Central Balance Sheet Office

The Central Balance Sheet Office collects, processes and makes available the annual accounts of most legal entities active in Belgium. It is a valuable source of information for the preparation of statistics and financial analyses. This information is made available free of charge to all interested parties.

Migration of the Federal Authentication Service (FAS) to FAS 2.0

FPS BOSA informs us that the previously announced migration of the FAS to FAS 2.0 (communications of December 15, 2023 and February 21, 2024) will take place on Thursday, March 21, 2024 between 8 p.m. and 9 p.m. at the latest.
As a result, access through commercial certificate via CSAM will definitively no longer be possible and thus the associated personal space in Filing will also no longer be accessible.

Login to FILING with a commercial certificate

New IDAAS solution since 23/01/2024


Filing: unable to log in - look at I have a question

Preparation and filing

The preparation and filing of annual accounts by companies, associations and foundations are subject to strict statutory rules.

More info

The National Bank of Belgium’s online module can help you choose the correct template to be used to file annual accounts. 

Template selection tool


More information on the XBRL taxonomy and technical details on the Filing application can be found here.  

Technical information


Buitenlandse rekeningen melden


Anyone who wishes to can:

  • consult annual accounts free of charge;
  • analyse annual accounts in more detail. 

More info

Buitenlandse rekeningen melden