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AustriaTax Identification Number

Also known asTax ID number · ATIN · Abgabenkontonummer

ISO codes
AUT / AT
Region
Europe
Length
9–11 characters
Checksum
Yes

Character map

Each cell is one character of the sample test value; separators are shown as-is.

Sample test value

846436731

This value was randomly generated to pass this country's validation rules. It is not a real ID and does not belong to any person.

(01)Country reference

Specification

Format
  • ##-###/####
  • #### ######
  • # — any digit
  • Other characters are written as shown.

Documented field layout: NN-NNN/NNNN

Length

9–11 characters

Checksum
Yes

Check digits are recomputed and verified.

Embedded data
No

This number encodes no extractable personal data.

References

Check a Austria number now.

Validate a Austria Tax Identification Number now — it runs in your browser and the number never leaves your device.

Try it in the validator

Validation rules for Austria come from the open-source idnumbers library. Report a format issue on GitHub