STUMP - Death and Taxes

The Return of Wealth Taxes: California and The Netherlands

STUMP - Death and Taxes

Show Notes

Getting back into podcasting by looking at the recent wealth tax proposals in California and the Netherlands. The Box 3 “reforms” have already passed in The Netherlands and to go into effect in 2028, and in California, the wealth tax is likely to be a ballot proposal to be put in front of voters this fall in 2026, but backdated to January 2026. I look at the proposals at a high-level, some initial responses, and what the actual goals of these taxes are.

Episode Notes Netherlands Investment Tax: “Box 3” NL Times, 13 Feb 2026: Dutch parliament greenlights new Box 3 tax, set to take effect in 2028 Despite considerable resistance, a large majority in the lower house of the Dutch parliament approved a new system for taxing the returns on assets, also known as the Box 3 tax. The new system, which taxes returns based on the actual increase in the value of assets, is set to take effect in 2028. The Dutch government had to change the Box 3 tax after multiple courts ruled that the current system is unlawful. The current system taxes assets based on fictive gains - how much the Tax Authority assumes assets have increased in value over the taxable period, based on past returns. The Tax Authority also calculated the tax based on an assumed distribution of assets across savings and other investments, called the “asset mix.” …. The Tweede Kamer greenlighting the Box 3 reform is not the end of the issue. A majority asked the new Cabinet to, once the new system is implemented, change the way in which returns on things like stocks, bonds, and cryptocurrencies are taxed. The new system taxes the unrealized gains on these assets - the profits of investments that have increased in value, but haven’t been cashed out yet. Parliamentarians don’t like that this will result in people paying tax on money they don’t have yet. A majority, therefore, asked the government to come up with a way in which investors only pay tax on realized returns - money in their pocket once they sell the asset involved. They want the government to present that plan by Budget Day 2028 at the latest. The Box 3 reform is costing the government billions. Not only does it have to refund overpaid capital gains taxes, but affected taxpayers may also be entitled to interest on those repayments. The Ministry of Finance has not yet formally decided whether the interest—known as belastingrente in Dutch—will be paid. NTL Trust International, accessed 17 Feb 2026: Netherlands Box 3 Reform: Structural Shifts and the 36% Tax Liquidation Contagion Balaji Initial Post 15 Feb 2026, X/Twitter: Text: LIQUIDATION CONTAGIONWealth taxes are even worse than you think. Any asset held by Californian billionaires or Dutch citizens is now at risk of experiencing forced liquidation pressure.So: it’s not just that you don’t want to hold assets as a Dutchman. You also don’t want a Dutchman to hold your assets. Because the logic of forced liquidation is contagion.Let’s think it through.(1) First, suppose there is an asset with a total market cap of $10,000, with 10 shares total, of which 1 share each is held by 10 different holders, all in the Netherlands. To simplify the math, assume the Dutch holders bought those shares at par, or close to $0.(2) Now suppose today is the unrealized cap gains tax day, and the share price is $1,000 per share. Each Dutch guy is hit with a 36% tax, and owes $360. The first guy sells his one share, gets $1,000, and pays $360 in tax while retaining $640.(3) But the first guy’s sale reduces the market price to $960 per share. So when the second guy sells, he only retains $600 after paying $360 in tax.(4) Now assume that by the 7th guy, all the selling has pushed the share price to collapse to $200 per share. This is a very reasonable scenario if 60% of the cap table has suddenly been dumped. Indeed it might go much lower.(5) At $200 per share, the 7th guy actually has to go into debt to pay the tax as he owes $360. He sells his one share, pays all $200 of the proceeds in tax.

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