BOAT-COMPARATOR Guide

Boat hire excess insurance: how it works and when it pays off

Security deposits of €500-5,000, deposit waivers most often at €10-30 a day, third-party excess insurance: how to cap the financial risk of a boat hire.

On a boat rental, the biggest number in the contract is often not the weekly rate: it’s the security deposit. From €500 for a small motorboat to €3,000-5,000 for a cruising sailboat or catamaran, it sometimes exceeds the price of the rental itself. Hence the popularity of boat hire excess insurance — deposit waivers, damage waivers, excess buy-back — which promise that a few tens of euros a day will spare you the risk of losing thousands. Here is how these products actually work, what they cost, what they exclude, and when they genuinely pay off.

The security deposit: money blocked, not spent

The deposit is a guarantee the operator holds for the duration of the rental: most often a card pre-authorisation, sometimes an actual charge refunded on return. It is only kept — in full or in part — if damage is found at check-out. Its size tracks the boat’s value: a few hundred euros for a licence-free boat or a day RIB, commonly €1,500 to €5,000 for a liveaboard sailboat or catamaran by the week. Our guide to deposits and insurance on a boat rental covers the forms it can take from one operator to another.

Deposit and excess: related but not identical

The boat you charter is almost always insured by its owner or charter company. But that policy carries an excess (deductible): the share of any damage that stays with the renter after an at-fault incident. In the vast majority of contracts the deposit is set at the level of that excess — it represents your maximum financial exposure for damage the boat’s own insurance covers. Buying a deposit waiver therefore means, in practice, buying out all or part of that excess.

Option 1: the waiver sold by the platform or the operator

This is the most visible route. Click&Boat offers an optional deposit-waiver insurance, underwritten by a partner insurer and added at payment, priced according to the deposit amount and the rental duration; it reimburses all or part of a deposit withheld after damage. SamBoat runs a comparable scheme, which can be taken out at booking or afterwards: the deposit still has to be placed, but the insurance refunds whatever is charged against it after a covered incident, minus a residual share (most often a percentage of the claim with a minimum amount left with you). With professional charter fleets — the kind you find via Boataround — the equivalent is usually called a damage waiver or deposit insurance: a non-refundable option paid to the operator that sharply reduces the deposit requested at check-in. Exact terms vary from contract to contract: read the policy wording, not just the price line.

Option 2: third-party excess insurance

Specialist brokers sell charter deposit insurance independent of any platform, sometimes better value on long rentals or large deposits. Two structural limits: the deposit still gets blocked as normal (the policy does not replace it), and after an incident you pay first and get reimbursed later, once the claim is processed. Most of these contracts also keep a small residual excess, often in the region of 5-10% of the claim or a fixed amount.

Option 3: your bank card — treat with caution

The rental-vehicle cover attached to premium cards sounds tempting, but it is almost always written for cars: boats are most often excluded, or covered only under very restrictive conditions. Before relying on it, get written confirmation from your bank or the exact clause of the contract — our guide to credit card insurance for boat rentals reviews these schemes. In practice the card mainly serves as the support for the deposit pre-authorisation, rarely as insurance.

What it costs, in real terms

Market orders of magnitude: platform deposit waivers most often run between €10 and €30 per day depending on the deposit amount and the size of the boat, i.e. roughly €70-200 for a week; the damage waivers of the big charter fleets reach comparable figures, more on larger yachts. Two constants: the premium is never refunded if the cruise goes well, and it does not always remove the whole risk (residual share, exclusions). To place this line in the overall budget, see our guide to how much a boat rental costs.

What excess insurance almost never covers

This is the most misunderstood point. Most contracts exclude some or all of the following:

• the dinghy and its outboard engine, statistically among the most frequent losses of a charter week;
• the sails (the spinnaker in particular) under some contracts, or wear deemed abusive;
• loose equipment: lost fenders, boat hook, handheld VHF, sometimes blocked toilets;
• gross negligence: sailing outside the permitted area, an undeclared skipper, alcohol, heading out despite a gale warning — in those cases neither the deposit nor its waiver protects you, and your liability can even exceed the deposit.

If a deduction at check-out seems unfair, you do have recourse: our guide to a deposit not refunded and rental disputes walks through the steps.

So, is it worth it?

Behavioural economics sheds useful light on the decision. A now-classic study of deductible choices in home insurance shows that most policyholders pick a low deductible while paying far more than the statistical value of the risk avoided — a level of risk aversion over modest stakes that is hard to justify rationally (Justin Sydnor, (Over)insuring Modest Risks, American Economic Journal: Applied Economics, 2010, see the study on Google Scholar). Later work on the same deductible choices attributes this behaviour to an overweighting of small claim probabilities (Barseghyan, Molinari, O’Donoghue & Teitelbaum, The Nature of Risk Preferences: Evidence from Insurance Choices, American Economic Review, 2013, see the study on Google Scholar). Translated into boating terms: for a day trip with a €500 deposit, boat hire excess insurance is statistically a poor deal for most renters. But for a week on a catamaran with a €3,000-5,000 deposit — an amount whose blocking or loss would genuinely hurt your finances — paying roughly €100-200 to cap the risk is a defensible call, especially with an inexperienced crew or tricky anchorages on the itinerary.

Before you book: three checks

One, read the exclusions (dinghy, outboard, sails, residual share) before paying for the option. Two, know that a boat rental booking carries no 14-day cooling-off right: the contract’s cancellation terms apply, options included — our guide on why there is no 14-day cooling-off period on boat rentals explains why. Three, compare the total cost, option included: on Boat-Comparator you see live offers from Boataround, SamBoat and Click&Boat for the same destination, and the price gaps between platforms sometimes pay for the deposit waiver on their own.

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Also worth reading

• How much does it cost to rent a boat in 2026? Real prices
• License-Free Boat Rental in France: Rules, Prices & Where to Book
• Renting with or without a skipper: how to choose