How to Get an ABN

Luke Newman
Apr 23
3 min read

How to Get an ABN in Australia: A Step-by-Step Guide

If you're starting a small business, working as a freelancer, or setting up as a sole trader in Australia, one of your first steps is to register for an Australian Business Number (ABN). An ABN is an 11-digit number that uniquely identifies your business to the government and the community. It’s essential for invoicing, tax purposes, and accessing benefits like the Goods and Services Tax (GST) system.

Here’s everything you need to know about getting an ABN—simple, clear, and stress-free.

✅ What Is an ABN and Why Do You Need One?

An ABN is issued by the Australian Business Register (ABR) and is used for:

Invoicing clients and receiving payment
Registering a business name
Claiming GST credits
Avoiding pay-as-you-go (PAYG) tax on payments you receive
Working with government agencies and applying for grants

If you're operating as a sole trader, company, partnership, or trust, you’ll likely need an ABN.

📝 Step-by-Step: How to Apply for an ABN

1. Gather the Required Information

Before you begin, make sure you have:

Your Tax File Number (TFN) – especially if you're applying as a sole trader
Your business structure (sole trader, company, partnership, etc.)
Details about your business activities (what you do, where, and how)
The date you intend to start trading
Your business address and contact details

2. Head to the Official Website

Go to the Australian Business Register website. Click “Apply for an ABN”.

3. Complete the Online Application

The form will take about 15-30 minutes to complete. You’ll be guided through a series of questions about:

Your identity (linked to your TFN)
The type of enterprise you're setting up
Your business activities (with industry codes)
Whether you need to register for GST or PAYG withholding

4. Submit and Receive Your ABN

Once submitted, you’ll usually receive your ABN immediately via email—unless your application needs to be reviewed. In that case, it may take up to 28 days.

You’ll also get the option to:

💡 Tips for a Smooth ABN Application

Double-check your details – Especially your TFN and business structure.
Be specific about your activities – This affects your business industry code (ANZSIC).
Register for GST if needed – You must register if your turnover exceeds $75,000.

🚫 Who Doesn’t Need an ABN?

You don’t need an ABN if:

You’re working as an employee
You’re doing a one-off hobby project (not seeking payment)
You don’t plan to carry on a business or enterprise

🧾 What Happens After You Get Your ABN?

Once you have your ABN:

Add it to invoices and quotes
Use it when applying for business bank accounts, insurance, or funding
Keep your details updated through the ABR
Lodge tax returns appropriate to your business structure

👋 Final Thoughts

Getting an ABN is a key first step in launching your business journey in Australia. Thankfully, the process is free, straightforward, and can be done entirely online. Whether you’re a solo freelancer, creative entrepreneur, or launching a startup, your ABN is your official ticket to working as a legitimate business.

Got questions about business setup, GST, or sole trader life? Drop them in the comments or check out our other small business guides!