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ABN Lookup Australia: How to Find and Verify Any ABN

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ABN Lookup Australia: How to Find and Verify Any ABN

March 27, 2025
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Use the free ABN Lookup tool to search and verify any Australian Business Number. Learn how to check ABN details, verify businesses, and why it matters.

In this article

The ABN Lookup is a free public tool that allows anyone to search for and verify Australian Business Numbers. Maintained by the Australian Business Register, it provides essential information about registered businesses across Australia.

What is ABN Lookup?

ABN Lookup is an online search tool available at abr.business.gov.au that lets you find details about any ABN holder in Australia. You can search by ABN, ACN, or business name to retrieve registration details, GST status, and trading names.

How to search for an ABN

To look up an ABN, visit the ABN Lookup website and enter the business name, ABN, or ACN in the search field. The tool will return matching results including the entity name, ABN, GST registration status, entity type, and location. You can also search by state or postcode to narrow results.

Why you should verify an ABN

Verifying an ABN is important before making payments to contractors or suppliers. If a business does not have a valid ABN, you may be required to withhold 47% of the payment for tax purposes under PAYG withholding rules. Checking an ABN also helps you confirm that a business is legitimate and registered for GST.

What information does ABN Lookup show?

An ABN Lookup search returns the entity name, ABN status (active or cancelled), entity type (sole trader, company, trust, etc.), GST registration status, main business location, and any registered business or trading names associated with the ABN.

How ANNA Money can help

ANNA Money helps Australian businesses stay compliant by making ABN registration, invoicing, and tax management simple. Whether you need to register a new ABN or manage your existing business, ANNA provides an all-in-one platform to keep your finances organised. Sign up for ANNA today.

Disclaimer
This content is general information for small businesses. You can only use the document for your noncommercial purposes. In no event shall we be held liable for any claims arising due to, or dependencies on the accuracy and completeness of the content provided. ANNA does not provide personal or professional financial, accounting or tax advice and you should consult with external professionals for advice tailored to your situation prior to making any decisions.