I Have a Belgian Residence Permit—Can I Start a Side Hustle or a Company?

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You already live legally in Belgium. Perhaps you work for an employer, study, hold a search-year permit or joined a family member.

Now you want to freelance, sell a service, open an online business or establish your own company.

Can you simply register the activity and begin?

The answer depends on your nationality, the legal basis of your residence, the type of residence document you hold and the role you intend to perform in the business.

Before registering anything, three separate questions must be answered:

Do you have the right to reside in Belgium?
Do you have the right to carry out this self-employed activity?
Have you completed the required business, tax and social-security registrations?

A “yes” to the first question does not automatically produce a “yes” to the other two.

Start with your nationality and residence status

Belgian and EEA nationals, as well as Swiss nationals, do not normally need a Belgian Professional Card to work as self-employed persons.

For non-EEA nationals, the position depends heavily on the residence status held.

Some non-EU residents are exempt from the Professional Card requirement. Depending on the precise legal basis of their stay, exemptions may apply to categories such as:

Certain family members of Belgian or EEA nationals
Recognised refugees
Holders of certain permanent or unrestricted residence statuses
People covered by specific international arrangements
Other limited categories connected to a particular activity or personal status

The exact residence document matters—but the letter printed on the card may not always tell the entire story. The legal basis on which the residence right was granted can also be relevant.

This is why two people who both say, “I have a Belgian residence card,” may receive different answers.

What if you work for a Belgian employer?

A residence permit linked to employment does not necessarily authorise self-employment.

Your existing permit may allow you to work for a particular employer, in a particular role or under the conditions of a Single Permit. That authorisation should not be assumed to cover independent work on evenings or weekends.

If you are not exempt from the Professional Card requirement, you may need to obtain one before beginning a secondary self-employed activity.

In Flanders, for example, the Professional Card application requirements specifically address self-employed activity carried out as a secondary occupation. An applicant relying on employment as the main occupation must provide a valid work authorisation for employment of at least half-time.

Other Regions may apply their own procedures and evidence requirements.

“But it is only a side hustle”

Belgian immigration and business rules do not contain a general exemption simply because an activity is small, occasional or described as a side hustle.

Activities such as these may still be considered self-employment:

Freelance consulting
Coaching or training
Providing design, marketing or technology services
Selling products through an online shop
Monetising content
Offering beauty, wellbeing or creative services
Working through a platform
Operating a business alongside salaried employment

Whether the activity produces a modest income does not, by itself, determine whether authorisation is required.

The authorities will look at the nature of the activity and your actual role.

Can you establish a Belgian company?

Company ownership and permission to work through the company are not the same thing.

A person may be able to hold shares or make an investment without performing an active professional role. However, actively managing, representing or providing services through the company can constitute self-employed activity.

Relevant roles may include:

Managing director
Active company director
Working partner
Company representative
Founder actively delivering the company’s services

Registering a company does not automatically grant its founder permission to work for it.

This distinction is especially important because company formation can create costs and legal obligations before the immigration question has been resolved.

Before incorporating a company, establish whether your intended role requires a Professional Card and whether your current residence status permits the proposed route.

What if you hold a student or search-year residence permit?

These situations require particular care.

The permission to work attached to a student residence status should not automatically be interpreted as unrestricted permission to work independently. A Professional Card may still be required for a self-employed activity.

A search-year residence permit also does not automatically authorise self-employment.

In Flanders, official guidance states that a person staying under a search-year status may work as an employee but cannot begin self-employed activity merely on the basis of that status. If a Professional Card is required, it must first be obtained, after which the residence status can be changed to one based on self-employment.

Starting the activity before resolving both the work-authorisation and residence questions can place the person’s legal status at risk.

If you need a Professional Card, can you apply from Belgium?

In many cases, a person with qualifying legal residence can submit a Professional Card application from within Belgium.

The submission method depends on the competent Region.

Flanders uses its regional online application portal for qualifying legal residents.
Brussels generally permits qualifying residents to apply through a recognised enterprise counter.
Wallonia follows its own regional procedure.

Not every temporary document or pending residence situation qualifies for an in-country application.

It is therefore important to verify that your particular residence document is accepted before preparing or submitting the file.

Can you begin while the application is pending?

Do not assume that submitting a Professional Card application gives you permission to start working.

Unless your existing status already authorises the activity or you fall within a valid exemption, you should normally wait until the required approval has been granted and the necessary registrations have been completed.

This includes avoiding actions that amount to actively delivering services through the business before you have the right to do so.

Preparing a business plan, researching the market and seeking advice are not the same as commercially operating the activity. The line can become less clear when you begin signing contracts, invoicing customers, delivering paid services or actively managing a company.

What happens after authorisation?

Receiving a Professional Card—or establishing that you are exempt from it—is not the end of the business setup.

Depending on your activity and legal structure, you may still need to:

Register through a recognised enterprise counter
Obtain an enterprise number
Register activities with the Crossroads Bank for Enterprises
Activate a VAT number where applicable
Join a social insurance fund for self-employed workers
Obtain sector-specific licences or professional recognition
Arrange appropriate accounting, insurance and contractual documentation

“Self-employed in a secondary occupation” is primarily a social-security classification. It does not create an immigration exemption by itself.

Both sides must be checked: your right to perform the activity and your business-registration obligations.

A practical decision sequence

Identify your nationality and exact residence status.
Establish the legal basis on which your residence was granted.
Define what you will actually do in the business.
Determine whether the role constitutes self-employed activity.
Check whether you are exempt from the Professional Card requirement.
If not exempt, identify the competent Region and application route.
Confirm whether your residence status must also be changed.
Obtain the required authorisation before beginning the activity.
Complete the business, tax and social-security registrations.

The key takeaway

Living legally in Belgium can make the route more accessible, but residence alone is not permission to start any business activity you choose.

Some residence statuses provide an exemption. Others allow you to apply for a Professional Card from Belgium. Some require a change of residence status before or after approval.

The safest starting point is not company registration.

It is a status check based on your nationality, residence document, reason for residence, proposed business role and intended Region of activity.

Once those questions are answered, you can build the correct route—without discovering too late that your side hustle created an immigration problem.

Official information

This article provides general information and does not constitute legal, immigration, tax or accounting advice. Residence and work rights depend on individual circumstances and should be verified before starting a self-employed activity.