Both Belgium and United Kingdom sit in Europe, but their tax structures take different paths. On a 65 000 € gross, the effective tax burden in Belgium is roughly 22.4% higher than in United Kingdom — driven by differences in ONSS vs National, bracket structure, and personal allowance.
Same nominal gross applied to both tax systems. Currencies aren't FX-converted — compare structures, not purchasing power.
Belgium has one of the highest effective tax burdens in the world: progressive income-tax brackets reach 50% quickly, and the flat 13.07% employee social-security contribution applies to the entire gross salary. Municipal surtaxes add another 6–9% on income tax. Net take-home is typically 55–60% of gross.
The UK runs a three-band PAYE income tax with a generous £12,570 personal allowance, alongside Class 1 National Insurance contributions of 8% on earnings between the primary threshold and the upper limit, then 2% above. Scotland uses different bands. The personal allowance tapers above £100,000, creating a 60% effective marginal rate in that range.
Pre-calculated breakdowns at common pay levels in Belgium — open either side for the full page.
Last updated: 2026. Estimates only — see the disclaimer above.