A friend of mine sold his house, bought a 15 metre ketch, and announced over dinner that he had "got out of wealth tax". He was half right and half dangerously wrong, and the gap between the two halves is what this article is about. French wealth tax is one of those subjects where a confident pub answer can cost you a five-figure mistake, so it pays to know what the tax actually grips and what it lets slide.
The short version: the boat itself is not taxed. Becoming French-resident is the thing that changes the picture. Let me untangle the two.
What Replaced the Old Wealth Tax
Until 2018 France had the ISF, the Impot de Solidarite sur la Fortune, a broad wealth tax that swept up everything you owned: property, investments, cash, cars, jewellery, and yes, boats. That is the version your friend's older sailing mates probably remember and grumble about.
In 2018 it was scrapped and replaced with the IFI, the Impot sur la Fortune Immobiliere, the real-estate wealth tax. The change of name carries the whole point. The base shrank from "everything" to "immovable property" alone. Securities, bank balances, financial investments, and movable assets, which explicitly include furniture, cars, jewellery, and boats, all dropped out of the tax base. A yacht is movable property. Under the IFI it is simply not counted.
So your friend's instinct was sound. A boat is not a taxable asset for French wealth-tax purposes, however large or valuable she is. There is no annual levy on the hull's worth.
The 1.3 Million Threshold
The IFI only bites at all once your net taxable real estate crosses a threshold. For 2025 that threshold is 1.3 million euros, and it has held steady at that level. Below it you pay nothing. Cross it and the tax is calculated, somewhat awkwardly, from 800,000 euros upward through progressive bands, even though the entry point is 1.3 million.
Note the word "real estate". The 1.3 million is measured against your taxable property holdings, not your total wealth. If you own a 900,000 euro flat in Antibes and a 600,000 euro yacht, your IFI base is 900,000 euros, below the threshold, and the boat does not add to it. The same person under the old ISF would have been over the line and paying.
This is the genuinely useful planning point buried in my friend's boast. Converting property wealth into a boat does move money out of the IFI base. That is not tax evasion, it is just how the tax is drawn: it taxes land and buildings, not things that float.
A couple of edges are worth knowing. A berth you own outright, rather than rent, can be a different matter from the boat itself. Most visitors rent or licence a berth, which creates no asset at all, but a purchased mooring or a share in a port company is a different kind of property and could, in principle, sit on the property side of the ledger. It is a niche case, and the values involved are usually far below any threshold, but if you have bought a permanent berth in a marina rather than leasing one, mention it to an adviser. The boat stays exempt regardless; it is only the real-property elements around her that the IFI can reach.
There is also a presentation point that reassures nervous owners. Because the boat is movable property, you do not even declare her on an IFI return. There is no box for the yacht, no valuation to argue over, no surveyor's certificate required for the tax office. She is simply invisible to the IFI, the same way your car and your savings are. That absence is the cleanest proof that the boat is not in scope: the form does not ask, because the law does not care what she is worth.
Where the Trap Is
Here is the half he got wrong. The IFI is a residence tax in its reach. If you are tax-resident in France, the IFI applies to your worldwide real estate. If you are not resident, it applies only to your French real estate. So the question of whether you owe anything turns on residency, not on the boat.
A British or Dutch owner who keeps a boat in France, cruises six months a year, and remains tax-resident at home does not enter the French wealth-tax system at all unless they own French property over the threshold. But a foreigner who buys a boat, sells up at home, and spends enough time in France to become French-resident has just made their worldwide property holdings potentially visible to the IFI. The boat is still exempt. The chateau they kept back home is not.
Residency in France is decided by tests around where you live, where your economic interests sit, and how many days you spend in the country, and it can creep up on a liveaboard who never meant to relocate. The day-count and economic-centre questions overlap heavily with the Schengen 90/180 day rule for boaters, which governs how long a non-EU visitor can even stay, and with the broader social-charge and residency exposure I cover in tax residency risk on a long stay in France. Cross from visitor to resident and a stack of obligations switches on at once, of which wealth tax is only one.
What This Means in Practice
For the ordinary visiting cruiser the conclusion is clean. Your boat is not a wealth-tax asset. France will not send you an IFI demand because you own a yacht, regardless of her value, and a marina has no role in any of this. The only tax that attaches to the boat's flag is the annual francisation duty, which is a different thing entirely and only applies to French-registered craft, as I explain in the DAFN francisation tax explained for foreign owners.
For the would-be liveaboard or the owner thinking of relocating, the advice flips. Do not assume that living afloat keeps you outside the French tax net. The boat stays exempt, but residency drags in your worldwide property, your income, and French social charges. Before you sell the house and move aboard full time in French waters, get advice from a cross-border tax adviser, because the IFI threshold, the residency tests, and the timing of your move interact in ways that a dinner-table rule of thumb will not capture.
The One Number to Remember
If you take nothing else away, hold two facts together. Boats are not in the IFI base. The IFI threshold for 2025 is 1.3 million euros of real estate, and it only reaches your worldwide property if you are French-resident. Keep those straight and you will not repeat my friend's mistake, which was to treat a true statement about boats as if it were a true statement about himself.
It is worth saying plainly why this question even arises, because the confusion is historic rather than current. Under the old ISF, a valuable yacht genuinely was a wealth-tax asset, and the sailing world has a long memory. Owners who remember the pre-2018 rules still half-expect a demand based on the boat's value, and brokers occasionally trot out the old worry to nudge a sale. The rule changed seven years ago. A boat has not been a French wealth-tax asset since the ISF was abolished, and anyone telling you otherwise is working from an out-of-date script. The only live questions are your residency and your real property, neither of which has anything to do with the hull.
The hull floats free of wealth tax. You, your house, and your residency status may not. That distinction is worth a proper conversation with an adviser long before you cast off the lines for good, and it sits alongside the wider money picture in the annual running costs of a boat in France, which is the budget that actually decides whether a French-based life afloat adds up.
