How To Cancel An ABN In Australia

Deciding to pause or wind up your business is a big call - and it often raises a common question: do you need to cancel your ABN?

If you no longer carry on an enterprise in Australia, cancelling an ABN is usually required. The good news: it’s free, can be done online, and takes just a few minutes if you have the right details handy.

In this guide, we’ll explain when you should cancel an ABN, how to close it online (including via myGov), what happens afterwards (GST, PAYG, business names and more), and how the process differs for sole traders, partnerships and companies. We’ll also flag common mistakes to avoid and what to do if you restart trading later.

What Does It Mean To Cancel An ABN?

Your Australian Business Number (ABN) is the government identifier your business uses with customers, suppliers and agencies. If you’ve stopped carrying on an enterprise - in plain English, you’re no longer running a business - you’re expected to cancel your ABN.

Stopping “business activity” can include selling your last stock, ceasing to provide services, or shutting your website and marketing channels. If you’re unsure whether your activity still counts as carrying on an enterprise, it helps to understand what defines a business activity in Australia.

ABN cancellation doesn’t delete your history. It simply deactivates your ABN on the Australian Business Register (ABR) so it can’t be used. You’ll still need to finalise any outstanding tax and reporting obligations tied to that ABN.

Should You Cancel Your ABN Or Just Pause The Business?

Many owners ask whether they can “put the ABN on hold” while they take a break or test a new venture. There isn’t a formal “pause” status. If you stop carrying on an enterprise, you should cancel. If you expect to resume in the near future, keep in mind that ABN cancellation is free and you can usually reapply later.

These quick checks can help you decide:

• You’re still invoicing or plan to within the next few months: keep your ABN active.
• You’ve stopped selling or servicing and have no firm plan to restart: cancel the ABN.
• You’re changing structure (e.g. moving from sole trader to company): you’ll generally cancel the old ABN after you’ve transitioned and registered the new entity.

If you’ve been inactive for some time, it’s also worth confirming whether Does an ABN expire (short answer: ABNs don’t expire automatically, but the ABR may cancel them if you’re no longer active).

Thinking ahead to your next move? Weigh the advantages and disadvantages of having an ABN, and remember that if you intend to operate as a contractor or sole trader again, you’ll need an ABN to lawfully invoice and to avoid no-ABN withholding. For context, here’s what you need to know about working under an ABN.

How To Cancel An ABN Online (Including myGov)

There are two common ways to cancel your ABN online. Both are free and take about 5-10 minutes if you have your details handy.

Option A: Through myGov (linked to the ATO)

1. Sign in to your myGov and open the ATO service.
2. Go to Business registration details (or similar wording) and locate your ABN.
3. Select the option to cancel or deactivate your ABN.
4. Confirm the date you ceased carrying on an enterprise (the date you stopped your business activity).
5. Submit.

This option works if your myGov is linked to the relevant entity and you are an authorised person for that ABN (e.g. the individual sole trader, a partner or a director/authorised contact of a company).

Option B: Directly with the Australian Business Register (ABR)

1. Visit the ABR’s Update your ABN details service and log in using your myGovID or available credentials.
2. Choose ‘Cancel ABN’, select the ABN and enter the cessation date.
3. Confirm and submit.

Tip: If you have multiple business registrations (e.g. GST, PAYG withholding), the system will prompt you to cancel or update those as part of the process.

Information You’ll Need

• Your ABN and the entity’s legal name.
• The date your business ceased trading (cessation date).
• Proof you’re an authorised person (the system checks this via your login).

Most cancellations are processed immediately, though the ABR may take a short time to update public records.

What Happens After You Cancel Your ABN?

Cancelling your ABN is just one step. You may have other registrations, contracts and records to finalise.

GST Registration and Final BAS

If you were registered for Goods and Services Tax (GST), you’ll need to cancel your GST registration effective from the same cessation date, then lodge your final Business Activity Statement (BAS) and pay any amounts due. If you have outstanding BAS lodgements, clear those as part of your wind-up.

PAYG Withholding and STP Finalisation

If you withheld tax from employee wages, cancel your PAYG withholding registration, finalise Single Touch Payroll (STP) for the financial year to date, and issue final payslips. Close off superannuation contributions owing to your staff.

Business Name and Licences

If you operate under a business name, remember that a business name is separate from the ABN. Cancelling your ABN doesn’t automatically cancel your business name registration with ASIC. Decide whether to keep it (in case you restart under that name) or cancel it to avoid renewal fees. For clarity on naming, it helps to understand the difference between business name vs company name.

Close Accounts, Contracts and Subscriptions

Close trading accounts with suppliers, advertising platforms and software subscriptions. If you have a premises, check your lease terms for your obligations on exit or seek tailored lease termination advice so you can plan your notice, make-good and handover correctly.

Final Invoices and Credit Notes

You can’t issue new invoices quoting a cancelled ABN. If you need to correct a past invoice, issue a credit note and reissue while the ABN is still active, or work with your accountant on the correct treatment post-cancellation.

Record-Keeping

Keep your business records for at least five years (often longer if required by specific laws). This includes tax records, employee records, contracts and communications. Good record management supports audits and any late-arriving disputes; you can read more about your obligations under data retention laws in Australia.

