The end of the year is rapidly approaching, and with it, once again, the deadline for filing income tax returns. Whether you complete your declaration using the MyGuichet.lu electronic assistant, download it in PDF format from MyGuichet.lu or send it by post: the tax return for the 2024 tax year must be submitted to the Luxembourg Inland Revenue (ACD) by Wednesday 31 December 2025 at the latest. With the holidays approaching, it is advisable to plan these important tasks in advance so that you can fully enjoy the festive season.

Should you have any technical questions regarding MyGuichet.lu, please note that our Helpdesk and our physical reception desk located on Rue Notre-Dame in Luxembourg City are:

• only open until 12.00 on 24 December; and
• closed on 25 and 26 December.

In order to allow us sufficient time to assist you as effectively as possible, we kindly request that you submit any questions you may have as early as possible.