Many foreign families own their French house through split ownership: a surviving parent holds the usufruit (usufruct, the lifelong right to live in the property or collect its rents), while the children hold only the nue-propriété (bare ownership). This arrangement, called démembrement (split ownership), is extremely common after the death of one parent, after a gift with reservation of usufruct, or when a seller transfers a home while keeping the right to live there. It is also one of the most misunderstood situations under the French impôt sur la fortune immobilière (real-estate wealth tax, known as IFI). Each year, usufructuaries discover that the tax office assesses them on the full market value of the property, even though they own neither the walls in full nor the right to sell without the bare owners. Bare owners, symmetrically, assume they owe nothing and sometimes forget to check whether their own French assets cross the threshold on their side.
This guide explains, for non-resident and foreign owners, exactly how IFI applies when a French property is split between usufruct and bare ownership: who is taxed and on what amount, how the value is assessed, which debts can still be deducted, how shares in a property company are treated, and how the 2 April 2025 ruling of the Cour de cassation on the allocation of debts between usufructuary and bare owner fits into the picture. It signals the tax position without giving tailored tax advice: rates, reliefs and personal situations vary, and any filing should be checked against the current version of the cited texts.
I. The usufructuary is taxed on the full value: who falls inside IFI and why split ownership does not divide the bill
A. Non-resident owners, the 1.3 million euro threshold and the assets that count
IFI is an annual tax on net real-estate wealth. The instituting provision states: « Il est institué un impôt annuel sur les actifs immobiliers désigné sous le nom d’impôt sur la fortune immobilière. » In other words, Parliament created a yearly tax levied on specified real-estate assets, and that tax is entirely separate from income tax, capital gains tax on sale, and the local property taxes. A family that already pays French income tax on rents or that has paid transfer taxes on purchase must still test its IFI position every year on 1 January.
For readers who live outside France, the territorial rule is narrower than for French residents but still catches a large number of second-home owners. Individuals who do not have their tax domicile in France are taxable on French-situs real property and on shares representing French real property, while French residents are taxable on worldwide real-estate assets above the threshold. Newcomers who settle in France after at least five years of non-residence benefit from a temporary rule: for the first five years they are taxed only like non-residents, on French assets. After that period, their foreign real estate enters the base as well. A British, American or Gulf-based family that owns only a Paris apartment or a Provençal villa is therefore tested exclusively on those French assets, whereas a family that moves to Paris permanently must calendar the end of the five-year window, because a London house or a Dubai apartment can suddenly inflate the taxable base.
The trigger is a net taxable amount above 1,300,000 euros per tax household, assessed on 1 January of the tax year. The base provision states: « L’assiette de l’impôt sur la fortune immobilière est constituée par la valeur nette au 1er janvier de l’année » This means the taxable base is the net value of the assets on the first day of the year: gross market values minus debts that the statute allows to be deducted. Spouses, registered partners and de facto cohabiting partners are taxed jointly, and the property of minor children under their legal administration is added. Two unmarried buyers who simply co-own a villa are each tested on their own share, but a married couple is tested on the household total, which pushes far more households over the threshold than each spouse expects. Debts reduce the base only if they existed on 1 January, were taken on to acquire, repair, improve or build taxable assets, and are genuinely borne by the taxpayer, as detailed in Section II below.
What counts goes well beyond bricks and mortar held directly. The statute covers all buildings and real rights, plus shares in companies and entities established in France or abroad, but only for the fraction of their value that represents taxable real property held directly or indirectly. A non-resident who holds a Paris apartment through a société civile immobilière (non-trading French property company, usually shortened to SCI) is therefore taxable on the fraction of the share value that mirrors the apartment, after applying the ratio between the real-estate assets and the total assets of the company. Shares in companies whose business is industrial, commercial, craft, agricultural or professional are left out where the taxpayer holds less than 10 percent of the capital and voting rights, alone or with the household. For most foreign families, however, the family SCI is a pure property vehicle, so the exemption for operating companies does not help and the shares fall squarely into the base. Furnished-rental activity, short-term letting and the operating-company boundary raise separate questions that depend on the facts of each structure and should be examined file by file rather than assumed.
