About this Generator
This tool generates valid German Tax Identification Numbers that comply with the Federal Central Tax Office requirements.
The generator creates IdNrs following the official structure, including valid digit patterns and check digits.
Generated IdNrs are for testing purposes only. While they follow the correct format and pass validation checks, they are not officially registered numbers.
About German IdNr Generator
Generation Features: • 11-digit format • Valid digit patterns • Check digit calculation • Format compliance • Frequency rules
Technical Details: • ISO/IEC 7064 implementation • Pattern validation • Digit distribution • Format verification • Uniqueness check
To verify an existing IdNr, you can use our German IdNr Verifier