Business Registration in Australia: ABN, GST & Licenses Explained

Starting a business in Australia requires understanding three essential pillars: your ABN, GST obligations, and the licences your specific industry requires. Many new entrepreneurs feel overwhelmed by these steps, but when broken down clearly, the process is far more straightforward than it appears. This guide walks you through everything you need to know, tailored specifically for NSW-based business owners. Visit NSW Business Today

ABN: Australian Business Number

What Is an ABN?

An ABN is a unique 11-digit number that identifies your business to the government, other businesses, and the general public. It is separate from your Tax File Number (TFN).business. Learn more about ABN registration at NSW Business Today

Why Do You Need One?

If you operate without an ABN, any business that pays you is required to withhold tax at the top marginal rate: currently 47% and send it to the ATO. Having an ABN also unlocks GST registration, which you’ll need once your turnover reaches the threshold. Baronaccounting

Who Is Eligible?

To be eligible for an ABN, you must be carrying on or starting an enterprise in Australia. Australian Business Register Key criteria include:

• Operating a commercial enterprise with the intent to make a profit; conducting regular business activities (not just a one-off or hobby); having a genuine business presence in Australia. Abbregistrar

How to Register

ABN registration is completely free and can be completed online in around 10–15 minutes. Most sole traders receive their ABN instantly, while companies and partnerships may wait up to 28 days. Abbregistrar

What you’ll need: Your Tax File Number (TFN), full legal name, date of birth, residential address, and contact details. Abbrevistrar

Where to apply: Apply for free through the Australian Business Register at business.gov.au

Use the Business Registration Service to apply for your ABN, GST registration, and Business Name all in one place. Business Registration Service

GST Goods and Services Tax

What Is GST?

GST is a 10% tax applied to most goods and services sold in Australia. ITP As a registered business, you collect this tax from customers and pass it on to the ATO through regular reporting.

When Is GST Registration Mandatory?

You must register for GST when your business’s GST turnover, your total revenue minus GST, reaches or is likely to reach $75,000 per year. Australian Taxation Office

An important distinction: GST turnover refers to your gross income, not your net profit. For example, if you invoice clients $80,000 but have $30,000 in expenses, your GST turnover is $80,000, meaning you’ve crossed the threshold and registration is compulsory. Lawdocs

Special Cases

Ride-share and taxi operators (such as Uber or DiDi) must register for GST from their very first dollar of income; the $75,000 threshold does not apply to them. For non-profit organisations, the registration threshold is $150,000.Nanak Accountant

Registration Deadline

Once you reach the threshold, you must register within 21 days. Failing to do so can result in penalties and liability for GST on past sales. Australian Taxation Office

Business Activity Statements (BAS)

Once registered for GST, you’ll lodge BAS reports regularly. Reporting frequency depends on your turnover: monthly for businesses turning over more than $20 million; quarterly for businesses between $75,000 and $20 million. Taxually

Should You Register Voluntarily?

Even if your turnover is below the threshold, you can voluntarily register for GST, which allows you to claim GST credits on eligible business purchases.ITP: This can be financially beneficial for businesses with high upfront costs.

Business Licences in NSW

Why Licences Matter

Operating without the correct licences can expose your business to heavy fines, forced closure, or legal action. Ourtaxpartner Getting this right from the start protects your business and your reputation.

Australia’s Three-Tier Licensing System

Licensing in Australia operates across three levels of government: at the Federal level, every business needs an ABN (and companies need an ACN); at the State/Territory level, industry-specific licences apply; and at the Local Council level, matters like signage, waste disposal, and food safety are managed. Commenda

Common NSW Industry Licences

Any food-serving business in Sydney must notify the NSW Food Authority and obtain a Food Business Licence from their local council. Businesses serving alcohol must hold a licence from Liquor & Gaming NSW. Commenda

Typical Licence Costs

Costs vary depending on the type of licence and location. Business Name Registration costs $45 for one year or $104 for three years. Food and hospitality licences typically range from $200–$700, while construction licences can cost between $400 and $2,000. Commenda

How to Find Out Which Licences You Need

https://ablis.business.gov.au/

Use ABLIS (ablis.business.gov.au). This tool identifies all required licences, permits, and approvals across all three levels of government: Commonwealth, State/Territory, and Local Council. Australian Business Licence and Information Service

Starting a Business in NSW

Decide on your business structure (Sole Trader, Partnership, or Company)

Register for your ABN for free at or through the Business Registration Service business.gov.au

Monitor your turnover and register for GST before or as soon as you reach $75,000

Use the ABLIS tool to identify every licence and permit your business type requires. Australian Business Licence and Information Service

Contact the Service NSW Business Bureau for personalised, one-on-one guidance on licences and permits. Service NSW

Official Resources

Getting your ABN, understanding your GST obligations, and securing the right licences are not just legal formalities; they are the foundations of a credible, protected, and scalable business. NSW is one of Australia’s most dynamic business environments, and starting on the right regulatory footing puts you in the best position to grow with confidence.