How to Get an ABN and Register Self-Employed

What is an ABN and Why You Need One in Sydney

An Australian Business Number (ABN) is a unique 11-digit identifier issued by the Australian Taxation Office (ATO) to businesses operating in Australia. If you are self-employed in Sydney or anywhere else in Australia, you will almost certainly need an ABN. Whether you are a freelancer, contractor, consultant, tradesperson, or small business owner, an ABN is essential for invoicing clients, paying tax, and operating legally.

Many new migrants and workers in Sydney do not realise that working as self-employed without registering is not only illegal but can result in significant penalties. The ATO actively monitors unregistered businesses, and you could face fines, back taxes, and interest charges. Getting an ABN is straightforward, free, and takes only a few minutes online.

You need an ABN if you are carrying on a business for profit, even if you work part-time or from home. This includes freelance writing, graphic design, personal training, consulting, repairs, cleaning, tutoring, and countless other services. If you earn more than AUD 75,000 per year from self-employment, you must also register for Goods and Services Tax (GST), which is a separate process.

How to Apply for an ABN Online

The easiest way to get an ABN is through the Australian Business Register (ABR) website. The process is free and takes about 10 minutes. Here is the step-by-step process:

1. Go to www.asic.gov.au/online-services/australian-business-register/ or search for "Australian Business Register" online.
2. Click on "Apply for an ABN" or "Register a business".
3. You will be asked for your personal details: full name, date of birth, and residential address in Australia. You must have an Australian address to apply.
4. Enter your business details: business name, business type, and the main activity your business will undertake (for example, "freelance writing" or "personal training").
5. Provide your contact details: phone number and email address.
6. Confirm your details and submit the application.
7. Your ABN will be issued immediately and displayed on screen. Write it down or take a screenshot.
8. You will receive a confirmation email with your ABN and a letter in the post within 7 to 10 business days.

If you do not have an Australian address yet (for example, if you have just arrived in Sydney), you can use a temporary address such as a hostel, hotel, or friend's address. However, you must update your address with the ATO once you have permanent accommodation.

You do not need to be an Australian citizen or permanent resident to apply for an ABN. Temporary visa holders, including students and working holiday makers, can register as self-employed. However, be aware that your visa conditions may restrict the type of work you can do. Always check your visa conditions before starting self-employment.

Tax Registration and GST Obligations

Once you have your ABN, you need to understand your tax obligations. Every self-employed person in Australia must lodge a tax return with the ATO each financial year, even if you made a loss or earned very little income.

The Australian financial year runs from 1 July to 30 June. Your first tax return is due by 31 October of the following year (for example, if you started self-employment on 1 August 2025, your first return covering 1 August 2025 to 30 June 2026 is due by 31 October 2026). You can lodge your return online through myTax or with the help of a tax agent.

If your annual turnover exceeds AUD 75,000, you must register for Goods and Services Tax (GST). GST is a 10% tax added to most goods and services in Australia. Once registered, you must charge GST on your invoices and lodge GST returns with the ATO, usually quarterly. You can claim back GST you have paid on business expenses. If you are below the AUD 75,000 threshold, GST registration is optional but can be beneficial if you have significant business expenses.

To register for GST, you can do so at the same time as applying for your ABN, or separately through the ATO website. Visit www.ato.gov.au/business/gst/registering-for-gst/ for detailed information.

Record Keeping and Invoicing Requirements

As a self-employed person with an ABN, you are required to keep detailed records of all your income and expenses. The ATO expects you to maintain records for at least five years. This includes invoices, receipts, bank statements, and any other documents that show your business income and costs.

When you invoice clients, you must include your ABN on every invoice. Your invoice should also show the date, a description of the work or goods provided, the amount charged, and your business name. If you are registered for GST, you must show the GST amount separately on your invoice.

Many self-employed people use accounting software such as MYOB, Xero, or Wave to track income and expenses. These tools make it much easier to prepare your tax return and stay compliant. Some software is free for small businesses, while others charge a monthly fee.

Keep all receipts for business expenses such as equipment, software, phone bills, internet, office supplies, and professional development. These expenses can be claimed as deductions against your income, which reduces the amount of tax you pay. However, you can only claim expenses that are directly related to earning your income.

