Lay-up periods, navigation territory limits, and the survey timing trick that most owners only learn after their second renewal.
Insurance Tips
Most marine carriers offer a "lay-up" credit for the months your boat is not in the water — typically November through March in northern latitudes. The discount runs 30 to 45 percent of your premium, prorated to the lay-up window. Many policies default to "all-year navigation" because it is easier for the agent to write. Always ask explicitly.
A policy that covers you "anywhere in coastal US waters" costs significantly more than one limited to a 75-mile radius from your home port. If you have not crossed state lines in two seasons, narrow the territory at renewal. You can always endorse it back up for a single trip.
Boats over $75,000 in hull value, or over 25 years old, almost always require a fresh marine survey to get the best rates. Carriers accept surveys up to three to five years old. Get yours done in the off-season when surveyors are cheaper and faster — and time it so the survey is fresh going into your next two renewal cycles, not the one after.
The combined policy your agent quotes is convenient but rarely optimal. Hull coverage on a 32-foot center console, liability protection, and tender (dinghy) coverage are often cheaper through specialist marine carriers than through a generalist's package. AiM regularly splits these and saves clients 20 to 35 percent on identical coverage.
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