Liability coverage for a 20-foot runabout typically costs $300–$600 per year, while full coverage on a $50,000 cabin cruiser runs $800–$1,500 annually. Those ranges shift dramatically based on where you boat, how you store it, and what the policy actually covers.
The short answer
Boat insurance—also called watercraft insurance—covers liability when you damage someone else’s property or injure another person, plus physical damage to your own boat from collisions, weather, theft, and sinking. Medical payments coverage handles injuries to you and your passengers. Premiums depend on boat type, value, horsepower, navigational area, and your claims history.
What boat coverage types actually protect
Boat insurance policies break into four core components, each covering a distinct risk:
| Coverage Type | What It Pays For | Typical Limit |
|---|---|---|
| Liability | Damage/injury you cause to others; legal defense | $300,000–$1,000,000 |
| Hull (physical damage) | Collision, sinking, fire, theft, vandalism, weather damage to your boat | Agreed value or actual cash value |
| Medical payments | Injuries to you and passengers, regardless of fault | $1,000–$10,000 per person |
| Uninsured watercraft | Damage caused by a boater with no insurance or a hit-and-run | Matches your liability limit |
Liability is the foundation. If you collide with another boat, damage a dock, or injure a swimmer, this pays their repair and medical bills plus your legal costs. Most lenders require $300,000 minimum if you finance the boat; $500,000 is the common baseline for owned boats.
Hull coverage (also called physical damage) reimburses you when your boat itself is damaged or destroyed. Policies pay either agreed value—a fixed amount you and the insurer settle on at policy start—or actual cash value, which subtracts depreciation. Agreed value typically costs more but eliminates depreciation disputes after a total loss. Hull coverage includes your motor, permanently attached electronics, and factory-installed equipment; aftermarket upgrades require a scheduled rider.
Medical payments works like PIP in auto insurance: it pays hospital and ambulance bills for you and your passengers immediately, no matter who caused the accident. It does not cover long-term disability or lost wages.
Uninsured watercraft coverage steps in when the at-fault boater has no insurance or flees the scene. Roughly 30% of recreational boats operate without insurance, making this far from a theoretical risk.
What boat insurance costs by type and size
Annual premiums depend primarily on boat value, type, length, horsepower, and where you navigate. Here are 2025 baseline ranges from insurer rate filings:
- Small boats under 26 feet (bowriders, pontoons, fishing boats): $300–$900/year for liability + hull on a $15,000–$40,000 boat
- Mid-size boats 26–35 feet (cabin cruisers, cuddy cabins): $800–$2,000/year for a $50,000–$100,000 boat
- Large boats over 35 feet or high-performance boats: $2,000–$5,000+/year depending on value and speed
- Personal watercraft (Jet Skis, WaveRunners): $200–$500/year for liability + hull on a $10,000 machine
Those ranges assume:
- Boat stored on land or covered slip when not in use
- Operator over age 25 with boater safety certification
- Coastal or inland lake navigation (not ocean racing)
- No prior claims in the past three years
A 28-foot Sea Ray worth $70,000, kept in a Florida marina, with a 35-year-old owner and $500,000 liability might run $1,200–$1,600/year. The same boat in Minnesota, stored on a trailer in winter, drops to $900–$1,200 because hurricane and saltwater corrosion risks disappear.
Deductibles typically range from $500 to $2,500. Raising your deductible from $500 to $1,000 will generally reduce hull premiums, though the savings amount varies by boat and insurer.
What boat insurance does NOT cover
Exclusions matter as much as coverage. Policies routinely exclude:
- Wear and tear and gradual damage: Gelcoat oxidation, engine corrosion, blistering hulls, mold, and rot are maintenance issues, not covered perils. If your lower unit seizes from lack of oil changes, you pay.
- Racing and speed contests: If you enter a regatta or organized race, hull and liability coverage typically suspend. You need a race-day rider.
- Commercial use: Charter, fishing-for-hire, lessons, and towing (tubing, wakeboarding) for pay void personal policies. You need commercial marine insurance.
