Closed on National Day
Our contact center and our departments will be closed on Monday 20 July and Tuesday 21 July 2026.
Exception: Some Customs departments will provide a stand-by duty.
All our departments will be available again by phone or by appointment as from Wednesday 22 July 2026 at 9 am.
You can get access to your personal file at any time and carry out the formalities via our E-services/MyMinfin.

Biztax

ASBL (non-profit association) or foundation? More information on the return as regards the income tax on legal entities.

Biztax allows you to file corporate income tax, income tax on legal entities and corporate/non-resident income tax returns.

Get access to Biztax

Commercial certificates "Isabel" and "Globalsign" no longer give access to the e-services of the FPS Finance as of 31 January 2024
 

News

  • 30.04.2026 - Launch Biztax assessment year 2026

    Need to file your corporate income tax, legal entities tax or non-resident corporation tax return? Biztax (This hyperlink opens a new window) is now available for the assessment year 2026.

    Deadline

    The filing deadline (This hyperlink opens a new window) for returns with balance sheet dates from 31 December 2025 to 28 February 2026 is 30 September 2026.

    If you file your tax return at the latest on 28 August 2026 and it gives rise to:

    • a refund: we will give it priority treatment. As a result, you will receive the refund, barring exceptions, no later than the end of December 2026.
    • a payment: we will only process it as from 1 October 2026. If you file your return in August, you will not have to pay any sum due earlier than if you file it in September.
       

  • 02.12.2025 - Get access to Biztax also via MyMinfin

    You can now file the following tax returns: the corporate income tax, the income tax on legal entities as well as the non-resident income tax/companies via our portal MyMinfin, where you will now find the link to the Biztax application in the tab “Ma déclaration/My return”.

    Biztax's functionalities have not changed.

  • 13.03.2025 - Sending notifications to the e-Box of enterprises

    Since 4 March 2025, we are sending notifications to the e-Box of enterprises for the following documents:

    During this first stage we are also sending the aforementioned documents in paper form.
    We are not sending notifications to the e-Box for the control report.  You can consult it on MyMinfin.

    We will send later notifications to the e-Box for the following documents:

    You can consult the aforementioned documents via MyMinfin.

    • Request for information
    • Rectification notice
    • Notification of tax decision
    • Notification of automatic taxation
    • Letter
    • Tax assessment notice for corporate income tax, income tax for legal entities, non resident income tax for legal entities.
    • Reminder letter
    • Notification of fine
    • Tax assessment notice for administrative fines

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