California’s Billionaire Tax: A Dangerous Precedent

California voters may face the 2026 Billionaire Tax Act on their November ballot. The proposal would impose a one-time 5% tax on the net worth of anyone with assets exceeding $1 billion who was a California resident as of January 1, 2026. With roughly 200 to 250 billionaires in California holding a combined wealth around $2 trillion, proponents estimate this measure could raise $100 billion to offset federal cuts to healthcare, education, and food assistance programs.

The tax would be due in 2027, though taxpayers could spread payments over five years with an additional 7.5% annual charge on the unpaid balance. Real estate, pensions, and retirement accounts would be excluded from the calculation. About 90% of the revenue would go to healthcare services, with the remaining 10% split between education and food assistance.

The retroactive application date has already sparked an exodus. Tech billionaires, including Peter Thiel, Larry Page and David Sachs are reportedly establishing residence elsewhere. Oracle founder Larry Ellison sold his San Francisco home in what may be the city’s largest real estate transaction of 2025. Even Governor Newsom opposes the measure, warning it could trigger massive capital flight from the state.

A Fundamental Violation of Property Rights

This proposal represents something we haven’t seen before in American tax policy. For over two centuries, there’s been a clear line between income (what you earn) and wealth (what you own). That distinction matters. The government taxes economic activity and transactions, but it can’t (outside of the estate tax) just show up and confiscate a percentage of assets you already own based on their current market value.

A wealth tax is fundamentally different from an income tax. When you earn money through work or investment returns, you’ve engaged in an economic transaction. But when the government demands 5% of your net worth simply because you own assets, that’s not taxation. It’s seizure. The fact that the proponents of the measure call this a one-time measure doesn’t change what it really is.

The retroactive application date makes this worse. By targeting anyone who was a California resident on January 1, 2026 (before the measure was even on the ballot), the state would be trapping wealth within its borders.

The Valuation Nightmare

The tax is calculated based on the net worth on January 1, 2026, but it’s not due until 2027. For most California billionaires, the bulk of their wealth is tied up in stock holdings, particularly in the tech companies they founded or invested in early. Stock prices move. Sometimes violently.

Let’s say you’re the founder of a California tech company. On January 1, 2026, your stock is worth $2 billion. You owe $100 million in wealth tax. But by the time the tax is due in 2027, the market has turned. Your company stock is now worth $800 million. You still owe $100 million, but your entire net worth has dropped below the $1 billion threshold that supposedly justified the tax in the first place.

This isn’t theoretical. We saw exactly this scenario play out during the dot-com crash and again in 2008. Tech stock valuations can drop 60%, 70%, even 80% in a market correction. The wealth tax doesn’t account for this. You’re locked into paying tax on wealth that may have evaporated.

It gets worse if you’re holding illiquid assets. Private company stock, real estate partnerships, art collections. How do you value a minority stake in a private company on January 1, 2026? You hire an appraiser, they give you a number, and you base your tax calculation on that. But appraisals are educated guesses, not market prices. If you’re forced to sell assets to pay the tax, you might discover the market values them at 30% less than the appraisal. You’ve now paid tax on phantom wealth.

If assets have to be liquidated to pay this tax, there is an additional tax bite – the capital gain tax on the assets sold. This means the billionaire taxpayers will have to sell more than what the billionaire tax will be, to have enough liquidity to pay this tax after paying income taxes on the sale of the assets.

The proposal allows taxpayers to spread payments over five years, but that doesn’t solve the valuation problem. It just extends the timeline for paying tax on wealth that might not exist anymore. And the proposal charges 7.5% annually for the privilege of spreading the payments.

Total Financial Disclosure and Privacy

Beyond the constitutional problems and valuation issues, implementing this tax requires something unprecedented: complete financial disclosure to the government. Income shows up on W-2s and 1099s. But wealth? Wealth exists in dozens of forms. Stock holdings, private equity interests, real estate, art collections, intellectual property rights, cryptocurrency, offshore accounts, trust interests, your favorite pair of shoes, and more.

To calculate a 5% wealth tax, you’d need to disclose every asset you own, everywhere in the world, with current valuations. Private company interests need appraisals. Artwork, jewelry, and collectibles need professional valuations. Foreign accounts and offshore structures need to be revealed. Potentially, even trust interests need to be valued and disclosed, potentially exposing family wealth planning strategies that have been kept confidential for generations.

This isn’t just inconvenient. It’s an invasion of privacy that goes far beyond anything required by existing tax law. Financial privacy exists for legitimate reasons. It protects against frivolous lawsuits and makes you less of a target for every charity, investment scammer, and fortune hunter who wants a piece of your wealth. Once the government has this comprehensive financial dossier, it becomes vulnerable to data breaches, politically motivated leaks, and unauthorized access. Or just further exploitation by various government agencies.