B. Article 968 of the Tax Code: the usufructuary bears the whole, with only three statutory exits
The central trap for split ownership is set by a single sentence. Article 968 of the General Tax Code provides: « Les actifs mentionnés à l’article 965 grevés d’un usufruit, d’un droit d’habitation ou d’un droit d’usage accordé à titre personnel sont compris dans le patrimoine de l’usufruitier ou du titulaire du droit pour leur valeur en pleine propriété. » In plain terms, property burdened with a usufruct, a right of habitation or a personal right of use is included in the estate of the usufructuary or right-holder for its full-ownership value. The usufructuary is therefore assessed as if he or she owned 100 percent of the property, while the bare owner includes nothing for that same property in his or her own IFI base. A widowed mother who holds the usufruct of a 2 million euro villa in the Luberon is taxable on 2 million euros, even though she cannot sell the villa alone and even though the bare ownership belongs to her children. The children, for their part, disregard the villa entirely when testing their own threshold, which can be a genuine advantage for the younger generation but offers no relief to the parent who actually pays.
Only three narrowly drawn situations escape this full-value rule, and each time the value is then split between usufructuary and bare owner using the statutory scale of Article 669 of the Tax Code, which assigns each side a percentage of full ownership according to the age of the usufructuary. The first exception covers usufructs arising by operation of law for the surviving spouse, notably the surviving spouse’s option for the usufruct of the whole estate. The Civil Code provides: « Si l’époux prédécédé laisse des enfants ou descendants, le conjoint survivant recueille, à son choix, l’usufruit de la totalité des biens existants ou la propriété du quart des biens lorsque tous les enfants sont issus des deux époux et la propriété du quart en présence d’un ou plusieurs enfants qui ne sont pas issus des deux époux. » This means a surviving spouse with children can elect either the usufruct of everything or a quarter in full ownership, and only where the usufruct comes from these specific intestacy or reserved provisions, rather than from a gift between spouses or a will drafted differently, does the split valuation apply. Families should therefore check the exact legal source of the usufruct on the title deeds and the succession documents: a usufruct created by a testamentary gift or by a contractual arrangement does not open the same door, and the distinction turns entirely on the cited articles.
The second exception concerns the split that results from a sale in which the seller reserved the usufruct, the use or the habitation right for himself, provided the buyer is not one of the persons listed as deemed intermediaries. The classic case is parents who sell the family home to their children while reserving a lifelong right to live there, or an elderly owner who sells to an investor while staying in place. The third exception covers usufructs or use rights reserved by a donor who gave property to the State, a local authority, a public institution or a recognised public-interest association. Outside these three cases, the default rule is absolute: full value in the hands of the usufructuary. A usufruct created by a simple gift from parent to child with reservation, which is the most frequent family arrangement, falls under the default rule and not under an exception, so the parent-donor who kept the usufruct pays IFI on the entire property.
Civil-law principles confirm that the usufructuary is not a stranger to the debts of the estate, even though the tax computation follows its own special scale. The Civil Code states: « L’usufruitier, ou universel, ou à titre universel, doit contribuer avec le propriétaire au paiement des dettes ainsi qu’il suit » In other words, a general or universal usufructuary must contribute with the owner to the payment of debts under a defined mechanism. This matters because the IFI base is a net value: where a deductible loan financed the property, the question of who deducts what between usufructuary and bare owner becomes decisive, and it was settled for succession duties by the Cour de cassation in 2025, as examined in Section II. Foreign families should keep two ideas apart: the gross inclusion at full value under Article 968, which almost always applies, and the allocation of deductible debts, which follows the specific fiscal scale and the source of the split.
