Company Formation Process in Belgium: Notary, Commercial Register, and Business Registration Number

A comprehensive guide to company formation in Belgium, covering notary procedures, registration and publication processes (which function as a commercial register), KBO/BCE business number, VAT activation, UBO registration, and the legal risks involved.

For entrepreneurs, investors, and foreign partners wishing to establish a company in Belgium, the most critical stage is understanding that the process is not simply about signing a "company agreement." In the Belgian system, company formation consists of a series of interconnected steps, including: choosing the type of company, obtaining a bank certificate (if required), preparing the articles of association, drawing up the incorporation document before a notary, filing with the competent business court, entering company data into the Crossroads Bank for Enterprises/Kruispuntbank van Ondernemingen (BCE/KBO) system, publication in the Belgian Official Gazette supplements, VAT activation, and UBO registration. Official sources clearly indicate that the notary plays a central role, especially in limited liability companies, while the registration and publication phases are handled through the business court registry and the KBO/BCE database. (business.belgium.be)

The concept of a "commercial register" in the classical sense of Turkish law does not have the exact same institutional structure in Belgium. Instead, the company's articles of incorporation are submitted to the competent business court/enterprise court registration system; then the company's identification information is entered into the KBO/BCE (Business Registry/Enterprise Register), and a summary of the incorporation is published in the supplements of the Belgian Official Gazette. In other words, the function of the commercial register in Belgium is fulfilled through the combined operation of the business court register, the legal entity file, the KBO/BCE registration, and the official publication mechanism. This is the legal and practical conclusion drawn from reading official sources together. (economie.fgov.be)

1. Before starting company formation in Belgium: why is the type of company crucial?

In Belgium, the company type determines the backbone of the incorporation procedure. According to federal sources, when incorporating a company, depending on the situation, notary intervention, a financial plan, articles of association, in some cases minimum capital or sufficient initial funds, and an auditor's report if there is in-kind capital are required. The most common company types include BV/SRL (private limited liability company), NV/SA (joint-stock company ), and CV/SC (cooperative company ) . Among these structures, BV/SRL stands out in practice as the "basic company form" because it allows partners a more flexible corporate structure in the articles of association. ( business.belgium.be )

The biggest mistake made at this stage is that the entrepreneur first considers only the expectation of tax breaks or low costs, rather than the business model itself. However, in Belgian law, the notary is not merely a technical authority that prepares the incorporation document during the selection of the company form; they also assume an advisory function regarding personal liability, internal management, shareholder relations, and tax consequences. According to the Federation of Notaries, in Belgium, some types of companies are necessarily established by a notarial act, and the notary guides the founder on the legal consequences of entrepreneurship. (notaire.be)

Therefore, when establishing a company in Belgium, the first strategic question should not be "how quickly can I set up the company?" but rather "which structure best reflects the risk of my business, my investment model, and my ownership structure?" Especially for foreign investors, choosing the wrong company type can lead to future amendments to the articles of association, governance disputes, difficulties in transferring shares, and additional registration costs. This conclusion is a reasonable legal consideration stemming from the fact that the official system prescribes different formalities depending on the type of company. (business.belgium.be)

2. Notary process: In which companies is it mandatory, and what is its function?

In Belgium, a notary is often indispensable for the incorporation of limited liability companies. According to the federal business registration portal, the incorporation deed for limited liability companies an authentic/notarial deed ; however, for general partnerships and limited partnerships with unlimited liability, incorporation can also be done with a special document. Current official statements indicate that filing for SRL, SC, and SA companies is handled by a notary; while for SNC and SComm types, there are special document and different digital/physical filing options. (business.belgium.be)

An important aspect of pre-notary preparation is the bank certificate. According to official records, a bank certificate must be obtained for the initial capital for NVs, and for BVs and CVs, for sufficient initial funds. This certificate confirms that the relevant amount has been deposited into an account opened in the company's name. In other words, before going to the notary, it must be shown that the company is seriously prepared, not just on paper, but also in terms of its financial foundation. (business.belgium.be)

