On 28 April 2023, the Belgian Federal Public Service Finance made an official announcement regarding the launch of the Biztax e-service. This digital platform is aimed at facilitating the submission of corporate income tax (CIT) returns for the assessment year 2023 (2022 tax year).

Additionally, the announcement specifies that the deadline for filing corporate tax returns for fiscal years ending between 31 December 2022 and 28 February 2023, is set for 9 October 2023. This deadline applies to both resident and non-resident corporate taxpayers.

Furthermore, corporate tax returns submitted by 8 September 2023 will be given special attention to expediting the processing of refunds. The aim is to ensure that all eligible refunds are issued by the 31 December 2023, with a few exceptions to be considered.