SpaceX relocated its headquarters to Texas, but its upcoming IPO is poised to deliver an unexpected windfall to California. The Golden State stands to collect hundreds of millions in tax revenue because thousands of employees who still live and work there face a 'millionaires' tax.
SpaceX, founded by Elon Musk, moved its official headquarters from Hawthorne, California, to Boca Chica, Texas, in 2021, citing regulatory friction and a business-friendly climate. However, the bulk of its ~13,000-person workforce remains in California, many holding equity that will become liquid in the highly anticipated IPO. California's progressive tax code includes a top marginal rate of 13.3% on income over $1 million, applied to stock option gains when shares are sold. With SpaceX valued at roughly $200 billion in private markets, employees' vested holdings are worth billions.
Tax experts estimate that the state could reap between $300 million and $600 million from employee stock sales in the first year alone, depending on the offering price and how many workers cash out. This would be a major boost for a state facing a projected $45 billion budget deficit. The 'millionaires' tax'—Proposition 30, enacted in 2012 and extended through 2030—earmarks most of its revenue for education and transportation, making the IPO windfall politically significant.
Critics argue the tax encourages wealthy individuals and companies to leave, but the SpaceX example shows that even a symbolic relocation doesn't sever tax ties. The California Franchise Tax Board has already developed methods to tax equity gains from remote workers, ensuring that residency and physical presence trigger liability. This case sets a precedent for other tech IPOs from companies that have moved headquarters but kept talent in California.
The IPO timing remains uncertain but is expected within 12–24 months. If successful, it could validate California's aggressive tax posture and inspire other states to copy the millionaire surcharge. Meanwhile, SpaceX's move to Texas did not erase its California tax footprint—proving that geography is less important than where wealth is created.
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SpaceX Left California. Its IPO Payday Did Not.
The IPO should boost tax revenue in the Golden State because thousands of newly wealthy employees who live and work there face a “millionaires” tax.
Alan Ohnsman, Forbes Staff
Forbes
2 min read
7/10
California
Key Takeaways
- SpaceX has an estimated 13,000 employees, with over 8,000 still based in California despite the HQ move to Texas.
- California's top marginal income tax rate of 13.3% applies to stock option gains over $1 million, targeting IPO wealth.
- Prop 30 (millionaires tax) directs revenue to education and transportation; it was renewed by voters in 2022 through 2030.
- Analysts project California could collect $300–600 million in the first year from SpaceX employee stock sales post-IPO.
- SpaceX's private valuation exceeds $200 billion, making employee equity significant enough to impact state budget deficits.
Frequently Asked Questions
California's millionaires tax (Prop 30) imposes an additional 1% surcharge on income over $1 million, bringing the top marginal rate to 13.3%. It was passed in 2012 and extended through 2030, with revenue dedicated to education and transportation.
Most SpaceX employees remain in California, and they hold stock options that become taxable income when sold after the IPO. California taxes residents on worldwide income and nonresidents on California-source income, so any employee living in California pays the state's income tax on their gains.
Estimates range from $300 million to $600 million in the first year, based on SpaceX's $200 billion valuation and the number of employees with vested equity. Actual figures depend on the IPO share price and how many employees sell their shares.
No. SpaceX moved its headquarters to Texas in 2021, but it still maintains manufacturing, engineering, and office operations in California. The majority of its workforce and key facilities remain in the state.
California has a progressive income tax with a top marginal rate of 13.3% for income over $1 million, which includes the Proposition 30 millionaire surcharge. This rate applies to both earned income and realized stock gains.
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