# 2026 French Property Tax and Legal Changes: What Non‑Resident Owners Need to Know
More French property law changed in the eighteen months to mid‑2026 than in the previous decade. The 2026 Finance Act (*Loi de finances pour 2026*), enacted on 19 February 2026, introduced a package of fiscal measures that touches every non‑resident owner, from the second‑home declaration deadline to new rental investment schemes. At the same time, several landmark rulings by the Cour de cassation have reshaped the boundaries of seller liability, builder warranty and co‑ownership enforcement.
This article maps the most significant tax and legal developments that foreign owners — whether British, American, Australian or other non‑EU nationals — need to factor into their French property decisions in the second half of 2026.
## I. The 2026 Finance Act: Key Tax Changes for Non‑Resident Property Owners
### A. Social Charges, Wealth Tax and the Property Declaration Requirement
**Social charges on furnished rental income rise to 18.6%.** The Social Security Financing Act for 2026 (*LFSS 2026*, law no. 2025‑1403 of 30 December 2025) increased the CSG component on *revenus du patrimoine* from 9.2% to 10.6%. The headline rate for non‑resident landlords receiving furnished rental income (*location meublée non professionnelle*, or LMNP) therefore moved from 17.2% to **18.6%**, effective on 2025 income declared in 2026. Unfurnished rental income (*revenus fonciers*) and capital gains on property sales remain at the older **17.2%** rate. For an owner generating €10,000 of net furnished rental profit, the increase represents approximately **€140 per year** in additional social charges, recurring annually.
**The *Impôt sur la Fortune Immobilière* (IFI) — French wealth tax on real estate — remains unchanged.** A parliamentary proposal to broaden the tax into a “tax on unproductive wealth” that would have captured yachts, art and digital assets alongside real estate was withdrawn during the budget debate. The threshold stays at **€1.3 million** of net real estate value. Non‑residents continue to be liable for IFI only on their French‑situs property (not their worldwide holdings), which preserves a meaningful structural advantage for those whose main residence and investment properties lie outside France.
**The *Gérer mes biens immobiliers* (GMBI) declaration: the 1 July 2026 deadline.** All property owners — resident or not — must confirm or update the occupancy status of each French property via the *biens immobiliers* section of their personal space on impots.gouv.fr. The deadline is **1 July 2026**. Owners who do not yet have a *numéro fiscal* (French tax number) should apply for one well before that date. The declaration is **not annual for everyone**: it is required only if the occupancy status of a property changed between 2 January 2025 and 1 January 2026, if you failed to update it last year, or if you have never declared that property. Failure to file attracts a **€150 fine per property**. The information feeds directly into the calculation of *taxe d’habitation* on second homes and the vacant‑housing tax.
**Taxe foncière: modest base increase for 2026.** The annual nationwide revaluation coefficient applied to cadastral rental values is **+0.8%** for 2026, confirmed by INSEE on 28 November 2025 — a sharp drop from +1.7% in 2025 and +3.9% in 2024. This figure is the floor. Each *commune* may still vote its own rate on top. Separately, a DGFiP verification campaign is updating “comfort elements” (running water, heating, bathrooms) missing from cadastral records that sometimes date to the 1970s, affecting an estimated 7.4 million dwellings at an average of roughly €63 per dwelling. The broader cadastral‑value reform has been postponed by three years: the new values will now feed into the 2031 tax bases rather than 2028, determined as of 1 January 2028.
### B. Vacant Housing Taxes, Capital Gains and the New Jeanbrun Investment Regime
**A unified vacant‑housing tax from 2027.** Starting in 2027, the current dual system — the annual tax on vacant dwellings (*taxe annuelle sur les logements vacants*, TLV) and the council tax on vacant dwellings (*taxe d’habitation sur les logements vacants*, THLV) — is replaced by a single **taxe sur les locaux d’habitation vacants**. The new tax is payable on dwellings vacant on 1 January of the tax year, provided they have been unoccupied for at least **one year** in a *zone tendue* (a municipality with a significant housing supply/demand imbalance) or **two years** outside such zones.
The rates are steep. For vacant dwellings in a *zone tendue*, the tax rate is **17% to 30%** in the first year of taxation and **34% to 60%** from the second year onwards, all levied on the property’s cadastral rental value. Outside *zone tendue*, the tax is optional for municipalities, with a maximum rate of 50%. A foreign owner with a Paris pied‑à‑terre that remains empty for a calendar year should expect a significant bill arising from this regime, and should seek to either occupy the property, let it, or sell it before the 2027 entry‑into‑force.
**Capital gains: the *amortissement* recapture for furnished‑letting sellers.** One of the most consequential changes for investors selling furnished property was introduced by the 2025 Finance Act (article 84, confirmed by *Réponse Mette*, QE no. 10097, JOAN 24 March 2026). For sales completed on or after **15 February 2025**, depreciation (*amortissement*) previously deducted while renting the property under the *régime réel* is now **subtracted from the acquisition price** when calculating the taxable capital gain. Depreciation taken before 2025 is also caught.
