# California Billionaires Tax A **one-time 5% wealth tax** on California residents with net worth exceeding $1 billion, headed for the **November 2026 ballot** after backers collected 1.5 million signatures (nearly double the 850,000 required). The measure would raise an estimated **$100 billion over five years**, with 90% designated for healthcare and 10% for K-14 education and food assistance. It targets roughly **200 of California's 214 billionaires**. The initiative has triggered an extraordinary political war between organized labor and the tech billionaire class — with Google co-founder **[[Sergey Brin]]** emerging as the lead opposition figure, spending **$57 million+** to defeat it, fleeing to Nevada, and drawing connections to Trump world through his MAGA-supporting girlfriend. ## Status (October 2026): Proposition 40 > [!info] On the November 3, 2026 ballot as **Proposition 40** > The measure **qualified June 17, 2026** with 980,438 valid signatures. Its official title is *"Imposes One-Time Tax on Certain Taxpayers. Initiative Constitutional Amendment and Statute."* The yes committee is **"Yes on 40 – Billionaire Tax Now"** (SEIU-UHW). The sections below were written during the spring signature drive. **The ~$100B revenue figure in the intro is the backers' claim.** The Legislative Analyst's Office says revenue "probably would add up to tens of billions of dollars spread over several years," with a possible ongoing income-tax loss of under $1B a year, and that the tax would reach "a few hundred people." **Competing measures.** Props 41 and 42 are also on the ballot, and if either gets more votes than Prop 40, Prop 40 fails (CalMatters). The spring counter-initiative strategy therefore became a vote-count contest rather than a legal one. **Money (late September 2026).** Opposition spending is put at **$187M–$205M+**, a total that includes the Prop 41/42 committees (CalMatters; CPA Practice Advisor puts it near $195M). The yes side has about **$31–36M**, including in-kind. [[Sergey Brin]] has put roughly **$102M** into Building a Better California, the main opposition vehicle, which he co-founded with [[Eric Schmidt]] and which strategist Ned Wigglesworth runs (Fortune, SF Standard). CalMatters' Oct 1 figure for Brin is "$138M+." [[Chris Larsen]] added **$10M** to Building a Better California in August. Reports of [[John Doerr]]'s total conflict ($7.5M per Fortune, $10M per Inequality.org). [[Peter Thiel]]'s gift was **$3M** to the California Business Roundtable effort, dated Dec 29, 2025 (Fortune, Finviz). [[Ron Conway]] has a separate committee, "Stop the Squeeze," which had raised about $400K and nothing since April *(SF Standard; single-source)*. **Who's on which side.** - **For:** the California Democratic Party, which endorsed on **Aug 2, 2026** with 61.7% (145–90) on a second vote, and six Nobel economists (Acemoglu, Banerjee, Diamond, Duflo, Krugman, Stiglitz). - **Against:** Governor [[Gavin Newsom]]. San Francisco Mayor [[Daniel Lurie]], **Jan 26, 2026**: "We would drive revenue out of our state when 49 other states don't have [a wealth tax]" *(SF Business Times via CalTax)*. The **San Francisco Democratic Party**, which broke with the state party on **Aug 26, 2026** (17–4 per Mission Local, 17–5 per SF Standard), with chair Nancy Tung saying: "Proposition 40 is the wrong approach." The California Medical Association and Planned Parenthood also sent an opposition memo on Sept 18 *(CalMatters; single-source)*. **Polling.** | Poll | Field dates | Yes | No | |------|-------------|-----|----| | Berkeley IGS | Aug 3–9 | 48 | 41 | | PPIC (likely voters) | Sept 4–10 | 52 | 46 | | Citrin Center / POLITICO | released Sept 22 | 45 | 43 | | Berkeley IGS (4,512 likely voters) | Sept 15–20 | 45 | 42 | Support has slipped from a clear lead to roughly even since August, while opposition spending has run at more than 5 to 1. ## The Proposal | Element | Detail | |---------|--------| | **Tax rate** | One-time 5% on net worth above $1 billion | | **Due date** | 2027 (payable over 5 years at higher cost) | | **Revenue** | ~$100 billion over 5 years | | **Allocation** | 90% healthcare programs, 10% K-14 education + food assistance | | **Targets** | ~200 of California's 214 billionaires | | **Exclusions** | Real estate, pensions, retirement accounts | | **Sponsor** | SEIU-United Healthcare Workers West | | **Signatures** | 1.5M+ collected (850K required); validation in progress | | **Election** | November 2026 ballot | ## The Opposition: Sergey Brin's $57M War Brin faces a potential **$13 billion tax bill** under the proposal. His response has been the most aggressive personal political intervention by