Yes, you can insure a private submarine, but not through a standard tariff, only on request in the specialist marine insurance market. Germany has no nationwide compulsory insurance for private boats. For yachts, market overviews quote 1 to 5 percent of the value per year; two person submersibles usually cost USD 1 to 5 million.
No premiums are published for private submarines. These figures show the order of magnitude.
Example
Typical range
Purchase price, compact two person submersible
from about USD 632,800 before options
Purchase price, typical two person leisure submarine
about USD 1 to 5 million
Annual yacht premium as a guide
about 1 to 5 percent of the value
For comparison: liability for a small 20 hp motor boat in Germany
about EUR 35 to 44 a year before tax
Purchase prices from a market overview of July 2026,
yacht percentages from a US overview of November 2024,
boat liability from a German price example of July 2026.
Applying yacht percentages to submarines is a guide value from quoting practice;
a real quote depends on value, depth and use.
Worked example
Two person submarine worth USD 1 million, launched from a yacht in the Mediterranean
A rough estimate of the hull premium.
Value of the submersible
USD 1,000,000
Hull at 1 percent
USD 10,000 a year
Hull at 5 percent
USD 50,000 a year
Hull cover alone is roughly USD 10,000 to 50,000 a year, plus liability. This is an estimate based on yacht values, not a quote.
Is insurance compulsory for a private submarine?
Germany has no nationwide legal duty to insure private pleasure boats, and there is no separate rule for private submarines either. Many marinas and harbours do, however, ask for proof of liability insurance (Bootshaftpflicht) before giving you a berth.
If you use the submersible abroad, for example in the Mediterranean, insurance is often compulsory there. Check what the host country requires before every trip with the submarine.
Liability: what a submarine can damage
A submersible can hit divers, swimmers, boats on the surface or harbour structures. If you are found at fault, you are liable under general civil law without a cap, with your private assets if necessary.
For boats, liability sums of EUR 5 to 10 million for personal injury and property damage are recommended. There is no standard tariff for a submarine; insurers assess each submersible individually.
Hull cover for the submersible
Hull cover pays for damage to your own submarine. With prices from about USD 600,000 for compact models up to more than USD 40 million for deep diving subs, it is the most expensive part.
No premiums for submarines are published. Specialist marine underwriters base the premium on value and depth rating. As a rough guide, market overviews quote 1 to 5 percent of the value per year for yachts.
Submersible
Purchase price
Hull at 1 to 5 percent
Compact two person model
from about USD 633,000
about USD 6,300 to 31,600
Mid range leisure submarine
about USD 1 to 2 million
about USD 10,000 to 100,000
Deep diving submersible
over USD 20 million
individual quote
What to prepare for the request
There is no online form for a submarine. Have the manufacturer, year, value, rated depth, independent approval of the pressure hull, area of use and pilot training ready.
The more precise your details on maintenance, transport and mother ship, the better your chance of a quote. If the submersible is launched from a yacht, ask whether it can be added to the yacht policy.
When you do not need to insure a submarine yourself
If you only take a tourist submarine ride, you are a passenger. The operator insures the submersible; for your own accident risk, check your private accident and travel insurance for exclusions.
If you only charter a submarine, you do not need your own hull cover. Ask the owner whether their liability policy covers you as pilot.
Step by step
Clarify where the submarine will operate and what harbours and host countries require.
Collect documents on pressure hull, rated depth, maintenance and training.
Request liability with a high sum and hull cover at replacement value.
Check whether the submersible can be added to the yacht policy.
Read exclusions on depth, cruising area and pilots carefully.
Checklist
Liability sum of several million euros
Hull value covering the whole system including electronics
Rated depth named in the policy
All pilots named
Transport, launch and recovery from the mother ship included
Common mistakes
Assuming the yacht policy automatically covers the submersible
Diving deeper than agreed in the policy
Entering a foreign harbour without proof of liability cover
Setting the hull sum at the base price without options
Questions and answers
Frequently asked
Does a private submarine have to be insured in Germany?
There is no nationwide compulsory insurance for private boats.
Harbours and host countries may still require proof.
How much does submarine insurance cost?
No premiums are published.
As a rough guide, yachts cost 1 to 5 percent of their value per year.
Why does depth matter for insurance?
Specialist marine underwriters base the premium on the value and the rated depth of the submarine.
Am I insured on a submarine tour on holiday?
The operator is liable for damage caused by the submersible.
For your own accident risk, your private accident insurance counts.
Can I insure my submarine with my yacht?
Ask the yacht insurer.
If cover is possible, the submersible must be named expressly in the contract.