During the notarization process, when the articles of association are being prepared, the identities of the founders, the company name, the subject of activity, the functioning of the general assembly, and other rules regarding the internal organization of the company are included in the text. This point is extremely important because, in Belgian company law, the company name is not merely a marketing sign, but an element of corporate identity stated in the articles of association and officially published. To avoid future disputes regarding the name, it is recommended to conduct preliminary research using various records, including KBO/BCE data and supplements to the Belgian Official Gazette. (business.belgium.be)

In practice, it is a serious mistake to consider the notary stage as a mere "formality." Because the notary doesn't just approve the text; they also consider the legal consequences of the chosen company form, its impact on personal assets, and whether the corporate structure aligns with the founders' intentions. Especially in flexible structures like BV/SRLs, if restrictions on share transfer, the structure of the governing body, representation authority, and decision-making procedures are not firmly established from the outset, the company may become inoperable in later stages. This section is a practice-oriented legal conclusion based on explanations of the notary's role from official sources. (notaire.be)

3. Filing the incorporation certificate: How does the "commercial register" function work in Belgium?

After the incorporation certificate is drawn up, the next crucial step is filing it with the competent business court registry. According to federal sources, the incorporation certificate must be filed with the competent business court in the location of the company's headquarters, and this process 30 days . For SRLs, SCs, and SAs, this filing is carried out by a notary; for companies incorporated by private deed, the filing is done by the partners. (economie.fgov.be)

In the Belgian system, registration is not simply a matter of data entry. Upon filing the incorporation document, the company's identifying information is transferred to the KBO/BCE (Belgian Commercial Register), and a unique business number is assigned to the company. Simultaneously, a summary of the incorporation document is published in the supplementary issues of the Belgian Official Gazette. This makes the company public to third parties. Therefore, in Belgium, "registration in the commercial register" actually refers to a single chain of legal visibility consisting of submission to the commercial register, registration with the KBO/BCE, and official publication. (economie.fgov.be)

Official sources also indicate that for certain types of companies, notaries can perform electronic filing, providing a single package of services including KBO/BCE registration, electronic registry registration, and publication in the Official Gazette. This e-filing mechanism speeds up the process, particularly for SRLs, SCs, and SAs. For some other companies, digital solutions such as JustAct are foreseen. This structure demonstrates that Belgium has significantly digitized its company formation process. (economie.fgov.be)

The practical point to note here is that missing filing deadlines, submitting incomplete documents, or providing an incorrect business activity description can not only create bureaucratic delays but also lead to a chain reaction of problems in banking, VAT, licensing, and customer agreement processes. This is because the Belgian authorities largely read company identity and activity data through the KBO/BCE (Corporate Incorporation Certificate). Therefore, it should be remembered that the information in the incorporation certificate will be directly reflected in subsequent records. This conclusion stems from the fact that the KBO/BCE functions as a central database for essential company data. (economie.fgov.be)

4. What is a business identification number (BCE/KBO number) and why is it critically important?

In Belgium, the business number is the company's primary identification number with the public authorities. According to the official statement, Crossroads Bank for Enterprises/KBO-BCE is a central database that holds essential data on companies and business units, assigning each company a unique identification number. This number allows companies to conduct transactions without having to repeatedly submit the same basic information to different institutions. (economie.fgov.be)

The business registration number is technically more than just a registration number; it effectively functions as the company's "administrative passport." Many processes, from VAT activation and employer registration to social security procedures and public data queries, are conducted through this number. Therefore, obtaining a business registration number is one of the prerequisites for a company to truly commence operations. Official portals consider the registration of a Business Registration Number (KBO/BCE) as one of the most important steps in the company formation process. (business.belgium.be)

In Belgium, the business registration number is also important in terms of public data visibility. Public data on companies and establishment units can be queried free of charge via FPS Economy's "Public Search" system. This has practical value for verifying the contracting party, checking the name, viewing the actual place of operation, and conducting a commercial risk assessment. (economie.fgov.be)

Another important consequence is the need for the correct use of the company name and legal form in official documents. According to FPS Economy, the company name, along with its abbreviation or full name and the KBO/BCE registration number, must appear in company documents; the VAT number is also important for invoices. Therefore, simply obtaining the number is not enough to consider the company's incorporation complete; the company's official identity must be used consistently in all its external documents. (economie.fgov.be)

