Google Co-Founder Sergey Brin Reportedly Spends Over $100 Million Against California Billionaires Tax
Google co-founder Sergey Brin has reportedly spent over $100 million to oppose Proposition 40, a proposed one-time wealth tax targeting California's billionaires. This significant financial contribution aims to defeat the measure, which would impose a 5% tax on assets over…

Santa Barbara Santa Maria San Luis Obispo, CA, September 29, 2026 —
Google co-founder Sergey Brin has reportedly allocated more than $100 million in expenditures aimed at opposing Proposition 40, a ballot measure proposing a one-time wealth tax for California billionaires. The substantial financial outlay is directed towards efforts to defeat the proposition.
Proposition 40, if passed, would enact a 5% tax on assets exceeding $1 billion. Reports indicate that Brin views this significant investment as a necessary measure to mitigate a potentially large personal financial impact and to influence the direction of state policy regarding wealth taxation.
The specific details regarding the timeline of these expenditures and the precise mechanisms through which the funds are being deployed to oppose Proposition 40 were not provided in the summary. The full extent of Brin’s involvement and the specific organizations receiving these funds are also not detailed.
The campaign against Proposition 40 signifies a considerable financial commitment from a prominent technology figure in response to proposed taxation measures targeting the state’s wealthiest individuals. The summary does not include information about Brin’s direct statements or public comments on the matter, nor does it detail the arguments being presented by opponents of the proposition. Information regarding potential counter-campaigns or legislative responses is also not available in the provided summary.
Story summarized from the original created by CNN Newsource on keyt.com, see more information here.
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