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Buying a used boat on classified ads: pay safely, insure correctly

Many people looking for a used boat in Germany or Austria end up on classified portals such as Kleinanzeigen or willhaben. The offers are often good, but you are almost always buying from a private seller: no dealer, usually no warranty, and when the price looks too good, sometimes no boat at all.

This page walks you through the steps in order: check the ad, compare papers and numbers, pay safely and arrange insurance before you first cast off. The used boat checklist and a boat sale contract are free to print.

Key points

Never pay a deposit for a boat you have not seen, and never through a payment link someone sends you.
Compare the hull number, engine number and names in the papers with the seller's ID.
Buying privately usually means bought as seen. Inspect carefully and put everything in writing.
Under German law an existing hull policy passes to the buyer with the boat; the seller's liability cover ends with the sale.
Without liability cover of your own you are unprotected from the handover day. Arrange it before you go out.

Spot scams before you transfer money

Boat ads attract fraud because the sums are large and buyers often live far away. Almost every scam ends with you paying before you have seen the boat.

The price is well below comparable boats. Our price check shows within a minute whether an offer is plausible.
The boat is said to be abroad or already with a shipping company, so no viewing is possible.
You are asked for a deposit to reserve the boat.
You receive a payment link or an alleged escrow service by email, text or messenger.
The seller wants to move the conversation off the portal quickly.

The simplest rule

Pay at the handover, when the boat, papers and keys are in front of you. Open payment services yourself, never through a link you were sent.

More scams with examples: online boat sale scams.

Check papers and numbers

Germany has no register for pleasure craft that proves ownership. A registration mark or boat certificate only shows who registered the boat. What counts are the seller's documents and whether the numbers on the boat match them.

Original invoice or previous sale contract in the seller's name.
Hull number (CIN or HIN), usually on the starboard side of the transom on boats from 1998 on. Our HIN decoder explains what the characters mean.
Engine number compared with the papers, and the engine hours.
Trailer: both parts of the German registration certificate belong with it.
Check boat and engine against the list of stolen boats and engines.

Viewing and sea trial

View the boat in daylight, ideally out of the water and afloat. The used boat checklist covers hull, osmosis, rigging, engine, electrics and trailer. Look out for damp laminate and old damage: such defects cause disputes later, including with an insurer.

For a larger boat a survey is almost always worth its cost.

Contract and handover

Private sellers in Germany usually exclude liability for defects. That does not protect a seller who knowingly hides a defect. What you can do then is explained under defects after buying a boat.

Record in the contract what the seller says about condition, accidents and engine hours, plus the date and time of handover.

Pay on handover, by instant transfer on the spot or in cash against a receipt.
Take all documents: invoices, service records, manuals, trailer papers.
From the handover you carry the risk.

Insurance from the handover day

Under § 95 of the German Insurance Contract Act, an existing hull insurance passes to the buyer with ownership. The buyer may cancel it within one month. Ask to see the policy so you know what you are taking over.

To insure correctly, remember that liability cover works differently: it ends with the sale. Until you take out your own, you have no boat liability insurance. Check your new policy for the start date, the sum insured and whether a trailer is included.

Bought a boat? Compare what a policy must cover

Our guide to boat insurance explains liability, hull cover and the clauses worth reading before you sign.

Read the boat insurance guide

Related to buying a boat

Kleinanzeigen and willhaben are trademarks of their operators. NAMMERT has no connection with either portal.

This guide to buying a boat on classified ads is not legal advice. Last updated: November 2026.