A half-cent addition to the sales tax rate across Los Angeles County took effect Thursday, lifting the combined countywide figure from 9.75% to 10.25% and prompting a legal challenge the same day. The lawsuit was filed by the Libertarian Party of LA County — an organisation that holds positions favouring reduced taxation and a narrower scope of government — one day before the levy took effect.
Under the rate adjustment, an additional 50 cents is owed for every $100 in transactions, rising to $5 on purchases of $1,000. Under the revised county tax structure, households spending $100,000 annually would absorb roughly $500 in added costs, while buyers of a $40,000 vehicle would see the county's share of that transaction increase by around $200.
Prepared meals served at restaurants fall under the tax, whereas staple groceries and prescription medications are exempt.
Measure ER cleared the threshold in June by a margin of roughly 25,770 ballots — 1,013,747 in favour against 987,977 opposed, translating to a split of 50.64% to 49.36%. A gap of approximately 25,800 votes separated the two sides. With a total population of around 9.6 million, roughly one in ten LA County residents effectively determined the final result.
Projections put the levy's total draw at around $5 billion by its 2031 sunset date, with consumers absorbing an estimated $1 billion of that burden annually. The measure reached voters after the LA County Board of Supervisors, whose membership at the time held a Democratic majority, voted to place it on the ballot. The board's annual pay stands at $244,727 per member, and the vote to put the tax before voters drew support from every supervisor except Kathryn Barger, a Republican.
Supervisors Mitchell and Solis jointly advanced the initiative. Facing a hiring freeze, overtime cuts, and a drawdown of emergency reserves, Mitchell described the move as a measure of last resort. Barger argued there was no assurance the funds would be directed toward their stated purposes, and pointed to the area's residents as already carrying one of the heavier tax burdens nationally.
Adan Chao, who chairs the Los Angeles Taxpayers' Association, contended that a $10 million campaign backed by the SEIU had misled voters. He described the measure as having been framed around medical purposes, though in his view it functions as a wide-ranging general tax — one he argued would remain in place indefinitely and add anywhere from a few hundred dollars to around $1,000 annually to household costs. Chao further characterised the measure as a permanent levy rather than a time-limited health surcharge, and argued that levies of this kind tend to broaden over time rather than remain targeted, and that once introduced, they rarely disappear.
Supporters promoted Measure ER as a financial resource for healthcare facilities facing Medi-Cal funding reductions, with ballot materials noting that the county's four public hospitals faced a potential threat to their continued operation. The measure places no financial obligation on the county with respect to health care expenditure. Funds collected flow into the general budget pool, where board members retain discretion over allocation through future budget processes.
Because no formal designation directs the revenue toward health care, the measure required only a simple majority for approval rather than the higher two-thirds threshold. Some opponents have argued that the procedure was structured in a way that lowered the bar for passage, allowing the measure to clear without reaching the two-thirds margin typically required for dedicated tax levies.
Organisations positioned to receive a share of the funding provided the bulk of the financial backing for the campaign. Funding records show that St. John's Community Health, a nonprofit operating a network of clinics, contributed no less than $4 million to the effort. A $200,000 donation from SEIU Local 721 — the union representing county employees — came alongside the organisation's position that the tax would help preserve jobs held by a large portion of its membership. Two additional donations rounded out the funding picture: the California Community Foundation contributed $200,000, and the county's physicians' association added $50,000.
Meyers, who is seeking the Republican nomination for California's 30th Congressional District — a seat covering portions of Los Angeles County including Burbank, Glendale, and the Hollywood Hills — contended that Measure ER was promoted to voters as a funding commitment tied directly to emergency rooms and emergency medical technicians, whereas the revenue it generates flows into the county's general fund rather than to those services.
In jurisdictions that already carried above-average sales tax burdens, the addition of Measure ER pushed combined rates higher still. Minimum rates of 11% are now in place across both West Hollywood and Pasadena, with Santa Monica sitting slightly above that threshold at 11.25%. By comparison, Miami's rate holds at 7%, Austin and Houston each register 8.25%, and New York City's figure reaches close to 9%.
Nikita Levin, a 27-year-old who was at the Third Street Promenade in Santa Monica on Thursday, told a reporter she wanted a clearer picture of how the tax revenue gets allocated. Opponents of the levy — among them taxpayer advocacy organisations and a portion of Democratic lawmakers — have pointed to its proportionally heavier burden on households with modest earnings, where a flat charge absorbs a greater share of take-home pay.
The rate adjustment marks the second time in under two years that local sales levies in LA County have been pushed upward. A half-cent levy dedicated to addressing homelessness, passed by voters in 2024, has drawn objections from a number of smaller municipalities, which contend that their contributions to the fund outstrip the resources flowing back to them.
The levy that took effect Thursday will register at checkout points for residents throughout the county. Money collected flows into the general fund, where allocation decisions rest with the Board of Supervisors through future budget processes, while the legal challenge filed by the Libertarian Party aims to void the tax altogether.
