Monsiegesocial Logo
Practical guide

Establishment Unit in Belgium

Everything you need to know about establishment units (operating premises): definition, differences with the registered office, and procedures to manage them via My Enterprise.

Warning: Important rule

Your domiciliation address cannot be used as an establishment unit address. This is prohibited by regulations as the domiciliation address is not a real place of activity.

Understanding the differences

Registered office

Definition: The legal and administrative address of your company.

Official address registered with the authorities
Used for legal and administrative communications
Determines the competent jurisdiction in case of dispute
Can be a domiciliation address (like MonSiegeSocial)

Establishment unit

Definition: The real physical location where your activities take place.

Address where offices, shop, workshop, etc. are located
Place where employees work and operations take place
Must be declared to the administration (CBE)
CANNOT be a domiciliation address

Procedures on My Enterprise

Manage your establishment units online, free of charge and in a few minutes. The procedure must be carried out by the company director.

1

Access the My Enterprise portal

Go to the official SPF Economy portal:

Open My Enterprise

Log in with your eID or itsme

2

Select your company

Once logged in, choose the relevant company from your list of companies (if you manage several).

3

Manage your establishment units

In the menu, click on "Establishment units". You can then:

Create

Add a new unit with the real address

Edit

Change the address of an existing unit

Delete

Delete a unit if needed

Important: Always enter the real and complete address where you carry out your activity.

4

Download your updated CBE extract

Once the modification is done, download your new CBE extract from your My Enterprise space.

This official document proves that your establishment unit is compliant and up to date.
5

Send us your extract

If you are domiciled at MonSiegeSocial and we have contacted you, simply send us your new CBE extract by email in reply to our message.

Our team will update your file as a priority to validate its compliance.

Need technical assistance?

For any technical assistance when modifying your establishment unit on My Enterprise, contact the CBE Helpdesk directly, the official competent body to assist you.

Frequently asked questions

Do I have to have an establishment unit?

No. If you work exclusively online, from home (without receiving clients), or without fixed commercial premises, it is not mandatory to have an establishment unit. You can request its deletion via My Enterprise.

Can I have multiple establishment units?

Yes. If your company carries out its activities in several different locations (multiple shops, regional offices, etc.), you can declare several establishment units.

Are there fees to manage my establishment units?

No. The procedures for creating, modifying or deleting establishment units via My Enterprise are entirely free of charge.

What should I do if my domiciliation address is declared as an establishment unit?

You must immediately modify or delete it via My Enterprise. This is a regulatory non-compliance that can have administrative consequences. Follow the tutorial above to correct this situation in a few minutes.

Can I use my personal address as an establishment unit?

Yes, in certain cases. If you genuinely carry out your professional activity from your home (home office, workshop, etc.) and you own or rent the property, you can declare it as an establishment unit. However, check the rules of your lease or co-ownership.

Need a domiciliation address?

MonSiegeSocial provides you with a prestigious legal address for your registered office, separate from your real place of activity.