California is intensifying its efforts to combat tax evasion by wealthy individuals exploiting the “Montana Loophole” to avoid state taxes and registration fees on luxury vehicles. This action comes as the state faces significant budget deficits and concerns about an outflow of high-net-worth residents.

What is the 'Montana Loophole'?

The “Montana Loophole” involves California residents purchasing and registering high-end vehicles – including brands like McLaren, Porsche, and Ferrari – through Montana-based limited liability companies (LLCs). Montana’s favorable tax laws, which include no statewide sales tax and lower registration fees, make it appealing for minimizing tax obligations.

However, these vehicles are frequently used primarily within California, effectively bypassing the state’s tax regulations. This practice has resulted in substantial revenue losses for California, prompting the current crackdown.

State Investigations and Audits

The California Department of Tax and Fee Administration (CDTFA) and the Department of Motor Vehicles (DMV) have launched a series of investigations and audits. These target both vehicle buyers and dealerships involved in the scheme.

To date, over 400 investigations have been opened, and nearly 300 dealership audits have begun. The state aims to recover millions of dollars in lost tax revenue. Since 2023, approximately 2,500 sales through nearly 500 California dealerships, claiming Montana usage, have cost the state over $10 million annually.

Legal Action and Penalties

California Attorney General Rob Bonta’s office is pursuing legal action against individuals involved in tax evasion. Recently, charges were filed against 14 Bay Area residents for allegedly evading over $1.8 million in state taxes on luxury vehicles valued at over $20 million. None of the vehicles were used outside of California.

CDTFA Director Trista Gonzalez emphasized the department’s commitment to closing the loophole and protecting state revenue. She stated the department is collaborating with state partners to identify and address questionable transactions.

Under California law, residents must pay sales tax on vehicles not first used and kept outside the state for at least 12 months. Those attempting to evade these obligations face penalties of up to 50% of the tax due.

Warning to Auto Dealers

In late 2024, the CDTFA issued a warning letter to California auto dealers, cautioning them about potential liability for facilitating tax evasion. Dealers could be held accountable for insufficient shipping documentation or failure to prove vehicles were shipped out of state.

Financial Pressures and Budget Deficits

This intensified enforcement comes as California faces a projected $18 billion deficit in 2026 and 2027. There are reports of wealthy individuals leaving the state due to concerns about a potential wealth tax – a proposed 5% tax on residents with assets exceeding $1 billion.

The crackdown on the Montana Loophole is part of a broader strategy to maintain revenue streams and ensure fairness within the tax system, addressing budget shortfalls and maintaining essential services.