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NewsLos Angeles Times – CaliforniaOctober 24, 2026Los Angeles County

Tech billionaires vastly outspend supporters on California wealth tax ballot measure

Photo: Los Angeles Times – California

More than $351 million has been raised in a high-stakes California ballot measure campaign concerning a proposed one-time 5% wealth tax on state billionaires, with 90% of the funds spent by opponents to defeat Proposition 40 alongside related measures Propositions 41 and 42.

Read the full story at Los Angeles Times – California

Why It Matters

Opposing campaigns have raised $316.7 million to defeat the and back countermeasures, while proponents raised $34.3 million primarily to place Proposition 40 on the ballot and rely on public events and digital outreach.

Key Facts

  • More than $351 million has been raised for the campaign regarding the proposed wealth tax ballot measure in California.
  • About 90% of the campaign money is being spent to defeat Proposition 40.
  • Proposition 40 would levy a one-time, 5% tax on many assets of California billionaires who lived in the state as of Jan. 1.
  • Propositions 41 and 42 are intertwined ballot initiatives designed to nullify Proposition 40 through tax law changes if either receives more votes.
  • The tax measure was crafted by Service Employees International Union-United Healthcare Workers West in response to federal healthcare funding reductions.
  • Supporters of the wealth tax raised $34.3 million, nearly all from the healthcare workers union.
  • Opponents of the wealth tax raised $316.7 million.
  • Google co-founder Sergey Brin donated more than $100 million to anti-wealth-tax efforts.
  • Eric Schmidt and L. John Doerr each contributed $40 million to oppose the wealth tax.
  • Meta created a new non-voting type of stock to allow Mark Zuckerberg to pay the proposed tax while retaining voting power and remaining in California for eight years.
  • In 2022, $463 million was spent on two gambling proposals in California, and both failed.

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