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Three friends laughing behind the windscreen of a dark blue motorboat as it skims across a lake in the sunshine

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Motorboat insurance: Full throttle, zero worries.

Push the throttle, feel the spray and leave the worries to us. Zero fuss: a premium in about a minute and a real person on the phone. Full stop.

  • Talked through in English
  • Documents sent the same working day
  • Claims handled by our own team

Paperwork, waiting, hold music

Three steps and the water is yours again

  1. Tell us horsepower and value

    Engine power drives the liability premium, the boat's value drives the hull premium. That is all the calculator needs.

  2. Decide in your own time

    Like the figure? Go ahead online. Prefer to talk? Ring us and we walk you through it in English.

  3. We are there when it matters

    Report a claim to us directly. We arrange surveyor and yard and stay on it until it is settled.

Plain numbers, no small print

What does your happy place cost a day?

Slide the boat value, pick your level of backup. The figure comes straight from our tariff, not from a guess.

How much backup would you like?

€25m liability plus full hull cover

The price of a good feeling

€1.22a day

€444 a year, paid annually

Less than a scoop of ice cream on the pier.

Example for a boat worth €20,000, tariff as of 3 October 2026.

Arranged by NAMMERT as underwriting agency and insurance broker.

Good to know

The premium hangs on the engine

German motorboat tariffs are rated on engine power, not on what the boat is worth. So much hangs on that one figure that two boats of the same length can be priced far apart, and that a well kept older hull with a modest engine stays cheap to insure.

What does motorboat insurance cost?

In short

Liability starts at 49 euros a year and is rated on engine power,

not on the value of the boat.

Full cover includes theft of the outboard if it was secured with a locking bolt or similar.

From Basis-Plus the liability covers towing water skiers,

a tender up to 30 hp and the trailer at no extra premium,

the trailer once it is named in the application with its value.

Figures from the NAMMERT tariff, August 2026, annual premium including insurance tax.

Partial cover and full cover

Partial covers what happens to the boat with nobody at the helm. Full adds what happens while she is being driven.

Storm, hail, lightning

PartialAshore and in winter storage too.

Fire and explosion

PartialIncluding fire spreading from the boat beside you on the pontoon.

Theft of the boat

PartialThe hull and everything fixed to it. A loose outboard only under full cover.

Sinking

FullAfter an accident such as a collision or grounding. Not a fitting that simply fails with age.

Grounding

FullRudder, shaft, propeller and gearbox after touching bottom.

Coming alongside

FullAgainst another boat, the pontoon or the quay wall.

Outboard theft

FullProvided it was secured with a locking bolt or similar device, or kept in a locked building.

Your own mistake

FullHandling errors by the driver, short of intent. Gross negligence is covered by tariff.

What sets a motorboat apart

Six points where a motorboat policy differs from a sailing one.

Rated on horsepower

The premium follows engine output. Repower the boat and the premium moves, so tell us before the season, not after a claim.

Outboard theft

Covered under full cover if the outboard was secured with a locking bolt or similar device, or kept in a locked building. Ask about that condition in any quote.

Towing water skiers

Water skiing, wakeboarding and towed toys are included in liability from Basis-Plus. Check any competing quote for a towing exclusion.

Tender at no extra premium

In the liability section from Basis-Plus, used on its own up to 30 hp and within ten nautical miles of the mother boat, in Premium without the hp limit. Beyond that it needs a policy of its own.

Trailer from Basis-Plus

Carried in the liability section without extra premium, uncoupled and while manoeuvring as well, once it is named in the application with its value.

Agreed value

In Premium, and in Basis-Plus within its age rules, the sum is set in writing before anything happens, so a total loss is not an argument about what a used hull was worth that morning.

Power is not the same as value

Plainly said

A 30 year old sports boat with a fresh 300 hp outboard pays more for liability than a modern displacement cruiser worth three times as much. That looks unfair until the claims files are read: power is what causes the collisions, and the value only decides what the repair costs.

If your boat is fast and your hull is modest, ask for the liability and full cover figures separately. The split tells you where the money actually goes.

You are not on your own

Already out on the water with NAMMERT

On a motosurf board, in a jet ski team, on a sailing boat out at sea:

athletes are already racing with the NAMMERT logo.

From 2027 the ranking turns that into points, and the entry fee comes back.

Motosurfer at full speed with a large NAMMERT logo on the board
Motosurf
Six jet ski riders in team shirts with the NAMMERT logo at a beach bar, thumbs up
Jet ski team
Sailing boat under way on the open sea with a NAMMERT flag flying in the rigging
Sailing at sea
Short film: a foiling race yacht and a powerboat carrying the NAMMERT logo at full speed across the water
The NAMMERT logo in motion

Sign up now

Which engine figure counts?

Before you buy

Rated output at the crankshaft in kW, taken from the engine plate or the papers. If the boat carries two engines, both go in.

The three questions you actually have

Before you sign

Not “what does it cost” for your motorboat; you can work that out yourself in a minute. These are the three nobody asks an insurer out loud. Here they are, with the answers we can back up.

“Will they actually pay?”

