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LEI vs Business Registration Number in Australia

Part of the Australia LEI knowledge hub — back to the Australia pillar.

Quick answer

An LEI is different from an Australian Business Number (ABN) or Australian Company Number (ACN). An ABN identifies a business in Australia, while an ACN identifies a registered company. A Legal Entity Identifier (LEI) provides a globally recognised identifier for eligible legal entities participating in financial activities.

Two different identifiers

Your ASIC (ABN/ACN) registration number proves the entity exists in Australia. The LEI is the globally-recognised ISO 17442 identifier used in financial reporting and counterparty checks worldwide.

Why you need both

The registration number is for domestic legal existence; the LEI is for financial-market identity. They complement, not replace, each other.

How they connect

The LEI's Level 1 reference data records the ASIC (ABN/ACN) registration number, linking your global identity to your local registration.

Apply, transfer, or renew


Apply for your LEI
Transfer (free)
Renew

Get your LEI

Fast-Track LEI issuance in 2 to 4 UK working hours is available subject to data completeness, applicant authority, and successful compliance validation. Transfers from another GLEIF-accredited LOU are free.

Frequently asked questions

No. An ABN, ACN and LEI are separate identifiers. The ABN identifies a business or organisation in Australia, the ACN identifies a registered Australian company, and the LEI identifies an eligible legal entity globally for financial-market use.

Yes, for entities active in financial transactions or reporting.

Yes — it is recorded in the LEI's Level 1 data.

Not where an LEI is specifically required. An ABN or ACN cannot replace the Legal Entity Identifier in a reporting or transaction workflow that requires an LEI.