Almost every American buyer I work with arrives on the Riviera with a renovation in mind. Sometimes it is cosmetic: a kitchen reimagined, a bathroom brought up to California standards, a tired terrace transformed into an outdoor living room facing the sea. Sometimes it is structural: a 1970s villa in Super Cannes stripped back and rebuilt around light and volume. And almost every one of them asks me the same question over coffee: "Can I write this off?"
It is a reasonable question, and the honest answer is the most valuable one I can give you: it depends entirely on what you are doing with the property. France does allow certain renovation costs to reduce your tax exposure, but the rules are precise, and the difference between a deductible expense and a non-deductible one can amount to a great deal of money. Let me walk you through how I explain it to my clients.
First, a distinction the French take very seriously
French tax law draws a sharp line between three categories of work, and understanding this vocabulary is half the battle. The categories are roughly: maintenance and repair (entretien et réparation), improvement (amélioration), and construction, reconstruction, or enlargement (construction, reconstruction ou agrandissement).
Broadly speaking, repair and maintenance work — replacing a failing roof, repairing plumbing, repainting — tends to be treated most favorably for deductibility. Improvement work that adds a comfort or convenience to an existing structure without changing its footprint often qualifies too, particularly for residential use. But work that enlarges the property, adds new square meters, or effectively rebuilds it generally does not qualify as a deductible expense in the same way. Instead, those costs usually attach to the property itself and become relevant later, when you sell.
This is the single most common misunderstanding I see. Adding a wing or building a pool house feels like the biggest, most obvious "investment" in the property. But precisely because it creates something new rather than restoring something existing, it is often treated differently by the tax authorities than a like-for-like renovation.
The scenario that matters most: are you renting it out?
Here is the pivotal fact. In France, the ability to deduct renovation costs against your income is closely tied to whether the property generates rental income.
If you buy a villa in Mougins purely as a private residence or a second home that sits empty when you are in California, you generally cannot deduct your renovation costs against your income year to year, because there is no rental income to deduct them from. The costs are not lost — many of them can be added to your acquisition cost and reduce your eventual capital gains liability when you sell — but they do not produce an annual tax benefit.
If, on the other hand, you rent the property out — and a great many of my clients do, monetizing a Cannes or Cap d'Antibes villa during the festival season and the summer weeks they are not using it — the picture changes considerably. Rental income in France is taxable, and against that income you may be able to deduct qualifying repair, maintenance, and improvement expenses. Under the régime réel (the "real" tax regime, as opposed to the flat-rate micro regime), landlords can deduct a range of actual costs, and in some cases a renovation can generate a paper loss (a déficit foncier) that offsets other income within defined limits.
This is genuinely one of the most powerful, and most overlooked, tools available to an American who intends to let their Riviera property. Structured correctly, a major renovation on a rented villa can substantially reduce your French rental tax burden for several years. Structured carelessly, the same spending produces no benefit at all.
Furnished versus unfurnished changes everything again
To complicate matters usefully, France treats furnished rentals (location meublée) and unfurnished rentals (location nue) under different regimes, each with its own rules about how costs and even depreciation are handled. Most luxury Riviera rentals are furnished, which opens up its own set of possibilities — including, under the furnished-rental rules, forms of depreciation on the property and its fittings that simply do not exist for unfurnished lets. The mechanics here are specialized enough that I always send clients to a cross-border accountant before they commit to a strategy.
Energy-efficiency work: a category worth watching
France, like the rest of Europe, has been steadily tightening the rules around the energy performance of homes, and there has been a real appetite in policy for incentivizing energy-efficiency renovations. Work that improves insulation, heating systems, or overall energy performance has at various points attracted specific advantages, and it also protects the future value and rentability of your asset as energy-rating requirements tighten.
If your 1980s Cannes villa needs its systems modernized anyway, doing that work through the lens of energy performance is often smart on two fronts at once: the potential tax treatment, and the property's long-term marketability. I would not, however, buy a property because of an incentive — these programs evolve, and the specifics change from year to year.
Keep every invoice, and keep them French
Whatever your situation, one piece of advice is universal: documentation is everything. French tax authorities will expect proper invoices (factures) from registered French professionals, showing VAT and the nature of the work. Cash arrangements with an unregistered handyman, however tempting, leave you with nothing to deduct and no proof of your improved cost basis when you sell. I tell every client to treat their renovation paperwork with the same care they would give a stock portfolio's records.
This is also where using registered, insured French contractors matters beyond the tax question — their garantie décennale (ten-year structural guarantee) protects you as an owner in ways an informal arrangement never could.
The bicultural reality check
Having spent years living on both sides of the Atlantic, I can tell you the American instinct around "writing things off" does not map neatly onto the French system. In the US, buyers are used to a relatively aggressive, deduction-friendly mindset. France rewards a different discipline: precise categorization, meticulous paperwork, and choosing the right ownership and rental structure before the first wall comes down, not after.
The clients who save the most are invariably the ones who assembled their advisory team early — a notaire, a cross-border tax advisor, and an architect or maître d'œuvre who understands how the work will be classified. The renovation itself is the fun part. The structure around it is where the money is actually made or lost.
Please treat everything here as general orientation rather than advice for your specific situation. French tax rules are detailed, they change, and the right answer depends on how you hold the property, whether you rent it, and your own US tax position. Before you commit to a renovation budget, speak with a licensed French notaire and a qualified cross-border tax advisor who can model your exact circumstances. When you are ready to find the villa worth renovating in the first place, that conversation is one I am always happy to have.
