Boat Insurance for Montana
Montana boat insurance for boaters who know the water.
From Flathead Lake to Canyon Ferry Reservoir and Fort Peck Lake, Roamly works with carriers who understand how Montanans actually boat.
Montana at a Glance
Requirement | Details |
|---|---|
Insurance requirement | Not required by state law for private recreational boats. Owners can be held liable when someone using the boat with permission operates it negligently, and lenders and marinas often require coverage. |
Boater education | No education requirement for adults. Operators 13 and 14 need a motorboat operator's certificate or an adult aboard to run a boat or PWC over 10 hp, and anyone 12 or under needs an adult 18 or older aboard. |
Boating under the influence | Boating under the influence is a misdemeanor with a fine of $15 to $500, up to six months in jail, or both. A BAC of 0.08 or higher lets a court infer you were under the influence. |
Registration | Motorboats and sailboats are titled and registered through your county treasurer with a one-time fee, with no renewals. As of October 2026, a boat from 16 to under 19 feet is $125.50, and the three-year validation decal was eliminated in 2025. |
Requirements and regulations may change. Verify with the Montana Commissioner of Securities and Insurance and Montana Fish, Wildlife & Parks for the most current information.
What you need to know about Boat Insurance in Montana
Montana doesn't require boat insurance, but it holds owners liable for negligent operation by anyone they let use their boat, charges a one-time registration fee instead of renewals, and requires an invasive species inspection before you launch a boat coming into the state. Here's what actually shapes your policy.
Montana's Boat Insurance Rules
No Montana law requires insurance on a private recreational boat or personal watercraft. You can still be held responsible for damage or injuries you cause on the water, and marinas and lenders set their own coverage rules. Montana also makes the owner liable when someone using the boat with permission operates it negligently. We'll help you figure out what makes sense for how you boat.
Agreed Value for Your Boat
Your aluminum fishing boat with a new outboard, a kicker motor, and networked graphs isn't a stock boat. Roamly works with carriers who may value the work you've put in, not some database guess.
Electronics and Gear Coverage
Fish finders, downriggers, tower speakers, rods, and wakeboards add up fast. Roamly works with carriers who may offer coverage options for marine electronics and the personal gear you bring aboard.
Coverage Lenders and Marinas Ask For
If you finance your boat, your lender will likely require coverage for the boat itself, and many marinas ask for proof of liability coverage before you can rent a slip on Flathead Lake or store your boat for the winter. Roamly works with carriers who may help you meet those requirements, and we'll help you get the paperwork in order.
Protection Beyond Basics
Type | Details |
|---|---|
Mechanical Breakdown Coverage | Engines fail at the worst times — like far out on Fort Peck Lake, miles from the nearest marina. Through Roamly's carrier partners, coverage may be available to help with sudden mechanical breakdowns beyond warranty. |
Guest Medical Coverage | Summer weekends on Flathead Lake mean friends and family aboard and plenty of time in and out of the water. Roamly works with carriers who may offer medical payments options for guests hurt on your boat. |
Docking Mishaps | Afternoon winds and busy summer launches lead to bumps and scrapes. Through Roamly's carrier partners, coverage may be available for damage from docking mishaps. |
Protect the Gear You Bring Aboard
A day on Canyon Ferry or a weekend on Flathead Lake means a lot of gear on board — rods and reels, tackle, wakeboards, coolers, and electronics at the helm. Many basic policies limit coverage for personal property, so check yours before your next trip. Roamly works with carriers who may offer coverage options for marine electronics and personal effects like fishing and water sports equipment, which may help you replace what's lost or damaged.
What Montana Actually Requires
Montana doesn't require insurance on a private recreational boat. What the state does require: a motorboat operator's certificate or adult supervision for operators 13 and 14 running a boat or PWC over 10 hp, with an adult 18 or older aboard for anyone 12 or under; titling and one-time registration through your county treasurer; an invasive species inspection before launching any boat entering Montana, and a stop at every open inspection station; a life jacket on every child under 12 aboard a boat under 26 feet while it's moving; and a life jacket on everyone aboard a PWC. Accidents involving a death, a disappearance, an injury, or more than $2,000 in damage must be reported immediately to the county sheriff or a game warden. Going without coverage may be legal, but one collision can mean damage to another boat, a dock, or someone you hurt — and liability alone doesn't pay to fix or replace your own boat. We'll help you figure out what makes sense for your situation.
Real Value for Upgraded Boats
You set up your boat the way you wanted it: a new outboard, a kicker motor, networked graphs, and a better trailer. Book value doesn't account for the upgrades you've added. Roamly works with carriers who offer Agreed Value coverage options — we'll help document your boat so it may be insured for an agreed amount that reflects your upgrades, which may help if you ever need to file a claim.