II. Valuing, deducting and defending the bill: market value, company shares, debts and court-tested remedies
A. Market value on 1 January, company shares, deductible loans and the rate scale
Every IFI figure starts from the valeur vénale (open-market value) of each asset on 1 January. The Cour de cassation has defined that value in a formula repeated across wealth-tax disputes: « la valeur vénale d’un immeuble correspond au prix qui pourrait en être obtenu par le jeu de l’offre et de la demande sur un marché réel, compte tenu de la situation de fait et de droit dans laquelle l’immeuble se trouve lors du fait générateur de l’impôt » This means the property must be priced as it actually stands on the valuation date, with its legal burdens and physical condition taken into account: an occupied villa, a lease in place, a right of way, poor condition or an outstanding planning dispute all belong in the reasoning. In that 27 March 2019 decision, the commercial chamber also approved a concrete comparison method, accepting terms of comparison drawn from sales in the same Paris arrondissement where address, year, building material, number of floors, terrace or garden and weighted floor area were documented for each year. For a foreign owner challenging an assessment, the lesson is practical: contest the valuation with documented sales of genuinely similar properties, addressing structure, condition, architectural and technical quality, and location, because a court will reject comparables selected only on construction date and materials. An isolated estate-agent estimate rarely suffices; notarial databases, published sale prices and a reasoned expert report carry far more weight.
One relief exists but helps only true main homes. The valuation article grants a 30 percent reduction on the market value of the building occupied as the owner’s principal residence: « un abattement de 30 % est effectué sur la valeur vénale réelle de l’immeuble lorsque celui-ci est occupé à titre de résidence principale par son propriétaire » In practice, a non-resident’s French second home never qualifies, and a family split across two countries must identify precisely which dwelling is the principal residence for the whole household, since only one building can benefit where taxation is joint. A Paris apartment used eight months a year by the family while the parents keep a house abroad will not automatically secure the relief; the administration examines where the household’s main life is organised. Where the relief does apply, it is taken before the rate scale is applied, so on a 2 million euro main home it removes 600,000 euros from the base, which frequently moves the taxpayer into a lower bracket or below the threshold altogether.
Shares in a family SCI are valued through the fractional method described in Section I, and the company’s own debts obey an anti-avoidance framework that foreign buyers often discover too late. Loans taken on by the company to buy an asset from a person who controls the company, or loans granted by the taxpayer or family members to the company to fund taxable assets, are disregarded in whole or in proportion to the holding. Back-to-back family financing, where parents lend to the SCI that buys the villa, therefore inflates the IFI base instead of reducing it, because the debt is neutralised while the property stays fully counted. Genuine third-party bank mortgages remain deductible in principle, subject to the amortisation mechanics for bullet and in-fine loans, but every intra-family loan should be reviewed before the 1 January snapshot. Families who refinanced through shareholder current accounts or vendor credit should take advice before filing, since re-characterisation risk sits exactly on these structures.
Personal deductible debts follow the same philosophy of strict connection to taxable assets. The statute lists acquisition costs, genuine repair and maintenance borne by the owner, improvement, construction, reconstruction and enlargement costs, certain property taxes other than those normally incumbent on the occupier, and the acquisition cost of taxable shares in proportion to the underlying real estate. Consumer credit, loans funding foreign assets that are outside a non-resident’s base, and debts owed to the taxpayer’s own minor children or deemed intermediaries are excluded. A recent 26 November 2025 ruling, published in the Bulletin, illustrates how strictly the courts police debts routed through relatives: the Cour de cassation held that « Selon l’article 773, 2°, alinéa 1er, du code général des impôts, dans sa rédaction applicable, ne sont pas déductibles les dettes consenties par le défunt au profit de ses héritiers ou de personnes interposées. » In that case, concerning succession duties and the former solidarity wealth tax, debts granted by the deceased to heirs or interposed persons, including through a legal entity treated as an interposed person, could not reduce the base. The Civil Code backs this approach by presuming certain relatives to be intermediaries: « Sont présumés personnes interposées, jusqu’à preuve contraire, les père et mère, les enfants et descendants, ainsi que l’époux de la personne incapable. » Translated into IFI practice, a loan from a parent to the family SCI, or a debt owed by the taxpayer to his own children, will be challenged or simply disallowed, and the taxpayer carries the burden of proving the arrangement is genuine.
