California Voters to Decide Permanence of High-Earner Income Tax in November 2026

California voters are set to cast their ballots in November 2026 on Proposition 3, a measure that seeks to make permanent the existing marginal income tax rates on the state's highest earners. This initiative, placed on the ballot by the California Teachers Association, aims to remove the 2031 expiration date from tax rates that have been in effect for over a decade, thereby maintaining billions of dollars in annual state revenue earmarked primarily for public education and healthcare.

The tax in question was initially enacted by voters in 2012 as Proposition 30 and subsequently renewed in 2016 through Proposition 55. It established a tiered system for high-income individuals, with marginal rates ranging from 10.3% to 12.3%. Specifically, individuals earning over $360,000 are subject to a 10.3% rate, while those with incomes exceeding $721,000 face the top rate of 12.3%, with graduated rates applied to incomes in between. These income thresholds are adjusted annually for inflation; for instance, the California Secretary of State's official ballot text notes the threshold for individuals earning over $371,000 (adjusted annually for inflation) as the starting point for these higher rates.

Should Proposition 3 pass, it would not impose new taxes or alter existing income tax rates. Instead, it would simply eliminate the sunset clause on these current rates, which are otherwise scheduled to expire after 2030. According to the Legislative Analyst's Office, this measure would maintain an estimated $5 billion to $15 billion in annual state income tax revenue. This substantial funding typically represents about 3% to 10% of overall K-12 spending, with 89% of the money allocated to K-12 public schools and 11% directed to community colleges. Any excess revenue is intended for public healthcare programs.

Supporters of Proposition 3 argue that making these rates permanent is crucial to prevent devastating cuts to essential state services. They contend that allowing the tax to expire would lead to significant reductions in funding for public education, healthcare resources, and various programs that Californians rely on daily, impacting the state's entire General Fund budget. Organizations endorsing the measure include the California Teachers Association, CA School Nurses Organization, California State PTA, and Planned Parenthood Affiliates of CA.

Conversely, opponents argue that California already bears some of the nation's highest income, sales, and gas taxes, coupled with a high cost of living. They claim that making temporary taxes permanent rewards state government for what they perceive as wasteful spending on failed programs, rather than prioritizing voters' needs. Opposing groups include the California Taxpayers Association, Family Business Association of California, and California Hispanic Chambers of Commerce. They advocate for fixing state spending priorities before locking in higher tax rates indefinitely.

The measure fundamentally aims to preserve a key element of progressivity within California's revenue structure, ensuring that households with higher incomes continue to contribute a larger share to the state's budget. This funding, as the California Budget & Policy Center notes, supports critical investments that improve the quality of life for residents by helping meet the TK-14 constitutional funding guarantee and freeing up revenue for other vital programs and services, consistent with how these funds have been utilized since 2012.

For many small and mid-sized business owners in California, the prospect of Proposition 3 making these income tax rates permanent introduces a critical element of certainty, albeit a fixed higher cost, into their long-term financial planning. We've observed that clarity around future tax obligations, even if higher, can enable more strategic capital allocation and investment decisions, but it also necessitates meticulous tax planning to optimize after-tax income. Business owners operating as S-corps, partnerships, or sole proprietorships, whose business income flows directly to their personal tax returns, will find their financial outlook directly impacted by this measure. Navigating these complexities requires a proactive approach to tax strategy and financial management, an area where C&S Finance Group LLC specializes in providing expert tax preparation and compliance services. We help clients understand the nuances of state tax legislation and develop robust plans to manage their tax liabilities effectively. To explore how this permanent tax rate could affect your business and personal finances, contact C&S Finance Group LLC at csfinancegroup.com to get started.

As the November 2026 election approaches, businesses and high-income individuals in California will be closely watching the discourse surrounding Proposition 3. The outcome will not only shape the state's fiscal landscape for decades to come but also influence long-term financial planning and investment strategies across the state.