# Proposition 42: Prohibits New State Personal Property Taxes and Certain Retroactive State Taxes *measure · California statewide proposition* — November 3, 2026 General Election (2026-11-03), Los Angeles County, California Research pack generated 2026-10-30T23:52:30+00:00 by ballotscope. Summaries are LLM-generated from the linked originals and may contain errors; check the originals before relying on anything. Sources span 2026-01-27 to 2026-10-13. ## Overview (as of 2026-10-29, from 23 sources) Prop. 42 would bar any state law or constitutional provision enacted on or after January 1, 2026 from taxing the ownership or control of personal property, which the text defines to include all tangible and intangible personal property, not only retirement accounts [Text of Proposed Law: Proposition 42 (Official Voter Information Guide, Text of Proposed Laws, PDF pages 51–54); Proposition 42 Official Title and Summary and Analysis by the Legislative Analyst]. It would also bar new taxes that impose liability for conduct, activities, or status before the tax took effect, expressly including residency on a past date, with a narrow emergency exception for the Legislature [Text of Proposed Law: Proposition 42 (Official Voter Information Guide, Text of Proposed Laws, PDF pages 51–54)]. Real property and taxes first collected by the end of 2025 are excluded [Text of Proposed Law: Proposition 42 (Official Voter Information Guide, Text of Proposed Laws, PDF pages 51–54)]. Its competing-measures clause deems any same-ballot initiative imposing such a tax to be in conflict and, if Prop. 42 gets more yes votes, voids every provision of that measure [Text of Proposed Law: Proposition 42 (Official Voter Information Guide, Text of Proposed Laws, PDF pages 51–54); If California's Prop 42 passes with more votes than Prop 40, it could nullify the billionaire wealth tax]. The Legislative Analyst says courts could find it conflicts with Prop. 40, the billionaire tax, so Prop. 40 could be stopped even with majority support; it also says Prop. 42 could reduce future revenue by an unclear amount [Proposition 42 Official Title and Summary and Analysis by the Legislative Analyst; Proposition 42 Voter Guide Section: Title and Summary, Legislative Analyst's Analysis, and Arguments (PDF)]. News coverage describes it as one of two countermeasures to Prop. 40 funded by Building a Better California, largely bankrolled by Sergey Brin [The billionaire tax could be defeated by two other tax measures. Here's how; Google co-founder Brin spends more than $100M fighting California wealth tax; Gavin Newsom backs measure to kill the billionaire tax and ban future wealth taxes]. Supporters, including firefighter, building trades, peace officer, veterans and small business groups and, since October 9, Gov. Gavin Newsom, say it protects savings from double and retroactive taxation [Proposition 42 Arguments and Rebuttals; Gavin Newsom backs measure to kill the billionaire tax and ban future wealth taxes]. SEIU-United Healthcare Workers West and the California Democratic Party call it a billionaire-funded trick to cancel Prop. 40 [Proposition 42 Arguments and Rebuttals; Proposition 42: Property taxes]. Through October 22 the support committee reported about $128 million and opponents about $22.7 million [Proposition 42 ballot measure contribution totals]. A September PPIC poll found slim majorities backing Props. 40, 41 and 42 at once [The billionaire tax could be defeated by two other tax measures. Here's how; If California's Prop 42 passes with more votes than Prop 40, it could nullify the billionaire wealth tax]. ### Record highlights - The Attorney General's title (February 11, 2026) dropped the word 'Retirement' that proponents had requested. [If California's Prop 42 passes with more votes than Prop 40, it could nullify the billionaire wealth tax] - Gov. Gavin Newsom endorsed Prop. 42 on October 9, 2026; he had not taken a position on Prop. 41. [Gavin Newsom backs measure to kill the billionaire tax and ban future wealth taxes; Gavin Newsom backs measure to kill the billionaire tax and ban future wealth taxes (CalMatters, republished); Newsom Endorses Ballot Measure That Would Cancel Out Billionaire Tax—and Ban Future Wealth Taxes] - Through October 22, 2026, Yes on 42 reported $127,977,037 in contributions; opposition committees reported $22,741,302, including $21,249,723 for the SEIU-UHW-sponsored committee. [Proposition 42 ballot measure contribution totals] - As of August 14, 2026, Brin had given $102 million to Building a Better California, which funds Props. 41 and 42. [Google co-founder Brin spends more than $100M fighting California wealth tax] - September 2026 PPIC survey: 52% of likely voters for Prop. 40, 51% for Prop. 41, 54% for Prop. 42 (margin of error 3.8 points). [If California's Prop 42 passes with more votes than Prop 40, it could nullify the billionaire wealth tax; The billionaire tax could be defeated by two other tax measures. Here's how] ### Stated positions - Measure text: its purpose is to prohibit new taxes on personal property and to require all new taxes to apply only prospectively. [Text of Proposed Law: Proposition 42 (Official Voter Information Guide, Text of Proposed Laws, PDF pages 51–54)] - Spokesperson Nathan Click (October 2026): Prop. 40 is 'just the latest example' of attempts to tax retirement savings, and Prop. 42 protects against them 'regardless of how Prop 40 turns out.' [If California's Prop 42 passes with more votes than Prop 40, it could nullify the billionaire wealth tax] - Gov. Newsom (October 9, 2026): Californians 'deserve to have their retirement and life savings protected from new state taxes.' [Gavin Newsom backs measure to kill the billionaire tax and ban future wealth taxes; Gavin Newsom backs measure to kill the billionaire tax and ban future wealth taxes (CalMatters, republished)] - SEIU-UHW (ballot arguments): Prop. 42 was put on the ballot to undo Prop. 40. [Proposition 42 Arguments and Rebuttals; Proposition 42 Voter Guide Section: Title and Summary, Legislative Analyst's Analysis, and Arguments (PDF)] ### Where sources disagree - How certain the outcome is: the Legislative Analyst says Prop. 40 'could be stopped' if courts find a conflict [S15, S10]; CalMatters says flatly the billionaire tax does not take effect if 41 or 42 outpolls it [S12]; attorney Chuck Bell says Prop. 42 needs only one more vote [S23]. [Proposition 42 Official Title and Summary and Analysis by the Legislative Analyst; Proposition 42 Voter Guide Section: Title and Summary, Legislative Analyst's Analysis, and Arguments (PDF); The billionaire tax could be defeated by two other tax measures. Here's how; If California's Prop 42 passes with more votes than Prop 40, it could nullify the billionaire wealth tax] - Prior proposals to tax retirement savings: six per the ballot argument [S1], five per Nathan Click [S23], proposals in 2019, 2022 and 2024 per 401(k) Specialist [S17]; CalMatters says there is no such current proposal [S20]. [Proposition 42 Arguments and Rebuttals; If California's Prop 42 passes with more votes than Prop 40, it could nullify the billionaire wealth tax; Anti-tax proposal seeks to protect California retirement savers; Gavin Newsom backs measure to kill the billionaire tax and ban future wealth taxes] - Local reach: the LAO's January 2026 letter says the measure restricts the state and local governments [S6]; the ballot analysis speaks of the state [S8, S15]. The text bans taxes by 'state law' [S3]. [Initiative 25-0041 fiscal analysis; Proposition 42 Analysis (November 3, 2026); Proposition 42 Official Title and Summary and Analysis by the Legislative Analyst; Text of Proposed Law: Proposition 42 (Official Voter Information Guide, Text of Proposed Laws, PDF pages 51–54)] - How much it changes current law: Hoover calls the change negligible because the state does not now tax intangible assets [S4]; the LAO says it could reduce future revenue by an unclear amount [S8]. [Proposition Lab: Proposition 42 (California Decides); Proposition 42 Analysis (November 3, 2026)] - Funding figures vary by date and scope: over $57 million from Brin per opponents [S1], $102 million to Building a Better California by August [S9], $131 million raised for Props. 