A Luxembourg holding company’s substance depends on what it actually does, who makes its decisions and the resources available to carry them out. A registered office, a local director or an annual board meeting does not, by itself, settle the analysis. Holding a stable investment has different needs from lending, managing acquisitions or supplying services.
These facts matter in several separate assessments. Luxembourg tax residence, access to a tax treaty and entitlement to an exemption each have their own conditions. A company can meet one set of conditions while failing another.
The company’s role determines the resources it needs
A SOPARFI, an ordinary company used to hold financial participations, may own one long-term investment or sit between a fund and several operating subsidiaries. Its legal form does not describe all the functions performed in that structure.
No general minimum headcount applies to a company solely holding participations. It still needs people able to understand its investment, consider distributions and fulfil its obligations. An acquisition vehicle taking on debt, providing guarantees and planning an exit needs the ability to assess those commitments and follow their consequences. The arrangements should develop as the activity changes.
The Court of Justice of the European Union rejected an automatic assumption that managing subsidiaries’ assets or receiving their income makes a holding artificial in Deister Holding and Juhler Holding. The assessment must consider the actual circumstances, including the group’s organisation and strategy. That does not guarantee tax relief for every company without employees. It prevents those features from becoming a universal test of abuse.
Directors need to examine the decisions they approve
The decision process should identify the people with authority, the information available to them and the powers they exercise. A shareholder or a fund’s investment committee may set strategy or approve matters reserved to it. The Luxembourg company’s directors still need to perform the role assigned to them under the company’s rules.
In a hypothetical acquisition, a foreign deal team prepares the valuation and negotiates the purchase. The Luxembourg directors receive the proposed contracts, consider the borrowing and guarantee obligations, ask questions and decide the matters within their powers before the company commits. Preparation abroad does not make that process artificial.
The facts are different if the Luxembourg company has already been committed by people abroad and its directors only sign a standard minute afterwards. The date and place of a signature cannot replace an examination of who actually decided. A local director’s address also says little about the information, authority and involvement behind a particular transaction.
Tax residence and tax relief are separate questions
Article 159(1) of the Luxembourg Income Tax Law treats a company as resident where its statutory seat or its central administration is in Luxembourg. The domestic rule uses alternatives. It does not require both conditions to be met in every case.
That does not resolve every cross-border question. Another country may also claim that the company is resident because its management is exercised there. If both countries treat it as resident, the applicable tax treaty determines how the conflict is addressed. Its terms need to be checked for the countries and period concerned.
For example, Article 4(4) of the 2022 UK-Luxembourg convention requires the tax authorities to seek agreement on a dual-resident company’s treaty residence, considering effective management, incorporation and other relevant factors. Without a residence agreement, treaty relief is available only to the extent and in the manner the authorities agree.
Residence also does not establish entitlement to every exemption or reduced withholding rate. The rules for dividend withholding and relief separately examine the distribution, recipient and conditions of the benefit claimed.
Commercial purpose matters when tax relief is claimed
Luxembourg’s general anti-abuse rule in section 6 of the Tax Adaptation Law considers whether a main purpose of an arrangement is to avoid or reduce tax contrary to the purpose of the tax law. The arrangement must also be non-genuine in light of the relevant facts, meaning it lacks valid commercial reasons reflecting economic reality. A tax advantage or a small headcount alone does not establish all these conditions.
The participation exemption has its own conditions. Article 166(2bis) contains a specific anti-abuse provision for dividends falling within the EU Parent-Subsidiary Directive and received from a company in another Member State. It sits alongside the general rule. Meeting ownership and holding-period requirements does not remove the need to examine the applicable anti-abuse conditions.
A commercial explanation should connect with the actual structure. A company may bring together investments, enter financing arrangements or organise relationships between investors. Recording such a purpose is useful only if its functions and transactions support it. A statement that the company facilitates investment explains little when the relevant work and authority are entirely elsewhere.
