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

Safe

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

Validate German Tax ID (Steuer-IdNr) natively in your backend or frontend without copying regex strings.

import { validate } from '@regexto/validators';

validate('de-steuerid', '...');

from regexto_validators import validate

validate("de-steuerid", "...")

import "github.com/regex-to/validators-go"

valid, err := validators.Validate("de-steuerid", "...")

use RegexTo\Validators\Validator;

Validator::validate('de-steuerid', '...');

use regexto_validators::validate;

let is_valid = validate("de-steuerid", "...").unwrap();