5. Registration of business activity, NACE codes and business units

Establishing a company in Belgium is not simply about creating a legal entity; it also requires the correct definition of the economic activities to be undertaken within the system. According to official sources, business counters and administrative authorities define and register a company's activities NACE codes . Correct coding of activities, especially during the initial registration with the Belgian Business Registration System (KBO/BCE), is crucial for licensing, VAT, incentives, and audit processes in later stages. (business.belgium.be)

Furthermore, the concept of "establishment unit" holds particular importance in the Belgian system. Geographically identifiable points of operation such as workshops, stores, sales points, offices, branches, headquarters, or administrative offices are considered business units and must be registered with the KBO/BCE (Belgian Business Registration System). This is especially important if a single company has multiple points of operation. (economie.fgov.be)

A typical mistake made by foreign investors in practice is to define their business activity too narrowly or too broadly. An overly narrow definition may necessitate re-registration and correction when the company switches to an additional business line; an overly broad and unrealistic definition, on the other hand, can raise questions during licensing, banking compliance, and tax audits. The most sound approach is to establish consistency between the purpose clause in the articles of association and the NACE codes. This is a practical legal requirement stemming from the fact that the official registration system monitors activities based on NACE codes. (business.belgium.be)

6. VAT activation: obtaining a business registration number is not enough

In Belgium, obtaining a company's KBO/BCE number is not the same as becoming active for VAT purposes. The federal business registration portal clearly states that VAT activation must be completed separately. It is also stated that if a civil law notary has been used by the company, they can also handle the VAT activation process. This practical convenience is particularly important for foreign investors establishing a company in Belgium for the first time. (business.belgium.be)

FPS Finance sources also emphasize that, for legal entities, obtaining a company registration number is the first step. Therefore, the process must be read in the correct order: first, the company must legally acquire existence and obtain a business registration number, then the activities must be activated for VAT purposes. Ignoring this distinction creates risks in terms of invoicing and tax compliance. (FPS Finance)

In practice, this means that even if the company is officially established, it may be problematic to start issuing commercial invoices without activating it for VAT purposes. Timely completion of VAT activation is particularly vital for companies offering B2B services, importing goods, or planning intra-EU transactions. This is a natural consequence of the official system regulating company registration and VAT activation as separate procedures. (business.belgium.be)

7. UBO registration: obligation to disclose the actual beneficiary

In Belgium, one of the mandatory steps that should not be overlooked after company formation is completed is the UBO register . According to federal sources, the ultimate beneficiaries of the company, i.e., the natural persons who ultimately own or control the company, must be registered with the UBO register. Legal representatives must complete this registration via the MyMinfin portal ( business.belgium.be ) within 30 days of the company's incorporation .

This obligation is particularly important in multi-layered partnership structures and companies with foreign shareholders. The Belgian system aims to make transparent not only the apparent partners of the company, but also the real control relationship behind the scenes. Therefore, in arrangements such as parent companies, intermediary holdings, nominee structures, or family partnerships, the analysis of the UBO (Underlying Borrowing Regime) should not be superficial. This assessment is a legal inference regarding the purpose of the official UBO regime. (business.belgium.be)

8. Company name, address and official visibility

In Belgium, a company address and name are not merely contact information; they represent the company's legal entity to the outside world. According to the federal portal, the company's official address is considered its registered address; in case of an address change, this change must be published in the Official Gazette, followed by an update of the KBO/BCE (business.belgium.be)

A similar rigorous approach applies to company names. FPS Economy states that the company name is included in the articles of association and published in the Official Gazette of Belgium; furthermore, they point out that the company name and trade name are different concepts. While a trade name can be protected by its first public use, a company name identifies the legal entity and can provide nationwide legal protection. (economie.fgov.be)

Therefore, choosing a name during company formation should not be treated as simply "finding a nice, available brand name." The chosen name must not create confusion with existing trade names, must be usable as a company name, and must not contradict future brand strategy. The fact that the official system prescribes separate legal regimes for trade names and company names makes the initial preliminary research even more important. (economie.fgov.be)

