LeBron James is leaving the Lakers for Philadelphia this summer, and the timing has thrust the NBA’s first active billionaire into the middle of one of the most closely watched tax fights in the country: California’s Proposition 40, a one-time 5% wealth tax on the state’s roughly 200 billionaires headed for the November 2026 ballot.
A closer look at James’s situation illustrates just how complicated—and possibly futile—fleeing California has become for the ultrawealthy this year.
A tax that doesn’t care where you live now
Proposition 40’s mechanics are unforgiving. The measure uses a hard, all-or-nothing residency snapshot: Anyone who lived in California on Jan. 1, 2026, owes the tax, full stop, with no proration for leaving midyear. Net worth is then valued as of Dec. 31, 2026—meaning even James’s move to Philadelphia this summer wouldn’t retroactively undo his California residency status on the trigger date.
That provision has already drawn a constitutional challenge. Rep. Kevin Kiley has introduced federal legislation attacking the measure, arguing it’s fundamentally unfair to tax “someone who no longer lives” in the state. Tax attorneys have raised similar Dormant Commerce Clause concerns, predicting the law will face legal battles well past November regardless of the vote’s outcome.
For James, that means the storyline isn’t as simple as “billionaire dodges tax by leaving.” If Proposition 40 passes, his 2026 California residency may leave him owing the tax whether he’s dunking in Philadelphia or not.
Two strategies, one exodus narrative
James’s move nonetheless slots him into a pattern that has defined California’s billionaire class for the better part of a year. At least six of the state’s 214 billionaires relocated ahead of the Jan. 1 cutoff, according to widely cited reporting, including Google cofounders Larry Page and Sergey Brin, investor Peter Thiel, and Amazon founder Jeff Bezos.
Real estate brokers in Miami describe what one outlet called a “residency war,” with attorneys reporting a surge in stealth land deals as wealthy Californians race to establish out-of-state domicile before deadlines that matter for tax purposes.
But not every billionaire is choosing flight. A second group is staying and fighting instead. According to a Capital & Main investigation published this week, California’s top 15 billionaires have poured more than $336 million into 2026 federal and state elections, with just four individuals—Sergey Brin, Marc Andreessen, Ben Horowitz, and Chris Larsen—accounting for $331 million of that total. That spending represents, in the words of the report, an “exponentially different level” of billionaire political engagement than the state has previously seen.
The dynamic sets up two parallel billionaire strategies for confronting the same threat: Relocate before the trigger date, or stay and spend to kill the measure at the ballot box.
The “billionaire flight” framing itself is contested. SEIU-UHW, the union behind the initiative, has pushed back hard on exodus narratives, said that only “a very small percentage” of California’s 200-plus billionaires have actually left, dismissing warnings of a mass departure as “Chicken Little talking points.”
Aggregate economic data complicates the flight narrative further. Despite the high-profile departures, California pulled in roughly $335 billion in venture capital this year—about 10 times more than any other state, with nearly 90% of that flowing into AI companies. That figure undercuts the simplest version of the story, in which departing billionaires are draining capital from the state alongside their personal wealth.
Where James fits
James has publicly downplayed the billionaire framing altogether. In a resurfaced clip, he pushed back on reports of his net worth, joking that “Google search is a lie” about his finances. Reporting from NBA insider Shams Charania has similarly indicated that tax considerations are not the primary driver behind James’s free-agency decision.
Still, the optics are difficult to ignore. As Forbes noted in its recent tax breakdown, James “may have already navigated this issue” simply by virtue of leaving California this year—even if the law’s residency snapshot means the move may not save him a dime. Whether that turns out to be coincidence or calculation, James now finds himself a headline case study in a fight that has divided California’s wealthiest residents into fighters and flee-ers, with the state’s fiscal future—and a slice of his own fortune—hanging on a November vote.
For this story, Fortune journalists used generative AI as a research tool. An editor verified the accuracy of the information before publishing.