
The Australian Business Number (ABN) is an important identifier for businesses in Australia. It is an 11-digit number that serves as a digital ID, connecting businesses with the government and other businesses. While the ABN is integral to doing business in Australia, there are several scenarios in which a business may need to cancel its ABN, such as changes to the business structure, ceasing operations, or transferring ownership. Cancelling an ABN is a serious decision that requires careful consideration and understanding of the implications. It involves fulfilling outstanding obligations, such as settling tax debts and closing accounts, before initiating the cancellation process through the Australian Business Register (ABR).
| Characteristics | Values |
|---|---|
| Reasons for cancellation | Change in business structure, ceasing operations, selling the business, business no longer fits eligibility criteria, business is exiting Australia, merger with another business, incorrectly registered ABN, not meeting legal requirements |
| Requirements before cancellation | Settle all outstanding tax obligations, including GST, PAYG, income tax, and other liabilities, close PayG account, notify relevant parties, close pending transactions, ensure all financial matters are resolved |
| Cancellation methods | Online via myGovID or ABR website, by phone, with the help of a tax agent |
| Time taken for cancellation | Up to 28 days |
| Reactivation | Possible if the business starts again |
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What You'll Learn

Reasons for cancelling an ABN
An Australian Business Number (ABN) is a unique 11-digit number that identifies a business to the government and the community. It is necessary for businesses with an annual and GST turnover of more than $75,000 and when other businesses require it. It is also needed to purchase an Australian domain name.
Cancelling an ABN is a critical action that should be carefully considered and not taken lightly. It is important to understand the implications and follow the correct steps for cancellation. Here are some reasons why you might need to cancel your ABN:
- Change in business structure: If you change your business structure, you may need to cancel your ABN to ensure your ABN details reflect the nature of your business and whether it complies with regulatory requirements. For example, if you change from a sole proprietorship to a partnership, you must cancel your old ABN and obtain a new one.
- Business closure or sale: If you close down or sell your business, you will need to cancel your ABN. This includes ceasing operations or carrying on business outside Australia.
- Merger or acquisition: If you enter a merger with or acquire a new business, you will need a new ABN and must cancel your previous one.
- Incorrect registration: If your ABN was incorrectly registered, you must cancel it and obtain a new one.
- Non-compliance with legal requirements: If your business no longer meets the legal requirements for an ABN, you may need to cancel it.
- Eligibility criteria: If your business no longer fits the eligibility criteria for an ABN, you may need to cancel it.
It is important to note that cancelling your ABN can impact your business's relationship with government entities and its reputation. Therefore, it is recommended to settle all outstanding matters, including tax obligations and closing your PAYG account, before initiating the cancellation process.
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Cancelling an ABN online
Cancelling your ABN, or Australian Business Number, is a critical action that should not be taken lightly. Before initiating the cancellation process, it is important to understand the implications and ensure that you fulfil any outstanding obligations, such as settling tax debts, closing pending transactions, and updating ABN details.
To cancel your ABN online, you can follow these steps:
- Go to the Australian Business Register (ABR) website.
- Navigate to the online service section and click on "Update ABN details".
- Log in using your MyGovID and credentials.
- Go to the section where you can manage your ABN.
- Select the "Cancel ABN" option.
- Fill in the required details, carefully reviewing all the information before submission.
The cancellation will typically be effective immediately, but it can take up to two business days to reflect in the ABR records. Alternatively, you can download and fill out the "'Application to Cancel Registration' form" (NAT number 2955) and submit it through the ABR website or the Australian Taxation Office (ATO).
It is important to note that cancelling your ABN may result in the termination of authorised relationships with MyGovID and impact your access to certain digital services. Therefore, careful consideration of your business circumstances, legal obligations, and compliance with government regulations is crucial before initiating the cancellation process.
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Cancelling an ABN over the phone
Cancelling your ABN is not a mere formality but a critical action that should be taken when closing or changing your business. It involves careful consideration and several important actions to ensure compliance with government regulations. Before initiating the cancellation process, it is important to understand what an ABN is and how it relates to your business. An ABN, or Australian Business Number, is an 11-digit number that identifies your business to the government and the community. It is necessary for tax compliance, interacting with other businesses, and purchasing an Australian domain name.
