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Validate Germany TIN (Steuer-ID)

Free online Steueridentifikationsnummer validator. Instant validation using OECD-compliant rules for Germany tax identification numbers.

Validation Workspace

Validate Steuer-ID

Enterprise checks for Germany tax identification numbers.

Instant one-by-one format validation

Country

Germany

Document

Steuer-ID format check

Enter a Steuer-ID to validate for Germany

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Paste values with or without separators. Validation also checks a normalized value.

Use a real Steuer-ID sample to verify format compliance before filing.

About Germany TIN (Steuer-ID)

The Steueridentifikationsnummer is the official tax identification number used in Germany. Format: 11 digits (XX XXX XXX XXX), validated with mod-11 checksum

Valid Examples

  • 86 095 742 719
  • 47 036 892 816

Invalid Examples

  • 12 345 678 901 (Failed checksum)
  • 86 095 742 71 (Too short)

Common Use Cases

  • Steuererklärung (tax return)
  • Lohnsteuerbescheinigung
  • Banking
  • Employment

Official source: Bundeszentralamt für Steuern

Frequently Asked Questions

What is a German Steuer-ID?
The Steueridentifikationsnummer (Steuer-ID) is a permanent, 11-digit tax identification number assigned to all German residents. It remains valid for life and does not change even if you move.
How is the Steuer-ID validated?
The German TIN uses a mod-11 checksum algorithm. The last digit is a check digit calculated from the first 10 digits, ensuring mathematical validity.
Where can I find my Steuer-ID?
Your Steuer-ID is on official tax documents, salary statements (Lohnsteuerbescheinigung), and letters from the Bundeszentralamt für Steuern (BZSt).

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