Please note that the certificate of payment concerning child benefit for the month of January 2023, which you may need in order to adjust the tax class on your tax card, can only be requested from 25/01/2023. No certificate relating to 2023 can be requested or issued before this date.
The request should preferably be done via the function "Procedures and Forms - Request for payment certificate" available on our website (https://cae.public.lu/en/demarches/demande-de-certificats.html).