The gain remains taxed under the private capital‑gains regime: **19% income tax + 17.2% social charges = 36.2%** before allowances. If an owner deducted €80,000 of depreciation over the holding period, the taxable gain rises by that same €80,000, adding approximately **€29,000** in tax — though the holding‑period taper survives: full income‑tax exemption at 22 years and full social‑charge exemption at 30 years.
**New *statut du bailleur privé* (dispositif Jeanbrun): an amortisation break for unfurnished rentals.** The feared abolition of LMNP amortisation did not occur. Instead, the 2026 Finance Act created a new “private landlord” status available for acquisitions (or building permits obtained) between 21 February 2026 and 31 December 2028. An eligible landlord may amortise up to **80% of the property’s value** against rental income over a minimum commitment period of 9 years, with annual amortisation rates of 3.5% to 5.5% for new‑build and 3% to 4% for renovated properties, capped at **€8,000 per year per property** (raised to €10,000 for social‑rental and €12,000 for very‑social‑rental use, with a limit of two properties per taxpayer). The property must be rented unfurnished as a primary residence, with the rent capped at approximately 15% below market rates and the lease commencing within 12 months of completion or acquisition. Non‑residents qualify, provided they have French‑source rental income against which to apply the deduction.
**Transfer duties (DMTO): departmental rate now up to 5%.** Under the 2025 Finance Act, *départements* may raise their share of transfer duty from 4.50% to a maximum of 5.00% for deeds signed between 1 April 2025 and 31 March 2028. As of 2026, **88 of 101 départements** apply the 5.00% rate, pushing the global notaire‑fee percentage on existing property (*ancien*) from approximately 5.81% to 6.32%. On a €400,000 resale purchase, the extra 0.5‑point adds approximately €2,000. First‑time buyers who have not owned a principal residence in the preceding two years are exempt from the surcharge. New‑build purchases (VEFA) are unaffected.
## II. Protecting Your French Property: Recent Case Law Shaping the Legal Landscape
### A. Hidden Defects, Seller Disclosure and the Right to Cancel a Sale
The French Civil Code provides one of the most powerful remedies available to a purchaser: the guarantee against hidden defects (*garantie des vices cachés*). Article 1641 states:
> « Le vendeur est tenu de la garantie à raison des défauts cachés de la chose vendue qui la rendent impropre à l’usage auquel on la destine, ou qui diminuent tellement cet usage que l’acheteur ne l’aurait pas acquise, ou n’en aurait donné qu’un moindre prix, s’il les avait connus. »
In practical terms: the seller must warrant the property against hidden defects that make it unfit for its intended use, or that would have caused the buyer either not to purchase it or to pay a lower price.
Article 1642 sets an important boundary: « Le vendeur n’est pas tenu des vices apparents et dont l’acheteur a pu se convaincre lui‑même. » The seller is not liable for defects that were visible and that the buyer could have discovered through a reasonable inspection. A foreign buyer who visits a property twice before signing and notices nothing unusual about the wall coverings does not necessarily lose the protection of Article 1641: the Cour de cassation has made it clear that the question is whether the buyer could have perceived not just the symptom (wrinkled wallpaper) but the underlying structural defect.
A decision of the Third Civil Chamber on **21 December 2023 (Cass. 3e civ., 21 Dec 2023, no. 22‑21.518)** illustrates these dynamics. The buyer of a house discovered fissures and cracks after removing wallpaper that had concealed them. The sale contract contained a clause excluding the seller’s warranty for hidden defects — a common provision in French property transactions between private individuals. The Court of Appeal had enforced that clause because the seller, a non‑professional who had inherited the property only six months before signing the sale mandate and had never lived there, was held not to have known of the structural disorder. The Cour de cassation upheld that finding on the *vices cachés* claim. However, it quashed the same judgment for a different reason: the Court of Appeal had failed to consider whether the simple mention of a “grenier” (attic) in the sale deed implied that the attic was usable — and whether the seller’s delivery obligation under Article 1602 of the Civil Code had therefore been breached, since that article provides that **any obscure or ambiguous clause is interpreted against the seller**.
The practical lesson is twofold: a seller who is genuinely unaware of a hidden defect may escape liability under a valid exclusion clause, but the obligation to deliver conforming property is broader and does not depend on the seller’s knowledge.
An action under the *vices cachés* regime must be brought within a strict time limit. Article 1648 of the Civil Code provides:
> « L’action résultant des vices rédhibitoires doit être intentée par l’acquéreur dans un délai de deux ans à compter de la découverte du vice. »
The two‑year window runs from the date the buyer discovered the defect, not the date of sale. A buyer who notices structural issues in the third year of ownership may still be within time. This rule is critical for foreign owners who visit irregularly and may not observe a defect until a later stay.
### B. Builder Liability, Energy Performance and Co‑Ownership Disputes
**The *garantie décennale*: a major shift in the scope of builder liability.** The ten‑year builder warranty under Article 1792 of the Civil Code holds any *constructeur* strictly liable to the owner for damage that compromises the solidity of the work or renders it unfit for its purpose. The scope of that warranty was significantly recalibrated by the Cour de cassation in a decision published in the Bulletin and the Annual Report: **Cass. 3e civ., 21 Mar 2024, no. 22‑18.694**.
