Steuerliche Identifikationsnummer – Wikipedia
The tax identification number (or tax ID number) is a nationally standardized and permanent eleven-digit identification number for citizens registered in Germany for tax purposes.
The eleventh digit is a check digit that is calculated from the first ten digits of the number sequence.
GC Wizard offers the following check digit tools for TINs:
Checking the validity of a TIN
Calculate the check digit of a TIN
Calculate missing digits of a TIN
If the TIN is incorrect, correct options are calculated.