41 and 42 [S12], about $128 million for the Prop. 42 committee by October 22 [S2]. [Proposition 42 Arguments and Rebuttals; Google co-founder Brin spends more than $100M fighting California wealth tax; The billionaire tax could be defeated by two other tax measures. Here's how; Proposition 42 ballot measure contribution totals] ### Gaps - No editorial board text captured directly; the San Francisco Chronicle's position is known only through quotations. - No top-contributor list for the Yes on 42 committee; funder information comes from news reports on Building a Better California. - No independent legal analysis of how the retroactivity ban would affect routine tax legislation, or how the conflict clauses would be litigated. - The Legislative Analyst gives no dollar estimate. - Few supporter-authored sources beyond ballot arguments and campaign quotes; the yes campaign's own site was not collected. - One news story on Newsom's endorsement (GV Wire) could not be fetched (HTTP 403). ### Arguments for / praise - The Constitution now lets the Legislature tax the value of retirement funds and savings already taxed as income; Prop. 42 closes that 'double taxation' opening for everyone. — *California Professional Firefighters, State Building and Construction Trades Council of California, California Small Business Association, AMVETS Department of California, California Senior Alliance* [Proposition 42 Arguments and Rebuttals; Proposition 42 Arguments and Rebuttals (PDF); Proposition 42 Voter Guide Section: Title and Summary, Legislative Analyst's Analysis, and Arguments (PDF)] - Retroactive taxes are unfair and disrupt financial planning; people deserve stable, predictable rules. — *Yes on 42 ballot argument, Sean Morgan, financial advisor (quoted by supporters)* [Proposition 42 Arguments and Rebuttals; Text of Proposed Law: Proposition 42 (Official Voter Information Guide, Text of Proposed Laws, PDF pages 51–54)] - Lawmakers have repeatedly proposed taxing retirement savings and personal property, so the authority is real and needs a constitutional limit. — *Nathan Click, Prop. 42 spokesperson, Yes on 42 ballot argument* [If California's Prop 42 passes with more votes than Prop 40, it could nullify the billionaire wealth tax; Proposition 42 Arguments and Rebuttals; Anti-tax proposal seeks to protect California retirement savers] - A credible ban could reassure high-income households and slow out-migration; a clear conflict clause beats courts deciding which parts of Prop. 40 survive. — *Hoover Institution* [Proposition Lab: Proposition 42 (California Decides)] - A 1% asset tax could cut retirement income by 20% to 37%, per a study supporters cite. — *Brad Williams (study cited by supporters), Robert Gutierrez, California Taxpayers Association* [Anti-tax proposal seeks to protect California retirement savers] ### Arguments against / criticism - Prop. 42 is a billionaire-funded measure meant to cancel Prop. 40, and its retirement framing is a trick; it lets about 200 billionaires keep avoiding taxes. — *SEIU-United Healthcare Workers West* [Proposition 42 Arguments and Rebuttals; Proposition 42 Voter Guide Section: Title and Summary, Legislative Analyst's Analysis, and Arguments (PDF); Proposition 42: Property taxes] - There is no current proposal to tax retirement accounts as assets; past asset-tax bills went nowhere, and Prop. 40 exempts many retirement accounts. — *CalMatters (reporting), San Francisco Chronicle editorial board (as reported)* [Gavin Newsom backs measure to kill the billionaire tax and ban future wealth taxes; Anti-tax proposal seeks to protect California retirement savers] - Prop. 42's true target is Prop. 40, and supporters overstate the threat to 401(k)s. — *San Francisco Chronicle editorial board (as quoted)* [Newsom Endorses Ballot Measure That Would Cancel Out Billionaire Tax—and Ban Future Wealth Taxes; Anti-tax proposal seeks to protect California retirement savers] - Billionaires would rather Californians lose healthcare than pay a one-time tax. — *Debru Carthan, SEIU-UHW* [Google co-founder Brin spends more than $100M fighting California wealth tax; Gavin Newsom backs measure to kill the billionaire tax and ban future wealth taxes] ## Text analysis (as of 2026-10-29) Coverage: Complete official text of Proposition 42 as printed in the Secretary of State's Official Voter Information Guide, Text of Proposed Laws (S2): Sections 1 to 9, including new Article VIII, Secs. 1 to 4. The measure only adds new language (printed in italics), so the stored text's loss of formatting hides no deletions. The GrowSF copy used earlier differs only editorially (hyphenation, commas, capitalization, one paraphrased cross-reference); no operative wording differs. Drafting quality: **mixed**. Short, well organized, and explicit about competing measures: it says which same-ballot measures conflict, what happens if it outpolls them, and what happens if a winning rival is later struck down. Its operative terms are less precise. The defined phrase 'retirement holdings, individually owned assets, and other forms of personal savings' reaches all tangible and intangible personal property, far beyond its label. The retroactivity ban turns on 'conduct, activities, or a status' predating a tax, a test whose reach over ordinary tax-year changes is unclear, and the grandfather clause does not say whether changes to existing taxes count as new. Severability, effective date, and legal-defense sections are standard California initiative practice. - **special clause** (high, Sec. 5(a)(1)): The competing-measure ('poison pill') clause names no proposition. It declares in advance that any same-ballot initiative that would tax ownership or control of the covered property, or impose liability based on pre-effective-date 'conduct, activities, or a status', is in conflict; if Prop. 42 gets more yes votes, every provision of that measure is void, including non-tax provisions such as revenue spending. The conflict trigger omits Art. VIII's 'operates retroactively' qualifier. Competing-measure clauses are common; voiding the whole rival measure by a self-declared subject-matter test is the aggressive form, and whether courts honor a self-declared conflict is not settled by the text. — "then that other initiative measure shall be deemed to be in conflict with this measure. In the event that this initiative measure receives a greater number of affirmative votes, the provisions of this measure shall prevail in their entirety, and all the provisions of the other measure shall be null and void." [Text of Proposed Law: Proposition 42 (Official Voter Information Guide, Text of Proposed Laws, PDF pages 51–54)] - **special clause** (high, Art. VIII, Sec. 4): A second route to