Commercial Domiciliation vs Registered Office: Key Differences

In Belgium, entrepreneurs often confuse "commercial domiciliation" with "registered office". Yet these are distinct legal concepts, with significant practical consequences for taxation, court jurisdiction and liability. This article clarifies both concepts, explains their fundamental differences, and helps you understand how to combine them for your business.

Precise legal definitions

The registered office (siège statutaire)

The registered office, called the "siège statutaire" in the Companies and Associations Code (CSA), is the company's official address as it appears in its articles of association and in the Crossroads Bank for Enterprises (BCE). It is defined in article 2:4 of the CSA.

The registered office fulfils several fundamental legal functions:

• Determining the company's nationality: a company whose registered office is in Belgium is governed by Belgian law (article 2:4, §1 of the CSA). Belgium has used the "registered office" criterion since the 2019 CSA reform, replacing the former "real seat" criterion under the 1999 Companies Code
• Determining the competent court: the competent enterprise court is the one covering the district where the registered office is located (article 631 of the Judicial Code)
• Determining the tax office: the registered office determines the competent VAT office and direct tax (corporate tax) office
• Address for service: court summonses, bailiff's writs and official correspondence are sent to this address
• Legal publicity: the address is published in the Belgian Official Gazette, in the BCE, and on all the company's commercial documents

What article 2:4 of the CSA says precisely:

The company's registered office is located in the language region set out in the articles of association. The articles state the language region (not the full address). The full address is published with the BCE. The management body can change the registered office address without amending the articles, provided it stays within the same language region.

Commercial domiciliation

Commercial domiciliation is a service whereby a provider makes a physical address available to serve as a company's registered office (or administrative address). It is not strictly a legal concept, but a commercial practice regulated by anti-money-laundering legislation.

Commercial domiciliation can be used to:

• Provide a registered office address to a company without its own office
• Provide an additional commercial address (alongside the registered office) for image or proximity-to-customer reasons
• Handle professional mail management
• Offer access to additional services (phone, meeting rooms)

The fundamental differences

Summary comparison table

Difference 1: Legal nature

The registered office is a legal obligation. Every company incorporated in Belgium must have a registered office. It is not possible to set up an SRL, an SA or an SC without declaring a registered office address in the articles of association (language region) and with the BCE (full address).

Commercial domiciliation is an optional commercial service. A company can choose to use a domiciliation provider for its registered office address, or use another address (the manager's home, a rented office, etc.).

In other words: every company has a registered office, but not every company uses a commercial domiciliation service.

Difference 2: One vs many

A company can only have one registered office (siège statutaire) in Belgium. This is the main address, the one shown in the articles of association and at the BCE as the "registered office".

By contrast, a company can have several commercial addresses:

• The registered office address (mandatory)
• One or more business units (places where the company actually operates, to be declared to the BCE)
• "Virtual" commercial addresses used for marketing or communication purposes (no declaration obligation, but be careful not to mislead consumers)

Difference 3: Legal consequences

The registered office has major legal consequences:

Court jurisdiction:

The competent enterprise court is the one covering the registered office. For example:

• Registered office in Brussels: the French-speaking or Dutch-speaking Brussels enterprise court
• Registered office in Liège: the Liège enterprise court (Liège division)
• Registered office in Antwerp: the Antwerp enterprise court (Antwerp division)
• Registered office in Namur: the Namur enterprise court

If a creditor wants to take your company to court, they will do so before the court of the registered office (except for legal exceptions or a jurisdiction clause).

Tax jurisdiction:

The registered office determines:

• The competent large enterprise or SME management centre of FPS Finance
• The VAT collection office
• The municipal surcharges applicable to individual company directors residing in the municipality of the registered office

Service of documents:

Court summonses, payment orders, bailiff's writs and official registered letters are sent to the registered office address. If the company does not receive these documents (because no one is present at the address), it risks default judgments.

Difference 4: Change procedures

Changing the registered office:

Under the CSA, the procedure depends on the type of move:

• Within the same language region: a decision by the management body (board of directors or manager). No need to amend the articles of association. Publication with the BCE (EUR 97.50) and in the Belgian Official Gazette (around EUR 165)
• To another language region: the articles of association must be amended by an extraordinary general meeting. A notarial deed is required (notary's fees: EUR 750 to 1,500). Publication in the Belgian Official Gazette (around EUR 165). The language region is changed in the articles of association

Changing commercial domiciliation provider:

• Terminating the contract with the previous provider (subject to its terms)
• Signing a new contract with the new provider
• If the new address becomes the new registered office: the same formalities as above apply
• If it is a secondary commercial address: no particular formality is required

Real seat vs registered office: an important distinction

The evolution of Belgian law

Before the CSA (2019), Belgian law applied the real seat theory: a company's nationality was determined by the location of its effective central administration, not by the address stated in its articles of association. This meant a company could be treated as Belgian if its central administration was actually in Belgium, even if its articles listed a foreign registered office.

Since the CSA, Belgium has moved to the registered office theory (article 2:4 of the CSA): it is the address in the articles of association that determines the company's nationality and the applicable law. This change makes it easier for companies to relocate within the EU.

Practical consequences

In practice, this means that:

• A company can have its registered office in Brussels (via commercial domiciliation) while carrying out most of its activity in Paris or Amsterdam
• Belgian law will apply to that company (company law, accounting law, etc.)
• But beware: the company's tax residence depends on different criteria. The Income Tax Code (CIR 1992) and double taxation treaties use the place of effective management criterion to determine tax residence. A company domiciled in Belgium but whose decisions are all taken abroad could be treated as a non-resident for Belgian tax purposes.

