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Peppol deadline: 01-01-2026
00

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Is it required to join SDZ?

NVDW
06/03/2025
Question

I recently started working as a self-employed person in a secondary occupation and I received an unsolicited letter from SDZ for a membership contribution of 190 euros. Is this membership required? I am already a member of Xerius.

After some Googling, I came across this article:
“Misleading letter” href=”https://www.nieuwsblad.be/cnt/dmf20240411_96484583″>https://www.nieuwsblad.be/cnt/dmf20240411_96484583

How is it legal to send unsolicited invoices?

You are indeed required to join a Social Insurance Fund, but you can choose which one you join by selecting your business counter. You cannot activate your vAT number without being affiliated with an SZD. More information can be found on the websites from the Federal Government (for vAT and taxes on the FPS Finance: https://financien.belgium.be/nl/zelfstandigen_vrije_beroepen). To find out more about the rules for social insurance funds for self-employed persons in secondary occupation, please visit Dexxter here: https://cursussen.dexxter.be/btw-exempted-bijberoeper/na-de-opstart/social-security-contributions.

If you have been paid incorrectly in response to a phishing email, there are only three things you can do.

  1. File a complaint with the police

(you can do this at your local police station or at the Federal Police Service Federal Crime Unit).

Question the fraudster to voluntarily refund the amount (but this is usually unsuccessful).

Johan

I am already affiliated with Xerius as a social insurance fund. SDZ is not a social insurance fund, but a trade union for self-employed persons.

That is, of course, completely absurd. If this so-called trade union for the self-employed really existed, who would it protect you as a self-employed person from? After all, you do not have an employer (you are your own boss) and the interests of the self-employed are defended in the Group of 10, the SERV, MinaRaad Vlaanderen and advisory councils by UNIZO.

I also received that letter when I started as a self-employed person in a secondary occupation and received several more letters from such companies. After using chatgpt for a while, I realised that it was not required and so I just ignored it!

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You really should try it out for yourself. Even if you don’t have a company number yet, you can already go ahead.

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