Steuer-ID Generator (Germany)

Generate valid Steuer-ID (Steuerliche Identifikationsnummer) numbers for testing purposes. Follows the official 11-digit German format with check digit.

international.disclaimer

This tool generates fictitious data intended exclusively for software testing and development purposes. The data does not correspond to real people or entities and must not be used for illegal, fraudulent purposes, or in ways that violate the privacy of others. Compliant with LGPD (Brazilian Data Protection Law).

See also:

Slug Generator
Chassis Validator
Multi-Tool
SIN (Canada)
Sensitive Data Masking
Credit Card Validator
Passport Generator
Chassis Generator

About Steuer-ID (Germany)

What is Steuer-ID?

The Steuerliche Identifikationsnummer (Steuer-ID) is Germany's tax identification number, issued by BZSt. It has 11 digits and is assigned at birth, remaining the same for life.

Verification algorithm

The 11th digit is a check digit calculated by the ISO 7064 Mod 11,10 algorithm. Among the first 10 digits, exactly one digit must appear 2 or 3 times, and no digit can appear more than 3 times.

Use in development

German fiscal systems, payroll platforms, and compliance applications require the Steuer-ID. The generator creates fictitious numbers that pass algorithmic validation.