Using commercial domiciliation as the registered office address

When it makes sense

Commercial domiciliation is used as the registered office address in the following situations:

• A startup without an office: the entrepreneur works from home or in a coworking space but wants a professional address for the BCE
• A foreign company: wanting to establish a presence in Belgium without renting an office
• A mobile professional: a consultant, coach or trainer who mostly works on the client's premises
• An asset management company: with no operational activity requiring an office

Conditions for validity

For commercial domiciliation to be valid as the registered office address:

1. The address must be genuine: an existing physical building, with a letterbox identified in the company's name
2. Mail must actually be received: the provider must ensure all mail is genuinely received, including registered letters and bailiff's writs
3. The provider must be registered: mandatory registration with FPS Economy as a corporate services provider
4. The domiciliation agreement must be formalised: a written contract between the company and the provider
5. The address must be consistent: the tax authorities can challenge a clearly artificial domiciliation (e.g. a construction company domiciled in a small 10 m² office with no tools or equipment)

The business unit: an essential complement

Legal definition

The business unit (unité d'établissement, UE) is defined by the law of 16 January 2003 as "a place of activity, geographically identifiable by an address, where at least one of the company's activities is carried out, or from which it is carried out".

How the registered office and business unit fit together

In Belgium, most commercially domiciled companies follow this structure:

• Registered office: the commercial domiciliation address (e.g. Avenue Louise 65, 1050 Brussels)
• Business unit no. 1: the manager's home (e.g. Rue de Namur 15, 5000 Namur) — the actual place of work
• Business unit no. 2 (if applicable): a warehouse, shop, building site, etc.

The obligation to declare a business unit is absolute: every company must have at least one business unit registered with the BCE. If the registered office is also the place of activity, the registered office and the business unit share the same address. If the company is commercially domiciled, the business unit is elsewhere (the manager's home, the main client's office, etc.).

Tax consequences

The business unit determines:

• The municipality that collects certain local taxes (tax on motive power, tax on commercial floor space)
• NSSO (ONSS): if the company employs staff, the actual place of work (business unit) matters for health and safety obligations
• Regional grants: some employment or investment grants depend on the location of the business unit, not the registered office

Managing multiple addresses

A common scenario

Take the example of Marie, a digital marketing consultant in Namur, who has set up an SRL:

• Registered office (commercial domiciliation): Boulevard du Régent 37, 1000 Brussels (at a domiciliation provider)
• Business unit: Rue des Carmes 22, 5000 Namur (her private home, where she actually works)

Consequences:

• The competent enterprise court is that of Brussels
• The competent VAT collection office is that of Brussels
• The municipal taxes linked to the registered office are those of the City of Brussels
• The municipal taxes linked to the business unit are those of Namur
• On her invoices, Marie must show the registered office address (Boulevard du Régent 37, 1000 Brussels)
• She can also show the Namur address as a correspondence or operating address

Commercial documents

The Code of Economic Law (Book III, Title 2) requires invoices and commercial documents to show:

• The company name
• The legal form (SRL, SA, etc.)
• The registered office address
• The company number (BCE)
• The bank account number
• The mention "RPM [court]" (Register of Legal Entities)

The address shown must be that of the registered office. If you have a different commercial address for correspondence, you can add it, but the registered office address must always appear.

Frequently asked questions

Can I have commercial domiciliation in one region and my business unit in another?

Yes, this is perfectly legal. For example: a registered office in Brussels (commercial domiciliation) and a business unit in Ghent (the actual office). The law applicable will be that of the language region of the registered office.

Is commercial domiciliation suspicious to the tax authorities?

No, commercial domiciliation is not inherently suspicious. The tax authorities simply check the consistency between the registered office address, the declared activity and the deductions claimed. As long as you have declared your business unit and your activity is genuine, there is no issue.

How much does it cost to set up a registered office through commercial domiciliation?

The costs to expect are:

What happens if my domiciliation provider goes bankrupt?

If the provider goes bankrupt, your registered office is left without a manager. You must:

1. Quickly find a new provider or a new address
2. Change the address with the BCE via your enterprise counter (EUR 97.50)
3. Publish the change in the Belgian Official Gazette (around EUR 165)
4. Inform FPS Finance, your bank, your customers and your suppliers

The change can usually be made within a few days via the enterprise counter.

Can I use the address of a friend or family member?

In theory, yes. Any genuine physical address can serve as a registered office. But this practice carries risks:

• The friend or family member must agree to receive the company's mail
• In the event of a court summons, the writ will be served at that address
• The address appears in the BCE, which is publicly accessible
• If the person moves house, the registered office must be changed
• The tax authorities might view this practice as suspicious

It is safer and more professional to use a registered domiciliation provider.

Conclusion

The distinction between the registered office and commercial domiciliation is fundamental for every entrepreneur in Belgium. The registered office is a legal obligation with major legal, tax and judicial consequences. Commercial domiciliation is a service that can support the registered office, offering flexibility and prestige at a controlled cost. The key is to understand how these two concepts fit together, to correctly declare your business unit, and to keep all your administrative and tax declarations consistent. If in doubt, consult your notary or accountant before making your choice.

---

This article was written by the Espero-Soft team for the blog dedicated to entrepreneurs in Belgium. For personalised advice, do not hesitate to consult a professional.