LEGAL DISCLAIMERS
Roamly is a licensed insurance agency. Insurance policies referenced are offered through Roamly and underwritten by third-party carriers including Progressive, National General, Foremost, Liberty Mutual, American Modern, Ahoy Insurance, and Spinnaker Insurance Company, among others. Not all products or coverages are available in every state. Coverage terms, conditions, limits, deductibles, exclusions, and availability vary by state, carrier, and policy. This page is provided for general information and is not a contract of insurance. See the actual policy for a full description of coverages, terms, and conditions. Montana law references current as of October 2026 — confirm current requirements with the Montana Commissioner of Securities and Insurance, Montana Fish, Wildlife & Parks, and the Motor Vehicle Division.
Why Roamly?
True replacement value
Your boat isn't just worth the Blue Book numbers. We'll find you a policy that insures it for what it's actually worth – including your upgraded electronics.
Real-world coverage
From shallow water prop strikes to dock collisions, we cover the stuff that actually happens to recreational boaters.
Insurance by boaters, for boaters
Our marine specialists actually spend their weekends on the water. They speak your language because they boat too.
No. Montana law doesn't require insurance on a private recreational boat or personal watercraft. If you finance your boat or keep it at a marina, your lender or marina will likely require coverage. Even without a mandate, you can be held responsible for damage or injuries you cause on the water. Requirements may change — verify with the Montana Commissioner of Securities and Insurance.
Only if you're 13 or 14. Operators that age need a Montana motorboat operator's certificate or an adult 18 or older aboard to run a motorboat or PWC over 10 horsepower, and anyone 12 or under needs an adult 18 or older aboard. Operators 15 and older don't need a card under state law, and rental businesses can't rent a motorboat or PWC over 10 hp to anyone under 18. Montana Fish, Wildlife & Parks offers a free home-study course.
It depends on your boat's type, size, value, and horsepower, where you keep and use it, your boating experience, and the coverage you pick. Whether you keep it at a lake marina or on a trailer, how you store it over the winter, and adding physical damage coverage or coverage for electronics and gear will change the price. Get a personalized quote to find out your rate.
Roamly is a brokerage — we work with carriers who may offer coverage options for marine electronics like fish finders and downriggers, plus personal effects like fishing gear and water sports equipment. Limits and eligibility depend on the carrier, so it's worth asking before you buy. Coverage terms, conditions, and availability vary by state and policy.
Roamly works with carriers who offer Agreed Value coverage options. We may help document your boat and its upgrades up front so it can be insured for an agreed amount, not a depreciated book value. If it's totaled, the agreed value — less any deductible — is what the policy is built around. Coverage terms, conditions, and availability vary by state and policy.
Montana doesn't require either one. Liability pays for damage you cause to other people and their property — another boat, a dock, or someone hurt in a collision. "Full coverage" usually means adding physical damage coverage, which helps pay to repair or replace your own boat after a collision, theft, vandalism, or storm damage. If you're financing, your lender will likely require it.
Montana doesn't set a strict per se limit for boating: a BAC of 0.08 or higher lets a court infer you were under the influence. A violation is a misdemeanor with a fine of $15 to $500, up to six months in jail, or both. If you refuse a test, no test is given, but your refusal can be used as evidence. If a violation is on your record, Roamly works with carriers that may still be able to help you find coverage. Coverage terms, conditions, and availability vary by state and policy.
It can. Montana's credit law expressly covers boat and personal watercraft policies: insurers can't deny, cancel, or non-renew based on credit without another independent underwriting factor, and in most cases they must recheck your credit at least every 36 months. Your boating experience, your boat, and where you keep it are also major rating factors, and how much each one counts varies by carrier.
Yes. Nonresident boats need a Vessel AIS Prevention Pass each year — as of October 2026, $30 for motorized boats and $10 for nonmotorized boats — and every boat entering Montana must be inspected before launching. Boats crossing the Continental Divide westbound into the Columbia River Basin, or entering the Flathead Basin after being used on outside waters, also need an inspection, and boats with ballast tanks or bladders crossing into the Columbia River Basin need decontamination before launching.
Still have questions?
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Montana Boat Insurance Quotes in Minutes
Montana boat insurance for boaters who know the water.
* Roamly is an insurance agency, not a carrier. Coverage, limits, and availability vary by carrier and by state, and are subject to underwriting approval.
Roamly Insurance Group, LLC ("Roamly") is a licensed general agent for affiliated and non-affiliated insurance companies. Roamly is licensed as an agency in all states in which products are offered. Roamly license numbers. Availability and qualification for coverage, terms, rates, and discounts may vary by jurisdiction. We do not in any way imply that the materials on the site or products are available in jurisdictions in which we are not licensed to do business or that we are soliciting business in any such jurisdiction. Coverage under your insurance policy is subject to the terms and conditions of that policy and is ultimately the decision of the buyer.
Policies provided by Roamly are underwritten by Spinnaker Insurance Company, Progressive Insurance Company, Liberty Mutual Insurance Company, Foremost Insurance Company, National General Insurance, and others.
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