The VAT number (Umsatzsteuernummer, Umsatzsteuer-Identifikationsnummer or USt-IdNr.) is a number that's used to identify you when you make VAT payments to the Finanzamt. You can request a VAT number by filling the Fragebogen zur steuerlichen Erfassung.

In Germany, the VAT number has this format: DE123456789.

The VAT number is also called a Umsatzsteuer-Identifikationsnummer, or USt-IdNr.