Every spring across North Dakota and Minnesota, lake home owners pull their boats out of storage, load them onto trailers, and head to the lake — without verifying whether their boat is actually covered. The assumption is usually that either the homeowner's policy or the auto policy handles it. The reality is that neither one does, or at least not in any way that provides meaningful protection. Watercraft insurance is a separate policy, and for anyone operating a boat with meaningful value or liability exposure, it belongs on the coverage list before the season starts.
What a Watercraft Policy Covers
A dedicated watercraft insurance policy is the complete solution for boat owners. The coverage structure includes:
Physical damage — hull and machinery: Covers damage to the boat itself — fiberglass, hull, motor, propeller, electronics, and equipment — from collision, wind, fire, theft, and other covered causes. Coverage is typically written on an agreed value or actual cash value basis. Agreed value pays the stated amount with no depreciation deduction in the event of a total loss; ACV applies depreciation. For boats with meaningful value, agreed value is the preferred option.
Liability: The most important component. If your boat is involved in an accident that injures another person, damages another vessel, or damages property (a dock, a waterfront structure), liability coverage pays the claim. Boat accidents can generate serious injuries — collision speeds, falls from boats, propeller injuries — that result in substantial claims. Minimum limits of $100,000 are a starting point; $300,000–$500,000 is more appropriate for most boats.
Medical payments: Covers medical expenses for you and your passengers following a boating accident, regardless of fault. Relatively low limits ($5,000–$25,000 is common) but provides immediate coverage for accident-related medical costs without a fault determination.
Uninsured boater: Covers your losses if you're struck by another boater who has no insurance or inadequate insurance. Given that many boaters carry no watercraft insurance, this coverage is worth having.
Towing and assistance: Covers the cost of on-water towing, fuel delivery, jump-starts, and similar emergency assistance. For boats that operate on large Minnesota lakes (Leech Lake, Mille Lacs, Lake of the Woods) or ND reservoirs where distances are significant, this coverage prevents expensive tow bills.
The Assumption That Sinks Most Claims
"My homeowner's policy covers the boat" is the coverage assumption that leads to the most disappointed boat owners filing claims.
Here's the reality: most homeowner's policies include a very small sublimit for certain watercraft — typically small non-motorized craft like canoes and kayaks under a certain length. Some policies include a modest sublimit for outboard motors under $1,500–$2,500. Beyond that, you're outside the scope of your homeowner's coverage.
For a pontoon boat worth $45,000, a ski boat worth $60,000, or a high-performance fishing boat worth $35,000 — none of these are covered under a standard homeowner's policy. A hailstorm in June 2025 that damaged boats stored at a Fargo marina would result in zero payment from the homeowner's carrier for any of these vessels.
The same limitation applies to the cabin policy. If your watercraft is parked at the cabin dock, it's not covered by the cabin's property insurance any more than it would be by your primary home policy. The policy covers the cabin; the boat needs its own coverage.
The Gap at the Cabin
Here's a specific gap worth naming clearly: your boat is stored at the cabin, and neither the cabin policy nor the home policy covers it. Your boat is in transit on the highway, and your auto policy doesn't cover the boat on the trailer. Your boat is in the water at the public launch, and again — no coverage.
The auto policy does have one specific role: your personal auto policy may cover liability while your boat is being towed behind your vehicle on the highway (since the trailer is considered part of the towing vehicle for liability purposes). But physical damage to the boat itself, and any incident once the boat is in the water, are outside the auto policy's scope entirely.
The solution is simple: a dedicated watercraft policy covers the boat from launch to haul-out, whether it's in the water, on the trailer, or stored at the cabin or marina.
How Boat Size and Value Affect Coverage Requirements
Not all boats require the same type of coverage, and the market reflects that:
Small craft (canoes, kayaks, small johnboats): May be added to a homeowner's or cabin policy via endorsement for a modest premium. Not worth a standalone policy in most cases.
Outboard motorboats (14–22 feet): Standard watercraft policies apply. Coverage is straightforward, premiums are modest ($150–$400/year depending on value and usage).
Pontoon boats: Very popular on Minnesota and North Dakota lakes. Physical damage coverage is important given the value ($35,000–$85,000 for current-model pontoons). Liability is important given the passenger-carrying activity. Premiums typically run $250–$600/year.
High-performance boats: More expensive to insure due to higher speeds and resulting liability exposure. Carriers may require operator experience documentation.
Personal watercraft (jet skis): Significant liability exposure due to high speed and operator behavior patterns. Many carriers treat personal watercraft separately from traditional boats and price accordingly.
Sailboats: Different underwriting than powerboats; offshore or coastal usage on Great Lakes generates additional premium considerations.
Seasonal Storage and Layup Provisions
Most watercraft policies in North Dakota and Minnesota are structured to reflect seasonal use. During the winter storage period (typically October or November through April or May), the policy may be on a "layup" basis — reduced premium during the period the boat is confirmed to be out of the water and in storage.
For layup provisions to apply correctly, the boat must actually be out of the water by the date specified in the policy. Boats left in the water after the layup date, in climate conditions where freeze damage is possible, may not be covered for freeze-related loss.
Review your layup dates each fall and make sure they're realistic for your actual haul-out schedule. If you typically leave the boat in the water through mid-October on a Minnesota lake, a September 30 layup date creates a coverage gap.
How Watercraft Liability Connects to Your Umbrella
A personal umbrella policy can extend liability coverage above your watercraft policy's limits — but only if the umbrella carrier is aware of your watercraft and the watercraft policy meets minimum underlying limits.
Most umbrella carriers require you to disclose all watercraft and require that each one carry a minimum liability limit (often $100,000–$300,000) before the umbrella will extend coverage. If you have a $1 million personal umbrella but didn't disclose your boat or your boat carries no liability coverage, the umbrella may not respond to a boat-related claim.
Coordinating watercraft coverage with your personal umbrella is one of the specific benefits of having a single advisor who sees your full personal coverage picture. To review your boat coverage and how it connects to your home, cabin, and umbrella, visit /personal-insurance or schedule a review with Kain Carlson.
Kain Carlson is an independent insurance advisor based in Fargo, ND, licensed in North Dakota and Minnesota. He works with owner-operated businesses across all three coverage pillars — commercial, benefits, and personal — under one advisory relationship. Schedule a review to see where your coverage stands.