The California tax authorities would effectively maintain a complete financial profile on every wealthy person in the state. What safeguards exist to protect this information? What happens when the next data breach hits? We’ve seen massive government data breaches before. This would be a target-rich database for anyone looking to compromise wealthy individuals or their families.

Scope Creep: From Billionaires to Everyone

If you think this tax will stay narrowly targeted at billionaires, you don’t understand how taxes work. History is clear on this. Temporary measures become permanent. Narrowly targeted taxes expand to the masses. The federal income tax was sold to the American public in 1913 as affecting only the wealthiest 3% with a top rate of 7%. Now it reaches the majority of Americans and top rates have exceeded 90% at various points.

California’s billionaire tax will follow the same playbook. Proponents promise this is a one-time, narrowly targeted measure affecting only 200 people. But once the precedent is established and the administrative machinery is in place, expansion is inevitable. First its in California and then it is nationwide. Perhaps its even mimicked at the federal level. It starts with billionaires. Then it’s a 2% annual tax on those with $500 million or more. After all, they can afford it. Then it’s 1% on anyone with $50 million. Eventually it’s anyone with a paid-off home and a decent retirement account.

Once California establishes it can tax wealth (not just income from that wealth, but the assets themselves), there’s no logical stopping point. If the state can justify taking 5% of a billionaire’s assets to fund healthcare, it can justify taking 2% of anyone’s assets for the same purpose. The principle, once established, has no natural limit except political appetite.

California perpetually faces budget deficits and expanding obligations. When this revenue is spent (and it will be spent quickly), the pressure to find new revenue will be overwhelming. The administrative framework for wealth taxation will already be in place. The constitutional battles will have been fought. Expanding the tax base becomes the path of least resistance.

The Asset Protection Solution

Here’s what wealth tax proponents don’t want to discuss: proper asset protection planning makes wealth taxes irrelevant. The mechanism is straightforward. You transfer legal ownership of assets to structures where you no longer technically own them. If you don’t own the assets, they’re not part of your taxable net worth.

Asset protection trusts transfer legal title to an independent trustee while preserving the beneficial interest within your family. Your family maintains access to distributions. Your family can benefit from the assets. You can influence investment decisions through trust protectors or advisory committees. But on paper, where California’s wealth tax calculations happen, you own nothing. The trust owns everything.

Domestic asset protection trusts in states like Nevada, Delaware, or South Dakota provide strong protection while keeping assets onshore. These are irrevocable trusts with independent trustees, designed specifically to place assets beyond the reach of creditors and, as it turns out, wealth taxes. You’re no longer the legal owner of the assets, so they don’t count toward your net worth for tax purposes.

Offshore trusts provide even stronger protection. Properly structured trusts in jurisdictions like Saint Vincent or Nevis place assets beyond the reach of California tax authorities. These aren’t tax evasion schemes. They’re legally recognized structures that courts have upheld for decades. The assets are still properly reported for income tax purposes (you pay tax on any income they generate), but the net worth calculation for a wealth tax comes up empty because you don’t own the assets.

The timing window for this planning has closed for the current California measure. The January 1, 2026 lookback date was specifically chosen to prevent planning. Anyone who was a California resident on that date gets hit with the tax, regardless of where they live when it’s assessed or when they moved their assets.

But for forward-looking planning (whether for future wealth taxes in California or other jurisdictions), the lesson is clear. Don’t own your assets personally. Transfer them to properly structured trusts now, before there’s a proposal on the ballot. This isn’t about hiding wealth or evading legitimate tax obligations. It’s about using legal tools that exist specifically to protect assets from overreaching government action, creditor claims, and lawsuits.

The same trust structures that protect you from a frivolous $10 million lawsuit also protect you from California’s attempt to confiscate 5% of your net worth. The mechanism is identical. If you don’t own it, it can’t be taken from you.

Conclusion

California’s billionaire tax represents a dangerous shift in American tax policy. It violates fundamental property rights. It requires unprecedented financial disclosure. It creates valuation problems that could force people to pay tax on wealth they no longer have. And it establishes a precedent that will inevitably expand to affect millions of Californians.

The solution isn’t to debate the merits of wealth redistribution. The solution is to recognize that properly structured asset protection trusts make these debates irrelevant to your personal financial security. When you don’t own your assets, the government can’t tax them, creditors can’t reach them, and plaintiffs can’t seize them.

If California’s wealth tax passes, it won’t be the last. Other states will follow. The federal government may eventually adopt similar measures. The time to establish asset protection isn’t after the wealth tax passes. It’s before anyone knows it’s coming. Because once your name appears on a list of people with $1 billion in personal assets, it’s too late to plan around it.