How to Verify a Customer’s ABN and ACN Before Extending Credit in Australia

Extending trade credit to a new business customer carries real financial risk. One of the most effective ways to reduce that risk costs nothing and takes less than ten minutes: checking the customer’s Australian Business Number (ABN) and Australian Company Number (ACN) before you agree to any credit terms. Done properly, this simple step can reveal whether you’re dealing with a registered, compliant, and financially stable entity, or someone you should walk away from.

This guide explains how to run an ABN lookup and ASIC register search, what to look for in the results, and how to combine those checks with other verification steps to build a solid picture of a customer’s creditworthiness before you commit.

What Are the ABN and ACN?

The ABN is an 11-digit identifier issued to businesses and other entities operating in Australia. The Australian Business Register (ABR) administers it, and it serves as the primary reference point for dealings with the Australian Taxation Office (ATO). Any business collecting GST, lodging BAS statements, or entering commercial contracts is expected to hold one. If a potential customer cannot provide a valid ABN, that alone is a warning sign worth taking seriously.

The ACN is separate. It’s a 9-digit number assigned specifically to companies registered under the Corporations Act 2001, administered by the Australian Securities and Investments Commission (ASIC). Not every ABN holder has an ACN – sole traders, partnerships, and trusts do not. But any proprietary limited company, public company, or other incorporated body should have one. When extending credit to a company, verifying the ACN alongside the ABN is standard due diligence.

Understanding which entity type you’re dealing with matters too. A trust, for example, holds an ABN but the legal liability sits with the trustee. A partnership’s ABN covers the partnership, not the individual partners. Entity type identification is the first step in knowing what credit risk you’re actually taking on.

Why ABN and ACN Verification Matters for Credit Risk Management

Bad debt doesn’t only come from customers who choose not to pay. It also comes from businesses that were never capable of paying, were deregistered before you invoiced them, or were trading illegally without proper registration. Verifying ABN and ACN status catches these problems before they become your problem.

Running credit checks on new customers is particularly valuable for small businesses that lack a formal accounts receivable team. Verifying business identity is the foundation of that process. A confirmed, active ABN tells you the entity is registered and interacting with the ATO. A confirmed ACN tells you the company is on ASIC’s records and has complied with its registration obligations. Together, they confirm you’re dealing with a real, identifiable legal entity, which is the minimum requirement before offering any form of B2B credit.

How to Perform an ABN Lookup

The ABN lookup tool at the Australian Business Register is free, requires no account, and returns results instantly. Enter the ABN or the registered business name and you’ll see:

• Whether the ABN is currently active or cancelled
• The entity’s legal name and any trading names registered against it
• The entity type (company, trust, sole trader, partnership, etc.)
• The date the ABN was registered
• Whether the entity is registered for GST
• Whether it holds deductible gift recipient (DGR) status, if relevant

Check ABN status carefully. An ABN that was cancelled six months ago and then reinstated may indicate financial difficulty. A long-established ABN with continuous GST registration is a more reassuring picture. Also compare the legal name on the ABN register against what the customer has put on their credit application, discrepancies between the trading name and the legal name are common but should be clarified before you proceed.

Verifying the entity name on the ABR also confirms you’re not being misled. Trading name and legal name are different things, and you can only pursue a legal claim against the entity’s legal name. Getting that right from the start saves headaches later.

Searching the ASIC Register to Verify an ACN

If your customer is a company, search for them on ASIC Connect, ASIC’s online public register. You can search by ACN, ABN, or company name. The basic search is free and returns:

• The company’s registered name and ACN
• Its current status (registered, under external administration, deregistered)
• Its registered office address
• Its principal place of business
• The date of registration

Check the company status first. A company listed as “deregistered” no longer legally exists, which means any contract you enter with it may be unenforceable. A company shown as “under external administration” is in the hands of a liquidator or administrator, extending credit at that point would be inadvisable.

The registered office address is also worth noting. If a customer provides you with one address but ASIC shows another, ask why. Discrepancies between what a customer tells you and what ASIC shows on its register are a common indicator of disorganisation at best, and deliberate misrepresentation at worst.

What an ASIC Company Extract Tells You

For a more complete picture, order a company extract through ASIC Connect. There’s a small fee (currently around $9–$44 depending on the document type), but the information it provides goes well beyond a free search. An ASIC company extract includes:

• Full list of current and former directors
• Any charges registered against the company’s assets
• Share structure and shareholder details (for proprietary companies)
• Any insolvency notices filed against the company
• Historical name changes
• Annual return and financial reporting history

For credit managers assessing a new account, this document is genuinely useful. It confirms the company’s corporate structure, tells you who is running it, and flags any registered security interests that may affect the company’s ability to repay debts. If the extract shows the company has changed names multiple times or has outstanding insolvency notices, treat that as a red flag.

Conducting a Director Search and Checking Director IDs

Company directors are directly responsible for the conduct of the business, so it’s worth checking who they are and whether they have a clean record. The ASIC register allows you to search by director name and see what other companies that person is (or has been) involved with.

A director who has been associated with multiple deregistered or insolvent companies is a meaningful signal. Under Australia’s director identification number (DIN) system, every director must hold a unique, verified identifier. The DIN system was introduced precisely to prevent the use of fictitious identities and to make it harder for serial phoenix operators to hide their history.

