What's the risk of owning a yacht?

What's the risk of owning a yacht?

A yacht is sold as escape: open water, no fixed address, the freedom to leave. The costs of weather, depreciation, fuel and crew are real. Length, gross tonnage and the identity of the beneficial owner determine which rules apply to a yacht.

Each of those is knowable before a contract is signed. Which authorities take an interest in a yacht, customs, labour inspectors and sanctions enforcement among them, turns less on how the boat sails than on two measurements and, since 2022, a name.

The two measurements come first. Length decides which rulebook the boat falls under, and volume decides what obeying that rulebook costs. The threshold that turns a pleasure craft into something close to a merchant ship sits at 24 metres, a line taken from the 1966 International Convention on Load Lines.

Since 2022, sanctions enforcement has made who stands behind the owning company the sharpest risk in the asset class, and a yacht can be detained over an owner who was never designated. This is the question taken one size at a time: a tape measure, a tonnage certificate and a company register.

Below the line a boat, above it a small ship

That 24-metre line is worth pausing on, because everything else hangs off it. Below it, a boat answers to little more than local safety rules and the competence of whoever is steering it. At 24 metres the same hull crosses into a commercial-grade legal regime, and every threshold above adds crew law, safety management, security planning and cost. The answer genuinely differs at 23 metres and at 25.

And the line was not drawn by the yacht trade. It descends from the International Convention on Load Lines, adopted on 5 April 1966 and written for merchant ships. The yacht codes borrow the convention's metric, so the trigger is 24 metres of load line length rather than 24 metres measured alongside the dock, and a hull that looks a little over 24 metres in the marina can sit on either side of the regime.

Note. Three of these four boundaries are trade usage and can be argued with. Only 24 metres has legal force, which is why a boat one metre either side of it is a different proposition rather than a slightly bigger one.

Above the line, volume takes over from length

Length gets a yacht into the regime; gross tonnage decides what membership costs. Gross tonnage measures enclosed volume rather than weight, so two hulls of one length can sit under different rulebooks while looking identical from the quay.

The 500-tonne step is the expensive one. It brings full SOLAS equipment, a designated person ashore under the ISM Code and generally an extra engineer, which one naval architect put at about USD 5 million on the build and USD 150,000 to 160,000 a year to run. Designers answer by drawing to the threshold and stopping: in Boat International's 2026 order book, 932 yachts under construction sat below 500 gross tonnes, and 156 of those were aimed deliberately at the 499-tonne limit.

Note. The steps are not evenly spaced in cost. Everything up to 400 tonnes is paperwork; 500 is where a yacht acquires the safety, management and security apparatus of a merchant ship, and the bill that comes with it.

Under 24 metres: the boat that stays a boat

The defining feature of this tier is what does not reach it. A privately used boat under 24 metres sits outside the Red Ensign large-yacht code, the Maritime Labour Convention applies to yachts ordinarily engaged in commercial activities rather than to private use, and the ISPS security regime does not apply to small private craft at all. Crew becomes effectively mandatory only at about 25 metres, so an owner who skippers the boat escapes the line that dominates every tier above.

What does apply, applies to everyone. The COLREGs collision regulations bind all vessels with no exemption for length or tonnage, and under Article 91 of the United Nations Convention on the Law of the Sea a ship has the nationality of the state whose flag it is entitled to fly, while under Article 110 a warship may board a ship on the high seas that it has reasonable grounds to suspect is without nationality. The costs that surprise first-time owners arrive before the boat does: a pre-purchase survey priced per foot, roughly GBP 16 for a glass-fibre hull, and marina berths at EUR 400 to 800 per metre.

24 to 60 metres: the length at which a yacht acquires a payroll

At 24 metres the boat becomes a small ship, and the change is legal before it is financial. The Red Ensign Group Yacht Code and professional crewing begin here, and for a yacht engaged in commercial activities the Maritime Labour Convention 2006 sets binding minimums on wages, hours of rest, repatriation and medical care. In the Mediterranean it reaches further than owners expect, because a passage from Cannes to Monaco counts as an international voyage.

Crew is the line that changes the arithmetic. A captain earns roughly EUR 6,500 to 9,500 a month at 30 to 40 metres and EUR 8,000 to 13,000 at 40 to 50, and the classification societies impose their own rhythm on top: an annual survey, an intermediate survey and a five-yearly special survey. This is also where the fleet actually lives, since 63 per cent of the 6,174 yachts over 30 metres afloat in August 2025 measured 30 to 40 metres.

60 to 100 metres: an enterprise that happens to float

At this size the yacht is built rather than bought, and the crew bill reads like a small company's. Full-custom construction accounts for about 65 per cent of yachts in build between 61 and 75 metres and nearly 87 per cent of those above 76. A captain commands EUR 13,000 to 20,000 a month at 70 to 80 metres, and a full complement pushes the total crew budget past EUR 1 million a year.

The ISPS Code applies to commercially operated yachts of 500 gross tonnes and above on international voyages, and a yacht in scope must hold an International Ship Security Certificate and run a ship security plan. The order book, meanwhile, says where the money is going.

Note. The two bars are the same fleet at two moments. What is being built is weighted more than twice as heavily towards the largest hulls as what is already afloat, which is the clearest forward signal this market publishes about itself.