same-ballot measures, inside the constitutional article itself and not conditioned on Prop. 42 receiving more votes. The text does not say how this fits with Sec. 5 or what it does if a rival measure outpolls Prop. 42. — "This article applies to all statewide initiative measures submitted to the electors on or after January 1, 2026, including measures that appear on the ballot at the same election at which the measure adding this article is approved by the electors." [Text of Proposed Law: Proposition 42 (Official Voter Information Guide, Text of Proposed Laws, PDF pages 51–54)] - **duration** (medium, Art. VIII, Sec. 1(a)): The ban reaches back to laws enacted from January 1, 2026, before the measure's own effective date (Sec. 7), and has no sunset. Its claim to bind later 'provision[s] of this Constitution' leaves open how a later voter-approved amendment that does not expressly repeal Article VIII would be treated. — "No state law and no provision of this Constitution enacted on or after January 1, 2026, may enact, create, impose, or authorize collection of a tax on the ownership or control of retirement holdings, individually owned assets, and other forms of personal savings, whether held directly or indirectly." [Text of Proposed Law: Proposition 42 (Official Voter Information Guide, Text of Proposed Laws, PDF pages 51–54)] - **expansive language** (high, Art. VIII, Sec. 3(a)): The label suggests savings vehicles, but the definition covers all personal property through an open-ended list. With Sec. 8's liberal-construction directive, the ban would reach any new state tax on owning vehicles, equipment, inventory, or business interests, not only retirement accounts. The measure's name understates its scope. — "and all personal property, whether tangible or intangible, including, but not limited to, financial assets, investment accounts, business interests, digital assets, intellectual property, personal belongings, and other assets used to produce or collect income or savings for retirement or financial planning." [Text of Proposed Law: Proposition 42 (Official Voter Information Guide, Text of Proposed Laws, PDF pages 51–54)] - **ambiguity** (high, Art. VIII, Sec. 2(a)(1)): Unclear whether a routine mid-year tax change applied to the full tax year (for example, a rate change enacted in June covering income since January) is 'retroactive'. Read literally, it is. 'A status that ... was present prior to' could also reach taxes on a continuing status, such as residence or ownership that began before the tax. The Legislature's only relief is the emergency exception in Sec. 2(c); initiatives get none. — "a tax that operates retroactively to result in tax liability based on conduct, activities, or a status that occurred or was present prior to the effective date of the state law or constitutional provision." [Text of Proposed Law: Proposition 42 (Official Voter Information Guide, Text of Proposed Laws, PDF pages 51–54)] - **special clause** (high, Art. VIII, Sec. 2(a)(2)): Expressly bars taxes keyed to residency on a past date. News sources describe Prop. 40 as using a January 1, 2026 residency date, so this targets that design through the constitutional ban as well as the Sec. 5 conflict clause. — "This subdivision also applies to a tax that is imposed on a taxpayer based upon their residency status on a date prior to the effective date of the tax." [Text of Proposed Law: Proposition 42 (Official Voter Information Guide, Text of Proposed Laws, PDF pages 51–54)] - **carve out** (medium, Art. VIII, Sec. 2(c)): The only exception: legislative taxes reaching back no more than 365 days, and only after a governor-declared disaster or fiscal emergency with revenue limited to it. Retroactive taxes proposed by initiative get no exception, and the Governor's declaration becomes a gate. — "Subdivision (a) shall not apply to a tax imposed by a statute passed by the Legislature on or after January 1, 2026, where both of the following apply:" [Text of Proposed Law: Proposition 42 (Official Voter Information Guide, Text of Proposed Laws, PDF pages 51–54)] - **ambiguity** (medium, Art. VIII, Sec. 1(b); Sec. 2(b)): Existing taxes such as the vehicle license fee and business personal property tax are protected only if all three conditions were met by the end of 2025. The text does not say whether raising, broadening, or restructuring a grandfathered tax creates a 'new' tax, or how a tax enacted in 2025 but first collected in 2026 is treated. — "Nothing in this section shall alter or limit the imposition or collection of any tax that was in effect, imposed, and first collected on or before December 31, 2025." [Text of Proposed Law: Proposition 42 (Official Voter Information Guide, Text of Proposed Laws, PDF pages 51–54)] - **gap** (medium, Art. VIII, Sec. 3(b)): The ban covers a 'state law' and borrows the state-level definition of 'tax'. A state law that authorizes a new local personal property tax appears covered, but taxes adopted by charter cities or counties under their own authority are not expressly addressed. — "“Tax” means a tax as defined in subdivision (b) of Section 3 of Article XIII A." [Text of Proposed Law: Proposition 42 (Official Voter Information Guide, Text of Proposed Laws, PDF pages 51–54)] - **carve out** (low, Art. VIII, Sec. 1(c)): Real property is excluded, so taxes on land and buildings are unaffected. — "Nothing in this section shall alter or affect the taxation of real property as provided in other provisions of this Constitution." [Text of Proposed Law: Proposition 42 (Official Voter Information Guide, Text of Proposed Laws, PDF pages 51–54)] - **other** (low, Sec. 5(b)): Standard revival clause: if a rival measure wins and is later struck down, Prop. 42 takes full effect. — "If this initiative measure is approved by the voters but superseded in whole or in part by any other conflicting initiative measure approved by the voters at the same election, and such conflicting measure is later held invalid, this measure shall be self-executing and given full force and effect." [Text of Proposed Law: Proposition 42 (Official Voter Information Guide, Text of Proposed Laws, PDF pages 51–54)] - **enforcement** (low, Sec. 9(c)): If the Governor and Attorney General both decline to defend, the Attorney General must appoint independent counsel, paid by an uncapped continuous appropriation. Such sections are common in recent initiatives; this one triggers on any challenge that 'attempts to limit the scope or application of this act in any way.' — "a continuous appropriation is hereby made from the General Fund to the Controller, without regard to fiscal years, in an amount necessary to cover the costs of retaining independent counsel" [Text of Proposed Law: Proposition 42 (Official Voter Information Guide, Text of Proposed Laws, PDF pages 51–54)] - **expansive language** (low, Sec. 8): Routine on its own, but paired with the open-ended definition and a stated purpose of 'requiring all new taxes to only apply prospectively' (Sec. 3), it pushes close cases toward the broader reading of both bans. — "This act shall be liberally construed to give effect to its intent and purposes." [Text of Proposed Law: Proposition 42 (Official Voter Information Guide, Text of Proposed Laws, PDF pages 51–54)] - Beneficiary: Owners of personal property that a future state ownership-based tax could reach, in proportion to their holdings: No new state tax may be levied on owning or controlling any tangible or intangible