Signing and submitting our tax return electronically (without a private mandate)

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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 without a private mandate. In other words: how does one proceed when both taxpayers have their own certificate to sign the tax return electronically?

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

  • how to proceed if one of you does not have a certificate;
  • how to sign and submit your tax return in the case of individual taxation.

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