Bonus Tax Rates Europe 2026

Dutch bonus taxation mechanics: bonuses are employment income (loon) subject to loonheffing (wage tax). The employer withholds loonheffing via the loonheffingstabel or the progressive jaaraftrekking (annual method). Top rate for 2026: 49.50% on income above €75.518. The arbeidskorting trap: the arbeidskorting (employment tax credit) phases out from €39.457 to €124.935 — at a phaseout rate of 6.51% per additional euro earned. This means an employee earning €55.000 base salary receiving a €10.000 bonus faces: 36.97% Box 1 rate PLUS 6.51% arbeidskorting phaseout = effective marginal rate of approximately 43.5% on the bonus. An employee earning €90.000 receiving a €20.000 bonus: 49.50% top rate PLUS remaining arbeidskorting phaseout = potentially 50%+ effective marginal rate on portions of the bonus. Efficient structuring: employers can use uitgestelde beloningsregelingen (deferred remuneration plans), pension contributions (within jaarruimte/reserveringsruimte), or tax-favoured products to deliver compensation more efficiently than pure cash bonuses.

CAO 90 (Collectieve Arbeidsovereenkomst nr. 90) mechanics: Belgian federal law allows employers to grant non-recurring results-based bonuses (niet-recurrente resultaatsgebonden voordelen) subject to a special tax regime. 2026 limit: €3,984 gross per employee per year. Tax treatment: employee: approximately 13.07% personal social security contribution + approximately 33% special income tax rate = approximately 41% total charge (versus normal marginal rate of approximately 50%+ for higher earners). Employer: approximately 33% reduced social security contribution (versus standard approximately 35%); net bonus for employee from €3,984 gross: approximately €2,348. Employer total cost: approximately €3,984 × 1.33 = approximately €5,299. Versus regular bonus: same gross at top combined rate (50% income tax + 13.07% social) = approximately €1,868 net. CAO 90 delivers approximately 26% more net to the employee for the same gross amount. Requirement: the bonus must be linked to collective objective criteria (team or company results) that were not achievable with certainty at the time of the CAO; cannot be based on individual targets. Very popular: most large Belgian employers have a CAO 90 plan; HR departments specifically structure results-based pay to maximise this regime.

NHR history and transition: NHR launched 2009 under José Sócrates government; attracted approximately 74,000 registrants by 2023 primarily from EU countries (France, UK, Germany, Sweden); 20% flat rate on Portuguese-source employment income versus standard progressive rate up to 48%; pension income from foreign sources taxed at 10%. Political controversy: French and Swedish governments complained that high-income retirees were using NHR to avoid home-country taxes; diplomatic friction. Reform 2024: Governo Montenegro abolished NHR for new applicants from January 1, 2024; existing NHR holders grandfather to end of their 10-year period. IFICI replacement: available for specific qualifying activities (researchers, highly qualified professionals, startup sector, R&D, technology transfer); still provides reduced rate of approximately 20% but with stricter eligibility criteria; requires working in approved sectors (not open to all professions as NHR was). Impact on Portugal attractiveness: Portugal remains a popular expat destination (Lisbon D8 visa, golden visa property removed but capital investment route remains); IFICI is less broadly applicable than NHR but still provides significant tax advantage for qualifying tech and research professionals.