Check an Australian Business Number and quickly review basic business details, GST status, entity information, and supplier verification signals.
This free ABN checker is designed for quick supplier, contractor, invoice, and business checks before you add a business to your records, process a payment, or continue with onboarding.
Confirm the ABN, business name, entity type, GST status, ABN status, and basic registration details before working with a supplier.
Quickly see whether a business is registered for GST before reviewing invoices or payment details.
Bring key ABN, GST, entity, and registration details into one place instead of checking multiple sources manually.
An ABN, or Australian Business Number, is a unique 11-digit number used to identify a business or organisation to the government, other businesses, and the public. Businesses may use an ABN when invoicing, ordering, registering for GST, and dealing with other organisations.
An ABN helps connect a business to public registration details such as entity name, entity type, ABN status, GST registration, and main business location. It is often one of the first details checked when reviewing a supplier, contractor, customer, or business record.
This tool can show publicly available ABN details such as the entity name, ABN status, entity type, GST status, ASIC registration details where available, registered business names, and previous trading names where available.
ABN status tells you whether an Australian Business Number is currently active or cancelled. An active ABN generally means the ABN is currently registered. A cancelled ABN may mean the business registration is no longer active or that the business has ceased trading.
An active ABN is usually a good first signal that the business registration is current, but it should still be reviewed alongside the entity name, GST status, business names, and invoice details.
A cancelled ABN should be reviewed carefully before onboarding, payment, or invoice approval. It may indicate the business is no longer trading under that ABN.
Even if an ABN is active, the entity name, registered business name, GST status, or location may not match the details on an invoice or supplier form.
GST registered means a business is registered for Goods and Services Tax. In Australia, GST is generally a 10% tax on most goods, services, and other items sold or consumed in Australia. If a supplier is charging GST, checking their GST registration status can be an important invoice review step.
When reviewing an invoice, GST status can help you check whether the business appears registered for GST and whether the invoice details make sense against the ABN record.
Compare the ABN, entity name, registered business name, GST status, and invoice name. If the details do not match, it may be worth asking the supplier to confirm their details before processing payment.
An ABN is an 11-digit identifier used for businesses and organisations. An ACN, or Australian Company Number, is a 9-digit number issued by ASIC when a company is registered. Most Australian companies have both an ABN and an ACN, but they are not the same identifier.
| Identifier | What it means | Who uses it | Why it matters |
|---|---|---|---|
| ABN | Australian Business Number | Businesses, organisations, sole traders, companies, trusts, and other entities | Used to identify a business to government, other businesses, and the public. |
| ACN | Australian Company Number | Companies registered with ASIC | Used to identify a registered company and may appear on company documents. |
The entity type shown in an ABN record helps you understand what kind of business structure sits behind the ABN. A sole trader and a company are different structures, with different ownership, responsibility, and legal characteristics.
A sole trader is generally the simplest business structure. One person owns and operates the business and is legally responsible for the business, including debts and losses.
A company is a separate legal entity. Companies are registered through ASIC and receive an ACN. Company details may also be connected to an ABN record.
Checking an ABN is useful before onboarding a new supplier, approving an invoice, paying a contractor, adding a business to your accounting system, or reviewing a business that has changed its details.
Confirm that the ABN exists, the business name looks right, and the entity type matches what the supplier has provided.
Review the ABN, GST status, and invoice details before processing payment or claiming GST credits.
Check the registered business name, main business location, ASIC registration details where available, and any previous trading names.
Re-check a supplier if their business name, bank details, invoice format, GST treatment, or contact details change unexpectedly.
A basic ABN lookup is useful for a quick check. FastBusinessAPI is designed to help users go further by turning ABN checks into saved business profiles, recent search history, refreshed records, and reusable supplier or business review workflows.
Store businesses you have checked so you can come back to supplier, contractor, or client records later.
Review businesses you have checked recently instead of repeating the same ABN lookup from scratch.
Refresh stored business profile data over time when you need to review whether details have changed.
Add useful business context such as industry, website, source links, identifiers, descriptions, and stored profile notes where available.
Use ABN checks as part of a repeatable supplier review process instead of treating each lookup as a one-off task.
Keep business checks organised from a dashboard so users can revisit previous checks, saved profiles, and generated records.
The result shown by the checker will depend on what is available from the source record. A typical ABN check may include the entity name, ABN status, GST status, entity type, main business location, ASIC registration, and business names.
Common questions about ABN checks, GST status, entity types, supplier review, and how FastBusinessAPI can help organise business records.
An ABN is an Australian Business Number. It is a unique 11-digit identifier used to identify a business or organisation to government, other businesses, and the public.
ABN status shows whether the ABN is active or cancelled. A cancelled ABN may indicate the business has ceased trading or that the registration is no longer active.
GST registered means the business is registered for Goods and Services Tax. This is useful to check when reviewing invoices that include GST.
An ABN is an 11-digit business identifier. An ACN is a 9-digit company identifier issued by ASIC when a company is registered.
Yes, it is often useful to check a supplier’s ABN before onboarding or payment so you can review the business name, ABN status, GST status, entity type, and registration details.
No. This tool is for general business information only. It is not legal, accounting, tax, financial, or compliance advice.
This ABN checker is provided for general information and business research purposes only. It is not legal, accounting, tax, financial, or compliance advice. You should not rely on this tool alone when making supplier, payment, onboarding, legal, accounting, or compliance decisions. Always verify important details through official sources and seek professional advice where needed.