Intra-Community Trade Declaration System / Help with online declaration



Update is an English term used to describe the result of updating or renewing, for example software.



A file is uploaded, for example, for the purpose of online transmission.


User identification

You need a user identification to log in to IDEV (begins with w3s). For more information to the user identification please see Chapter 1.3


VAT number from the advance turnover tax return

The VAT number is the number which the party responsible for providing information/declaring third party indicates in his or her advance turnover tax return.

The number of digits of a VAT number differs between the German Länder:

10 digits in

Baden-Württemberg, Berlin, Bremen, Hamburg, Hesse, Lower Saxony, Rhineland-Palatinate, Schleswig-Holstein,

11 digits in

Bavaria, Brandenburg, Mecklenburg-Western Pomerania, North Rhine-Westphalia, Saarland, Saxony, Saxony-Anhalt, Thuringia.

When in doubt, the Federal Statistical Office should be contacted (tel: +49 611 75 2865 or -2741).