First Tax Declarations

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First Tax Declarations enables you to complete your corporate, legal persons and non-residents tax declaration efficiently and withour errors.


Choose quality

  • First tax declarations has been developed in close collaboration with the FPS Finance by a team of specialist with extended experience in XBRL-technology. We guarantee top quality.
  • Our support desk will answer all your questions.
  • We offer on premise training for you and you coworkers.

Efficient and easy to use

  • Import the trial balance easily from your accounting package and link the accounts to the codes in the declaration.
  • Import Biztax-files to recover your previous data.
  • Import an XML-file from you accounting software
  • Easily search the declaration for codes and descriptions.
  • Include annexes anytime while filling in your declaration (for example: reports and decisions of the general assembly).
  • Maintain an overview of your declaration: the tax amount payable or receivable is automatically calculated after a change has been made.
  • Easily export your delcaration, including annexes, to Biztax-files or to an envelope with a maximum of 25 declarations.


Number of users Different options
Unlimited amount of files
Support By phone and by mail 
Unlimited amount of Biztax-files
Supported languages for reports DU/FR/EN/GE
Supported working languages DU/FR/EN