Glossary / Verification & identity
ABN Verification
ABN verification confirms that an Australian Business Number is valid, active, and registered to the business you are dealing with, using the Australian Business Register.
What does ABN verification check?
An ABN is an 11-digit identifier every Australian business uses on invoices and quotes. Verifying it means looking it up on the Australian Business Register to confirm three things: the number passes its checksum, the ABN is active rather than cancelled, and the registered entity name matches the supplier you believe you are paying. A concrete example: an invoice lists an ABN and the trading name “Harbourline Electrical”. A quick ABN lookup shows the number is active but registered to a completely different entity, or was cancelled two years ago. Either result is a signal to pause before paying.
Why it matters for Australian finance teams
A valid-looking ABN on a PDF proves nothing on its own. Fraudsters reuse real ABNs, quote cancelled ones, or pair a genuine number with a mismatched name to make a fake invoice look legitimate. For accounts payable teams onboarding new suppliers or acting on a change request, checking the ABN against the Australian Business Register is a fast, authoritative control. It also supports the business identification expected under AML/CTF due diligence for entities regulated by AUSTRAC.
How ezyshield helps
ezyshield confirms the person, the business via ABN and ASIC records, and bank account ownership before money moves, so an ABN is validated against the register and tied to the account you are about to pay. If those details change, any change triggers re-verification, and every check is written to an append-only audit trail, logged and never edited or deleted. See how it works and our guide to ABN verification before payment.
Also known as: ABN check, Australian Business Number verification
Last updated: 7 July 2026
Related terms
- ACN Verification ACN verification confirms that an Australian Company Number is valid and matches a company registered with ASIC, so you can be sure the entity legally exists.
- Business Verification Business verification confirms that a business is real, legally registered, and controlled by the people it claims, using sources such as the Australian Business Register and ASIC records.
- Know Your Business (KYB) Know Your Business (KYB) is the process of verifying a business customer or supplier, including its ABN, ACN, ASIC registration, and beneficial owners, before you transact with it.
See also: ABN verification before payment , Supplier verification in Australia , Know Your Business (KYB) in Australia
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