personal property, so the largest holders avoid the largest potential liabilities. — "including, but not limited to, financial assets, investment accounts, business interests, digital assets, intellectual property, personal belongings" [Text of Proposed Law: Proposition 42 (Official Voter Information Guide, Text of Proposed Laws, PDF pages 51–54)] - Beneficiary: Holders of pensions and retirement accounts: Named expressly, so no new state tax could be imposed on their value. — "means pensions; retirement accounts including, but not limited to, 401(k) accounts, 403(b) accounts, and all other individual retirement accounts; mutual funds;" [Text of Proposed Law: Proposition 42 (Official Voter Information Guide, Text of Proposed Laws, PDF pages 51–54)] - Beneficiary: People who were California residents on a past date but have since moved: Taxes keyed to residency on a date before the tax took effect are barred. — "based upon their residency status on a date prior to the effective date of the tax" [Text of Proposed Law: Proposition 42 (Official Voter Information Guide, Text of Proposed Laws, PDF pages 51–54)] - Beneficiary: Persons who would owe tax under a same-ballot initiative taxing ownership of personal property or past status: If Prop. 42 receives more votes, every provision of that measure is void. — "all the provisions of the other measure shall be null and void" [Text of Proposed Law: Proposition 42 (Official Voter Information Guide, Text of Proposed Laws, PDF pages 51–54)] Limitations: Covers only Prop. 42's own text. Prop. 40's residency date comes from news sources, not from Prop. 40's text. How Sec. 5 and Art. VIII, Sec. 4 operate against a competing measure depends on Article II, Section 10(b) of the California Constitution and on court rulings, which the text does not resolve. Beneficiaries are identified from the text only. ## Timeline (newest first) - **2026-10-13** — Published: Newsom backs Prop 42: it kills billionaire tax, bans future wealth taxes (GV Wire) - **2026-10-12** — Published: If California's Prop 42 passes with more votes than Prop 40, it could nullify the billionaire wealth tax (10News (KGTV)) - **2026-10-11** — Published: Newsom Endorses Ballot Measure That Would Cancel Out Billionaire Tax—and Ban Future Wealth Taxes (Common Dreams) - **2026-10-10** — Published: Gavin Newsom backs measure to kill the billionaire tax and ban future wealth taxes (CalMatters, republished) (LAist) - **2026-10-09** — Published: Gavin Newsom backs measure to kill the billionaire tax and ban future wealth taxes (CalMatters) - **2026-10-09** — Gov. Newsom endorsed Proposition 42 (CalMatters) - **2026-10-09** — Gov. Newsom endorses Prop. 42 (LAist) - **2026-10-01** — Published: Proposition 42 would ban new personal property taxes (KPBS) - **2026-10-01** — Published: Proposition 42: Property taxes (CalMatters) - **2026-09-29** — Published: Anti-tax proposal seeks to protect California retirement savers (401(k) Specialist) - **2026-09-28** — Published: Proposition 42 Official Title and Summary and Analysis by the Legislative Analyst (California Secretary of State) - **2026-09-28** — Published: Proposition 42 Arguments and Rebuttals (PDF) (California Secretary of State) - **2026-09-27** — Published: The Billionaire Tax Could Be Defeated by Two Other Tax Measures. Here's How (CalMatters, republished) (Santa Barbara Independent) - **2026-09-24** — Published: The billionaire tax could be defeated by two other tax measures. Here's how (CalMatters) - **2026-09-24** — CalMatters reported on the Prop. 40/41/42 conflict and PPIC polling (CalMatters) - **2026-09-24** — Published: Prop 40: The billionaire tax could be defeated by two other tax measures (CalMatters, republished) (LAist) - **2026-09-23** — Published: Prop. 42: The initiative that could stop the billionaire's tax in its tracks (LAist) - **2026-09-23** — LAist published its Prop. 42 voter guide (LAist) - **2026-08-26** — Published: Proposition 42 Voter Guide Section: Title and Summary, Legislative Analyst's Analysis, and Arguments (PDF) (California Secretary of State) - **2026-08-14** — Published: Google co-founder Brin spends more than $100M fighting California wealth tax (News Tribune) - **2026-08-14** — LA Times reported Brin's $102 million in contributions to Building a Better California (News Tribune) - **2026-07-16** — Published: Proposition 42 Analysis (November 3, 2026) (Legislative Analyst's Office) - **2026-07-14** — Published: Proposition 42 Annotated Legal Text (GrowSF copy; unofficial) (GrowSF) - **2026-02-11** — Attorney General issued Prop. 42's official title and summary (10News (KGTV)) - **2026-01-27** — Published: Initiative 25-0041 fiscal analysis (Legislative Analyst's Office) - **2026-01-27** — LAO issued its fiscal analysis of initiative 25-0041 (Amendment #1) (Legislative Analyst's Office) - **2026-01-12** — Prop. 42 backers filed an amended version (10News (KGTV)) - **2026-01-12** — Amended initiative language filed (per Hoover) (Hoover Institution) - **2025-12-08** — Prop. 42 supporters filed initiative paperwork (per KSBY timeline) (10News (KGTV)) ## Sources ### Newsom backs Prop 42: it kills billionaire tax, bans future wealth taxes - GV Wire · news · published 2026-10-13 · stance: neutral - ### If California's Prop 42 passes with more votes than Prop 40, it could nullify the billionaire wealth tax - 10News (KGTV) · news · published 2026-10-12 · stance: neutral - A KSBY News report (published on 10News) on how Proposition 42's conflicting-measures clause (Section 5) could keep Proposition 40 from taking effect even if both pass. It quotes the clause, a statement from Prop. 42 spokesperson Nathan Click, and retired election law attorney Chuck Bell, gives a filing timeline, and reports September PPIC polling. - It quotes Section 5 of Prop. 42, which deems any same-ballot initiative taxing ownership of retirement holdings or imposing retroactive liability to be in conflict, and voids it if Prop. 42 gets more votes. - Prop. 42 spokesperson Nathan Click says the Legislature already has the power to tax personal property, that Prop. 40 is 'just the latest example of this emerging threat,' and that Prop. 42 protects against retirement taxes 'regardless of how Prop 40 turns out.' - Chuck Bell says Prop. 42 needs only one more vote than Prop. 40 to prevail. - PPIC's September survey: 52% would vote yes on Prop. 40, 51% on Prop. 41, and 54% on Prop. 42 (margin of error 3.8 points). - The Attorney General's title, issued Feb. 11, 2026, dropped the word 'Retirement' that proponents had requested. - Reference: Yes on Prop 42 campaign - Reference: Yes on 40 / No on 41 and 42 campaign - Reference: Secretary of State voter guide, Prop 42 - Reference: Ballot arguments and rebuttals, Prop 42 - Reference: PPIC September survey ### Newsom Endorses Ballot Measure That Would Cancel Out Billionaire Tax—and Ban Future Wealth Taxes - Common Dreams · news · published 2026-10-11 · stance: oppose - A Common Dreams news article (October 11, 2026) on Gov. Gavin Newsom's endorsement of Prop. 42. It reports that the measure would cancel the billionaire tax and ban future wealth taxes, quotes Newsom's statement, and gives most of its space to critics, including SEIU-UHW, the San Francisco Chronicle editorial board, and Rep. Ro Khanna. - Newsom endorsed Prop. 42 on Friday (October 9), saying Californians deserve to have retirement and life savings protected from new state taxes. - Common Dreams reports that Prop. 42 is funded by Building a Better