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German Tax Identifier/Code

Published on Sep 2, 2026

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An 11-digit tax ID that is used for all tax purposes.

Validator

German Tax Identification Number - Validates ISO7064 Mod 11_10 checksum.

Matched expressions

Regex expressions	Description	Score
`(?:\b[1-9][0-9]{8}\b)`	Matches a 9-digit number of the format NNNNNNNNN, where the first digit can't be zero.	1
`(?:\b[1-9][0-9]{2}/?[0-9]{4}/?[0-9]{4}\b)`	Matches an 11-digit number of the format NNNNNNNNNNN or NNN/NNNN/NNNN, where the first digit can't be zero.	1

Ignored expressions

None

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