Skip to main content
Free • Unlimited checks • No signup

Validate Austria TIN (Steuernummer)

Free online Steuernummer validator. Instant validation using OECD-compliant rules for Austria tax identification numbers.

Validation Workspace

Validate Steuernummer

Enterprise checks for Austria tax identification numbers.

Instant one-by-one format validation

Country

Austria

Document

Steuernummer format check

Enter a Steuernummer to validate for Austria

Awaiting input

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

Use a real Steuernummer sample to verify format compliance before filing.

About Austria TIN (Steuernummer)

The Steuernummer is the official tax identification number used in Austria. Format: 9 digits (XX-XXX/XXXX) with checksum

Valid Examples

  • 12-345/6789
  • 98-765/4321

Invalid Examples

  • 12-345/678 (Too short)
  • 12-345/6788 (Invalid checksum)

Common Use Cases

  • Tax declarations
  • Employment
  • Business operations

Official source: Bundesministerium für Finanzen

Frequently Asked Questions

What is an Austrian Steuernummer?
The Steuernummer is Austria's tax identification number. Format: XX-XXX/XXXX where the last digit is a check digit.
How do I get a Steuernummer?
The Steuernummer is automatically assigned when you register with the Austrian tax office (Finanzamt) as a taxpayer.

Need to validate 100s of TINs?

Sign up for 1,000 validations/month completely free. Bulk upload, API access, and webhooks included.

Create free account

No credit card required • 1,000 free validations/month

Also check TINs for:

United StatesGermanyUnited KingdomFranceJapanView all countries