Business Groups Ready Lawsuits Over Prop 40 Fees
A coalition of business groups is preparing immediate lawsuits to block Prop 40's new corporate fees just days after voters approved the measure.
The ink is barely dry on Tuesday’s ballots, but the courtroom battle over Proposition 40 has already begun.
A coalition of major business advocacy groups, led by the State Chamber of Commerce and the Taxpayers Alliance, is preparing to file multiple lawsuits this week. Their goal is simple: block the newly passed corporate fees before they can ever take effect.
Proposition 40, which narrowly won approval from voters, aims to raise money for climate resiliency and public infrastructure. It does this by levying a new annual surcharge on corporations pulling in more than $15 million in gross in-state revenue. Proponents celebrated the win as a major victory for public funding. But businesses call it an unconstitutional cash grab.
“We are ready to challenge this in court immediately,” said Marcus Vance, lead counsel for the newly formed Coalition for Fair Taxation. “Voters were misled about what this measure actually does. Under our state constitution, this isn’t a fee. It is a tax. And it didn’t meet the legal requirements to be on the ballot in this form.”
The Fee vs. Tax Debate
The core of the legal argument centers on the distinction between a regulatory fee and a tax. Under state law, a fee must directly fund the regulation of the specific industry paying it. A tax, on the other hand, goes into broader public funds.

Opponents of Prop 40 argue that because the revenue from these new corporate assessments goes toward general infrastructure projects, it should be classified as a tax. In this state, new taxes require a two-thirds majority in the legislature, or specific ballot wording that Prop 40 allegedly bypassed.
Lawyers representing the business coalition plan to file their initial complaint in the county superior court by Thursday morning. They are seeking an immediate temporary restraining order. If granted, this would pause any implementation of the new fee schedule while the broader constitutional questions wind their way through the legal system.
Impact on Mid-Sized Businesses
The business coalition argues that the measure will impact more than just massive multinational corporations. They point out that a $15 million gross revenue threshold catches many mid-sized, family-owned enterprises that operate on razor-thin profit margins.
“We are talking about logistics companies, regional food distributors, and independent manufacturing plants,” Vance said. “These aren’t faceless tech giants. These are employers with deep roots in our communities.”
“This is about protecting the state’s economic climate,” added Sarah Jenkins, an analyst with the Retail Merchants Association. “If you hit businesses with these massive, arbitrary overhead costs, they don’t just absorb them. They pass them down. Consumers will see the impact on store shelves next year.”

Supporters Ready to Defend the Law
Supporters of the measure, however, say the legal threats are just a delay tactic by wealthy corporations. They argue that big companies have dodged their civic responsibilities for too long while exploiting local infrastructure.
“They spent millions trying to defeat this at the ballot box, and they lost,” said Elena Gomez, co-director of the Clean Future Initiative, the main group behind Prop 40. “Now they want to use expensive lawyers to override the will of the people. We are confident the courts will uphold the measure. The fee is structured legally, and it is designed to make big polluters pay their fair share.”
The state attorney general’s office has already stated it is prepared to vigorously defend the law, emphasizing that voters made their choice clear at the ballot box.
If the lawsuits succeed in securing an injunction, it could stall millions of dollars in planned infrastructure spending. The state budget office had already begun earmarking the projected $1.2 billion in annual revenue for regional flood control and wildfire prevention projects.
The coalition’s legal strategy will focus on three key points:
- The misclassification of the levy as a fee rather than a tax.
- The lack of a direct nexus between the businesses being charged and the infrastructure projects being funded.
- The potential violation of equal protection clauses by targeting specific corporate structures.
Legal experts suggest this case could go all the way to the State Supreme Court. For local business owners, the uncertainty is the hardest part. Many are unsure whether to adjust their 2024 budgets to account for the new fees or gamble on the court blocking the law. For now, both sides are digging in.