When running a business or working with other companies in Australia, verifying a business’s identity is a smart move. One of the best ways to do this is to search business ABN (Australian Business Number). An ABN is a unique 11-digit identifier issued by the Australian Business Register (ABR) that tells you whether a business is registered, active, and legitimate.
In 2025, several tools will make it easy to search business ABN for free. These tools are helpful for business owners, accountants, freelancers, or anyone who wants to confirm who they’re dealing with. This article covers the top platforms where you can search business ABN with zero cost and maximum convenience.
Why You Might Need to Search Business ABN
Before we dive into the tools, let’s quickly look at why you might want to search business ABN:
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To verify if a business is legally registered in Australia
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To confirm the legal name of a supplier or contractor
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To check the GST status of a business
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To ensure a business is active and not deregistered
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To avoid scams or fake companies
Whatever your reason, having access to reliable ABN search tools helps keep your dealings safe and transparent.
1. Australian Business Register (ABR) Website
The most official place to search business ABN is the ABR website. This is run by the Australian Taxation Office (ATO) and provides up-to-date, government-backed information.
Features:
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Free to use
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Real-time ABN lookup
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Check GST and ABN status
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View trading names and business locations
If you want accurate and government-verified details, this is your go-to tool.
2. ABN Lookup App (iOS & Android)
In 2025, the ABN Lookup App has become a favorite for users on the go. You can search business ABN directly from your smartphone or tablet.
Features:
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Free and user-friendly interface
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Quick search results by business name or ABN
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Save frequent searches
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Perfect for small business owners or freelancers who need instant info
This is ideal if you’re often mobile or prefer checking details during client meetings.
3. ATO Online Services for Business
While mainly designed for tax and compliance purposes, the ATO’s business portal also allows you to search business ABN details if you’re already registered.
Features:
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Secure login for business owners
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Access to additional tax and BAS info
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Useful for cross-checking client or partner ABNs
This tool is best for established businesses already using ATO services regularly.
4. ConnectOnline (by MYOB)
ConnectOnline is a business tool used for verifying customer and supplier information. It’s commonly used by accountants and bookkeepers to search business ABN quickly and reliably.
Features:
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Free ABN lookups with registration
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Batch searches available for multiple ABNs
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Integration with MYOB software
If you’re managing many ABNs at once, this tool can save you time.
5. ABN Check Chrome Extension
This handy browser extension allows users to search a business’s ABN from any webpage. Just highlight the business name or ABN, right-click, and select “ABN Check.”
Features:
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Works within your browser
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Quick verification from websites or emails
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Free and easy to install
Great for users who regularly deal with online business profiles or emails.
6. Clear ABN Search
Clear ABN Search is a free online tool that allows users to search business ABN using a business name or ABN number. It’s known for its clean interface and fast results.
Features:
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Simple, no-login required
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ABN and GST details available
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Direct link to the ABR profile
Perfect for those who want a quick, no-fuss search without distractions.
7. Data.gov.au Business APIs
For developers or businesses building custom apps, Data.gov.au offers free API access to search business ABN data.
Features:
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Open source and free
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Access to full ABR datasets
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Can be integrated into CRMs or internal tools
While not for everyday users, it’s an excellent tool for tech-savvy businesses or software providers.
Final Thoughts
Being able to search business ABN quickly and for free has become essential in today’s digital business world. Whether you’re checking a contractor’s legitimacy, confirming GST status, or doing due diligence, having the right tools matters.
In 2025, there’s no shortage of reliable, free platforms to help you search business ABN with ease. From the official ABR site to mobile apps, Chrome extensions, and even developer tools, you can choose what best fits your workflow.
To stay protected and informed, make it a habit to search the business ABN before signing contracts, issuing payments, or onboarding new partners. It’s a small step that can save you from costly mistakes in the long run.