The Court explained that since 2017 it had extended the *garantie décennale* to cover an element of equipment — even one merely added to an existing building — if the disorder affecting the equipment rendered the entire work unfit for its purpose. The 2024 ruling **reversed that line of authority**. The Court held that an element of equipment installed by replacement or addition to an existing building does **not** constitute an *ouvrage* (a “work”) and therefore falls **neither under the *garantie décennale* nor the *garantie biennale de bon fonctionnement***, whatever the gravity of the resulting damage. Instead, such a claim is governed by the ordinary law of contractual liability, which is not subject to the compulsory builder’s insurance regime.
The reasoning was candid: despite the earlier extension, the intended protection had not materialised because installers of such equipment do not subscribe to compulsory builder’s insurance, and the owners had access to other insurance cover anyway. For a foreign buyer acquiring a renovated French property, this ruling means that a defective retrofit — a fireplace insert, a heat pump, photovoltaic panels bolted onto a barn roof — cannot be pursued under the *garantie décennale* against the installer. The installer may still be sued under the ordinary law of contract and tort, but the automatic ten‑year cover and the *assurance dommages‑ouvrage* that normally accompanies it will be unavailable.
**The *garantie décennale* and energy performance: a high threshold for liability.** A separate ruling shows that the *garantie décennale* is not automatically engaged by poor thermal insulation. In **Cass. 3e civ., 23 Oct 2025, no. 23‑18.771**, the seller of a house he had partly built was sued by the buyers over inadequate insulation that made certain rooms unusable in winter “without incurring significant energy costs.” The Court of Appeal had found the seller liable under the *garantie décennale* on the basis of the *impropriété à destination* (unfitness for purpose). The Cour de cassation quashed that finding, holding that under Article L. 111‑13‑1 of the Construction and Housing Code, **unfitness for purpose based on energy performance requires proof that the defects lead to energy overconsumption allowing use of the building only at an exorbitant cost**. The lower court had failed to make that finding. An owner seeking to recover the cost of reinsulating a French holiday home from the original builder should be aware that the legal threshold is higher than it may appear: not every cold room or high heating bill triggers the ten‑year warranty.
**Co‑ownership charges: the syndicat’s power to recover arrears from absent owners.** Two recent decisions confirm the robust tools available to a *syndicat des copropriétaires* (co‑ownership association) when a lot owner — including a foreign non‑resident — falls behind on charges. On **16 April 2026 (Cass. 3e civ., 16 Apr 2026, no. 24‑21.820)**, the Cour de cassation validated a judgment ordering a copropriétaire to pay **€1,275** in outstanding charges plus **€300** in damages to the syndicat. On **9 July 2026 (Cass. 3e civ., 9 Jul 2026, no. 24‑21.792)**, published in the Bulletin, the Court confirmed that a *syndicat* acting through its provisional administrator could recover unpaid charges through legal proceedings, even when the governance of the co‑ownership itself was in difficulty. The amounts at stake in these cases — from a few thousand to nearly €40,000 in some related judgments — show that the French courts treat co‑ownership debt as a serious and enforceable obligation. A foreign owner who returns to a locked apartment or a court summons after a year away will find the French legal system unforgiving on this point.
**The *réparation intégrale* principle: the right to refuse a repair in kind.** Another important rule was reaffirmed in **Cass. 3e civ., 16 Jan 2025, no. 23‑17.265**, published in the Bulletin. The Court held, under Article 1792 of the Civil Code, that **a builder cannot impose a repair in kind on a victim of construction defects**. If the owner — even a foreign owner — opposes the specific repair method proposed by the builder, the court may not order that repair to be carried out by that same builder. The only remedy the owner cannot be forced to accept is a repair that is not performed or assured by a contractor of the owner’s choosing. This principle was cited alongside the need to properly assess whether condensation in an agricultural building rendered it unfit for its intended use of grain storage, which the Court of Appeal had failed to examine.
## Conclusion
The 2026 reforms represent more than incremental adjustments. The combination of a raised social‑charge rate, a new vacant‑housing tax regime effective from 2027, the amortisation recapture on furnished sales, and the recast of builder liability for equipment retrofits means that a non‑resident property owner’s legal and fiscal position has moved materially from where it stood in early 2024. The regulatory environment rewards vigilance: filing the GMBI declaration by 1 July 2026, understanding which départemental DMTO rate applies, and knowing when the *garantie décennale* does — and does not — attach are no longer optional for an owner who wishes to avoid surprise liabilities. In every case, a current reading of the rules, verified against the text of the *Loi de finances* and the most recent Cour de cassation rulings, is the only safe basis for decisions with financial consequences.
If you are buying, selling or renovating property in France as a non‑resident and need guidance on how these changes apply to your specific situation, our team at Kohen Avocats can assist you. We routinely advise English‑speaking clients on French real estate litigation, tax structuring and co‑ownership disputes from our Paris office.