Posting Workers To Belgium: The Limosa Notification

What every posting employer and (Belgian) service user should know about the Limosa notification.

A foreign employer posting workers to Belgium must file a Limosa with the Belgian Social Security Office prior to the activities in Belgium starting.

The service user must verify whether a Limosa has been made. If the posting employer cannot prove that Limosa has been filed, then the service user must notify the posted worker's presence to the Belgian Social Security Office.

Limosa at a glance

What is Limosa?

Limosa is a mandatory notification that tracks the presence of a posted worker on Belgian territory. Complying with Limosa also temporarily releases a posting employer from being required to issue a number of mandatory social documents (such as work rules, a personnel register, ...)