California, bankrolled by Sergey Brin and other billionaires. - Critics call Prop. 42 a 'poison-pill measure' that fearmongers about a nonexistent threat to retirement savings. - The San Francisco Chronicle editorial board wrote that Prop. 42's 'true target is Prop 40' and urged a no vote. - Reference: Yes on 42 campaign statement on Newsom endorsement - Reference: San Francisco Chronicle editorial on Prop 42 - Reference: CalMatters on Newsom's ballot positions ### Gavin Newsom backs measure to kill the billionaire tax and ban future wealth taxes (CalMatters, republished) - LAist · news · published 2026-10-10 · stance: neutral - LAist republication of a CalMatters report (Jeanne Kuang) that Gov. Gavin Newsom endorsed Prop. 42, which the article says would cancel out Prop. 40's billionaire tax and go further by banning any new personal property taxes. Covers proponents' and opponents' reactions and the political context of the endorsement. - Newsom endorsed Prop. 42 on the Friday before publication, alongside positions on most of the 14 ballot measures. - The article says Prop. 42 would block Prop. 40's one-time 5% tax keyed to January 1, 2026 residency, and would also ban new taxes on pensions, 401(k)s before withdrawal, investments, business holdings, and art collections. - It reports Prop. 42 was funded and placed on the ballot by Google co-founder Sergey Brin, with police and fire unions among proponents. - It states there is no current proposal to tax retirement accounts as assets, that past asset-tax bills went nowhere, and that Prop. 40 exempts many retirement accounts. - Newsom had not yet taken a position on Prop. 41, another Brin-backed countermeasure. - Reference: CalMatters original article - Reference: CalMatters: how Props. 41 and 42 could cancel Prop. 40 - Reference: CalMatters fact check on Prop. 40 and retirement accounts - Reference: PPIC polling on propositions ### Gavin Newsom backs measure to kill the billionaire tax and ban future wealth taxes - CalMatters · news · published 2026-10-09 · stance: neutral - A CalMatters report by Jeanne Kuang (October 10, 2026) on Gov. Gavin Newsom's endorsement of Prop. 42. It reports that the measure would cancel Prop. 40 through its retroactivity ban and would also ban new personal property taxes generally. It includes CalMatters' observation that there is no current proposal to tax retirement accounts, plus reactions from SEIU-UHW and Rep. Ro Khanna. - Newsom endorsed Prop. 42 on Friday along with his positions on most of the 14 ballot measures; he had not taken a position on Prop. 41. - CalMatters reports that Prop. 42 was funded and placed on the ballot by Sergey Brin to defeat the billionaire tax. - CalMatters says the ban covers pensions and 401(k)s before retirees draw on them, plus investments, business holdings, and art. - CalMatters writes that proponents argue retirement accounts should never be taxed as assets 'even though there is no such proposal,' noting prior asset-tax bills went nowhere and the billionaire tax exempts many retirement accounts. - Newsom has generally opposed state-level asset taxes out of concern the wealthy will leave. - Reference: CalMatters fact check on retirement accounts and the billionaire tax - Reference: CalMatters: The billionaire tax could be defeated by two other measures - Reference: PPIC on voters split on ballot propositions ### Proposition 42 would ban new personal property taxes - KPBS · news · published 2026-10-01 · stance: neutral - KPBS's republication of the CalMatters explainer on Proposition 42 (published October 1, 2026, updated October 20). It describes the measure as making a California wealth tax much harder by barring new taxes on mere ownership of assets, and notes that, like Prop. 41, it would nullify Prop. 40 if it gets more votes. It lists endorsements on each side. - CalMatters says Prop. 42 would bar new taxes on the mere ownership of assets such as investment accounts, business interests, and personal property. - It would nullify Prop. 40 if it receives more votes, even if the billionaire tax also passes. - CalMatters says it was placed on the ballot by opponents of the billionaire tax. - Supporter endorsements: Reform California, Building a Better California, Sergey Brin, Peace Officers Research Association of California, California Professional Firefighters, State Building and Construction Trades Council. - Opponent endorsements: SEIU-UHW and the California Democratic Party. - Reference: CalMatters guide to Prop 40 - Reference: Secretary of State quick reference guide ### Proposition 42: Property taxes - CalMatters · voter guide · published 2026-10-01 · stance: neutral - CalMatters' voter guide entry on Proposition 42. It describes the measure as making a California wealth tax much harder by barring new taxes on mere ownership of assets, and notes that, like Prop. 41, it would nullify Prop. 40 if it gets more votes. It lists endorsements on each side and media endorsements. - CalMatters says Prop. 42 would bar new taxes on the mere ownership of assets such as investment accounts, business interests, and personal property. - It would nullify Prop. 40 if it receives more votes, even if the billionaire tax also passes. - CalMatters says it was placed on the ballot by opponents of the billionaire tax. - Supporter endorsements: Reform California, Building a Better California, Sergey Brin, Peace Officers Research Association of California, California Professional Firefighters, State Building and Construction Trades Council. - Opponent endorsements: SEIU-UHW and the California Democratic Party. - Media endorsements listed: The San Diego Union-Tribune, The Orange County Register, The Sacramento Bee, San Francisco Chronicle (positions not shown in the captured text). - Reference: San Diego Union-Tribune endorsement editorial - Reference: Orange County Register endorsement editorial - Reference: San Francisco Chronicle editorial on Prop 42 - Reference: CalMatters fact check: could lawmakers expand the billionaire tax to everyone? - Reference: CalMatters guide to Prop 40 - Reference: Secretary of State quick reference guide ### Anti-tax proposal seeks to protect California retirement savers - 401(k) Specialist · news · published 2026-09-29 · stance: neutral - A short 401(k) Specialist trade-press article (September 29, 2026) presenting Prop. 42 as an effort to shield 401(k), pension, and IRA assets from new state taxes. It relays a supporter-commissioned economic study and California Taxpayers Association comments, then notes a San Francisco Chronicle editorial calling the measure aimed at killing Prop. 40. - It says the measure responds to state proposals in 2019, 2022, and 2024 to tax retirement and personal savings. - A study by former LAO chief economist Brad Williams, described as pro-Prop 42 research, estimated a 1% asset tax could cut retirement income by 20% to 37%. - California Taxpayers Association President Robert Gutierrez says a new tax on retirement savings would be devastating. - The San Francisco Chronicle's editorial board says supporters overstated the threat to 401(k)s and that the measure targets Prop. 40; it also notes Prop. 40 excludes pensions and retirement accounts. - Reference: Yes on Prop 42 campaign - Reference: San Francisco Chronicle editorial on Prop 42 ### Proposition 42 Official Title and Summary and Analysis by the Legislative Analyst - California Secretary of State · official analysis · published 2026-09-28 · stance: neutral - The voter guide's official