Registering an Australian Business Number (ABN) is often the first step for non-resident businesses wanting to operate in Australia. This guide explains what is an ABN, when you need an ABN, the requirements for applying, what comes with an ABN, the advantages it offers to non-resident businesses expanding into Australia, and how to keep your ABN details current.
What is an ABN?
An ABN is a unique 11-digit identifier that simplifies interactions between businesses and government agencies. For international companies, it is often the first step towards establishing a legitimate presence in Australia.
Do you need an ABN?
You will generally need an ABN if your business will:
Provide products or services directly to customers (whether individuals or other businesses)
Actively source your own clients or customers
Set prices and invoice for your goods or services
Maintain a separate business bank account and insurance cover (such as public liability or WorkCover)
Declare and report all business income, even if your earnings are below the Australian tax-free threshold
Requirements for obtaining an ABN
To apply for an ABN, you will need the following:
Your business structure (e.g., sole trader, partnership or company).
Proof of identity.
Details of your business activities and associates.
You can apply for an ABN by consulting a registered tax agent, such as ABN Australia, who can guide you through the process.
What comes with an ABN?
Once your Australian subsidiary or foreign business is registered, an ABN brings ongoing obligations beyond just holding the number itself. You may need to:
Register for Goods and Services Tax (GST)
Lodge regular Business Activity Statements (BAS)
Register for Pay As You Go (PAYG) withholding if employing staff – and meet superannuation requirements
Comply with other Australian federal, state or territory laws – such as payroll tax, workers’ compensation or special licences
Key benefits of an ABN for non-residents
Below are the key advantages of having an ABN for non-residents expanding their businesses to Australia:
Streamlining tax obligations
An ABN is essential for registering with key Australian tax systems, ensuring compliance and enabling efficient tax management. It is required for:
Goods and Services Tax (GST)
If your annual turnover exceeds $75,000, GST registration becomes mandatory.
Pay As You Go (PAYG) withholding
This system is used for withholding tax on payments made to businesses.
By fulfilling these tax requirements, businesses can avoid penalties and operate smoothly in the Australian market.
Ensuring invoice and payment compliance
Quoting your ABN on invoices is vital when dealing with Australian businesses. Without an ABN, your clients may be obligated to withhold 47% of payments under the PAYG system. This withholding can disrupt your cash flow and create unnecessary financial burdens. By including your ABN on invoices, you ensure compliance and safeguard your income.
Enhancing credibility and trust
Displaying an ABN on your business documents and communications signals legitimacy to clients, partners and government authorities. This transparency fosters trust, making it easier to build strong relationships and establish your presence in the competitive Australian marketplace.
Claiming tax credits and grants
An ABN unlocks access to several financial benefits, including:
The ability to claim GST credits for goods and services purchased for your business.
Eligibility to apply for energy grant credits.
Access to other relevant tax benefits that can reduce costs and support growth.
These incentives can provide significant financial advantages, especially for new entrants into the market.
Securing an Australian (.au) domain name
An ABN also allows businesses to register an Australian domain name. Having an Australian (.au) domain demonstrates your commitment to the local market and boosts your credibility amongst Australian consumers. A localised domain enhances your brand's appeal, helping you stand out in a competitive digital landscape.
Keeping your ABN details current
Once you have your ABN, staying compliant means keeping your records up to date. You will need to notify authorities promptly if you:
Add or cancel tax registrations (such as PAYG for new employees)
Change your business details (address, authorised contacts, etc.)
Cease operating – requiring ABN cancellation and finalising your business obligations (lodging final tax returns, clearing tax debts and so on)
How ABN Australia supports you
Our team simplifies every step of your business journey. We help you understand whether you are eligible for an ABN, guide you through the registration process and manage any required tax registrations along the way. Beyond that, we ensure you stay on top of ongoing obligations and compliance requirements.
Whether acting as your local agent, resident public officer or ASIC agent, we provide trusted local representation for your business in Australia. And as your operations evolve, we help keep your ABN and registrations up to date, so you can stay compliant and focused on growth.
We provide more than just basic assistance. You will benefit from hands-on guidance, commercially focused insights and a level of local expertise that only comes from years of helping international businesses successfully establish and grow in Australia.
Let us get your business off to the right start. Talk to ABN Australia today and let us handle the complexities, so you can focus on growing your business.
Last updated: 26 Sep 2025
About the Author
Ro Elvinia is ABN Australia's Customer Success and Marketing Manager. She holds a bachelor’s degree in mass communication, majoring in journalism, and also has an academic background in civil engineering. With over a decade of experience in professional writing and a background spanning journalism, Australian immigration, and business services, Ro brings a unique mix of communication and analytical expertise. She works closely with international clients and contributes to ABN Australia's content strategy, helping global businesses stay informed and confident as they navigate the Australian market.
