
Montana Garage Liability for Motor Vehicle Dealers
Montana requires dealer insurance to cover any motor vehicle displaying dealer or demonstrator plates, including a vehicle demonstrated or loaned to a customer in the ordinary course of business; the policy term must be at least one year. Montana also requires proof of insurance in each vehicle on public roads and limits new-franchise loaner plates to customers whose vehicle is being repaired.
What Is Garage Liability Insurance?
Garage liability can address injury and property-damage claims from auto repair and related garage operations. If you run a repair or service shop, check separately whether customer cars in your care need garagekeepers coverage for vehicle damage. Read the national Garage liability guide.
Montana Garage Liability Insurance Requirements
What Should You Watch for With Garage Liability Insurance in Montana?
Policy Must Follow the Plate Use
Montana requires coverage for dealer- and demonstrator-plated units and customer demonstrations or loans. Tell the agent if employees use demonstrators, if customers take them overnight, or if the dealership issues repair loaners. 1
Carry Proof During a Test Drive
Montana requires proof of insurance in the vehicle on public streets and specifically during test drives; the licensed dealer must also verify the driver has a valid license. Put current proof in each test vehicle before handing over keys. 2
Loaner Plates Are Limited to Repair Customers
Montana restricts loaner plates to franchise new dealers and customers whose vehicles are being repaired, with detailed usage records. Have the broker distinguish covered loaner trips from customer demo use and coordinate the plate log. 2
Which Garage Liability Providers Have Montana License Records?
No provider in our research has both a state license record and a listing for this coverage line. This does not establish that providers are unlicensed. Check the regulator’s license lookup and confirm availability with a provider when requesting a quote.
Who Regulates Insurance in Montana?

Montana Commissioner of Securities and Insurance
The Commissioner of Securities and Insurance regulates Montana insurers and producers and acts as a consumer advocate. The office accepts written or online complaints about insurers and insurance professionals. 3,4,5
Surplus-Lines Tax and Stamping Office in Montana
Reported tax rate. 2.75% of total premium (0.75% for legal professional liability) + 2.50% fire tax on applicable fire premium + 0.175% SLIP+ transaction fee on total premium 6,7,9,10
Montana requires an eligible surplus-lines insurer and a statutory placement path when it is the insured’s home state. Before placement, the producing producer must advise you that the insurer is unauthorized in Montana and is not subject to the same supervision as an authorized insurer, and that if the surplus-lines insurer becomes insolvent, Montana’s property-and-casualty guaranty fund will not pay losses under the surplus-lines coverage. Confirm the applicable placement route and tax and fee bases with the producer.
- Montana surplus-lines placement routes: When Montana is home state, §33-2-302 generally calls for an eligible insurer and evidence that the line or full amount is unavailable from authorized insurers (or, at renewal, has not become available). The evidence routes are a diligent search of at least three insurers actually writing that line in Montana (or the smaller actual market), the kind appearing on the current Approved Risk List, or natural-disaster multiperil coverage. The list names kinds and classes; it does not prove that a particular business or BOP qualifies. Section 302 separately waives search requirements for an authorized quote with a premium rate at least 10% above the eligible unauthorized quote, if commissioner-approved disclosure is provided; and for a qualifying exempt commercial purchaser (ECP), after disclosure that coverage may or may not be available from an authorized insurer that may provide greater protection with more regulatory oversight, followed by the purchaser’s later written request. Under §318, an ECP must employ or retain a qualified risk manager as defined in §319, have paid over $100,000 in nationwide commercial P&C premiums in the prior 12 months, and meet one additional §318(1)(c) criterion. Some financial thresholds adjust every five years. 9,10,8,12,15,16
- Check the fire-tax allocation on a commercial package: Section 33-2-311 generally requires the surplus-lines producer to collect and pay the tax when Montana is home state, subject to §33-2-323. For a single-state risk with Montana as home state, §33-2-323(4) requires submission to the Commissioner, who collects the tax. Ask the producer which filing and payment route applies. CSI’s July 2026 guide lists code 1005, Commercial Package (Property & Casualty), with a 50% presumptively reasonable allocation and a 1.25% effective fire-tax rate. Treat this as an example: verify the code and allocation used for the policy; do not assume every BOP is classified as code 1005. CSI’s current schedule sets annual tax due dates (quarterly tax payments are accepted) and separate quarterly SLIP+ transaction-fee deadlines. 11,14,13,17
Questions to Ask Before You Buy Garage Liability in Montana
- Does the Montana policy cover vehicles with dealer, demonstrator, and eligible loaner plates during customer use?
- How will the dealership keep proof of insurance in each test-drive vehicle and verify each driver?
- Are we a franchise dealer eligible to use loaner plates for repair customers, and who keeps the required usage log?
Garage Liability Insurance in Montana: Frequently Asked Questions
What insurance proof must a Montana dealer keep in a test-drive vehicle?
Montana requires proof of insurance on vehicles operated on public streets and says the proof must be in the vehicle during a test drive. The dealer must also verify the driver’s license. 2
Can a Montana dealer use a loaner plate on any customer vehicle?
No. Montana’s dealer guidelines restrict loaner plates to franchise new-vehicle dealers and customers whose vehicles are being repaired, and require detailed usage records. 2
Garage Liability Insurance Guides for Other States
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Other coverage in MontanaEvery coverage guide for Montana, plus the regulator and surplus-lines details.


