Proposition 41: Prohibits New State Taxes That Exclude Revenues from State Spending Limit

LAist's voter guide to Proposition 41 (by Erin Rode with CalMatters), published October 15 and updated October 19, 2026. It explains the audit and spending-limit provisions, the Gann limit, the interaction with Proposition 40, supporters and opponents, and the LAO's fiscal estimates.

• LAist says Prop. 41 would make it harder to raise taxes and 'directly undermines Prop. 40,' which exempts its revenue from the spending cap.
• LAist says both Props. 41 and 42 were backed by Building a Better California, funded heavily by Sergey Brin.
• LAist explains that when revenues exceed the Gann Limit for two consecutive years the state must refund the excess to taxpayers and education, which has happened twice.
• Fiscal summary repeats the LAO estimates: auditor costs in the low millions per year, a few hundred thousand dollars per initiative for voter guide printing, net effect unknown.

CalMatters' 2026 voter guide entry for Proposition 41. It describes the measure as making new special taxes harder to pass, explains that it would nullify Proposition 40 if it receives more votes, and summarizes the arguments, endorsements, and ballot text.

• CalMatters says the measure would require the state auditor to review any special tax proposal before it goes to voters, including whether the funded program could cut spending at least 10% annually.
• CalMatters says any new voter-approved special tax would count toward the spending limit, 'potentially triggering automatic refunds that reduce funding for other state programs.'
• If Prop. 41 gets more votes than Prop. 40, Prop. 40 is nullified even if it passes, according to the guide.
• The guide says the measure was placed on the ballot by opponents of the billionaire tax.

The voter guide pages (pp. 58-59) with the Attorney General's official title and summary of Proposition 41 and the Legislative Analyst's analysis. The LAO portion matches the LAO's web analysis; the Attorney General's summary adds that the measure voids conflicting same-ballot measures if it receives more votes.

• Attorney General summary: prohibits any new state taxes that exclude their revenues from the 1979 voter-approved spending limit.
• Attorney General summary: states that other voter-approved measures on the same ballot are void if they conflict with this measure and this measure receives more affirmative votes.
• Pre-election audits: the State Auditor would review each program that would receive funds from a new or increased special tax proposed by initiative, after supporters gather 25 percent of the needed signatures, before it is known whether the initiative qualifies.
• The audits must identify ways to reduce an audited program's annual costs by 10 percent; a summary would be printed in the voter guide if the initiative qualifies.
• Ongoing audits every four years of programs funded by special taxes created or increased by the Legislature or voters after January 1, 2026, paid from the new tax revenue.
• Under Prop. 41, the state 'might not be able to exclude new special tax spending from the limit.'
• If Prop. 41 receives more yes votes than Prop. 40, courts could find the two conflict and Prop. 40 could be stopped even with majority support.
• State Auditor costs likely in the low millions of dollars per year, growing over time; audit costs for taxes that fail or never reach the ballot would be paid from the General Fund.
• Audit summaries could add several pages to the voter guide, raising printing and mailing costs by a few hundred thousand dollars per qualified initiative.
• Net fiscal effect unknown.

The official ballot arguments and rebuttals for Proposition 41 from the state voter guide (pp. 60-61). Supporters frame the measure as transparency and accountability through State Auditor audits; opponents frame it as a billionaire-funded measure designed to undo the Proposition 40 billionaire tax.

• The argument in favor says Prop. 41 requires independent public audits of programs funded by proposed new taxes, before votes and on an ongoing basis, with results posted publicly and in the voter guide.
• Supporters say Prop. 41 'doesn't raise taxes' and requires all taxes to comply with the voter-approved spending limit, including refunds of excess revenue.
• The argument against says Prop. 41 is 'designed specifically to undo the California Billionaire Tax, Prop. 40' and names Sergey Brin as one of its main funders.
• Opponents say Prop. 41 'would cost the state time and money.'
• The supporters' rebuttal asks why 'a single, solitary Sacramento special interest' would oppose transparency.