Once the net base is settled, the rate scale of Article 977 of the General Tax Code applies by slices: nothing up to 800,000 euros, 0.50 percent between 800,000 and 1,300,000 euros, 0.70 percent up to 2,570,000 euros, 1 percent up to 5 million, 1.25 percent up to 10 million and 1.50 percent above, with a smoothing mechanism between 1.3 and 1.4 million euros to soften the threshold effect. Because the scale is progressive, the usufructuary taxed on full value under Article 968 climbs the brackets on the whole property, while the bare owner excludes it. On a 3 million euro villa held in split ownership with a 400,000 euro deductible bank loan allocated to the usufructuary, the taxable base of 2.6 million euros produces slicing across four brackets, and the difference between deducting the loan and losing it exceeds 2,000 euros of tax each year. Precision on valuation and debts is therefore not academic: each 100,000 euros of base in the top relevant slice costs 700 to 1,000 euros annually, every year, for as long as the ownership lasts.
B. Splitting debts between usufructuary and bare owner, and the practical path to challenge the assessment
The allocation of debts where ownership is split was clarified by the Cour de cassation on 2 April 2025. In a succession where the widow had taken the usufruct of the whole estate and the declaration had charged the entire liabilities to the son’s share, the tax office reassessed, and the Dijon Court of Appeal sided with the taxpayer on the ground that the usufructuary bears none of the succession liabilities. The commercial chamber quashed that reasoning and held that, absent an outright partition and where split rights burden an estate carrying a debt, the net share of each side must be fixed by apportioning the debt under the Article 669 scale: « Il résulte de la combinaison de ces textes, qu’en l’absence de partage pur et simple et lorsque l’actif de la succession, grevée d’une dette, a fait l’objet d’un démembrement des droits de propriété, la part nette revenant à l’usufruitier et au nu-propriétaire doit être fixée en répartissant cette dette selon les proportions prévues par l’article 669 du code général des impôts, lequel institue une règle fiscale spéciale de détermination de la valeur des parts successorales de l’usufruitier et du nu-propriétaire, en vue de leur imposition aux droits de mutation à titre gratuit. » In substance, where a debt encumbers split property, it is divided between usufructuary and bare owner in the same proportions the tax scale uses to value their respective rights. The Court grounded this shared contribution in the civil-law rule that co-heirs contribute to the debts of the succession in proportion to what each takes: « Les cohéritiers contribuent entre eux au paiement des dettes et charges de la succession, chacun dans la proportion de ce qu’il y prend. » In other words, heirs share the burden according to their take, and the fiscal scale supplies the measuring rod where rights are split.
For IFI purposes, the reasoning matters in two ways. First, it confirms that a deductible loan attached to split property is not loaded entirely onto the bare owner to shelter the usufructuary, nor ignored; it is apportioned by the age-based scale. A 70-year-old usufructuary and his bare-owner children therefore split the deductible mortgage in fixed statutory proportions, and each side applies its fraction to its own position: the usufructuary against the full value he declares, the bare owner against whatever else he holds. Second, it reminds families that succession-duty mechanics and wealth-tax mechanics, while distinct taxes, share valuation concepts, so positions taken in the succession declaration will be read back when IFI is reviewed. A family that allocated all debts to the children in the inheritance return and then has the surviving parent declare IFI on the full property value should expect the administration to compare the two filings. Consistency across the succession file, the IFI return and the SCI accounts is the single cheapest form of protection.