a tech billionaire since [[Elon Musk]]'s Twitter acquisition: ### The Treehouse Confrontation At a **Christmas party** hosted by crypto titan [[Chris Larsen]] in a redwood treehouse north of San Francisco, Brin and his girlfriend **Gerelyn Gilbert-Soto ("GG Soto")** confronted Governor Newsom directly about the tax. Brin told Newsom they were leaving the state. Newsom later complained he caught a cold from them and was still discussing the encounter months later. ### The Financial Campaign - **$57 million+** contributed to "Building a Better California" (his anti-tax nonprofit) in four months, plus an additional $9M disclosed late in April - **Billionaire coalition mobilized:** Larry Page, [[Eric Schmidt]], Brian Armstrong (Coinbase), [[Vinod Khosla]], [[John Doerr]] recruited to the opposition - **Combined opposition spending** exceeds $50M+ - **Soviet comparison:** Brin made rare public statements comparing the tax to Soviet socialism: "I fled socialism with my family in 1979 and know the devastating, oppressive society it created in the Soviet Union. I don't want California to end up in the same place." ### The Flight Brin purchased a **$42 million mansion** on the Nevada side of Lake Tahoe — establishing residency outside California while maintaining presence by spending every other week at Google HQ. Larry Page also left California to avoid the potential tax. This pattern of geographic flight from taxation connects to [[Peter Thiel]]'s Argentina move and the broader tech billionaire exit trend. ## The GG Soto Connection **Gerelyn Gilbert-Soto ("GG Soto")**, 32, is Brin's girlfriend and a wellness influencer/holistic health coach based in San Francisco. She is also a vocal MAGA supporter: - Owns a bedazzled "MAGA" clutch - **Posted a photo of Brin wearing a red MAGA hat** - Attended Trump's **September 2025 White House dinner**, where Trump praised her as Brin's "really wonderful MAGA girlfriend" in front of Melania - Attended Trump's swearing-in ceremony - Frequently calls Trump her "bestie" - Accompanied Brin to the Newsom treehouse confrontation Soto represents the personal vector connecting Google's co-founder — historically associated with tech centrism — into Trump's MAGA orbit, particularly around tax and regulatory politics. This is the **wellness-to-MAGA pipeline** documented elsewhere in the KB, operating at the billionaire level. ## Political Dynamics The tax has created unusual political alignments: **For the tax:** - SEIU-United Healthcare Workers West (main sponsor) - Teamsters California - AFSCME California - Progressive labor unions **Against the tax:** - Governor [[Gavin Newsom]] (called it "really damaging to the state") - Tech billionaire class (Brin, Page, Schmidt, Armstrong, Khosla, Doerr) - Combined $50M+ opposition war chest **Notably neutral/divided:** - SEIU California (hasn't taken a position, despite national SEIU support) - Working Families Party (neutral) - Progressive Democrats (split) The division *within* progressive politics is analytically significant: this isn't a clean left-vs-right fight. Newsom — a Democrat — is aligned with the billionaire opposition, while labor unions are divided. The November 2026 ballot will be a direct test of whether organized labor can defeat concentrated billionaire capital in a direct democratic vote. ## The NBER Revenue Study (May 2026) On May 25, 2026, economists **Jasper Boll, Emmanuel Saez, and Gabriel Zucman** released an NBER working paper (WP 35218), *California Billionaires: Wealth, Taxes, and Wealth Tax Revenue Estimates*, that directly answers the opposition's central claim — that the tax will trigger an exodus and ultimately starve the state. Saez and Zucman are the same Berkeley economists whose work underpinned the Warren and Sanders federal wealth-tax proposals, so the paper functions as the pro-tax camp's intellectual artillery. ### The 25-Year Breakeven The paper's headline finding reframes the exodus threat as marginal. California billionaires hold over **$2 trillion** in wealth — roughly **50% of California's GDP** — yet paid only about **0.2% of that wealth** in state income tax (Fortune reported $4.1 billion in the most recent year; the paper's 2023–2025 average is ~$3.2 billion, or about 2.4% of all California income-tax revenue). Because the annual income-tax take from billionaires is so small relative to the one-time levy, the math is lopsided: | Scenario | Time to lose as much as the $100B tax would raise | |----------|---------------------------------------------------| | **Every billionaire leaves overnight** | ~25 years of forgone income tax | | **One-quarter of billionaires leave** | ~100 years | In other