The Secretary of State's 'Text of Proposed Laws' pages (voter guide pp. 147-150) containing the complete text of Proposition 41, the Improving Transparency, Effectiveness, and Efficiency in California Government Act of 2026. The extract also includes the end of Proposition 40's text and the start of Proposition 42's text. Prop. 41 adds Article XXIV ('Protecting Taxpayer Dollars') to the California Constitution.

• Article XXIV Section 1 requires the State Auditor to begin a pre-election financial and performance audit of each program that would receive money from a proposed special tax initiative once the initiative's certification is submitted under Elections Code 9034(a).
• The audit must address ten matters, including cost comparisons with analogous non-government programs and recommendations for budgetary savings of at least 10 percent annually; its executive summary is printed in the voter guide after the LAO analysis.
• Article XXIV Section 2 requires ongoing audits every four years of programs funded by special taxes enacted by the Legislature or a statewide initiative on or after January 1, 2026, with the Auditor reimbursed from the tax revenue.
• Article XXIV Section 3 bars any state tax enacted or taking effect on or after January 1, 2026 from being exempted or excluded from the Article XIII B spending limit, and bars the state from imposing, collecting, or enforcing such a tax.
• Article XXIV Section 5 applies the article to statewide initiatives submitted on or after January 1, 2026, including measures on the same ballot.
• Act Section 5 deems conflicting any same-ballot initiative that imposes different audit rules on special taxes or contains a tax excluded from the spending limit, and voids all of that measure's provisions if Prop. 41 receives more yes votes.
• The act also contains severability, liberal-construction, and legal-defense provisions, including a continuous General Fund appropriation for independent counsel if the Governor and Attorney General decline to defend it.

The Legislative Analyst's Office web version of its impartial analysis of Proposition 41 for the November 3, 2026 ballot: background on initiatives, special taxes, the State Auditor and the state appropriations limit; what the measure would do; its potential interaction with Proposition 40; and fiscal effects.

• Pre-election audits: the State Auditor would review each program that would receive funds from a new or increased special tax proposed by initiative, after supporters gather 25 percent of the needed signatures, before it is known whether the initiative qualifies.
• The audits must identify ways to reduce an audited program's annual costs by 10 percent; a summary would be printed in the voter guide if the initiative qualifies.
• Ongoing audits every four years of programs funded by special taxes created or increased by the Legislature or voters after January 1, 2026, paid from the new tax revenue.
• Under Prop. 41, the state 'might not be able to exclude new special tax spending from the limit.'
• If Prop. 41 receives more yes votes than Prop. 40, courts could find the two conflict and Prop. 40 could be stopped even with majority support.
• State Auditor costs likely in the low millions of dollars per year, growing over time; audit costs for taxes that fail or never reach the ballot would be paid from the General Fund.
• Audit summaries could add several pages to the voter guide, raising printing and mailing costs by a few hundred thousand dollars per qualified initiative.
• Net fiscal effect unknown.

The Secretary of State's official voter guide overview page for Proposition 41 gives the ballot title, the ballot summary, the fiscal-impact line, the listed supporters and opponents, the Legislative Analyst's yes/no statements, short pro and con argument excerpts, and contact information for each campaign.

• The ballot summary says the measure nullifies state taxes enacted after January 1, 2026 that exempt their revenues from the voter-approved state spending limit, and requires pre-election and recurring audits of programs funded by new special taxes.
• Fiscal impact line: the net fiscal effect is unknown because it depends on future decisions by voters, the Legislature, and other policymakers.
• The measure was placed on the ballot by petition signatures.
• Listed supporters: CA Society of Certified Public Accountants (CalCPAs), CalAsian Chamber of Commerce, California Taxpayers Association (CalTax). Listed opponents: US Senator Bernie Sanders and SEIU United Healthcare Workers West.
• The opposition contact listed is Suzanne Jimenez of SEIU-UHW, with a Yes on 40 email and website.

