Foreign Tax ID Number - is the German UST-ID Numer?

Hallo all,
can someone tell me what the “Foreign Tax ID Number” is? Is it my german- Steuer-Nummer oder german-UST-ID?
If there is someone , who can help me- it where great!!! :smile:
Thank you,


For Germany, there are currently 2 possible TIN. The old TIN is your Steuernummer. It has been replaced by the Identifikationsnummer (IdNr.). But both have legal value for now.

Edit: My informations date back to 2012, so I’m not sure about the Steuernummer being still valid.