The Dutch wealth tax in Box 3 (English: the Netherlands' system for taxing savings and investment returns) remains a legal and political minefield in 2026. Despite repeated rulings by the Supreme Court that the old forfaitaire stelsel (English: deemed-return system) was unlawful, no definitive solution has yet been found. The Eerste Kamer (English: Dutch Senate) is deliberating over a new legislative proposal that aims to tax vermogensaanwas (English: capital accretion as it accrues), but economists and legal experts warn that this system too is vulnerable to new court challenges. Meanwhile, advisory opinions from the Supreme Court indicate that taxpayers who filed objections too late have no right to compensation, even if the levy was unlawful. The debate touches the core of what is fair: may the government tax returns that exist only on paper? And how can wealth inequality be prevented from widening further without disproportionately burdening the middle class? Libaros sets out the numbers and legal developments without judgment, but with all the facts needed to draw your own conclusions.
The Netherlands Box 3 taxes wealth above the exemption threshold (57,000 EUR per person in 2026, 114,000 EUR for fiscal partners) at a rate that increases as wealth grows. According to calculations by economist Bas Jacobs, the effective rate can reach 54% for fortunes above 1,000,000 EUR, depending on actual returns. That figure is controversial: critics argue the rate only reaches that level at low returns, while proponents emphasise that these are paper gains that are not always realised. Source: [BNR.nl, 19 May 2026](https://www.bnr.nl). In practice, this means that someone with 500,000 EUR in a savings account earning 2% interest generates 10,000 EUR in annual returns but pays approximately 4,500 EUR in tax, an effective rate of 45%. For investors with higher returns (for example 7% on equities), the burden is lower, but the legislation makes no distinction between asset classes. This leads to situations in which savers are hit harder than investors, something the Supreme Court labelled as unjust in earlier rulings. A crucial point: those who did not file an objection against their assessment in the past have no right to compensation according to a recent advisory opinion of the Supreme Court, even if the levy subsequently proved unlawful. This affects an estimated tens of thousands of taxpayers who assumed the government would automatically correct the situation. Source: [Accountancy Vanmorgen, 8 May 2026](https://www.accountancyvanmorgen.nl). For those considering relocation or restructuring their wealth: legal uncertainty will persist for the foreseeable future, and new legislation may again be challenged in court. [Compare your situation with the Netherlands →](/calculator?destination=NL)
Perspective: wealth taxation in
a European context Box 3 does not stand alone. Many European countries have abolished wealth taxes (Germany, Sweden, Austria) or levy only inheritance tax. Portugal offers, via the IFICI (English: fiscal incentive for scientific research and innovation, launched 2026) regime, ten years of exemption from wealth return taxation for new fiscal residents, provided they invest at least 500,000 EUR in real estate or businesses. Spain has a wealth tax, the Impuesto sobre el Patrimonio (English: tax on net wealth), which varies by region, with rates up to 3.5% in some autonomous communities, but Madrid offers a full exemption. For Dutch HNWI (English: high-net-worth individuals) seeking to reduce Box 3 pressure, three scenarios are realistic: (1) emigration to a country without a wealth tax, (2) restructuring via a foreign holding company (with attention to the 10-jaars-navorderingstermijn (English: ten-year post-emigration reassessment period) upon emigration), or (3) waiting until the legislation is finalised before taking action. Each scenario has fiscal, legal, and lifestyle implications that extend well beyond the tax rate alone. The Libaros Freedom Score weighs five dimensions: tax burden, passport mobility, residency options, property rights, and lifestyle. Box 3 primarily affects the first dimension, but a relocation decision depends on all five. Those who focus exclusively on tax savings may end up in a jurisdiction with weaker legal protections or limited access to healthcare. The numbers are clear; the choice is yours.