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regex.to
SandboxPatternsDetectDocs
Identity
en-AU
#abn
#australia
#australian
#business

Australian ABN

Matches an Australian Business Number (ABN) — 11 digits, optionally space-separated in groups.

✓ Australian business forms✓ GST invoicing✓ Tax reporting
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Test String
3 matches
\d{2}digit— \d — digit (0–9) — repeated exactly 2 times · {2} — exactly 2 times
\s?space— \s — whitespace (space, tab, newline…) — repeated zero or one time (optional) · ? — zero or one time (optional)
\d{3}digit— \d — digit (0–9) — repeated exactly 3 times · {3} — exactly 3 times
\s?space— \s — whitespace (space, tab, newline…) — repeated zero or one time (optional) · ? — zero or one time (optional)
\d{3}digit— \d — digit (0–9) — repeated exactly 3 times · {3} — exactly 3 times
\s?space— \s — whitespace (space, tab, newline…) — repeated zero or one time (optional) · ? — zero or one time (optional)
\d{3}digit— \d — digit (0–9) — repeated exactly 3 times · {3} — exactly 3 times
Pattern: 29 charsInput: 41 chars
100% client-side · private

✓ Valid Examples

  • 51 824 753 556
  • 51824753556
  • 12 345 678 901

✗ Invalid Examples

  • 51 824 753
  • 518247535561
  • AB 824 753 556