances.
Published 19 August 2026 · Tables, methodology, limits, citable sourcesWhat Spain's Beckham Law Actually Saves, by Income Band
The flat 24% regime measured against the standard IRPEF scale, band by band. Below about €30,600 of employment income it is a net loss; above €600,000 the annual saving is fixed at €122,902 and stops growing.
Published 19 August 2026 · Tables, methodology, limits, citable sourcesH-1B Selection Odds by Wage Level, FY2027
Registrations fell 38.5% to 211,600 while the cap stayed at 85,000. What the new wage-weighted 4/3/2/1 selection means for Level I through Level IV — and why the 40.2% headline rate does not apply evenly.
Published 18 August 2026 · Tables, methodology, limits, citable sources