In the event of the loss of certain types of driving licences, you do not need to go to the police. You can file a report yourself via https://beldrive.mobilit.fgov.be/

Currently, the platform can be used for applications for provisional driving licences category B, definitive driving licences category B, and for the renewal of definitive driving licences categories A and B.
To apply for a driving licence online, you need a valid email address and telephone number, as well as the necessary documents for the application of your (provisional) driving licence.
After the application, the necessary checks will be carried out by your municipality.
Upon validation, your driving licence will be ordered. When collecting, you must hand over the original documents to your municipality and pay for the driving licence.
Please note that the application does not oblige the municipality or the FPS Mobility & Transport to issue your (provisional) driving licence if you do not meet the conditions for obtaining this document.

In the event of theft of your driving licence, you must file a report with the police.