- The Wirtschafts-Identifikationsnummer (W-IdNr) is used for the unique identification of a business with financial authorities and other government agencies
- It helps simplify communication with authorities and may streamline and automate tax processes in the future
- The W-IdNr does not replace the Umsatzsteuer-Identifikationsnummer (USt-IdNr) or other existing identification numbers, but is used alongside them
- The introduction of the W-IdNr aims to simplify administration by gradually replacing existing identification numbers and making processes more efficient
- The USt-IdNr is specifically for intra-community trade within the EU, while the W-IdNr is for all businesses in Germany for tax purposes
- The W-IdNr is automatically assigned by the Federal Central Tax Office for new and existing businesses, so there is no need to apply separately for it.
Source: bundesfinanzministerium.de
Note that this post was (partially) written with the help of AI. It is always useful to review the original source material, and where needed to obtain (local) advice from a specialist.