The Van Guide
Registration · Montana

The Montana LLC Registration Strategy: How It Works, What It Costs, and Why It's Riskier Than You Think

The Montana LLC strategy avoids sales tax but carries real legal risks in your home state. How it works, what enforcement looks like, and who it fits.

The Van Guide

Montana has no sales tax. No general sales tax, no use tax on vehicles, and no state vehicle inspection requirement. These three facts, combined with Montana’s willingness to register vehicles owned by LLCs formed in the state, have created an industry: companies that help out-of-state RV and van owners form a Montana LLC, register their vehicle to that LLC, and avoid paying their home state’s sales tax on the purchase.

The strategy is legal in Montana. The question is whether it is legal in the state where you actually live and use the vehicle. For a growing number of states, the answer is no — and enforcement is getting more aggressive. This guide covers how the Montana LLC registration strategy works, what it actually costs, which states are cracking down, and what the insurance and legal consequences look like when it goes wrong. For an overview of how standard van-to-RV retitling works across all 50 states, see the registration overview.

How the Montana LLC Strategy Works

The mechanics are straightforward:

  1. Form an LLC in Montana. This is done through a registered agent — a Montana-based company that serves as the LLC’s in-state contact. The LLC is a legal entity that exists on paper in Montana.

  2. Title and register the vehicle to the LLC. The vehicle is titled in Montana in the LLC’s name. Montana charges no sales tax on the transaction and no use tax on the vehicle.

  3. Get Montana plates. The vehicle receives Montana license plates and a Montana registration.

  4. Drive the vehicle in your home state. The owner lives in, say, California or Texas, but the vehicle wears Montana plates and is registered to a Montana LLC.

The appeal is obvious. Sales tax on a $150,000 van conversion in California is roughly $11,250 (7.25% state rate before local additions). In Texas, it’s $9,375 (6.25%). In Florida, $9,000 (6%). Montana: $0. The savings can be substantial, especially on expensive vehicles.

A handful of Montana companies specialize in this service. They handle the LLC formation, registered agent duties, vehicle titling, and annual registration renewal. The setup typically costs $1,000 to $2,000, plus annual registered agent fees of $100 to $300 and Montana’s annual registration fee.

What It Actually Costs

Montana’s filing fees are public. The Montana Secretary of State charges $35 to form an LLC and $20 per year for the annual report. Vehicle registration fees are set by Montana Code Annotated § 61-3-321 and vary by vehicle age — newer vehicles pay more, and vehicles over 12 years old pay a flat $28. Motorhomes over 11 years old can be permanently registered.

ItemTypical Cost
Montana LLC formation (SOS filing)$35
Annual report (SOS)$20/year
Registered agent service$49–$200/year
Montana vehicle registration (annual)$28–$217+ (varies by age)
Montana title fee$12
Setup service (all-in, through a Montana LLC company)$350–$2,500
Total first year (DIY)$150–$500
Total first year (through a service)$500–$2,500
Annual renewal$100–$400

Montana also charges a luxury vehicle fee of $825 for vehicles with an MSRP above $150,000, enacted through HB 650.

Against a $10,000+ sales tax bill, the math looks compelling. On a $200,000 van conversion in California, the avoided sales tax could exceed $15,000. The question is whether those savings survive contact with your home state’s tax enforcement division.

Every state that charges sales tax also has laws requiring vehicles to be registered in the state where they are primarily garaged, housed, or used. These are not obscure statutes — they are the basic registration rules that apply to every vehicle in the state.

The Montana LLC strategy works by creating a legal fiction: the vehicle is “owned” by a Montana LLC and registered in Montana, even though the vehicle lives in another state and is used by a person who lives in another state. Whether this fiction holds up depends on the enforcement posture of the state where the owner actually lives.

The general rule in most states: If you live in the state and the vehicle is kept in the state for more than a threshold period (typically 30 to 90 days), you owe registration fees and, in many states, sales or use tax — regardless of where the vehicle is titled.

Which States Are Enforcing

Enforcement has escalated sharply since 2023. Several states have moved from passive use-tax statutes to active investigation programs targeting Montana LLC registrations specifically.

California — criminal charges and automated detection. California is the most aggressive enforcer in the country. According to CDTFA News Release NR 26-02 (March 2026), the state has identified close to 500 California dealers involved in more than 2,500 suspicious sales since 2023, launched more than 400 investigations into high-end vehicle purchasers, and initiated nearly 300 audits of dealers. The DMV has separately pursued 81 criminal investigations, identifying 601 fraudulently registered vehicles and recovering $2.3 million. California uses automated license plate readers (ALPRs), insurance records, and toll data to identify Montana-plated vehicles regularly present in California. Under California Vehicle Code § 4000.4, vehicles garaged in California for more than 20 days during the first 12 months of ownership must be registered in California. Penalties include back taxes, interest, and a 50% penalty on the unpaid tax. A proposed bill, SB 1406, would pierce the LLC veil for tax purposes, making individual LLC members directly liable for the use tax.

Utah — systematic enforcement program. Utah signed SB 52 into law on March 25, 2025, creating a data-sharing arrangement between the Utah Tax Commission and the state’s Uninsured Motorist Identification Database. The program identified approximately 16,000 vehicles and 4,800 boats registered out of state but operated primarily in Utah, representing an estimated $120 million or more in lost revenue. Utah imposes a 100% penalty — doubling the tax bill — on vehicles found to be evading use tax through out-of-state registration.

