For your convenience, you can fill your tax return online, and here is how to do it.
Generally, in February, every taxpayer receives a form by mail or an e-mail invitation to declare his taxes. They must then put things in order. There are two possible ways of doing this :
Recognizing also that even if you receive a paper form attached to an e-mail, you can choose to fill the tax return forms online and send them to the Direct Taxation Authorityvia MyGuichet. It’s very practical !
To file your taxes online is very easy : go to the guichet.lu website, select your status (resident or non-resident) and follow the instructions. An online tutorial is also available here to help you through the tax return steps. You can also find a video about tax returns here.
It is therefore advised to meet the deadlines because according to guichet.lu : if the delivery periods are not respected, an additional tax, a default interest or penalty may be applied by the tax office.