Cancelling An ABN: Sole Trader vs Partnership vs Company

The online cancellation step looks similar across structures, but your wider wind-up tasks differ. Here’s what to consider before you press the cancel button.

Sole Traders

• Make sure you’ve stopped trading and issued all final invoices.
• Cancel your GST and PAYG registrations (if any) and lodge your final returns.
• Decide whether to cancel your business name.
• Settle supplier accounts and close subscriptions or insurances.

If you plan to later operate through a company, be mindful of brand assets. You may wish to hold onto your business name (or register it to your company later) to avoid losing it during the transition.

Partnerships

• Follow your Partnership Agreement for ending the partnership, including notice, valuation of assets, and distribution of profits or losses.
• Cancel the partnership ABN and any GST/PAYG registrations.
• Finalise accounts with partners and third parties and communicate clearly with customers.

If you don’t have a written agreement, you’ll still need to address who gets what, who pays outstanding liabilities, and who handles final tax lodgements. Putting terms in writing - even at exit - can prevent disputes.

Companies

For companies, ABN cancellation is only one piece of the puzzle. You also need to decide whether the company will remain registered with ASIC (not trading) or be deregistered.

• Stopping trade: You can cancel the company’s ABN and GST but keep the company registered with ASIC if you want to hold assets (like IP or equipment) or may resume later.
• Deregistering: To fully close the company, you’ll need to meet ASIC’s deregistration criteria (e.g. assets under the threshold, no outstanding liabilities, all members agree) and apply separately to ASIC.

Remember, a company is a separate legal entity. Its name and ACN are different to the trading name you might use day-to-day. If you’re unsure how the pieces fit, review how a business name vs company name works in practice, and consider whether board approvals or existing documents (like a Company Constitution) set out any steps you should follow to cease trading or dispose of assets.

If you have co-founders, ensure your Shareholders Agreement (if you have one) is followed for decisions around winding down, asset sales, and any final dividends to shareholders.

Common Mistakes To Avoid When Cancelling An ABN

Cancelling an ABN is simple, but winding up a business has a few traps. Here are the ones we see most often.

• Forgetting to cancel GST or PAYG: Cancelling the ABN doesn’t automatically close your tax registrations. Cancel those and lodge your final BAS and STP files.
• Issuing invoices after cancellation: Don’t issue tax invoices showing a cancelled ABN. If corrections are needed, get accounting advice before acting.
• Leaving subscriptions running: Software, marketing and supplier accounts can keep billing. Close or transfer them before your ABN is cancelled.
• Overlooking leases and exit clauses: Commercial leases and equipment hire contracts often have notice and make-good obligations. Plan ahead or seek lease termination advice.
• Not communicating with customers: A short notice on your website and an email to active clients helps close accounts smoothly and protect your reputation.
• Assuming the business name cancels automatically: It doesn’t. Decide whether to keep or cancel your business name with ASIC.
• Neglecting employee entitlements: Final pays, leave and super must be handled correctly. Your Employment Contract should guide the termination process alongside Fair Work rules.

Can You Reactivate Or Reapply For An ABN Later?

Yes. If you restart the same business activity later under the same entity, you can usually reapply for an ABN and use your existing business name (if you kept it). Make sure you update your registrations for GST and PAYG if your turnover or staffing requires it.

If you’re changing direction or structure (for example, moving from sole trader to a company), you’ll apply for a new ABN for the new entity. This can be a good time to review whether a company set up suits your growth plans, or whether to keep operating as a sole trader for simplicity.

If you applied previously and had issues getting approved, it can help to revisit common reasons why ABN applications are unsuccessful so you can address them before you reapply.

Step-By-Step Checklist To Cancel Your ABN Smoothly

Use this practical checklist to stay on track:

1. Confirm you’ve ceased carrying on an enterprise (no further sales or services planned).
2. Raise any final invoices and collect outstanding payments.
3. Notify key customers and suppliers that you’re closing.
4. Cancel subscriptions, supplier accounts and advertising services.
5. Plan premises exit (if any) and take steps in line with your lease terms.
6. Back up and securely store your records for at least five years.
7. Cancel your ABN online via myGov/ATO or the ABR.
8. Cancel GST/PAYG registrations and lodge final BAS and STP.
9. Decide whether to cancel your business name with ASIC.
10. Close business bank accounts once all payments have cleared.

If you’re operating through a company and plan to deregister, add ASIC’s deregistration process to your list and ensure liabilities are paid and members agree before you apply.

Key Takeaways

• Cancel your ABN when you stop carrying on an enterprise in Australia - it’s free and can be done online via myGov/ATO or the ABR.
• After cancellation, finalise GST and PAYG registrations, lodge your final BAS and STP files, and decide whether to keep or cancel your business name.
• Wind-up steps vary by structure: sole traders and partnerships close tax and trading accounts; companies should also consider ASIC deregistration and follow governance documents.
• Avoid common mistakes like invoicing after cancellation, leaving subscriptions open, or forgetting lease and employee obligations.
• You can usually reapply for an ABN later if you restart; changing structure (e.g. to a company) will require a new ABN for the new entity.
• Document your decisions, store records for at least five years, and get legal help where contracts, leases or company rules apply.

If you’d like tailored guidance on cancelling an ABN, winding up your structure or planning a smooth transition to a new entity, reach us on 1800 730 617 or team@sprintlaw.com.au for a free, no-obligations chat.