If you decide to cancel your ABN, you can do so over the phone by calling the Australian Business Register (ABR) on 13 92 26 between 8 am and 6 pm, Monday to Friday. The individual making the request needs to be authorised to update ABN details on behalf of the business, and proof of identity may be required. Alternatively, you can ask a registered tax agent or BAS agent to cancel your ABN on your call.
Before cancelling your ABN, it is important to fulfil any outstanding tax obligations to avoid potential penalties or legal issues. This includes settling any PAYG withholding, GST, and other tax liabilities, as well as closing your PAYG account. You should also notify relevant parties, such as clients, suppliers, and stakeholders, about the closure of your business and ensure all financial matters are resolved.
Once you have decided to cancel your ABN and fulfilled all necessary obligations, you can proceed with the cancellation process. After a successful cancellation, your ABN will be shown as 'cancelled' on the ABN Lookup website, and you can apply to have it reactivated if needed.
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Required documentation
Before initiating the cancellation of your Australian Business Number (ABN), it is important to gather the necessary documentation to ensure a smooth and efficient process. Here is a list of documents and information you may need:
- Application to Cancel Registration form (NAT number 2955): This form can be obtained online or from the Australian Taxation Office (ATO). It is a crucial part of the cancellation process and must be completed and lodged with the ATO within the specified timeframe.
- Business Name and Records: If you have changed your business name, ensure that your business records are updated accordingly. The new name should be reflected in the cancellation documentation to maintain consistency and avoid any delays in the process.
- Tax File Number (TFN): Your TFN may be required during the cancellation process to verify your identity and ensure compliance with tax regulations. Keep this information handy, as it is essential for maintaining accurate tax records.
- Outstanding Tax Obligations: Before proceeding with the cancellation, it is important to fulfil any outstanding tax obligations, including Goods and Services Tax (GST), Pay as You Go (PAYG) instalments, GST credit refunds, and income tax. Settling these obligations will help you avoid potential legal penalties and ensure a smooth transition.
- Activity Statements: You may need to lodge and submit any overdue activity statements as part of finalizing your business operations. This is an important step to provide a complete record of your business activities to the relevant authorities.
- Employee Tax Withholdings: Ensure that any unpaid employee tax withholdings are addressed. This is crucial, as the Australian Business Register (ABR) may inquire about these withholdings if you cancel your ABN without resolving them.
- Business Closure Notification: If you are ceasing operations, you must notify relevant parties, such as clients, suppliers, and stakeholders, about the closure of your business. This step ensures that all stakeholders are informed and that you are complying with regulatory requirements.
By preparing these documents and addressing the relevant obligations, you can proceed with the cancellation of your ABN, ensuring compliance with government regulations and maintaining a positive business reputation. Remember to carefully review your business circumstances and seek professional advice if needed to navigate the ABN cancellation process effectively.
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Outstanding obligations
When cancelling your Australian Business Number (ABN), it's important to ensure that you fulfil any outstanding obligations to avoid legal and financial implications. Here are the key considerations:
Tax Obligations
Make sure all tax returns are up to date and lodged with the Australian Taxation Office (ATO). This includes income tax, Goods and Services Tax (GST), PAYG withholding, Fringe Benefits Tax (FBT), and any other relevant taxes. Settle any
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Frequently asked questions
ABN stands for Australian Business Number. It is a unique 11-digit number that serves as a public identity for your business in Australia and is used for various business activities, such as invoicing, taxation, and other government transactions.
You should cancel your ABN when your business stops operations or undergoes a structural change. You may also need to cancel your ABN if you no longer meet the eligibility criteria or legal requirements.
First, ensure you understand the implications and fulfil any outstanding obligations, such as settling tax debts and closing your PAYG account. Then, you can cancel your ABN online through the ABR website, by phone, or with the help of a tax agent.
It typically takes around 28 days to cancel an ABN, and the cancellation is usually effective immediately. However, it can take up to two business days to reflect in the ABR records.
Yes, you can reactivate your ABN if your business starts again, but you will need to re-apply through the Australian Business Register (ABR).

