You can also check whether a director is disqualified from managing corporations by searching ASIC’s banned and disqualified persons register. If a director appears on that list, do not extend credit to any company under their control.

Running a GST Registration Check

The ABN lookup will tell you whether a business is registered for GST. For businesses with a turnover above $75,000, GST registration is mandatory under the A New Tax System (Goods and Services Tax) Act 1999. A business operating above that threshold without GST registration is non-compliant, and that says something about how seriously they take their obligations.

For credit purposes, an active, continuous GST registration suggests the business has been operational and lodging returns. A business that was GST-registered for years, then deregistered, then re-registered is worth questioning. These patterns can indicate periods where turnover dropped significantly or where the business restructured.

KYC Requirements for Australian B2B Transactions

Know Your Customer (KYC) protocols exist primarily in regulated financial services, but the underlying principle applies to any business extending trade credit. Before you put a customer on 30- or 60-day terms, you should be confident you know who you’re actually dealing with.

That means confirming the legal entity name and structure, verifying the ABN and ACN against official registers, identifying the people responsible for the business, and confirming that the contact you’re dealing with is actually authorised to enter agreements on the company’s behalf. An authorised representative check, asking for a written authority or confirming through the company’s own records, is a simple step that prevents disputes later where the other side claims your contact had no authority to agree to credit terms.

For larger credit accounts, B2B credit vetting in Australia typically goes further than just a register check. It includes reviewing financial statements, commercial credit reports, and trade references.

Using the Public Register and Insolvency Notices

Beyond the ASIC company extract, several public registers provide additional verification data:

Insolvency notices. ASIC maintains a public notices website where you can search for insolvency-related announcements, including voluntary administration, liquidation, and deed of company arrangement notices. Searching a company name here before extending credit is free and takes seconds.

Deregistered company searches. If you suspect a company may have been deregistered and re-formed under a similar name, search ASIC’s historical records. This is especially relevant where you’re dealing with a business in the building and construction sector, where phoenix activity has been a documented issue.

ASIC’s Organisation and Business Names search. This lets you verify whether a business name is currently registered, who holds it, and whether it’s the same entity as the ABN holder,  useful when a customer is trading under a name that differs from its legal name.

How PPSR Searches Reduce Credit Risk

The Personal Property Securities Register (PPSR) is an often-overlooked tool in the credit vetting process. It records security interests over personal property,  meaning equipment, stock, vehicles, and other assets that a company has pledged as collateral against existing loans or finance agreements.

Running a PPSR search against a company tells you whether its key assets are already encumbered. If a company’s entire plant and equipment is subject to a security interest held by a bank or finance company, that means in a liquidation scenario, those assets would go to the secured creditor first. As an unsecured trade creditor, you’d be well down the queue. Knowing this before you extend credit allows you to adjust the credit limit accordingly, request a personal guarantee, or decide not to proceed.

For businesses supplying goods on retention of title terms, registering your own interest on the PPSR is also worth considering. For more detail on how to use the PPSR as part of a broader asset protection strategy, this guide on PPSR and asset protection for manufacturers covers the key steps.

Trade References and Commercial Credit Reporting

Register searches tell you about a company’s legal status and structure. They don’t tell you how the business actually behaves when bills are due. That’s where trade references and commercial credit reports come in.

Trade references are accounts from other suppliers who have extended credit to the same business. Ask for two or three references, contact them directly, and ask specific questions: how long they’ve been supplying on credit, whether payments arrive on time, and whether they’ve had any disputes. Vague or uniformly positive references from businesses you can’t independently verify are worth less than a candid conversation with a real supplier.

Commercial credit reporting agencies in Australia, such as Equifax, illion, and Creditor Watch,  hold data on payment history, court judgements, and defaults. Pulling a commercial credit report before approving a new account gives you a picture of how the business has treated other creditors, which is one of the best predictors of how they’ll treat you.

Setting a Credit Limit Based on Verified Information

Once you’ve completed your verification checks, you’re in a position to set a sensible credit limit rather than one based on gut feel or the customer’s request. The information gathered from the ABN lookup, ASIC register, director search, PPSR, and trade references should all inform that decision.

A business with an active ABN and ACN, no insolvency history, directors with a clean record, unencumbered assets, and strong trade references can reasonably be extended a higher limit. A business that’s only recently registered, has directors with a history of failed companies, or shows inconsistent GST registration should start on tight terms, or be required to pay in advance.

Managing credit limits dynamically as a business relationship develops is also good practice. A limit that was appropriate when an account was first opened may need reviewing as the business grows, or as external economic conditions change.

Protecting your cash flow starts before the first invoice is raised. A robust credit application process, combined with thorough identity verification, is the most cost-effective form of debt risk mitigation available. For more practical strategies on how to improve cash flow and avoid bad debts, the linked guide covers the operational side in detail.

When Verification Isn’t Enough

Even with thorough checks in place, some customers will still default. Circumstances change, and a business that passed every test at onboarding can still run into trouble six months later. That’s when having a clear collections process matters.

If you need support recovering an unpaid debt from a business that has failed to pay despite your due diligence, the debt collection and debt recovery specialists at Bell Mercantile handle commercial debts across Australia. The earlier you act on an overdue account, the better the recovery outcome.

FAQs