Superannuation for Self-Employed Workers

Unlike employees, self-employed people do not automatically receive superannuation contributions from their employer. However, you can and should contribute to your own superannuation fund to save for retirement.

You can make voluntary contributions to your superannuation account. These contributions may be tax-deductible, which means you can claim them as a deduction on your tax return. The annual contribution cap is AUD 27,500 (as of 2026). Contributions above this amount may be subject to additional tax.

If you are self-employed and earning income, you can also claim a tax deduction for personal superannuation contributions. This is done on your tax return. Speak to a tax agent or accountant if you want advice on superannuation strategy for self-employed workers.

Common Mistakes to Avoid

Many new self-employed workers in Sydney make preventable mistakes. Here are the most common ones:

• Working without an ABN: This is illegal and can result in fines and back taxes. Register immediately if you are self-employed.
• Not keeping records: The ATO expects detailed records. Without them, you cannot prove your income or claim deductions.
• Forgetting to lodge a tax return: You must lodge a return every year, even if you earned very little or made a loss.
• Not separating personal and business expenses: Keep a separate bank account for your business to make record keeping easier.
• Ignoring GST obligations: If you exceed the AUD 75,000 threshold, you must register for GST. Failing to do so is illegal.
• Claiming personal expenses as business deductions: Only claim expenses that are directly related to earning your income.
• Not understanding visa restrictions: Some visa types limit the type of self-employment you can do. Check your visa conditions.

Getting Help and Support

If you are unsure about any aspect of self-employment, the ATO provides free information and support. You can call the ATO on 13 28 66 (within Australia) or visit their website for detailed guides on self-employment, tax obligations, and record keeping.

Many accountants and tax agents in Sydney specialise in helping self-employed workers and small business owners. While this costs money, it can save you time and help you minimise your tax liability legally. Some community organisations also offer free or low-cost business advice to new migrants.

The Australian Small Business Loans Company and Business NSW also provide resources and support for people starting self-employment. These services are often free or low-cost.

Sources

• Australian Business Register (ABR) - Apply for an ABN
• Australian Taxation Office - Registering for GST
• Australian Taxation Office - Self-Employment Information
• Business.gov.au - Australian Government Business Resources

Frequently Asked Questions

How long does it take to get an ABN in Australia?

Your ABN is issued immediately when you apply online through the Australian Business Register. You will see your 11-digit number on screen straight away. A confirmation letter will arrive in the post within 7 to 10 business days.

Do I need an ABN if I earn less than AUD 75,000 per year?

Yes, you need an ABN if you are carrying on a business for profit, regardless of how much you earn. The AUD 75,000 threshold only applies to GST registration, not ABN registration. However, you must still lodge a tax return each year.

Can temporary visa holders like students get an ABN in Sydney?

Yes, temporary visa holders can apply for an ABN. However, check your visa conditions first, as some visa types restrict the type of self-employment you can do. Student visas, for example, have limits on work hours and type of work allowed.

What is the difference between an ABN and GST registration?

An ABN is a business identifier required for all self-employed people. GST registration is only required if your annual turnover exceeds AUD 75,000. GST is a 10% tax you must charge on invoices and remit to the ATO.

Do I need to register for GST when I get my ABN?

Only if your annual turnover will exceed AUD 75,000. If you expect to earn less than this, GST registration is optional. You can register later if your income grows above the threshold.

What records do I need to keep as a self-employed person?

Keep all invoices, receipts, bank statements, and documents showing your business income and expenses for at least five years. Use accounting software or a spreadsheet to track income and costs, and keep receipts for all business deductions.

How do I lodge my tax return as a self-employed person in Australia?

Lodge your tax return online through myTax (the ATO's free online tool) or with a tax agent. Your return is due by 31 October each financial year. You can also use accounting software that integrates with the ATO.

Can I claim superannuation contributions as a tax deduction if I am self-employed?

Yes, you can make voluntary superannuation contributions and claim them as a tax deduction on your return. The annual cap is AUD 27,500 (as of 2026). Speak to a tax agent for advice on superannuation strategy.

This is general information only. It is not legal, migration, financial, tax, medical, or professional advice. Always check official sources before acting.