About this Generator
This tool generates valid Australian Company Numbers (ACN) that comply with the official format requirements set by ASIC.
The generator creates ACNs following the official nine-digit structure and includes a valid check digit calculated using the ASIC algorithm.
Generated ACNs are for testing purposes only. While they follow the correct format and pass validation checks, they are not officially registered numbers.
About Australian ACN Generator
Key ACN features: • Nine-digit unique identifier • Includes check digit for validation • Remains unchanged if company changes name • Forms last 9 digits of company's ABN
ACN and Business: • Introduced with GST in July 2000 • Used to differentiate similar company names • Can be replaced by ABN on documents • Permanent identifier even after deregistration
To verify an existing ACN number, you can use our Australian ACN Verifier