ABN Lookup is the free public interface of the Australian Business Register (ABR), providing access to publicly available information supplied by businesses when they register for an Australian Business Number (ABN). The service allows searching by ABN, Australian Company Number (ACN), or business name, enabling users to obtain current and historical details about Australian businesses.

The ABR contains official business registration data, including entity names, ABN status, type of business entity, and related information. While trading names are displayed only for historical reference (trading name data ceased updates in May 2012), the platform links to the national Business Names Register for current registered business names.

ABN Lookup also offers web services that can be integrated into third-party applications for ABN validation, pre-filling forms, and keeping ABN-related data up-to-date. The service is widely used by government agencies and businesses alike, with over 1.1 billion searches in recent months.

How ABN Lookup Can Be Used in Background Checks:

• Verification of Business Identity: When conducting due diligence or vendor/supplier assessments, ABN Lookup can confirm that the business is officially registered, active, and operating under the correct entity name.
• Assessment of Entity Status: The service provides ABN status (active, cancelled, etc.), helping users verify if a business is currently trading or has ceased operations, which is critical when entering contracts or partnerships.
• Cross-Referencing Business Details: Information such as entity type, registration details, and historical trading names can assist in verifying consistency across documents and declarations.
• Fraud Prevention: Confirming ABN details reduces the risk of engaging with fraudulent or unregistered businesses.
• Integration for Automated Screening: Organisations can implement ABN Lookup web services within their systems to automate business validation during onboarding or compliance processes.

Using ABN Lookup ensures background checks involving Australian businesses are based on authoritative and updated government data, supporting compliance and reducing risk in commercial decisions.