• Notre prestataire de services LuxTrust annonce une maintenance le samedi 19 avril de 22h00 à 23h59. Pendant cette période il ne sera pas possible de se connecter aux services publics comme MyGuichet.lu ou eCDF ni de signer électroniquement à l’aide d’un produit LuxTrust. Une connexion et signature avec GouvID reste cependant possible. Par ailleurs, l’utilisation de l’app MyGuichet.lu pour des démarches sans signature reste fonctionnelle, à condition que l’app est couplée avec l’espace personnel de l’utilisateur. 
  • Unser Dienstleister LuxTrust kündigt für Samstag, den 19. April, von 22:00 bis 23:59 Uhr Wartungsarbeiten an. Während dieses Zeitraums ist es nicht möglich, sich bei öffentlichen Diensten wie MyGuichet.lu oder eCDF einzuloggen oder mit einem LuxTrust-Produkt elektronisch zu unterschreiben. Das Einloggen und Unterschreiben mit GouvID bleiben jedoch möglich. Zudem ist die Nutzung der App MyGuichet.lu für Vorgänge ohne Unterschrift weiterhin gewährleistet, sofern die App mit dem persönlichen Bereich des Nutzers gekoppelt ist.
  • Our service provider LuxTrust has announced maintenance work on Saturday 19 April from 22.00 to 23.59. During this period, it will not be possible to log in to public services such as MyGuichet.lu or eCDF, or to sign electronically using a LuxTrust product. However, it is still possible to log in and sign with GouvID. Furthermore, the MyGuichet.lu mobile app can still be used for procedures that do not require a signature, provided that the app is linked to the user's private eSpace.

Signing and submitting our tax return electronically (with a private mandate)

Last update

This step-by-step tutorial uses screenshots to explain how to sign and submit your tax return electronically via MyGuichet.lu in the case of joint taxation with a private mandate. In other words: how can a taxpayer with an certificate also sign on behalf of their spouse or partner?

This tutorial will shortly be available in English.

Play YouTube video, see caption below

Signer et transmettre notre déclaration d’impôt par voie électronique (avec mandat privé) (Video/Audio YouTube)

Please also consult our other tutorials, in which we explain:

  • how to proceed if you both have a certificate in the event of joint taxation; 
  • how to sign and submit your tax return in the case of individual taxation.

Downloads

An accessible version of our tutorial can be downloaded below in PDF format (with screenshots) or Word format (without screenshots).

Signer et transmettre notre déclaration d’impôt par voie électronique (avec mandat privé)

Last update 04.04.2025

PDF3.10 Mb

Signer et transmettre notre déclaration d’impôt par voie électronique (avec mandat privé)

Last update 04.04.2025

WORD338 Kb

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Themes

Taxation

Tutorials

Tutorials on the key features of MyGuichet.lu

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Procedures

Electronic income tax return for natural persons using MyGuichet.lu

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