France-Luxembourg Tax Treaty of March 20, 2018: Tax Residence, Cross-Border Workers, and Transnational Holding Structures
The protocol of November 7, 2022 on cross-border telework increased the treaty tolerance from 29 to 34 days and extended it to certain public-employment situations. In France, it was published by Decree No. 2025-382 of April 28, 2025. The chronology should therefore distinguish signature, approval and notification procedures, publication, and application to tax periods beginning on or after January 1, 2023 under the terms of the protocol.
Substantive Treaty Framework and Anti-BEPS Architecture
The treaty of March 20, 2018, product of several years of bilateral negotiation, precisely aligns with the most contemporary OECD standards concerning the treaty model; it furthermore incorporates all provisions of the Multilateral Instrument (MLI) to which France and Luxembourg have adhered, notably general and specific anti-abuse provisions, "principal purpose test" clauses and strengthened automatic information exchange. It should be noted that the treaty applies to natural and legal persons resident in one or both contracting States and covers virtually all income and property elements of a fiscal nature, except matters expressly excluded such as succession taxes or customs duties. The treaty text provides a cascade of anti-abuse provisions designed to prevent abusive use of treaty benefits: a general Principal Purpose Test (under which treaty benefits are denied if a principal purpose of an arrangement or transaction is to obtain tax benefits), specific anti-abuse clauses concerning distribution of dividends, interest and royalties, and a strengthened mechanism for documentation and information exchange.
The protocol of November 7, 2022, formally denominated the Additional Protocol to the Treaty, substantially modifies the cross-border worker regime by increasing the telework tolerance from 29 to 34 days annually. The presentation must distinguish signature, approval and notification procedures, French publication by Decree No. 2025-382 of 28 April 2025, and application to tax periods beginning on or after 1 January 2023 under the terms of the protocol. The practical calculation rules are addressed by the mutual agreement of 1 July 2023.
Tax Residence and Hierarchical Tie-Breaker Criteria
Article 4 of the 2018 treaty reproduces with precision the standard OECD tax residence criteria applicable when a natural person is situated in double residence under the domestic law of both contracting States. The tie-breaker rule operates successively: first, the permanent home available, apprehended substantively rather than formally (it is not merely property ownership but identification of the taxpayer's habitual residence, place of daily life, family situation); second, the center of vital interests, a federating concept encompassing the totality of personal and financial circumstances (actual seat of principal professional activity, family situation, significance of property, cultural and social relationships); third, the habitual residence, considered in terms of days actually and habitually (repeatedly and regularly) spent in each State; fourth, the nationality of the taxpayer.
For cross-border workers residing in France and working in Luxembourg, the first two criteria carry decisive practical preponderance. A taxpayer maintaining principal home in France, with family in France, and formally exercising substantial management or direction activity in France (even if physically working most days in Luxembourg) clearly remains a French resident. Conversely, Luxembourg and French tax authorities may contest the French residence of someone who has transferred home to Luxembourg, settled family in Luxembourg City, acquired immovable and social connections in Luxembourg, even if formally retaining mandates or work contracts in France: in that case, the center of vital interests shifts to Luxembourg and results in residence requalification.
Employment Income Regime: Article 14 and 34-Day Telework Tolerance
Article 14 of the treaty governs employment income. The general rule is that salaries and similar remuneration are taxable in the State where the employment is physically exercised, subject to the treaty exceptions that may apply. A French resident employed by a Luxembourg employer is therefore generally taxable in Luxembourg for the days actually worked in Luxembourg, with France eliminating double taxation under the treaty mechanism.
The France-Luxembourg mechanism should not be described as a stand-alone cross-border-worker clause based on weekly return home. The telework tolerance derives from point 3 of the protocol to the treaty, as amended by the protocol of 7 November 2022: for the purposes of the last sentence of Article 14(1), a resident of one contracting State who exercises employment in the other State may be physically present in the State of residence or in a third State, to exercise that employment, within a limit of 34 days per taxable period, without those days ceasing to be treated as exercised in the State where the employer is situated.
Where telework from France does not exceed 34 days inclusive, those days are therefore treated, for treaty purposes, as days worked in Luxembourg and remain taxable in the employer-State. If the threshold is exceeded, the analysis must be recomputed under the treaty, the protocol, applicable mutual agreements and the actual allocation of working days; it should not be stated mechanically that only the excess days are taxable in France without checking the relevant period and counting rules.
Taxation of Director, Manager and Administrator Compensation for Corporations
Compensation paid for management or direction of a Luxembourg entity (LLC, EURL, partnership, Corporation) falls under a regime depending on its formal qualification. Management compensation or member-manager salary generally remains taxable in the State where management activity is exercised (Luxembourg) under the regime applicable to professional income, with application of the French tax credit if the recipient is a French resident. Directors' fees or administrator compensation, whether paid as fixed sums or profit participation, also falls within the source State's taxing right (Luxembourg). Consequently, a French administrator of a Luxembourg holding or operational company is taxable in Luxembourg on directors' fees, with the French tax credit as a French resident.
