This issue has been resolved. Our apologies for the inconvenience.
Posted Jul 17, 2026 - 10:54 CEST
Identified
The issue has been identified and a fix is being implemented.
Posted Jul 13, 2026 - 08:44 CEST
Investigating
You may experience that all sections of the Income tax return and Corporate tax return are already marked as checked when starting a new return. Due to this issue, it is also possible to mark the return as completed, although not all sections are completed. We are investigating this issue and we will update this page as soon as more information becomes available.