title and summary and Legislative Analyst's analysis for Proposition 42 (pages 62 and 63). It describes current personal property taxes, the measure's ban on new taxes on the ownership of financial assets and other personal property, its limits on retroactive taxes, its possible conflict with Proposition 40, and an unquantified possible reduction in future revenue. - The Attorney General's summary lists business interests, intellectual property, and financial assets (including retirement and investment accounts) as covered personal property. - Covers new taxes enacted or taking effect on or after January 1, 2026. - Other measures on the same ballot are void if they conflict and Prop. 42 receives more affirmative votes. - LAO: the state and local governments now tax some personal property (the vehicle license fee, county property taxes on business equipment); financial assets are not taxed merely for being owned. - LAO: if Prop. 42 receives more yes votes than Prop. 40, courts could find the two conflict and Prop. 40 could be stopped from becoming law. - LAO: future revenues could be lower; when and by how much is unclear. ### Proposition 42 Arguments and Rebuttals (PDF) - California Secretary of State · official analysis · published 2026-09-28 · stance: mixed - PDF version of the official ballot arguments for and against Proposition 42, with rebuttals (voter guide pages 64 and 65). Same content as the HTML arguments page: supporters frame the measure as protecting retirement and savings from double and retroactive taxation; SEIU-UHW frames it as a billionaire-funded measure designed to cancel Proposition 40. - Supporters say California's Constitution allows the Legislature to tax the value of personal property such as retirement funds and savings already taxed as income. - Supporters say the Legislature and special interests introduced six proposals in recent years to tax retirement and savings accounts. - Supporters' rebuttal says Prop. 42 prohibits new taxes on retirement and savings accounts 'including proposals on this year's ballot and in the future.' - Opponents say Prop. 42 was put on the ballot to undo Prop. 40 and name Google co-founder Sergey Brin as a main funder who has spent over $57 million on such measures. - Opponents say Prop. 40 applies only to billionaires and that claims that retirement savings are at risk are fear-mongering. ### The Billionaire Tax Could Be Defeated by Two Other Tax Measures. Here's How (CalMatters, republished) - Santa Barbara Independent · news · published 2026-09-27 · stance: neutral - The Santa Barbara Independent's republication of the CalMatters report by Kristen Hwang on how Propositions 41 and 42, funded by the billionaire-backed group Building a Better California, could defeat Proposition 40 if either gets more votes. It covers what each measure does, PPIC polling, and fundraising. - If Prop. 40 gets more votes than both 41 and 42, the wealth tax takes effect; if either 41 or 42 outpolls it, it does not. - Prop. 42 would bar new taxes on businesses, investments, retirement accounts, trusts, and art collections, which CalMatters calls 'the exact things that Prop. 40 targets,' and would bar retroactive taxes, blocking Prop. 40's Jan. 1, 2026 residency date. - CalMatters reports that either provision alone is enough to nullify Prop. 40 if it gets fewer votes. - PPIC polling shows slim majorities of likely voters support Props. 40, 41, and 42. - Building a Better California raised $131 million for Props. 41 and 42 and more than $187 million in total against Prop. 40; Prop. 40 backers raised about $31 million. - Reference: PPIC Statewide Survey, September 2026 - Reference: FTB analysis of prior wealth tax bill AB 259 - Reference: CalMatters guide to Prop 42 - Reference: CalMatters guide to Prop 40 ### The billionaire tax could be defeated by two other tax measures. Here's how - CalMatters · news · published 2026-09-24 · stance: neutral - A CalMatters report by Kristen Hwang explaining how Propositions 41 and 42, funded by the billionaire-backed group Building a Better California, could defeat Proposition 40, the billionaire tax, if either gets more votes. It describes what each measure does, cites PPIC polling showing slim majorities support all three, and reports campaign fundraising. - If Prop. 40 gets more votes than both 41 and 42, the wealth tax takes effect; if either 41 or 42 outpolls it, it does not. - Prop. 42 would bar new taxes on businesses, investments, retirement accounts, trusts, and art collections, which CalMatters calls 'the exact things that Prop. 40 targets,' and would bar retroactive taxes, blocking Prop. 40's Jan. 1, 2026 residency date. - CalMatters reports that either provision alone is enough to nullify Prop. 40 if it gets fewer votes. - PPIC polling shows slim majorities of likely voters support Props. 40, 41, and 42. - Building a Better California raised $131 million for Props. 41 and 42 and more than $187 million in total against Prop. 40; Prop. 40 backers raised about $31 million. - Reference: PPIC Statewide Survey, September 2026 - Reference: FTB analysis of prior wealth tax bill AB 259 - Reference: CalMatters guide to Prop 42 - Reference: CalMatters guide to Prop 40 ### Prop 40: The billionaire tax could be defeated by two other tax measures (CalMatters, republished) - LAist · news · published 2026-09-24 · stance: neutral - LAist republication of a CalMatters explainer (Kristen Hwang) on how Props. 41 and 42, both backed by the billionaire-funded group Building a Better California, could cancel Prop. 40's billionaire tax if either receives more votes than it does. - If Prop. 40 outpolls both 41 and 42, the wealth tax takes effect; if either countermeasure outpolls Prop. 40, it does not. - Prop. 42 would bar new taxes on personal property such as businesses, investments, retirement accounts, trusts, and art collections, and prohibit retroactive taxes; the article says either provision alone would nullify Prop. 40. - Prop. 40 would levy a one-time 5% tax on residents worth over $1 billion, based on residency as of Jan. 1, 2026. - Building a Better California had raised $131 million for Props. 41 and 42 and more than $187 million total against Prop. 40; Prop. 40's backers had raised about $31 million. - PPIC polling showed slim majorities supporting all three measures. - Reference: CalMatters original article - Reference: CalMatters voter guide: Prop. 42 - Reference: CalMatters voter guide: Prop. 40 - Reference: PPIC September 2026 statewide survey ### Prop. 42: The initiative that could stop the billionaire's tax in its tracks - LAist · voter guide · published 2026-09-23 · stance: neutral - LAist's voter guide to Proposition 42 (published September 23, 2026, updated October 11). It explains the ban on new personal property taxes and most retroactive taxes and says Prop. 42 would effectively kill Prop. 40 if it gets more votes. It gives an example of Prop. 40 assets (intellectual property, artwork, jewelry) that Prop. 42 would put off-limits and lists endorsers on both sides. - Under Prop. 42 the state could not institute new taxes on personal property other than real estate, including retirement accounts, and most new taxes could not be retroactive. - If Prop. 42 gets more votes than Prop. 40, the billionaire tax could be declared void, citing the Secretary of State's analysis. - Supporters' endorsements include the LA/Orange Counties Building and Construction Trades Council, California Professional Firefighters, the