Establishing a small business is less about one big launch day and more about getting a short list of decisions right, in the right order. Choose your structure, get your Australian Business Number (ABN), register your business name if you need one, sort out tax, and check your licences — then you can trade with confidence. This guide walks through each step in plain language, so you can see exactly what to do first and what can wait. The official business.gov.au site is a good place to double-check the current forms and fees before you lodge anything.
Quick answer: how to establish a small business
In short, establishing a small business usually means: (1) testing your idea and writing a simple plan, (2) choosing a business structure, (3) applying for an ABN, (4) registering a business name with ASIC if you trade under a name other than your own, (5) registering for the tax obligations that apply to you, (6) getting any licences or permits your industry needs, and (7) setting up a business bank account and basic bookkeeping. Most sole traders can work through the registrations online in a day or two; a company setup takes a little longer because it involves ASIC and director identification.
Step 1: Test the idea and write a simple plan
Before you register anything, get clear on what you will sell, who will buy it, and how you will make money. A one-page plan is enough to start: your product or service, your target customer, your price, your main costs, and how customers will find you. Talk to a few potential customers before you spend money on stock, a fit-out, or a website. This step also helps you pick the right structure, because a side hustle with low risk and a business that hires staff or signs leases are very different propositions.
Step 2: Choose your business structure
Your structure affects your tax, your personal liability, and how much paperwork you face. The four common options are:
| Structure | Best for | Watch out for |
|---|---|---|
| Sole trader | One-person businesses starting simply | You are personally liable for business debts |
| Partnership | Two or more people running a business together | Partners generally share liability; get a written agreement |
| Company (Pty Ltd) | Businesses wanting a separate legal entity | More setup cost, ASIC duties, and annual obligations |
| Trust | Specific asset-protection or tax-planning situations | Complex and usually needs professional advice |
Most first-time founders start as sole traders and move to a company later, when turnover, risk, or hiring grows. If you are unsure, a short chat with an accountant before you register can save an expensive restructure later. This article is general information only, not personal financial or legal advice.
Step 3: Apply for an ABN
An ABN is an 11-digit number that identifies your business to the government and to other businesses. You need one to register a business name, register for GST, and issue tax invoices. Applying for an ABN through the Australian Business Register is free — be wary of third-party sites that charge a fee for the same form. You will need your tax file number and details of your business activity, and you must be carrying on, or genuinely intending to carry on, a business rather than a hobby. Sole traders use their individual tax file number for tax; a company needs its own tax file number.
Step 4: Register your business name (if you need one)
If you trade under any name other than your own personal name, you generally need to register that business name with ASIC. You need an ABN first. Check the name is available on ASIC’s business names register, and also search trade marks, domain names, and social media handles so you do not build a brand you cannot use. From 1 July 2026, ASIC’s business name fee is $47 for one year or $108 for three years — fees are indexed each year, so check the current amount before you lodge. Remember two common traps: registering a business name does not give you ownership of the name the way a trade mark does, and it does not create a separate legal entity.
Step 5: Sort out your tax registrations
Tax is where many new owners get caught out, so deal with it at setup rather than at tax time:
- GST: You must register for GST once your GST turnover reaches $75,000 in a 12-month period. You can also register earlier voluntarily. Taxi and ride-sourcing drivers must register regardless of turnover.
- PAYG withholding: If you employ staff, you will need to withhold tax from their pay and report it.
- Business Activity Statements (BAS): If you register for GST, you will lodge BAS returns to report and pay GST and other obligations.
- Records: Keep tax records for at least five years. Good records from day one make BAS time and tax time far less painful.
Open a separate business bank account, even if you are a sole trader and it is not strictly required. Mixing personal and business money makes bookkeeping harder and tax time messier. For companies, a separate account is mandatory.
Step 6: Check licences, permits, and local rules
Licences depend on what you do and where you operate. Food businesses, trades, childcare, health services, and businesses selling alcohol all face specific requirements, and councils add their own rules for signage, footpath trading, and home-based businesses. The Australian Business Licence and Information Service (ABLIS) on business.gov.au lets you search by business type and location to build a list of what applies to you. Do this check before you sign a lease or take deposits — a missing permit can delay your opening by weeks.
Step 7: If you set up a company, complete the extra steps
A company is a separate legal entity registered with ASIC. You will receive an Australian Company Number (ACN), appoint at least one director who ordinarily resides in Australia, and sort out the company’s internal rules, usually through a constitution. Each director needs a director ID. From 1 July 2026, registering a proprietary company costs $636 and the annual review fee is $342 — both are indexed, so confirm the current figures on ASIC’s site. Companies also carry ongoing duties: keeping financial records for seven years, updating ASIC when details change, and passing an annual solvency resolution. If that sounds like a lot, that is a sign to weigh carefully whether you need a company yet.
Step 8: Set up insurance, bookkeeping, and basic contracts
Insurance is not exciting, but it protects everything you are building. At a minimum, consider public liability insurance if customers visit you or you visit them, professional indemnity insurance if you give advice, and cover for your stock and equipment. Put simple written terms in place for clients — what you will deliver, what it costs, when payment is due — and a privacy policy if your website collects personal information. For bookkeeping, pick one system and use it from the first invoice: an app or spreadsheet you actually update beats a perfect system you ignore.
Common mistakes to avoid
- Registering a business name and assuming you own the brand — a trade mark is a separate step.
- Paying a third-party site for a free ABN application.
- Skipping GST registration until turnover is well past $75,000.
- Trading without checking council or industry licences.
- Mixing personal and business money in one account.
- Choosing a company structure for a low-risk side business and then struggling with the compliance load.
Establishment checklist
- Business idea tested and a one-page plan written
- Structure chosen (sole trader, partnership, company, or trust)
- ABN applied for (free, via the Australian Business Register)
- Business name checked and registered with ASIC, if trading under another name
- Tax registrations completed: GST if required, PAYG if hiring
- Licences and permits checked via ABLIS and your local council
- Business bank account opened and bookkeeping started
- Insurance and basic client terms in place
Frequently asked questions
Do I need an ABN to start a small business?
If you are carrying on a business, you will almost always need an ABN — to register a business name, register for GST, and invoice clients properly. Without one, other businesses may withhold tax from payments to you at the top rate.
Can I trade under my own name without registering a business name?
Yes. If you trade under your own first name and surname, you generally do not need to register a business name. Any other trading name usually must be registered with ASIC.
How long does it take to establish a small business?
For a sole trader, the ABN and business name registrations can often be completed online within a day, though some applications take longer if identity checks are needed. Company registration and licence approvals can add days or weeks, depending on your industry.
Do I need a company to be a real business?
No. A sole trader is a real, legitimate business. A company is worth it when you want limited liability, a separate legal entity, or a structure that suits investors or growth — not simply to look more established.
How much does it cost to establish a small business?
An ABN is free. A business name costs $47 for one year or $108 for three years from 1 July 2026. Company registration costs $636 from the same date, plus an annual review fee. Your other costs — insurance, licences, and professional advice — depend on your industry.
Disclaimer: This article provides general information only and is not personal financial, tax, or legal advice. Fees, thresholds, and requirements change over time — check the current details on business.gov.au, the ATO, and ASIC before you act, and speak with a qualified accountant or adviser about your own situation.