words, even total flight would take a quarter-century to cost the state what the wealth tax collects in five years — and the realistic departure rate makes the breakeven horizon roughly a century. ### The Untaxed-Wealth Core The study documents *why* the income tax has failed to reach this class: more than **80% of California billionaire wealth sits in unrealized capital gains** and is therefore never taxed. This is the [[Buy, Borrow, Die]] strategy operating at scale — billionaires take symbolic or zero salaries and borrow against appreciating stock rather than selling it. The structural numbers: - Billionaire real wealth grew **~30-fold from 1982 to 2025** (and 144% from 2023 to 2025 on the AI boom), while average California family real income roughly **doubled**. - Since 2019, billionaires paid **~1.3%** of total wealth in combined state, federal, and corporate taxes; all California residents paid **4.4%** of household income. - The authors: "California GDP per family looks almost like a flat line relative to the extraordinary growth of the billionaire class... this vividly illustrates the failure of the California individual income tax to tax the very wealthiest people in the state." A 2021 ProPublica investigation provides the federal analog: the 25 richest Americans saw net worth rise $401 billion (2014–2018) while paying $13.6 billion in income tax — a 3.4% rate against a 14.5% national average. ### The Count That Undercuts the Exodus Narrative The most politically damaging data point for opponents: despite high-profile departure announcements, the number of billionaires residing in California **rose** during 2026 — from **239 in January to 253 by early May**, per NBER. The loud exits ([[Peter Thiel]], [[Larry Page]], [[Sergey Brin]], [[Travis Kalanick]], lending magnate Don Hankey to Nevada, director Steven Spielberg to New York) were real but statistically swamped by new billionaires minted in the same window. Post-cutoff departure claims by [[Mark Zuckerberg]] and [[David Sacks]] (who moved after the Jan 1 residency deadline) are expected to draw court challenges over whether they actually escaped liability. ### The Counter-Analyses The study is contested, and the dispute is itself a useful map of the fight: - **Hoover Institution (Mar 2026)** — the libertarian-leaning think tank put the net present value far lower, around **$40 billion**, and argued it could turn negative once future departures are priced in. - **Newsom and progressive skeptics** — Gov. [[Gavin Newsom]] opposes the measure on competitiveness grounds; even some pro-tax economists argue a *one-time* levy does little about the underlying buy-borrow-die problem and favor a permanent capital-gains structure instead. - **Conservative commentators** — Mike Solana of [[Founders Fund]] (Thiel's firm) predicts more departures if it passes. The analytical core of the dispute is whether you model billionaires as mobile (Hoover) or sticky (NBER). The early-2026 head-count rising, not falling, is the single fact most favorable to the NBER "sticky" model. ## KB Significance **1. Wealth concentration meets democratic accountability:** The CA Billionaires Tax is the most ambitious direct-democracy challenge to concentrated wealth since the [[Gilded Age]]. If ~200 people can spend $50M+ to defeat a tax that would fund healthcare for millions, it tests the fundamental premise of democratic self-governance. **2. Tech oligarch political mobilization:** Brin's $57M campaign represents the tech billionaire class moving from behind-the-scenes political influence (donations, lobbying) to direct public confrontation with elected officials and ballot measures. This parallels and extends the [[All-In Podcast]] political operation, the Sacks/Chamath/Thiel fundraiser model, and Musk's DOGE role. **3. The MAGA pipeline at the top:** GG Soto's role illustrates how MAGA cultural identity penetrates even the most elite tech circles. Brin in a MAGA hat is a data point the KB should track alongside Musk's rightward turn, Sacks' Trump embrace, and Thiel's original MAGA investment. **4. Geographic flight as class warfare:** Brin and Page fleeing to Nevada to avoid the tax while spending $57M to defeat it represents the two-track billionaire strategy: move your money and fight politically. This connects to Thiel's Argentina move, the broader tech billionaire exit trend, and the structural question of whether democratic taxation can function when wealth is mobile. ## Development Log | Date | Development | Source | |------|------------|--------| | **Late 2025** | SEIU-UHW begins signature collection for ballot initiative | KQED | | **Dec 2025** | Brin and Soto