California Senate Proposes New Tax on Large Firms Whose Employees Use Medi-Cal

SACRAMENTO — California Senate leaders in mid-April unveiled a budget proposal that includes a new tax targeting the state’s largest corporations whose employees rely on Medi-Cal, the state’s health insurance program for low-income residents. The plan, part of a budget framework titled “Foundation for the Future,” would establish a “Fair Share Contribution” intended to shift healthcare costs from taxpayers back to major employers. The proposal aims to generate between $5 billion and $8 billion annually to help close California's structural budget deficit and offset rising healthcare expenditures. According to the office of Senate President pro Tempore Monique Limón, the new contribution requirement would apply to the top 1% to 2% of corporations in the state that do not provide healthcare coverage for their employees, many of whom earn wages low enough to qualify for state-subsidized care. Proponents note that 42% of all Medi-Cal enrollees are full-time workers. While the “Fair Share Contribution” is aimed at the top 1-2% of corporations, the ripple effects could be felt by many mid-sized businesses in their supply chains and competitive landscapes. In our experience, such broadly defined tax proposals often hide significant complexities. Key questions remain unanswered: How will the state define the “largest” corporations—by revenue, employee count, or another metric? How will it account for franchise models or the extensive use of independent contractors? This uncertainty makes long-term financial planning incredibly difficult for any company operating near the potential threshold. Navigating the ambiguity of new state and local tax legislation is a critical component of financial risk management. We help clients model the potential impacts of these proposals and develop proactive strategies to mitigate exposure before they become law. For guidance on how emerging tax policies could affect your business, leaders can consult with the team at C&S Finance Group LLC at csfinancegroup.com. The Senate’s proposal formalizes an idea previously advanced by Assembly Health Committee Chair Mia Bonta, D-Alameda. Bonta had introduced legislation to create a special tax on corporations with a large number of employees enrolled in state-funded health programs. While her initial concept floated revenue figures as high as $17 billion a year, she indicated the scale was flexible. Bonta has previously named companies like McDonald’s and Walmart as examples of corporations whose workers often rely on public health benefits, effectively receiving a state subsidy. This legislative push comes as California grapples with significant financial pressures. Lawmakers face a substantial budget deficit, prompting a search for new revenue streams to avoid deep cuts to social services. The proposal is one of several revenue-focused ideas circulating in the Capitol, including a separate effort by labor groups to place a one-time billionaire’s tax on the November ballot to cover health funding gaps. The urgency is compounded by potential federal policy changes, such as the law known as H.R.1 signed last year, which could strip billions in federal Medi-Cal funding from the state, according to a report from San Jose Inside. In a statement, Senator Caroline Menjivar, Chair of the Senate Budget Subcommittee on Health and Human Services, framed the proposal as an issue of corporate accountability. “We cannot simply cut our way out of this problem which is why I’m proud to have our plan proposed offsetting Medi-Cal state costs by holding very large employers accountable in paying their fair share,” Menjivar said. “When 42% of the people on Medi-Cal are working, we know something needs to change.” If enacted, the tax would present significant operational and compliance challenges for affected businesses. The state would need to establish a robust mechanism for tracking which employees from which companies are enrolled in Medi-Cal, a complex data-matching task. Large employers, defined under the Affordable Care Act as those with 50 or more full-time equivalent employees, already face federal reporting requirements regarding health coverage through IRS Forms 1094-C and 1095-C. A new state-level requirement would add another layer of administrative burden. Furthermore, the definition of an “employee” could become a key point of contention. California labor law provides a broad definition that typically includes both W-2 employees and, in many cases, 1099 independent contractors. How the state would classify workers for the purpose of this tax could dramatically alter a company’s liability and potentially incentivize shifts in workforce composition. This punitive approach for large employers stands in contrast to existing state and federal policies designed to encourage smaller businesses to offer insurance, such as the small business health insurance tax credit, which offers a partial credit on premiums for firms with fewer than 10 employees and very low average wages. The proposal is now part of the state’s annual budget negotiation process. The Senate’s framework will need to be reconciled with the budget proposed by the Assembly and Governor Gavin Newsom. The final details, including the precise definition of a “large corporation” and the mechanics of the contribution calculation, will be determined in the coming weeks of legislative debate.