100 metres and over: the tier that attracts governments

At the top the market is a handful of relationships rather than a market. Boat International's 2025 order book recorded 25 yachts beyond 100 metres on order or in build, concentrated in three yards, Lurssen, Feadship and Royal Huisman, and perhaps 150 gigayachts exist at all. Even berthing is a specialist trade: Marina Port Vell in Barcelona offers 73 berths for yachts up to 190 metres.

Fuel is the visible cost and carbon regulation is not. A yacht of 90 metres and over burns roughly 400 to more than 800 litres an hour at displacement cruise, against Mediterranean marina diesel of EUR 1.55 to 1.85 a litre in spring 2026. The EU Emissions Trading System has covered ships of 5,000 gross tonnage and above that carry passengers or cargo for commercial purposes since January 2024, and FuelEU Maritime applies the same commercial-transport test, so a privately operated pleasure yacht falls outside both regardless of tonnage.

Tax does not reward ownership, it prices it

Ownership confers no tax benefit by itself, and every relief that exists is conditional on behaviour rather than on paperwork. Import value-added tax on a yacht delivered inside the European Union is the largest single one-off charge, and it lands before the boat has been anywhere.

The relief most owners reach for collapses on use. Temporary Admission lets a yacht registered outside the European Union and owned by a non-resident cruise EU waters for up to 18 months without paying import VAT, provided the use stays genuinely private. It ends the moment the yacht is chartered to or used by an EU resident, the clock resets on each exit and re-entry, and an EU-resident owner qualifies for none of it.

Note. Four points of rate spread is worth EUR 160,000 on a EUR 4 million yacht, decided by nothing more than which marina the handover happens in.

The flag is the cheapest decision an owner makes and the most consequential

Registration costs a rounding error and settles the law that follows the hull everywhere it goes. The Cayman Islands Shipping Registry charges an initial fee of USD 1,750 for pleasure vessels up to 400 gross tonnes, and a pleasure yacht under 24 metres can instead prepay a three-year term, registration and tonnage fees together, for USD 2,750.

Reputation among the registers is measured rather than asserted. The Paris Memorandum of Understanding ranks registers by their port-state-control detention record, and on the White List published on 1 July 2026, covering inspections from 2023 to 2025, the Cayman Islands ranks first of 69 flags with 299 inspections and no detentions, Malta 16th, the Isle of Man 17th, Bermuda 18th, the Marshall Islands 21st and the United Kingdom 24th. On that list these registers sit in the White List.

Note. Read the second column before the third. The tax treatment is what draws owners in, but the detention record is what determines how a yacht is treated in every port it enters, and on that list these registers sit in the White List.

Four ways to hold a yacht, and less privacy in each of them

Above 30 metres, holding a yacht in a personal name is the exception. Roughly 75 per cent of yachts over that length are owned through one or more corporate entities, and a yacht held personally forms part of its owner's taxable estate and can meet forced-heirship rules in civil-law jurisdictions such as France and Spain.

The privacy that justified the structure is being legislated away. A Cayman yacht-owning company must keep a beneficial-ownership register naming anyone who holds 25 per cent or more of its shares or control, and the British Virgin Islands has, since 1 April 2026, let third parties with a legitimate interest apply to see ownership data for USD 75 a request.

Note. The four columns trade the same four things against each other, and no column wins on all of them. Which one is right follows from where the owner is taxed and how the boat will be used, not from how much privacy it appears to offer.

Since 2022 the question has been who owns the hull, not how long it is

Sanctions enforcement has made ownership structure the sharpest legal risk in the asset class, and the European Union has immobilised around EUR 210 billion of Russian central bank assets within its jurisdiction.

The case that redrew the boundary concerned an owner who was never listed. The yacht Phi was detained in London on a decision of the Secretary of State for Transport first taken on 28 March 2022, and the United Kingdom Supreme Court unanimously upheld that detention on 29 July 2025 as a proportionate interference with property rights, on the reasoning that denying charter income maintains economic pressure. A detained yacht is not a dormant one either: when the United States Treasury designated the Dilbar it put the vessel's running cost on the record at about USD 60 million a year.

Note. Where length and value are on the record they run from 106 to 156 metres and from USD 300 million to USD 735 million, and neither predicted the outcome. In every case the deciding fact was who stood behind the owning company.

What the answer comes down to

Three thresholds decide the regulatory position of a yacht, and all are knowable before anyone signs anything: length decides which rulebook applies, volume decides what that rulebook costs, and ownership decides whether the boat stays in its owner's hands at all.

What the thresholds do not settle is the money, and the money is where the surprises live. A yacht is an illiquid asset that happens to float: yachts asking EUR 40 million or more were 7 per cent of 2025 brokerage sales by volume but 52 per cent of market value, so the pool of buyers thins sharply as the hull lengthens. What ownership costs each year as a share of what the yacht is worth, what a decade of it comes to, how quickly the value falls away and how long the boat sits on the market at the end are all measurable, and they are the four things this summary holds back.

The edition measures them. It answers the question tier by tier and across ten dimensions, from 144 sources, with every legal, tax and regulatory claim cited to the instrument itself rather than to a broker's guide.

What this summary does not show

• Running cost as a share of value, by size tier
• Ten-year total cost of ownership
• Depreciation and resale retention curves
• Time on market at resale