In practice, a foreign family facing an IFI bill on split property should work through a short sequence. First, identify the exact source of the usufruct on the title and succession deeds, because only the three statutory exceptions displace full-value taxation, and the surviving spouse’s intestacy option is the only one most families will ever meet. Second, freeze the valuation file on 1 January: notarial price databases for comparable sales nearby, written evidence of the property’s legal and physical state, lease terms if tenanted, and any planning or co-ownership burden that depresses market value. Third, list every loan with its lender, date, purpose and amortisation profile, and remove intra-family and self-financed debts that the statute neutralises, particularly loans between the SCI and its own shareholders. Fourth, compute the SCI fraction from real balance-sheet figures rather than from the share nominal value, because the ratio of real-estate assets to total assets is what the statute taxes. Fifth, file consistently and keep proof of dispatch, since the administration can review the return within the standard reassessment period and the burden of proving value and debt deductibility rests on the taxpayer once challenged.
Where the assessment still seems wrong, French procedure offers a structured remedy: an administrative claim (réclamation, the formal complaint to the tax office) seeking discharge or reduction, followed, if rejected or unanswered, by an appeal to the administrative or judicial court depending on the tax, with strict time limits running from the notice or the rejection decision. Valuation disputes turn on evidence, and the 2019 case law shows courts expect concrete comparable analysis rather than general assertions about the market. Debt disputes turn on documentation: loan agreements, bank statements proving the funds financed the taxable asset, amortisation schedules and proof the debt existed on 1 January and was genuinely borne by the declarant. Households that bought through an SCI should also bring the company accounts, the shareholder loan records and the computation of the representative fraction, because the office routinely asks for them. Throughout, the file should never mix succession-duty arguments with IFI arguments without checking that each text supports the point: the 2025 debt-allocation ruling concerns the measurement of net shares for transfer duties, and it is invoked here for its apportionment method, not as a direct IFI precedent.
Two pitfalls deserve emphasis for readers abroad. The first is assuming that a foreign will or trust arrangement reshapes French IFI treatment of the usufruct: the tax office applies French categories to French-situs property, and an English life interest or a common-law trust expectation must be translated into usufruct, bare ownership or full ownership before any conclusion is drawn. Misclassification is frequent and expensive, because declaring full value when only a bare-ownership fraction should be tested, or omitting an asset held through a foreign company whose fraction represents French property, creates either overpayment or exposure to penalties. The second pitfall is letting the SCI drift: shareholder current accounts that grow year after year, unrecorded improvements paid from personal funds, or a villa partially used for a professional activity without meeting the strict exemption conditions for business assets under Article 975 of the General Tax Code all complicate the 1 January picture. An annual thirty-minute review of the SCI balance sheet against the IFI categories costs little and prevents the slow accumulation of positions that become indefensible on audit. For tailored questions on holding structures, readers can consult the firm’s overview of its real-estate practice at Paris real-estate legal services before deciding how to organise or reorganise ownership.
Conclusion
Split ownership does not split the IFI bill: the usufructuary is assessed on the full market value of the French property, the bare owner disregards it, and only three narrow statutory exceptions displace that outcome in favour of the age-based scale. Around that core rule, everything depends on measurement: an open-market valuation anchored to documented comparable sales, a representative fraction honestly computed for SCI shares, deductible debts strictly tied to taxable assets and genuinely borne by the declarant, and an apportionment of those debts between usufructuary and bare owner that follows the fiscal scale rather than family convenience. The 2019 valuation ruling and the 2025 debt-allocation and intermediaries rulings give foreign families both the method and the warning: courts reward concrete evidence and punish artificial debt routing through relatives or controlled entities. Families who identify the source of their usufruct, freeze their valuation file each 1 January, clean intra-family financing and keep succession, company and IFI filings consistent will pay exactly what the statute requires, no more and, just as importantly, with far less risk of a reassessment. Where the amounts at stake justify it, a review before filing, organised around the texts and decisions cited above, is the most economical step in the entire process, and the firm’s real-estate team in Paris handles precisely these cross-border ownership files.