German Tax ID (Steuer-IdNr)

Matches a German personal tax identification number (Steuerliche Identifikationsnummer) — 11 digits, first digit 1–9.

✓ German tax forms✓ Payroll systems✓ ELSTER integration

Test String

2 matches

12345678901
98765432109

[…]Character class […]— Matches any single character listed in this set

1-91-9— 1-9 — range from '1' to '9'

\d{10}digit— \d — digit (0–9) — repeated exactly 10 times · {10} — exactly 10 times

Pattern: 11 charsInput: 23 chars

100% client-side · private

✓ Valid Examples