Tennessee — high-profile criminal prosecution. In late 2025, YouTuber Cody Detwiler (WhistlinDiesel) was charged with felony tax evasion for reportedly registering a high-value vehicle through a Montana LLC while residing in Tennessee. The case drew national media attention and signaled that enforcement is not limited to California and Utah.

Georgia. O.C.G.A. § 40-2-20 requires vehicles primarily used in Georgia to be registered in Georgia within 30 days. Penalties for non-compliance include fines that can accrue daily. Georgia’s enforcement has focused on general registration compliance rather than LLC-specific targeting, but the statute applies directly to Montana LLC vehicles garaged in the state.

Illinois. Illinois tax courts have ruled against Montana LLC registrations in multiple cases (2010, 2013), with courts calling the LLC structures “a sham.” Recent legislation allows the state to “look through” LLC structures to the individual member for tax purposes.

Massachusetts. The Massachusetts Appellate Tax Board ruled in 2017 that a Montana LLC used for vehicle registration was “a mere shell organization with no economic substance.”

Texas. Texas charges a 6.25% motor vehicle sales tax and has use-tax provisions that apply when a vehicle purchased in a no-sales-tax state is brought into Texas. No specific Montana LLC enforcement task force has been identified, but the statutory framework exists.

Florida. Florida Statute § 320.02 requires Florida residents to register their vehicles in Florida. Florida charges a 6% sales tax plus county surtax. No active enforcement task force has been identified as of 2025, but the legal exposure exists.

The trend across states is toward more detection, more prosecution, and higher penalties — not less.

An estimated 600,000 or more vehicles are registered in Montana but operated primarily in other states, according to state-by-state registration and licensing data. Montana’s vehicle-to-driver ratio is the highest in the nation, a statistical artifact driven largely by out-of-state LLC registrations.

The Insurance Problem

The Montana LLC strategy creates an insurance complication that many owners do not consider until something goes wrong.

Garaging address mismatch. Insurance policies are priced based on where the vehicle is garaged. If the vehicle is registered in Montana but garaged in California, the insurer needs to know the actual garaging address — not the Montana LLC’s registered agent address. Misrepresenting the garaging address on an insurance application is a material misrepresentation that can void the policy at claim time.

Registration-insurance mismatch. Some states require insurance policies to match the vehicle’s registration state. If the vehicle is registered in Montana but insured with a California garaging address, this creates a documentation conflict that can cause problems at renewal, at claim time, or during a traffic stop.

LLC ownership complication. The vehicle is owned by the LLC, not by the individual driver. Some insurance carriers treat LLC-owned vehicles differently from individually-owned vehicles. Commercial auto underwriting may apply, or the carrier may require a specific LLC endorsement. Roamly, Progressive, and Good Sam all underwrite to the individual driver’s profile, but the LLC ownership adds a step to the quoting and claims process.

Claim investigation. In a total loss or large claim, the carrier investigates. If the investigation reveals that the vehicle was registered in Montana to avoid sales tax in the owner’s home state, and the owner misrepresented the garaging address, the carrier has grounds to deny the claim for material misrepresentation. This is the worst-case scenario: the owner loses the vehicle and the claim payout.

Who the Montana LLC Strategy Actually Works For

The strategy has legitimate uses. Not everyone using a Montana LLC is avoiding taxes:

Full-time travelers with no home state. Someone who sold their house, lives in the van full-time, and has no fixed address in any state may have a legitimate argument for Montana registration. Montana does not require residency to form an LLC or register a vehicle. If the owner genuinely does not reside in any other state, the “garaged in another state” argument does not apply. This is the strongest use case.

Montana residents. If you live in Montana, registering your vehicle in Montana is the default. No LLC needed.

Vehicles stored in Montana. If the vehicle is primarily stored in Montana — at a seasonal property, at a storage facility — Montana registration is appropriate.

Commercial fleet vehicles with legitimate Montana operations. Businesses with actual Montana operations may have legitimate reasons to register vehicles there.

Who It Doesn’t Work For

Anyone who lives in a state with sales tax and keeps the van at home. If you live in Texas and the van sleeps in your driveway in Houston, a Montana LLC does not change the fact that the vehicle is garaged in Texas and subject to Texas registration and use-tax requirements. The LLC is a legal structure; it does not move the vehicle.

Weekend and vacation users who have a home base. If the van lives at your house between trips, your home state considers the vehicle garaged there. Montana plates do not change that.

The Alternative: Just Register in Your Home State

For most van conversion owners, the straightforward path is:

  1. Buy the van.
  2. Do the conversion.
  3. Retitle as a housecar or motorhome in your home state (see the California registration guide for one state’s process).
  4. Pay the applicable sales or use tax.
  5. Insure the van properly with the correct garaging address.

The sales tax is real money. On an expensive build, it’s a significant cost. But it’s a known, one-time cost — not an ongoing risk of back taxes, penalties, insurance voidance, and legal exposure. If paying the tax upfront is a concern, financing options exist that can spread the cost of the build and the associated taxes over time.

The Montana LLC strategy trades a one-time tax payment for an ongoing legal and insurance risk that increases every year as states improve enforcement. For full-time travelers with no home base, the calculus is different. For everyone else, the risk-adjusted math is less favorable than the headline savings suggest.

Where to Go From Here

Sources and Verification

Legal citations reflect statutes as of April 2026. Enforcement details are based on published government press releases, court filings, and legislative records. State enforcement postures and specific rules change over time. This guide is informational and does not constitute legal or tax advice. Consult a tax professional or attorney in your state for guidance on your specific situation.