A legal memorandum dated August 20, 2026 by law professors Brian Galle (UC Berkeley), David Gamage (University of Missouri), and Darien Shanske (UC Davis) arguing that Propositions 41 and 42 are poorly drafted and could threaten existing and proposed California taxes, including Proposition 3, Medi-Cal provider taxes, and the Vehicle License Fee. The authors describe the measures as deceptive and designed to undermine Prop. 40.

• The authors argue Prop. 41's audit requirements could apply to Proposition 3 (making permanent the 1% surcharge on income above $1 million) and, through the conflicts clause, could void Prop. 3 entirely if Prop. 41 gets more votes.
• They argue the spending-limit prohibition could threaten the MCO tax (SB 125 of 2026 and Proposition 35's 2027 tax), the Hospital Quality Assurance Fee, and the skilled nursing facility fee.
• They note Prop. 41 does not define 'state tax' and does not address tax extensions.
• They argue the audits are 'slanted' toward cost-cutting and private-sector comparison, and duplicate existing State Auditor authority.
• They raise a single-subject concern for future revenue measures and for Props. 41 and 42 themselves.
• The memo says the authors are identifying legal risks, not claiming to predict how courts will rule.

The home page of the Yes on Proposition 41 campaign, presenting the measure as audits and accountability for California tax dollars and quoting coalition supporters.

• The campaign says Prop. 41 requires the independent State Auditor to audit programs funded by any new tax measure, with results posted publicly.
• The campaign says it requires all new taxes to comply with the voter-approved spending limit 'so that excess tax revenues get refunded to taxpayers.'
• The campaign says the measure is supported by more than a million Californians who helped qualify it.

Press release from the California Society of CPAs (CalCPA) announcing its positions on three November 2026 measures: oppose Proposition 40, support Proposition 41, and support Proposition 42. CalCPA says it signed the official ballot argument in favor of Prop. 41.

• CalCPA supports Prop. 41 because 'independent audits provide voters with objective, credible information to inform decisions about public spending.'
• CalCPA describes Prop. 41 as requiring pre-election and ongoing State Auditor audits of programs funded by new statewide special taxes and keeping new state taxes subject to the spending limit.
• CalCPA opposes Prop. 40, citing asset-valuation and administrative-feasibility concerns and its retroactive provisions.

The Secretary of State's page listing ballot-measure committees and reported contribution totals for and against Proposition 41, through October 22, 2026.

• Support: one committee, Yes on 41 - Californians for Transparency and Accountability, reported $58,376,446.
• Opposition: three committees reported $22,741,302 combined, most of it ($21,249,723) by the SEIU-UHW-sponsored Yes on 40 - Billionaire Tax Now - No on 41 & 42 committee.
• The opposition committees also campaign on Props. 3, 40 and 42, so their totals are not specific to Prop. 41.

Transcript of KQED's 'Prop Fest' podcast episode on Proposition 41, in which KQED political correspondent Marisa Lagos explains the measure's audit and spending-limit provisions, who supports and opposes it, how it interacts with Proposition 40, and campaign spending.

• Lagos says Props. 41 and 42 were written after the billionaire tax was already collecting signatures and were 'crafted really as an attempt to undercut that ballot measure.'
• Lagos describes three main provisions: ongoing audits of special-tax programs, new special taxes counting toward the spending limit, and a bar on enforcing taxes not subject to the limit.
• Lagos says opponents would argue the new audits are unnecessary because the Legislature can already request audits and the State Auditor regularly reviews programs.
• Lagos says supporters include the California Chamber of Commerce and the California Taxpayers Association, which she says question whether state money is properly spent.
• Opponents named: SEIU-UHW, the state Democratic Party, and the California Federation of Labor Unions.
• Lagos says Yes on 41 had raised more than $46 million, mostly from Building a Better California, with little organized spending on the No side.
• Lagos says she expects court challenges regardless of outcome.

