Work permit application
Invited professor - maximum 90 days in Belgium
(art. 9,8 royal decree 9 June 1999)
If the duration of the employment in Belgium is maximum 90 days (in case of successive jobs without any interruption, the previous periods are taken into account to calculate the 90 days), you need to submit the following documents:
- Form
If the employer is established in Belgium: Authorisation application to employ a foreign worker during maximum 90 days (in French (.pdf) or in Dutch (.pdf))
If the employer is established abroad: Authorisation application to employ a foreign worker during maximum 90 days (in French (.pdf) or in Dutch (.pdf)) - Medical certificate for a foreign worker, in accordance with article 14 of the royal decree dated 9 June 1999 (in French (.pdf) or in Dutch (.pdf))
- Other required documents (.pdf)
Renewal
Please note, if the renewal of an authorisation entails total employment of more than 90 days, you must apply for a permit via the single procedure - and not a work permit.
What is the procedure?

Regulation
- Law dated 30 April 1999 on the employment of foreign workers
- Royal decree dated 9 June 1999 implementing the law dated 30 April 1999 with regard to employing foreign workers
- Royal decree dated 5 July 2018
- Decree of the Brussels-Capital Government dated 16 May 2019 amending the Royal Decree of 9 June 1999 implementing the Law of 30 April 1999 on the employment of foreign workers with regard to admission to work for activities carried out within the framework of a transfer within a company, a seasonal
- Decree of the Brussels-Capital Government dated 25 June 2020 amending the Royal decree dated 9 June 1999 implementing the Law of 30 April 1999 with regard to employing foreign workers More