The Dutch government refuses to cancel its tax on unrealized crypto gains. Here is what investors need to know about the Box 3 reform.
The Dutch government has refused to back down on a controversial tax reform targeting unrealized investment gains.
Despite months of backlash from investors, the proposal continues to move forward in parliament. According to Crypto Rover, Dutch officials have made it clear the bill will not be withdrawn.
The reform, known as the “Actual Return in Box 3 Act,” would affect stocks, bonds, and crypto investors across the Netherlands. For crypto holders in particular, the stakes are high.
What the Box 3 Tax Reform Means for Crypto Investors
The proposed law would tax investors at roughly 36% on yearly investment returns. But the definition of “return” is what has caused the most concern.
Under the current draft, the government would count annual price increases as taxable income. That includes gains on assets that have not been sold yet.
For crypto investors, this creates a real problem.
Digital assets are known for sharp price swings. A portfolio can surge in value one year and crash the next. Under this reform, investors could owe large tax bills based on gains that no longer exist by the time they pay.
Financial advisors have raised red flags about cash-flow risks.
Investors may not have liquid funds to cover taxes on paper gains. The proposal also covers dividends, interest, and rental income. But it is the unrealized gains clause drawing the most criticism.
Related reading – No Sale, Still Taxed: Netherlands Targets Paper Crypto Profits
Why the Dutch Government Introduced the Unrealized Gains Tax
This reform did not appear out of thin air.
The Dutch Supreme Court ruled that the old Box 3 system violated property rights. That system taxed investment wealth based on assumed returns. In many cases, investors paid taxes on gains they never actually earned.
The government then set out to build a fairer system. The new approach aims to tax actual returns instead of estimated ones. That goal sounds reasonable on paper.
However, including unrealized gains has undermined the reform in the eyes of many investors.
The Dutch House of Representatives has already passed the bill. It is now under review in the Senate.
Secretary of State for Finance Eelco Eerenberg recently told lawmakers that the review process will continue. The government plans to adjust parts of the bill in stages rather than scrap it altogether.
🇳🇱 DUTCH OFFICIALS HAVE OFFICIALLY REFUSED TO CANCEL THEIR NEW TAX ON "UNREALIZED GAINS."
Despite weeks of backlash from investors and international media, the Dutch government has not withdrawn the proposed Box 3 tax reform.
Instead, officials are allowing the process to… pic.twitter.com/2MMWv3vX4s
— Crypto Rover (@cryptorover) March 10, 2026
Timeline and Future of the Netherlands Crypto Tax Law
The Dutch government has shared a rough roadmap for the reform.
Current temporary Box 3 rules stay in place through 2025 to 2027. The new actual return system is set to launch in 2028. After that, officials say they may shift toward taxing only realized gains, but no legislation exists for that step yet.
The first round of changes will focus on technical fixes. That may include adjustments to how investment losses are handled.
A longer-term shift to a realized gains model could take years to design and pass. No timeline or draft for that phase exists yet.
Crypto Rover noted that the Netherlands could remain one of the higher-tax environments for portfolio investors in Europe.
Even if the system changes, the overall tax burden may not drop significantly. For now, investors in the Netherlands face a period of uncertainty. The reform is moving forward, and only the details remain up for debate.