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KPBS republication (October 1, updated October 20, 2026) of the CalMatters explainer on Proposition 41. The content matches the CalMatters guide: what the measure does, supporters' and opponents' arguments, endorsements, and ballot text.

• Describes the pre-election audit, the 10% savings assessment, and new special taxes counting toward the spending limit.
• States that if Prop. 41 gets more votes than Prop. 40, Prop. 40 is nullified even if it also passes.
• Lists supporter endorsements (Reform California, Sergey Brin, Stewart Resnick) and opponent endorsements (SEIU-UHW, California Democratic Party).

The Santa Barbara Independent's republication of the CalMatters article explaining how Proposition 40 could be defeated by Propositions 41 or 42, what each does, and who funds each side. The text matches the CalMatters original.

• PPIC polling cited in the article shows slim majorities of likely voters supporting Prop. 40 and also Props. 41 and 42.
• The article says that if Prop. 40 captures more votes than both 41 and 42, the wealth tax takes effect, "voiding the countermeasures"; if either 41 or 42 outpolls Prop. 40, the billionaire tax does not take effect.
• The article says Prop. 41's 'real target is Prop. 40' because the billionaire tax is not written to comply with the spending limit.
• If voters approve a tax, some revenue would pay for the audit; if a proposal fails, the state pays.
• Building a Better California, bankrolled by Sergey Brin and other billionaires, is described as the primary backer of Props. 41 and 42, raising $131 million for them.

CalMatters news article by health reporter Kristen Hwang explaining how Proposition 40 (the billionaire tax) could be defeated by Propositions 41 or 42 even if it passes, what each measure does, and who is funding each side.

• PPIC polling cited in the article shows slim majorities of likely voters supporting Prop. 40 and also Props. 41 and 42.
• The article says that if Prop. 40 captures more votes than both 41 and 42, the wealth tax takes effect, "voiding the countermeasures"; if either 41 or 42 outpolls Prop. 40, the billionaire tax does not take effect.
• The article says Prop. 41's 'real target is Prop. 40' because the billionaire tax is not written to comply with the spending limit.
• If voters approve a tax, some revenue would pay for the audit; if a proposal fails, the state pays.
• Building a Better California, bankrolled by Sergey Brin and other billionaires, is described as the primary backer of Props. 41 and 42, raising $131 million for them.

A Los Angeles Times article by Queenie Wong, republished by CPA Practice Advisor, reporting 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 Proposition 40 billionaire tax.

• Brin's latest donation was $20 million, bringing his 2026 total to Building a Better California to $102 million, per Secretary of State data.
• Building a Better California is bankrolling Props. 41 and 42, which supporters of the billionaire tax say are meant to 'trick voters.'
• Other named contributors to the group include John Doerr, Michael Moritz, and Patrick Collison, plus executives of DoorDash, the Wonderful Company, Affirm, Ripple, and former Google CEO Eric Schmidt.
• The article says that, per the LAO, both measures conflict with the billionaire tax and could block it.

The amended initiative text (A.G. No. 25-0040, Amendment 1) as filed with the Attorney General on January 12, 2026 by proponent Kurt R. Oneto, with a cover letter requesting a title and summary. The text appears to match the version printed in the voter guide as Proposition 41.

• Cover letter dated January 12, 2026 from proponent Kurt R. Oneto to Attorney General Rob Bonta, submitting amended language under Elections Code 9002(b).
• The enclosed text carries the same title, findings, Article XXIV provisions (pre-election audits, ongoing audits, spending-limit prohibition, definitions, applicability), conflicting-measures clause, severability, effective date, liberal construction, and legal defense sections as the ballot version.
• The stored text is an OCR scan, with some character errors (for example 'SEC. S.' for 'SEC. 5.').