As your broker we handle the claim with you, your motorboat included: one report to us, then we arrange the surveyor and one of more than 2,000 partner yards and follow it through to payment. The yard invoices directly; you pay the deductible and nothing else.

What happens in the first 48 hours →

“Who picks up the phone?”

A family firm since 1989, now in its second generation, with three of its own offices: Königs Wusterhausen near Berlin, Salzburg and Palma de Mallorca. No call centre, no franchise. You get a named contact for your motorboat from the first hour; and after office hours, a number somebody answers.

Out of hours: +49 3375 29 28 95 →

“And if I choose wrong?”

Find the same cover for your motorboat cheaper elsewhere and we make up the difference. Our comparison sets seven providers against the same criteria; including the segments where somebody else comes out ahead of us, and the one where we are the most expensive in the field.

Price guarantee →When we are not the right fit →

Which language is the policy wording in?

The policy wording is German; we go through it with you in English Our terms and conditions, the insurance product information documents and the cancellation notice exist in German, and the German wording is the binding one. We will not pretend otherwise. What we do: send you the product information documents translated, and walk you through the cover for your motorboat on the phone in English before you sign anything. The full cover for your motorboat, clause by clause, is written out in English on our detail page. Ask us for the documents and we send them the same working day. Any translation we provide is a courtesy translation; in case of doubt the German version prevails. Read the cover in full Request the documents

Frequently asked

Questions and answers

What does motorboat insurance cost?

Liability starts at 49 euros a year and is rated on engine power, not on the value of the boat.

Full cover includes theft of the outboard if it was secured with a locking bolt or similar.

From Basis-Plus the liability covers towing water skiers,

a tender up to 30 hp and the trailer at no extra premium,

the trailer once it is named in the application with its value.

Which engine figure counts?

Rated output at the crankshaft in kW, taken from the engine plate or the papers.

If the boat carries two engines, both go in.

Is engine damage covered?

An engine damaged by fire, or stolen with the whole boat, is a claim already under partial cover.

Grounding and collision damage come under full cover.

An engine that fails from inside is not a hull claim.

For that there is the machinery cover, available from Basis-Plus for engines up to ten years old.

Who pays for frost damage to the engine?

Usually nobody: frost damage is excluded in every tariff unless a storm caused it.

Proper draining and winterising is therefore your own protection.

Keep the invoices for the lay-up anyway,

because the machinery cover requires maintenance by a specialist firm.

How high is the deductible for a motorboat?

You choose between 500 and 1,000 euros on the hull cover for a motorboat;

the higher figure lowers the premium.

There are no extra deductions by type of loss.

In Basis PLUS and Premium the deductible does not apply to total loss and theft,

in Premium for theft only if the craft was kept locked away or on enclosed premises.

After five claim-free years it is halved there for the first claim;

in Basis the agreed amount always applies.

Are my own handling errors covered on a motorboat?

Yes, if the motorboat has full cover.

Then your own mistake at the helm, a grounding or a collision is paid,

and for gross negligence the insurer does not reduce the payment up to 25 percent of the sum

insured in Basis PLUS and up to 50 percent in Premium.

Only intent is excluded.

Partial cover only pays for what comes from outside.

Are storm, theft and vandalism covered on a motorboat?

Storm, hail, fire, lightning and theft of the whole motorboat are paid already under partial

cover, sinking after an accident,

theft of single parts down to the outboard and wilful damage under full cover,

in winter storage and on the trailer too; only a seasonal policy pauses in winter.

Salvage costs after an accident come on top: by official order up to the sum insured in Basis,

up to 1 million euros in Basis-Plus and up to 2.5 million in Premium.

New value or current value: what is paid for a motorboat on a total loss?

It depends on the tariff.

Premium pays the agreed value: the figure fixed at the start, no deduction new for old,

no age limit.

Basis-Plus pays the agreed value while the motorboat is up to five years old,

or older if its current value still reaches half the sum insured,

in both cases once replacement is shown.

Otherwise,

and always in Basis, the current value is paid, what the motorboat was worth just before the loss.

Does the cover apply to a motorboat in the Mediterranean and on the high seas?

Yes, if the waters belong to the cruising area of the motorboat stated in the policy.

You can choose inland waters, North Sea and Baltic, the Mediterranean or worldwide,

without surcharge for the wider level and without time limit.

Anyone in Premium who goes beyond it once is still covered for six weeks a year.

Is insurance for a motorboat required by law?

Under German law, no, apart from the Swiss part of Lake Constance.

Anyone taking a motorboat to Italy, Spain, Greece,

Denmark or Croatia (from 15 kW) needs liability cover there by law.

And almost everywhere the harbour asks for proof before it allocates a berth.

Questions from owners

Your question: Motorboat insurance

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Answers come from us, not from other readers.

We send the answer there. It is never shown and deleted afterwards.

Is it about your own policy or a claim? Please call: +49 3375 29 12 77

A boy laughs as he steers a motorboat, his father beside him

More water, fewer worries.

Cheaper elsewhere? We pay the difference.

Find the same cover for a lower premium somewhere else and we make up the difference, for the term of the policy, up to one year. Read the guarantee and its limits

Or call us now: +49 3375 29 12 77