Field help (ANUMADD)

This field is linked to the German legislation and the INTRASTAT portal (a system that collects statistics regarding intra-community trade). 

The additional number is used to identify a company or group of companies.

A group of companies sends a unique tax declaration to the tax authorities with a unique tax number (VAT tax entity).
However, for tax declarations via the INTRASTAT portal, each company from the group must send its declaration, indicating its VAT number. But since all companies in a same group have the same VAT number, each company must also indicate its identifier, in order to be distinguished from the other companies.