Company domiciliation in Luxembourg

A Luxembourg company needs an identifiable registered office. A holding company or a special-purpose vehicle (SPV), a structure created for a specific purpose or transaction, may not need premises of its own. It still needs a stable address for company records, official correspondence and legal notices. Domiciliation allows it to use the address of a regulated professional and receive related services when its activity is compatible with the arrangement.

The Law of 31 May 1999 sets out who may provide domiciliation, requires a written agreement and gives the provider continuing duties. The arrangement should therefore be considered at the beginning of company formation and remain suited to the company’s activity as it develops.

The role of the registered office

The registered office is the address used for company filings and formal communications. Under the current Companies Law, a commercial company’s legal domicile is where its central administration is located. This is presumed to be the registered office unless the facts show otherwise.

The official domiciliation guidance describes domiciliation as a company establishing an office at a third party’s premises and receiving services there. It is suitable where the nature of the activity does not require separate operating premises.

A SOPARFI, a company holding financial participations, may need a registered office, company administration and meeting support without needing a workplace open to the public. A trading, production or retail business normally needs premises that match its operations.

The authorised providers

Professional domiciliation is reserved to specified regulated professions. The official list includes credit institutions, certain professionals in the financial and insurance sectors, Luxembourg avocats à la Cour, European lawyers registered on List IV, company auditors, approved statutory auditors and chartered accountants.

These providers are subject to professional standards and oversight. In its guidance on shared offices, the Commission de surveillance du secteur financier (CSSF), Luxembourg’s financial regulator, states that domiciliation must remain secondary to the provider’s main regulated services and be provided to clients receiving those services. Specialised professionals of the financial sector (PFS) authorised as corporate domiciliation agents are an exception.

Article 1 of the 1999 law does not apply to certain arrangements, including a seat provided by an undertaking in the same group or by an individual shareholder exercising significant influence, directly or indirectly, over the company’s affairs. Those exceptions do not remove the need for a valid registered office or any operational conditions attached to the company’s activity.

The written agreement

The domiciliary agent, meaning the provider of the registered-office service, and the company must sign a written agreement. It sets out the services, how information is shared, access to company records, each party’s responsibilities and how long the arrangement lasts and how it ends.

For a regulated financial professional, CSSF rules specify minimum content. Other authorised professions follow their own professional framework. The agreement should match the service actually delivered. A document describing only the use of an address is incomplete when the provider also receives official mail, maintains company records or supports governance.

The company remains responsible for its own company-law, accounting and tax obligations. The provider handles the agreed registered-office services without taking over responsibility for managing the company.

Identity and ongoing information

Before entering the relationship, the domiciliary agent must verify the legal conditions for the registered office and establish the true identity of the members of the company’s governing bodies. The information must be kept current. Under the 1999 law, identifying documents must be retained for at least 5 years after the company’s relationship with those individuals ends, subject to longer statutory periods. That starting point differs from the end of the domiciliation agreement.

Changes in directors, ownership, beneficial owners or activity can affect the provider’s understanding of the company and its risk. A file that was coherent at incorporation may therefore need updating during the year, not only at the annual accounts date.

Mail handling also needs clear rules. Court notices, tax letters and communications from the Trade and Companies Register (RCS) can carry deadlines. The agreed process should ensure that mail reaches the person responsible for acting on it, even when directors or external advisers change.

Domiciliation and substance

Domiciliation establishes the company’s legal address. Holding company substance concerns the reality of its functions, activity and decisions. An address alone does not establish where important decisions are taken or where the business operates. Those questions depend on the facts.

A board that understands the transactions, receives useful information and records its decisions helps demonstrate how the company actually works. Merely signing in Luxembourg decisions made elsewhere does not show the same involvement. The accounting records, contracts, authority to operate bank accounts and minutes of meetings should describe the same activity and decision process.

For an activity requiring a business permit, the law requires a physical installation in Luxembourg appropriate to the nature and scale of the business. It expressly excludes domiciliation from the notion of establishment. The requirement applies to a covered consultancy activity as well as to a workshop or shop.

The fit across company types

Holding companies and companies formed to make an acquisition often use domiciliation because their activity centres on ownership, financing and management decisions, without needing a large local workforce. A special limited partnership (SCSp) or its general partner may also need a stable address and coordinated company administration.

The needs change when the company starts providing services, employing a team or carrying on regulated activity. The registered office can remain with the domiciliary agent, while other premises support its Luxembourg operations.

Property ownership does not change the basic distinction. An SCI, a civil real estate company, may use domiciliation for its company address while the property, leases and related administration remain separate from the registered-office service.

The end of the arrangement

Notice of termination must be filed with the RCS and published in the Electronic Compendium of Companies and Associations (RESA). The agreement continues to have effect and the agent remains bound by its obligations until the filing.

If the domiciliation address was the registered office, the company loses its legal address from the filing date unless a replacement has already been registered. Official mail, banking reviews and corporate filings can then be disrupted.

Where company-law or establishment-law breaches are identified, the agent may terminate by registered letter specifying the provisions breached. That termination also takes effect upon filing with the RCS. If the domiciled entity is supervised by the CSSF, the regulator must additionally receive notice at least one month before termination takes effect.

Registering a replacement address before the existing arrangement ends preserves continuity for official correspondence and corporate filings.