What Is an ABN, and How to Apply for One: A Step-by-Step Guide for Australian Entrepreneurs
- Marketing Manager
- Jul 30
- 3 min read

Introduction
If you're starting a business in Australia, one of the first steps you'll need to take is to apply for an Australian Business Number (ABN). This 11-digit identifier is essential for registering your business with the Australian Taxation Office (ATO) and allows you to conduct business legally in Australia. Whether you're a sole trader, contractor, or small business owner, an ABN is the key to unlocking your business's potential.
What Is an ABN?
An ABN is a unique identifier that the ATO issues to businesses operating in Australia. It helps you deal with the government, including the ATO, and allows you to register for GST, claim tax credits, and manage payroll taxes. If you’re planning to register your business, you must have an ABN before you can issue invoices, apply for business funding, and register for other taxes like GST or PAYG.
Why You Need an ABN
Legality: Without an ABN, your business can’t legally operate in Australia.
GST Registration: If your business earns over the GST threshold of $75,000 per year, you'll need an ABN to register for GST.
Tax Benefits: An ABN allows you to claim tax credits, including GST on purchases and expenses incurred during business operations.
Business Branding: An ABN lets you register a domain name and business name, and it adds legitimacy to your business in the eyes of customers.
Step-by-Step Guide to Applying for an ABN
Step 1: Verify Your Eligibility Before you apply, make sure you meet the eligibility criteria for an ABN:
You need to be operating a business or planning to.
You must have a business structure (sole trader, partnership, or company).
Your business must be registered in Australia.
Step 2: Gather the Required Information You will need the following details to complete the application:
Personal identification details (e.g., driver’s license, passport).
Business structure details (sole trader, partnership, or company).
Business address and contact information.
Your business activity and industry code (use the Australian Business Industry Classification).
Step 3: Apply Online Visit the official Australian Government website (ABR – Australian Business Register) to apply for an ABN. The online process is quick and straightforward:
Complete the online application form.
Answer questions regarding your business activities.
Submit your details and receive your ABN instantly in most cases.
Step 4: Wait for Approval If you apply online, you'll often receive your ABN immediately. In some cases, further information may be required, and the approval process could take several days. If you’re unsure or have questions during the application, you can always reach out to your accountant or a business advisor.
Common Mistakes to Avoid When Applying for an ABN
Using an incorrect business name: Ensure the name you use is available and compliant with ASIC regulations.
Not updating your business details: Keep your ABN and business information up to date with the ATO to avoid compliance issues.
Failure to apply for GST when required: If your annual revenue exceeds the $75,000 threshold, make sure you apply for GST registration when you get your ABN.
How to Keep Your ABN Up to Date
Once you have your ABN, it’s essential to maintain it. This means:
Updating your ABN details: If you change business addresses, email, or structure, inform the ATO immediately.
Renewal: Your ABN doesn’t expire, but you should review your business information regularly to stay compliant.
Conclusion: Get Your ABN Today to Start Your Business on the Right Foot
An ABN is a vital first step in launching your business in Australia. With it, you can operate legally, access tax benefits, and establish your business identity. Ready to start? Apply for your ABN today and begin building your business with confidence.
Apply for Your ABN Now




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