California authorities have launched a sweeping investigation targeting wealthy residents who registered exotic vehicles in Montana to avoid paying state sales taxes, a practice now drawing sharp scrutiny from regulators.
The strategy, often called the “Montana registration loophole,” allows buyers to sidestep California’s high auto sales tax—ranging from 7.75% to over 10% depending on the county—by registering vehicles under Montana-based limited liability companies (LLCs). With no statewide sales tax in Montana, the savings on multimillion-dollar hypercars can reach hundreds of thousands of dollars.
Officials allege the scheme has become a multimillion-dollar tax evasion problem. Prosecutors recently charged 14 individuals for allegedly purchasing and registering luxury vehicles through Montana LLCs while storing, driving, and enjoying them in California. The case reportedly involves more than $20 million in exotic car purchases, with approximately $1.8 million in unpaid taxes.
The roster of vehicles cited in the investigation reads like an automotive fantasy: a McLaren Elva, Porsche 918 Spyder, Ferrari F12tdf, and other high-end models. Prosecutors say these cars were never intended to see Montana roads, instead residing in California garages and appearing at local events and coastal highways.
The alleged loophole worked by establishing a Montana LLC, purchasing the vehicle under the company’s name, and registering it in the state. This technically avoided California’s sales tax at the point of purchase. However, California law requires residents to pay taxes on vehicles primarily located or operated within the state. Investigators say falsified paperwork, including shipping documents and delivery records, helped maintain the illusion that the cars were out of state.
Officials warn that the issue is not isolated. Estimates suggest that more than 2,500 vehicle sales since 2023 may have used similar arrangements, involving hundreds of dealerships across the country. California’s annual losses from the loophole are projected to exceed $10 million.
For tax authorities, the crackdown sends a clear message: the era of using Montana registrations to dodge California taxes may be ending. For automotive enthusiasts, the drama highlights an unusual intersection of supercar culture and tax law, where compliance has become as critical as horsepower.