Treaty purpose and entitlement to the income need separate attention
A treaty may contain a principal purpose test, often called the PPT. Under the formulation in Article 7 of the Multilateral Instrument, relief can be denied where the relevant facts reasonably show that obtaining it was one of the principal purposes of the arrangement or transaction. This denial does not apply where it is established that granting the benefit accords with the object and purpose of the relevant treaty provisions. The applicable treaty and any changes made by the Instrument must be checked before relying on this test.
Where a treaty requires the recipient to be the beneficial owner of the income, the question concerns its entitlement to use and enjoy that income. It is distinct from identifying the natural persons who ultimately own or control the company. An obligation to pass receipts to another person can be relevant even if it emerges from the actual arrangements rather than an express clause.
In T Danmark and Y Denmark, the Court considered rapid onward payments, the intermediary’s role and its ability to use the income among the indicators of abuse. An onward distribution is not, by itself, enough to decide the case. The arrangements and their commercial explanation have to be examined together.
Outsourced support must fit the company’s functions
Domiciliation can provide a registered office and agreed company services. Accounting teams and advisers can prepare records, calculations and transaction documents. Their work supports the company, but does not by itself establish where management is exercised or who controls a decision.
Lending requires particular attention. The ACD circular on intragroup financing sets specific expectations for companies within its scope, including qualified personnel, control of risks, decisions taken locally and conditions concerning directors. Certain support may be outsourced, but the company must retain the capacity for the required decisions and actually exercise that control. Those requirements cannot simply be treated as the checklist for every passive holding.
The intragroup financing analysis develops the lender’s functions and risks. If the holding also provides services, the management fees analysis addresses the work actually performed and its remuneration. A service agreement does not show that the holding performed work actually carried out by a different group company.
Records should follow the activity as it happens
Useful records explain the transaction rather than merely stating that it was approved. A decision file can contain the information circulated, questions raised, terms considered and reasons for the final decision. Contracts, bank instructions and accounting entries should describe the same commitments. These are practical examples, rather than a legally mandatory file format for all holdings.
That consistency needs to continue after closing. Directors may need information about a borrower’s position, a guarantee or a proposed distribution. The annual SPV calendar connects the company’s transactions with its continuing accounts, filings and company records.
Changes in activity also matter. In Nordcurrent group, the Court confirmed that anti-abuse analysis may take account of the history of the arrangement and changes since its formation, rather than only the position at the dividend date. It also maintained the need to establish the conditions for abuse. A company should therefore be understood across its actual activity and changes, rather than through one meeting or one year’s headcount.
Unshell is not an adopted directive
The EU proposal commonly called Unshell or ATAD 3 sought common indicators for certain entities with limited substance. It has not been adopted.
In June 2025, the Council concluded that examination of the proposal should not continue, as recorded in the European Parliament’s legislative monitoring. In its 2026 work programme, published on 21 October 2025, the Commission announced its intention to withdraw the proposal and included it in the withdrawals list in Annex IV. The proposed indicators are not requirements imposed by an adopted Unshell regime.
The rules already in force remain relevant. A holding’s functions, decisions and records need to support its actual role throughout the investment. A general checklist cannot replace the separate assessment of residence, tax relief and the transactions the company carries out.
Luxembourg SPV and holding support
To connect company records, accounting and tax work with the holding company's actual activity.
Explore SPV and holding supportFrequently Asked Questions
Does every Luxembourg holding company need employees?
No general minimum headcount applies to a company solely holding participations. Its resources must fit its actual role. A company carrying on intragroup financing or another activity may be subject to more specific requirements. Having no employees is neither an automatic failure nor a guarantee that the arrangement is adequate.
Are a Luxembourg address and local directors enough to establish substance?
No. They do not by themselves show who exercises the company's powers, what information is considered or how its transactions are managed. Residence, treaty entitlement and anti-abuse rules must each be assessed under the applicable rules and facts.