confront Newsom at Larsen treehouse party | Fortune | | **Early 2026** | Brin moves to $42M Lake Tahoe mansion (Nevada side); Larry Page also leaves CA | Multiple outlets | | **Early 2026** | Brin contributes $57M+ to "Building a Better California" in four months | Fortune, Bloomberg | | **Apr 2026** | 1.5M+ signatures submitted (nearly double 850K required); validation in progress | KQED, ABC | | **Apr 2026** | Brin makes rare public statement comparing tax to Soviet socialism | Fox Business | | **Apr 27, 2026** | NYT profiles Brin/Soto MAGA connection and billionaire tax opposition | NYT | | **Apr 27–29, 2026** | 1.55M signatures submitted (nearly double 874,641 required); Secretary of State has until June 25 to validate | NBC, CBS, Ballotpedia | | **Late Apr 2026** | Six of CA's ~214 billionaires left before Jan 1 cutoff (Page, Brin, Kalanick, others) — wiping out ~$26.8B in taxable wealth (>25% of projected take) | SEIU-UHW analysis | | **Apr 27, 2026** | **1.5M+ signatures submitted** to Secretary of State for validation | NBC, CBS, Ballotpedia | | **May 4, 2026** | **TWO competing counter-initiatives submitted** with ~1.4M combined signatures — both are **constitutional amendments to prohibit wealth taxes** in California, attempting to preemptively block the billionaires tax even if it passes. Verification underway for all three measures; **June 25 deadline** for Secretary of State validation | Secretary of State filings, CalMatters | | **May 25, 2026** | **NBER working paper (Boll, Saez & Zucman, WP 35218)** finds it would take ~25 years of forgone income tax for total billionaire flight to cost the state what the $100B levy raises in five (a century if only a quarter leave); 80%+ of billionaire wealth is untaxed unrealized gains; CA billionaire count *rose* 239→253 in early 2026 | NBER, Fortune | | **May 27, 2026** | Fortune amplifies the NBER study; juxtaposes [[Jensen Huang]] (staying) against post-cutoff departure claims by [[Mark Zuckerberg]] and [[David Sacks]]; notes Hoover Institution's competing ~$40B (possibly negative) estimate | Fortune, Hoover | | **Jun 17, 2026** | **Qualifies** with 980,438 valid signatures; becomes **Proposition 40** on the Nov 3 ballot alongside competing Props 41 and 42 | Ballotpedia News, LAO | | **Aug 2, 2026** | California Democratic Party endorses, 145–90 on a second vote | SF Standard | | **Aug 18, 2026** | [[Chris Larsen]] adds $10M and [[John Doerr]] adds money to Building a Better California; Brin's total reaches about $102M | Fortune, SF Standard | | **Aug 26, 2026** | San Francisco Democratic Party votes to **oppose**, breaking with the state party | Mission Local, SF Standard | | **Sep 15–22, 2026** | Berkeley IGS (45–42) and Citrin/POLITICO (45–43) polls show the race roughly even | San José Inside, The Hill | | **Oct 1–2, 2026** | Opposition money passes $200M (including the Prop 41/42 committees); CalMatters rates the Business Roundtable's "Trojan horse" ad partly true | CalMatters | ## Next Steps to Track - ~~Three-way signature validation~~ — resolved June 17, 2026: the tax qualified as Prop 40; the competing measures are Props 41 and 42 (see Status above) - **Counter-amendment strategy** — if both the tax AND the constitutional ban qualify, voters face a contradictory ballot; the amendment would likely supersede the tax initiative - **Opposition spending** — total $ and strategy as election approaches; Brin's $57M+ growing - **Polling** — public opinion on taxing billionaires for healthcare - **Legal challenges** — constitutional questions about state wealth taxes; counter-amendments add complexity - **Billionaire flight** — how many of the 214 CA billionaires establish residency elsewhere - **November 2026 vote** — the result and its national implications - **Brin political trajectory** — whether MAGA hat photo and Soto connection signal deeper political shift ## See Also - [[Sergey Brin]] — Lead opposition figure; $57M+ campaign - [[Peter Thiel]] — Parallel billionaire geographic flight; Argentina move - [[Thiel Argentina Move]] — Tech oligarch exit strategy pattern - [[Brian Armstrong]] — Coinbase CEO; Brin coalition member; Fairshake crypto PAC - [[Buy, Borrow, Die]] — The unrealized-gains mechanism the NBER study identifies as why income tax never reaches this class - [[California Tech Exodus Ecosystem]] — The broader tax-flight narrative the NBER head-count data complicates - [[Daniel Lurie]] — San Francisco mayor; opposed Prop 40 in January 2026 - [[San Francisco Overpaid CEO Tax]] — The June 2026 city-level executive-pay tax fight, with many of the same donors - [[Dark Money Ecosystem]] — The funding architecture of political opposition