- Operator violations: Damage occurring while the operator is intoxicated (blood alcohol over the state legal limit, usually 0.08%) or lacks a required boating license is excluded in most states.
- Towing non-boat objects: Pulling a friend’s pontoon back to the dock after a breakdown may be excluded under “towing” clauses; towing a water skier is usually fine.
- Damage from vermin or insects: Rodents chewing wiring over winter storage is a maintenance failure, not a covered peril.
Many policies also exclude or limit coverage if the operator is under age 25 or has not completed a state-approved boater safety course. Florida requires proof of course completion for anyone born after January 1, 1988 under Florida Statute §327.395; insurers often extend that as a policy requirement regardless of state law.
State rules and lender requirements
Boat insurance is not mandatory in most states—unlike auto insurance. However:
- Lenders require it: If you finance the boat, the lender will demand liability and hull coverage (usually agreed value) until the loan is paid off.
- Marinas and clubs often require proof: Many marinas and yacht clubs mandate $300,000–$500,000 liability before you can lease a slip or use launch facilities.
- A few states have liability requirements for high-speed boats: For example, California requires watercraft operators to carry liability insurance or post a bond if cited for a boating violation under California Harbors and Navigation Code §655.2.
Homeowners or renters insurance sometimes includes a small sub-limit ($1,000–$5,000) for small boats with motors under 25–50 horsepower, but this is liability-only and excludes hull damage. If your boat is worth more than that threshold or has a larger engine, you need a standalone watercraft insurance policy.
Agreed value vs. actual cash value: the trade-off that matters at claim time
When you total a boat, hull coverage pays out based on one of two methods:
- Agreed value: You and the insurer set a fixed payout amount when the policy starts, based on the boat’s condition and market value. If the boat is totaled, you receive that amount—no depreciation, no negotiation. This option typically carries a higher premium.
- Actual cash value (ACV): The insurer pays the boat’s depreciated value at the time of loss. A five-year-old boat that cost $40,000 new might be valued at $28,000 after depreciation. Premiums are lower, but you bear the depreciation risk.
For financed boats or boats under five years old, agreed value is almost always worth the extra premium because depreciation can quickly outpace the loan balance, leaving you underwater on the loan. For older boats you own outright, ACV may be acceptable if you’re comfortable with a smaller payout.
FAQ
Does boat insurance cover hurricanes and storms?
Yes, if you carry hull coverage. Named windstorms, hurricanes, lightning, and hail are covered perils under standard hull policies. However, you must follow policy requirements: if a hurricane warning is issued 48 hours in advance and the policy requires you to move the boat to inland storage or a haul-out facility, failing to do so can reduce or void your claim.
What if I take my boat to Mexico or the Bahamas?
Most U.S. boat insurance policies restrict coverage to U.S. and Canadian waters. Mexico, the Bahamas, and the Caribbean typically require either an endorsement (add $100–$300 to your premium for a seasonal cruising rider) or a separate marine policy. Check your navigational limits in the policy declarations.
Does my boat insurance cover my trailer?
Sometimes. Many policies include the trailer up to a sub-limit (often 5–10% of the boat’s hull value, capped at $2,000–$5,000). If your trailer is worth more—say, a custom aluminum triple-axle rig—you need to schedule it separately or cover it under your auto policy as towed equipment.
Can I insure a boat I’m test-driving or borrowing?
If you’re borrowing a friend’s boat, their insurance is primary—but their policy may exclude permissive users under age 25 or without a safety certificate. If you regularly borrow a boat, ask about a named operator endorsement on the owner’s policy, or buy a short-term watercraft policy if you’re test-driving before purchase.
Boat insurance premiums and exclusions vary widely by insurer, state, and boat type. Compare at least three quotes, read the exclusions section, and confirm your navigational area and storage method match the policy terms. If you finance, clarify whether the lender requires agreed value or will accept ACV.
This article provides general information about boat insurance and is not insurance or financial advice. Coverage terms, exclusions, state requirements, and premiums vary by insurer, location, and individual circumstances. Consult a licensed insurance agent or attorney for guidance on your specific situation.