California Society of Certified Public Accountants, VICA, and the Greater Los Angeles African American Chamber of Commerce. - Opponents include the California Democratic Party, SEIU-UHW, and supporters of Prop. 40. - A simple majority is needed to pass. - Reference: Secretary of State analysis of Prop 42 - Reference: Ballot arguments and rebuttals - Reference: LAist guide to Prop 40 - Reference: CalMatters: The billionaire tax could be defeated by two other measures ### Proposition 42 Voter Guide Section: Title and Summary, Legislative Analyst's Analysis, and Arguments (PDF) - California Secretary of State · official analysis · published 2026-08-26 · stance: neutral - The Proposition 42 section of the printed Official Voter Information Guide (pages 62 to 65): the Attorney General's official title and summary, the Legislative Analyst's analysis, and the ballot arguments and rebuttals. Despite its file name it does not include the measure's legal text, which the guide says is on page 150. - Attorney General summary: prohibits new state taxes on personal property, including business interests, intellectual property, and financial assets (including retirement and investment account assets), and new state taxes applying retroactively based on conduct, activities, or status before the tax's effective date. - Applies to new taxes enacted or taking effect on or after January 1, 2026. - States that other voter-approved measures on the same ballot are void if they conflict with this measure and it receives more affirmative votes. - LAO: if Prop. 42 gets more yes votes than Prop. 40, Prop. 40 could be stopped from becoming law even with majority support, because courts could find the two conflict. - LAO fiscal effect: could make it somewhat harder for the state to raise taxes and could reduce future revenues; timing and amount unclear. - Arguments for are signed by small business, veterans and senior groups, and the rebuttal to the opposing argument by firefighter, building trades, and peace officer leaders; arguments against are signed by SEIU-UHW. ### Google co-founder Brin spends more than $100M fighting California wealth tax - News Tribune · news · published 2026-08-14 · stance: neutral - A Los Angeles Times report (via TNS, in the Jefferson City News Tribune, August 14, 2026) that Sergey Brin had given $102 million in 2026 to Building a Better California, the group funding Propositions 41 and 42, which could block the Prop. 40 billionaire tax. It names other contributors and positions on both sides. - Brin had given $102 million to Building a Better California, including a latest donation of $20 million, per Secretary of State data. - Prop. 42 would prohibit new taxes on 'retirement holdings, individually-owned assets, and other forms of personal savings' and bar retroactive taxes on past earnings. - Both Props. 41 and 42 conflict with the billionaire tax and could block it, according to the LAO. - Other Building a Better California contributors include John Doerr, Michael Moritz, Patrick Collison, and Eric Schmidt, plus executives from DoorDash, the Wonderful Company, Affirm, and Ripple. ### Proposition 42 Analysis (November 3, 2026) - Legislative Analyst's Office · official analysis · published 2026-07-16 · stance: neutral - The Legislative Analyst's Office's own three-page analysis of Proposition 42 for the November 3, 2026 ballot, marked subject to court-ordered changes. It covers background on personal property taxes, the measure's proposal, its fiscal effects, and the yes/no statement. Unlike the printed guide's version, this file does not include the passage on interactions with Proposition 40. - Under Prop. 42, new taxes on ownership of financial assets or other personal property would not be allowed. - It limits when a ballot measure or the Legislature can raise any tax retroactively; example given: a tax on money earned two years ago. - Fiscal effect: possibility that tax revenues will be lower in the future; when and by how much is unclear. - Yes vote: the state could not establish new taxes on ownership of financial assets or other personal property. No vote: the state keeps that option. ### Proposition 42 Annotated Legal Text (GrowSF copy; unofficial) - GrowSF · other · published 2026-07-14 · stance: not_applicable - GrowSF's web reproduction of the full legal text of Proposition 42, the Retirement and Personal Savings Protection Act of 2026, with a link to the original Attorney General PDF. The text runs Sections 1 to 9: title, findings, purpose, a new Article VIII of the California Constitution (bans on taxing the ownership of personal property and on retroactive taxes, definitions, application to same-ballot initiatives), a conflicting-measures clause, severability, effective date, liberal construction, and legal defense. - New Article VIII, Sec. 1: no state law or constitutional provision enacted on or after January 1, 2026 may impose a tax on the ownership or control of 'retirement holdings, individually-owned assets, and other forms of personal savings,' held directly or indirectly. Taxes in effect, imposed, and first collected by December 31, 2025, and real property taxation, are unaffected. - Sec. 2 bans taxes that impose liability based on conduct, activities, or status before the tax's effective date, expressly including residency on a prior date; the Legislature may reach back up to 365 days only in a governor-declared disaster or fiscal emergency with revenue restricted to it. - Sec. 3 defines covered property as pensions, retirement accounts, mutual funds, and 'all personal property, whether tangible or intangible,' and borrows the Article XIII A definition of 'tax.' - Sec. 4 applies the article to statewide initiatives submitted on or after January 1, 2026, including those on the same ballot. - Act Section 5 deems any same-ballot initiative that taxes such property or imposes such retroactive liability to be in conflict; if Prop. 42 gets more votes, the other measure is null and void in its entirety. - Section 9 directs the Attorney General to appoint independent counsel, paid by a continuous General Fund appropriation, if the Governor and Attorney General refuse to defend the Act. - Reference: Original legal text (Attorney General initiative PDF, 25-0041A1) - Reference: GrowSF analysis of Prop 42 ### Initiative 25-0041 fiscal analysis - Legislative Analyst's Office · official analysis · published 2026-01-27 · stance: neutral - The Legislative Analyst's Office's pre-ballot fiscal analysis of the initiative as filed (A.G. File No. 25-0041, Amendment #1), dated January 27, 2026. It describes the proposal as barring new taxes on financial assets and other personal property and limiting retroactive taxes, and it finds a possibility of lower future revenue. - Reviewed under Elections Code Section 9005 for A.G. File No. 25-0041, Amendment #1. - Background: the state taxes owners of cars and trucks, and local governments tax owners of boats and business equipment; financial assets like stocks are not taxed. - Fiscal effect: the measure restricts the options of the state and local governments to raise taxes, which could reduce future tax revenues; timing and amount unclear. - Reference: LAO fiscal analysis (PDF version) ### Proposition 42 Arguments and Rebuttals - California Secretary of State · official analysis · published undated · stance: mixed - The official ballot arguments for and against Proposition 42, with rebuttals, as printed in the Secretary of State's voter guide. Supporters