The 2018 treaty nevertheless contains a general anti-abuse clause (Principal Purpose Test) whose scope deserves emphasis: if a principal purpose of an arrangement or transaction consists in obtaining a tax benefit under the treaty, tax authorities may refuse application of the treaty benefits in question. This clause applies particularly to Luxembourg holdings lacking genuine economic substance. A purely passive holding, devoid of permanent premises, personnel, effective management and direction, where decisions and substantive direction occur in France, will not benefit from reduced withholding tax rates on dividends or interest if the primary arrangement purpose consists in obtaining tax benefits. The French tax authority is particularly attentive to this issue during tax examinations, and several adjustments have concerned qualification of "beneficial owner" status and substance of Luxembourg holdings.
Dividends, Interest, Royalties: Reduced Rates and Eligibility Conditions
Article 10 of the treaty governs dividends paid by a corporation resident of one State to a resident of the other. Under the convention of 20 March 2018, dividends are generally subject to a withholding tax on amounts paid by the source State. An exemption (0% withholding) applies where the beneficial owner is a company holding directly at least 5% of the capital of the distributing company for an uninterrupted period of 365 days. The parent-subsidiary directive (Directive 2011/96/EU) provides a separate and independent exemption mechanism that should not be conflated with the treaty provisions. The applicable rates and conditions for any withholding should be verified against the current treaty text and administrative commentary, with particular attention to the beneficial owner requirement and the conditions for exemption treatment.
Article 11 governs interest, meaning all income flowing from receivables of any kind, including interest assimilated under each State's tax qualification. Under the France-Luxembourg treaty of 20 March 2018, interest arising in one contracting State and paid to a resident of the other contracting State is taxable only in that other State. The treaty therefore does not provide, for ordinary interest, a 10% source-State withholding tax. An exception must only be reserved where the debt-claim generating the interest is effectively connected with a permanent establishment situated in the source State; in that case, the business-profits article applies.
Article 12 addresses royalties, meaning payments for use or permission to use patents, trademarks, industrial processes, information regarding scientific experience, and technical assistance. Royalties remain taxable in the State of residence of the beneficiary, but the source State may levy withholding limited to 5% of gross amounts, a particularly favorable rate reflecting the intangible nature of the payments involved. However, technical assistance royalties benefit from the reduced regime only if they are substantial and correspond to genuine provision of services or know-how, not simple generic advice or facade administrative services.
Double taxation elimination operates systematically through a tax credit granted in the beneficiary's State of residence, a mechanism complemented by application of articles 23 A and 23 B of the OECD model, whose terms the treaty substantially adopts.
Securities Gains and Real Property Gains: Allocation of Taxing Rights
Article 13 of the treaty concerns gains realized upon disposition of business rights, shares and partnership interests. The convention provides for specific rules regarding gains from the alienation of substantial participations, subject to conditions defined in the treaty text. The general regime allocates taxing rights on securities gains to the State of residence of the seller; however, the convention provides for specific rules regarding gains from the alienation of substantial participations. The applicable thresholds and holding periods should be verified against the specific provisions of the treaty, and any potential concurrent taxation in both the source and residence States requires careful analysis. The tax credit mechanism or the mutual agreement procedure of article 24 may be used to manage any residual double taxation risk.
Article 6 of the treaty reserves to the State of property location the right to tax real estate income (rental income from immovable property situated in Luxembourg) and real estate gains realized upon disposition of immovable property. A French resident owning commercial or residential real estate in Luxembourg receives rental income taxable in Luxembourg under applicable local law; the same applies for real property gain upon sale of such property. The State of residence grants a tax credit eliminating double taxation to the French resident.
Articulation with EU Law and Practical Application
The France-Luxembourg treaty articulates with all applicable European Union tax law, notably: the revised parent-subsidiary directive (2011/96/EU as amended), exempting (or substantially reducing withholding tax on) dividends distributed between parent and subsidiary companies resident in EU Member States satisfying certain minimum participation and continuity conditions; the interest-royalties directive (2003/49/CE), exempting interest and royalties circulating between related enterprises established in different Member States; all BEPS and anti-abuse directives (notably the general anti-abuse directive, strengthened information exchange, banking secrecy directive). The treaty takes legal priority over these directives in case of direct conflict, but substantially incorporates their principles and operates in de facto harmony with the EU's normative framework.
Furthermore, it should be noted that our firm assists French taxpayers with Luxembourg connections in: structuring Luxembourg corporations and holdings with demonstration of genuine economic substance; documenting treaty benefits (tax residence certificates, substance control schedules, Principal Purpose Test analysis); optimizing flows of dividends, interest and royalties circulating between France-Luxembourg entities; planning disposition of participations regarding capital gains and substantial participation rules; managing disputes with French tax authorities concerning treaty application or qualification of tax benefits. We possess complete expertise of the MLI and BEPS measures applicable to contemporary cross-border France-Luxembourg arrangements.