Germany Tax ID Generator & Validator
The German tax ID uses an iterative ISO 7064 style check computed over the first ten digits.
Generate a Tax ID
Produces a random Steuerliche Identifikationsnummer that passes the official checksum. Format: 11 digits
Validate a Tax ID
About the Steuerliche Identifikationsnummer
Expected format: 11 digits. The validator checks the structure and the official checksum, so a number that is well formed but fails its check digit is rejected.
Everything runs locally in your browser — nothing is sent to a server. Generated numbers are random test data: they match the algorithm but belong to no real person and must not be used to impersonate anyone.
Other countries
About this tool
This ID number toolkit generates and validates national identification numbers for more than 40 countries, including passport numbers, national IDs, tax numbers and social security formats. Each generator follows the official structure and check-digit algorithms of the respective country.
It is built for developers and QA teams who need valid-format test data without using real personal information. Everything runs locally in your browser, and all generated numbers are random, fictional and safe for testing environments.
Related tools
Build ICAO 9303 MRZ lines with valid check digits.
Validate ICAO 9303 MRZ lines and every check digit.
Read PDF417, QR and other codes from an image.
Generate random fictional addresses for testing.
Remove EXIF, GPS and IPTC data from your photos.
Encode AAMVA PDF417 driver license barcodes.