frame the measure as protecting retirement and savings from double taxation and retroactive taxes; the opponent, SEIU-UHW, frames it as a billionaire-funded measure designed to cancel Proposition 40, the billionaire tax. - Supporters say California's Constitution allows the Legislature to tax the value of personal property such as retirement funds and savings already taxed as income. - Supporters say the Legislature and special interests introduced six proposals in recent years to tax retirement and savings accounts. - Supporters' rebuttal says Prop. 42 prohibits new taxes on retirement and savings accounts 'including proposals on this year's ballot and in the future.' - Opponents say Prop. 42 was put on the ballot to undo Prop. 40 and name Google co-founder Sergey Brin as a main funder who has spent over $57 million on such measures. - Opponents say Prop. 40 applies only to billionaires and that claims that retirement savings are at risk are fear-mongering. ### Proposition 42 ballot measure contribution totals - California Secretary of State · campaign finance · published undated · stance: not_applicable - Secretary of State page listing committees formed to support or oppose Proposition 42 and their reported contributions through October 22, 2026: about $128.0 million for the single support committee and about $22.7 million across three opposition committees. - Support: Yes on 42 - Protect Retirement & Life Savings (ID 1488418) reported $127,977,037. - Opposition total: $22,741,302 across three committees, the largest sponsored by SEIU-UHW ($21,249,723). - Figures run through 10/22/2026; committees raising $1 million or more must report their top 10 contributors. - Reference: Cal-Access: Yes on 42 committee 1488418 - Reference: Cal-Access: SEIU-UHW Yes on 40 / No on 41 & 42 committee 1484470 - Reference: Cal-Access: Working Families Say No committee 1497412 - Reference: Cal-Access: Tax the Ultra-Rich Now committee 1495036 - Reference: FPPC top 10 contributors ### Text of Proposed Law: Proposition 42 (Official Voter Information Guide, Text of Proposed Laws, PDF pages 51–54) - California Secretary of State · official text · published undated · stance: not_applicable - The official text of Prop. 42. It adds Article VIII to the state constitution, barring any state law or constitutional provision enacted on or after January 1, 2026 from taxing the ownership or control of 'retirement holdings, individually owned assets, and other forms of personal savings', a term defined to include all tangible and intangible personal property. It also bars taxes that impose liability for conduct, activities, or status before their effective date, including taxes keyed to past residency. A competing-measure clause voids, in their entirety, same-ballot initiatives that would impose such taxes if Prop. 42 receives more votes. - Art. VIII, Sec. 1: no new state tax on ownership or control of the covered property, 'whether held directly or indirectly'; taxes in effect, imposed, and first collected by December 31, 2025 are grandfathered; real property taxation is untouched. - Art. VIII, Sec. 2: no tax that operates retroactively based on prior conduct, activities, or status, expressly including residency on a past date; sole exception is a legislative statute reaching back no more than 365 days after a governor-declared disaster or fiscal emergency, with revenue limited to that emergency. - Art. VIII, Sec. 3: the covered property is defined as pensions, retirement accounts, mutual funds, and 'all personal property, whether tangible or intangible', with an open-ended list (financial assets, business interests, digital assets, intellectual property, personal belongings). - Art. VIII, Sec. 4: the article applies to statewide initiatives submitted on or after January 1, 2026, including those on the same ballot. - Sec. 5: any same-ballot initiative imposing a covered tax is deemed in conflict; if Prop. 42 gets more yes votes, 'all the provisions of the other measure shall be null and void'. Sec. 5(b) revives Prop. 42 if a winning rival is later struck down. - Sec. 8 directs liberal construction; Sec. 9 requires independent counsel, funded by an uncapped continuous appropriation, if the Governor and Attorney General decline to defend it. ### Proposition Lab: Proposition 42 (California Decides) - Hoover Institution · third party analysis · published undated · stance: neutral - The Hoover Institution's California Decides 'Proposition Lab' analysis of Prop. 42. It summarizes the measure's two bans and its conflict clause, explains the existing constitutional authority to tax personal property (Article XIII, Sec. 2), and assesses that the change from the status quo is negligible because the state does not now tax intangible personal property. It argues the measure would signal to high-net-worth households that such taxes are off the table. - Hoover says Prop. 42 would effectively require voter approval before any new personal property tax and would bar taxes keyed to past residency or conduct, with a narrow 365-day emergency exception. - It calls the clause voiding Prop. 40 arguably the measure's most relevant element and says it is likely preferable to courts deciding which parts of Prop. 40 survive. - It notes Article XIII, Sec. 2 lets the Legislature tax tangible personal property and intangibles, while the Revenue and Taxation Code currently exempts all intangible assets. - It argues new personal property taxes would fall on the same high-income households that already pay most income tax, and cites Hoover fellows' research on migration responses. - It concludes California should address spending before seeking new revenue. - Reference: Initiative 25-0041A1 full text (Attorney General PDF) - Reference: LAO analysis of Initiative 25-0041 - Reference: Hoover Proposition Lab: Prop 40 ### Proposition 42: Prohibits New State Personal Property Taxes and Certain Retroactive State Taxes (Official Voter Information Guide) - California Secretary of State · voter guide · published undated · stance: neutral - The California Secretary of State's official voter guide overview page for Proposition 42. It gives the ballot summary (a ban on new state taxes on the ownership of personal property and on new state taxes that apply retroactively, and nullification of conflicting taxes enacted after January 1, 2026), the Legislative Analyst's one-line fiscal impact, the yes/no meaning, short pro and con arguments, and campaign contacts. - Ballot summary: prohibits any new state tax on the ownership of personal property (all things people own other than real estate) or that applies retroactively based on a taxpayer's past activities. - Summary says the measure nullifies taxes enacted after January 1, 2026 that conflict with it. - Fiscal impact: possibility that tax revenues will not go up as much in the future. - Listed supporters: CA Professional Firefighters; State Building & Construction Trades Council of CA; AMVETS Department of CA. Listed opponents: U.S. Senator Bernie Sanders; SEIU United Healthcare Workers West. - The opposing contact listed is SEIU-UHW, with a Yes on 40 email and website. - Reference: Yes on 42 campaign website - Reference: Opposition (Yes on 40) campaign website ## Suggested use Ask me neutral questions about this subject using the material above. Distinguish what the sources say from your own background knowledge, cite the source titles you rely on, and say when information may be out of date given the dates shown.