9. Other steps that are often forgotten but are essential after establishment

In Belgium, the process doesn't end after a company is established. If the company will employ personnel, it must register as an employer with the National Social Security Office. According to the official portal, an employer identity must be created when the first employee is hired, followed by DIMONA registration and relevant periodic declarations. (business.belgium.be)

Furthermore, individuals holding titles such as self-employed manager, business director, employee partner, and similar positions are required to contribute to the social security fund. Federal sources state that managers and related individuals with self-employment status are required to contribute to the appropriate social security fund. This shows that establishing a company involves not only company law but also social security law aspects. (business.belgium.be)

In some sectors, special permits or professional qualifications may also be required for operation. The Belgian business portal states that activities associated with certain NACE codes may be considered regulated professions and therefore may require additional professional qualification assessments. Foreign investors, in particular, should pay attention to this in professional services, construction, healthcare, or licensed business sectors. (business.belgium.be)

10. The most common legal mistakes made when forming a company in Belgium

The first mistake is choosing a BV/SRL simply because it's common, without matching the company type to the business model. While BV/SRL offers a flexible structure for most startups, it's not automatically the best option for every business model in terms of fundraising, share transfers, corporate governance, and partnership dynamics. Official sources clearly state that different company types result in different costs and responsibilities. (business.belgium.be)

The second mistake is to think of the notary process as merely the signing of documents. However, the bank certificate, financial plan, articles of association architecture, and, if necessary, in-kind capital review determine the distribution of legal risks from the very beginning of incorporation. Therefore, the notary's role is structural, not merely formal. (business.belgium.be)

The third mistake is postponing VAT activation, UBO registration, business unit registration, and employer/social security obligations after obtaining the KBO/BCE number. However, the Belgian system is structured in such a way that these steps are independent but interconnected; a deficiency in one can effectively disrupt the others. (business.belgium.be)

The fourth mistake is to arbitrarily assign company names and activity codes. The name is the corporate identity stated in the articles of association and officially declared; activity codes determine how the administration views the company. Both have broad implications, from banking compliance to contractual relationships. (economie.fgov.be)

11. Conclusion: Company formation in Belgium is not a single transaction but a multi-layered legal compliance process

In Belgium, the company formation process—including the notary, the registration and publication mechanism (which functions as a commercial register), and the business registration number process—are not separate but parts of the same legal chain. The articles of incorporation, particularly for limited liability companies, are drawn up before a notary; the deed is filed with the business court; company data is entered into the KBO/BCE (Corporate Incorporation Registry); a business registration number is assigned; the incorporation summary is published in the Official Gazette; and then supplementary obligations such as VAT and UBO (Universal Business Registration) come into play. This system ensures both the legal creation and administrative recognition of the company. (economie.fgov.be)

Therefore, the correct approach for individuals or investors wishing to establish a company in Belgium is to view the process not merely as "company registration," but establishment, registration, visibility, taxation, and transparency . When the selection of a notary, the drafting of the articles of association, activity codes, KBO/BCE registration, and subsequent VAT-UBO steps are planned in a coordinated manner from the outset, both the establishment process is accelerated and costly corrections that may arise later are avoided. This conclusion is a sound legal assessment based on a systematic reading of official procedures. (notaire.be)

Frequently Asked Questions

Is a notary always mandatory to set up a company in Belgium?
No. According to official sources, while a notarial deed is required for limited liability companies, some types of unlimited liability companies can be established with a special document. (business.belgium.be)

Are business registration numbers and VAT registration numbers the same thing?
Not exactly. First, a company registration number is obtained from KBO/BCE; then, VAT activation is done. For companies, a notary can handle this activation. (business.belgium.be)

What does registration with the Belgian commercial register mean?
Practically, it means filing the incorporation certificate with the competent business court, processing the data with the KBO/BCE (Belgian Commercial Register), and publishing the incorporation summary in the supplementary issues of the Belgian Official Gazette. (economie.fgov.be)

When should UBO registration be done? Legal representatives must complete UBO registration via MyMinfin ( business.belgium.be ) within 30 days of the company's incorporation.

Is the business address also registered?
Yes. In Belgium, geographically identifiable business locations are also registered separately as "establishment units" in the KBO/BCE (economie.fgov.be)