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From January 1st 2019, a declaration is required for every self-employed worker who comes to Belgium to pursue a temporal or partial self-employed activity in a high risk sector (construction, meat processing industry and cleaning industry), if that worker neither resides permanently nor is settled in Belgium.

The new version of the L1 document reflects the changes which were made at the end of 2017 to the mandatory Limosa declaration within the scope of the Plans for a fair competition of the State Secretary for the fight against fraud, more particularly as regards the temporary employment and the obligation to mention the economic sector.

Welcome to Working in Belgium

Are you a foreign employer, or their agent, wishing to post one or more workers to Belgium on a temporary basis? Are you a foreign employer, or their agent, of workers working part-time in Belgium?

Are you a self-employed person established in another country, coming to provide services in Belgium on a temporary or part-time basis?

If so, you need to declare your presence as a self-employed person or that of your workers before they begin to work in Belgium.

Click below to access the online services you need to get this done:

Online services

First steps

Your obligations

Your employees rights to social security


Before undertaking activities in Belgium as an employer, agent or self-employed person, you need to declare this work.

More information

Quick access

Via your Limosa account

Limosa - Mandatory declaration


Check in workers in the construction and meat sectors.

More information

Quick access

Via your eID/token

Check in workers

A question ?

Do you have any questions? Please contact us by chat or using the contact form.