Setting up as a sole trader and the registration steps in order

You have decided to go it alone. Whether you are leaving a job to consult, selling handmade goods online, or picking up clients on the side, the quickest way to start trading in Australia is as a sole trader. It is the cheapest structure to register, there are no directors or shareholders to manage, and you keep every decision to yourself.

When you finish the steps in this guide you will hold an Australian Business Number (ABN), possibly a nationally registered business name, and the right tax registrations for your turnover. Two things people commonly assume turn out not to happen. An ABN does not replace your tax file number (TFN), and registering a business name does not create a separate legal entity or shield you from personal liability. You remain personally responsible for every debt and claim against the business.

Before you start: the prerequisites

The registration system is designed to be self-service, but a few things need to be in place before you open the first form. Work through this checklist first:

A tax file number: You cannot apply for an ABN without one. If you do not have a TFN, apply to the ATO before you start.
A structure decision: Choose sole trader, partnership, trust or company up front. The ABN, business name and tax registrations all attach to the structure you pick, and changing it later means cancelling and redoing registrations.
A trading name decision: If you trade under your own name, you do not need a business name. If you want to trade under another name, you must register it before you can use it.
Your identity details: The Australian Business Register checks who you are as part of the ABN application, so have your personal details ready.
A check on name availability: Before you fall in love with a business name, search the ASIC business names register and IP Australia's TM Checker to see whether someone already owns it as a business name or trade mark.

The structure decision is the one that trips most people up. ABN applications are answered quickly, which tempts applicants to apply first and think later. But the ABN is issued against the structure you declare, and a sole trader ABN cannot simply be converted into a company ABN when you incorporate later.

The registration steps, in order

The steps below follow the order the registration system itself imposes: the ABN comes first because the business name and GST registrations both require one.

Apply for your ABN through the Australian Business Register

The ABN is an 11-digit number that identifies your business to government and other businesses. It is free to apply for and does not replace your TFN.

To be entitled to an ABN you must be carrying on an enterprise, not merely running a hobby. The Australian Business Register publishes guidance on what counts, and it can review your entitlement at any time, so it pays to apply honestly and accurately. Here is what the application involves:

What you need: your TFN, your personal details, the type of structure, your main business activity and an expected start date.
What you get back: your ABN, usually issued immediately or within a few days, together with a registration summary you can use to prove you are a business.
Where to apply: online at the Australian Business Register, which takes around 15 to 20 minutes for a sole trader.

The ABN application is the same portal you will use to register for GST and other taxes, so it is worth completing everything in one sitting while your details are in front of you.

Register your business name with ASIC

If you plan to trade under a name other than your own legal name, you must register it on the national business names register run by ASIC. A business name is simply the name your business operates under, and registration is national, so there is no separate state or territory registration. The key details:

The fee: $47 for one year or $108 for three years, payable when you apply.
Processing time: around 10 to 15 minutes to apply online, with confirmation within two business days for credit card payment or five business days for BPAY or bank transfer.
What you must do after: display your business name wherever you do business and on written communications such as invoices and quotes. ASIC emails a renewal notice at least 30 days before expiry, and if you do not renew on time it may cancel the name.
What it does not do: registering a business name gives you no exclusive rights to it. If you want to stop competitors using a similar name, you need a registered trade mark, which can be owned in your own name as an individual.

The business name registration is authorised under the Business Names Registration Act 2011 (Cth) and the fees are set under the Business Names Registration (Fees) Act 2011 (Cth), indexed each year from 1 July.

Register for GST and other taxes

Once you hold an ABN you can register for the taxes your business needs through the Business Registration Service. The main registrations are:

GST: You must register for GST once your GST turnover is $75,000 or more, or is likely to be. You have 21 days from the day you become required to register, and penalties can apply if you miss the window. Registration is voluntary below the threshold, which some sole traders choose so they can claim GST credits on business purchases.
PAYG withholding: If you hire employees, you must withhold tax from their pay and remit it to the ATO, and you may need to register for PAYG withholding.
PAYG instalments: The ATO may require you to pay instalments of your expected income tax during the year rather than in one lump sum at tax time.

The GST registration is made under the A New Tax System (Goods and Services Tax) Act 1999 (Cth), and the ATO explains the current $75,000 threshold and the 21-day rule on its GST registration pages.

Put the trading foundations in place

With the registrations done, the business legally exists. The next steps are practical but just as important, because as a sole trader you personally carry the risk of everything you sell and promise. Three areas deserve attention:

Banking: Open a separate business bank account so business income and expenses do not mix with personal money. It makes bookkeeping, activity statements and tax time far simpler.
Insurance: Consider public liability, professional indemnity or product liability cover depending on the work you do. There is no corporate veil to hide behind, so insurance is your main protection against claims.
Customer contracts: Put clear written terms in place before you take the first order. A terms of trade or service agreement covering scope, price, payment terms, late fees and cancellation protects your cash flow and sets expectations.

Consumer law applies to you from your first sale. The Australian Consumer Law (ACL), which is Schedule 2 of the Competition and Consumer Act 2010 (Cth), implies guarantees into consumer transactions that you cannot contract out of: goods must be of acceptable quality, fit for purpose and match their description, and services must be provided with due care and skill. An unfair term in a standard form consumer or small business contract is void, and since penalties were introduced for unfair contract terms, proposing or relying on an unfair term can itself be a contravention attracting a pecuniary penalty.

Privacy law is more forgiving for most sole traders. The Privacy Act 1988 (Cth) (the Act) generally applies to businesses with an annual turnover above $3 million. Under s 6D of the Act, a business is a small business if its annual turnover is $3 million or less, and small businesses are generally exempt from the Australian Privacy Principles. There are exceptions, including for health service providers and businesses that trade in personal information, so the exemption is not universal. Even where the Act does not apply, having a simple privacy policy is good practice when you collect names and email addresses.

Build your compliance calendar

The registrations are not a one-off event. Running a sole trader business means a repeating cycle of obligations, and missing a step attracts interest, penalties or loss of the name you trade under. The recurring obligations are:

Activity statements: If you are registered for GST, you lodge a business activity statement (BAS), usually quarterly, reporting GST collected and credits claimed.
Income tax: Your business income is reported in your individual tax return and taxed at your personal marginal rate. Keep records of income and expenses so the return is accurate and fast to prepare.
Superannuation: If you employ staff, you must pay superannuation guarantee for them, at the rate of 12% of ordinary time earnings from 1 July 2025. You do not pay super for yourself, so set up your own contributions.
Renewals: Business name registration, trade marks, insurance policies and any industry licences all renew on their own cycles. Put them all in one calendar so nothing lapses.

Where people get held up

Even with the steps laid out, the same stumbles appear again and again:

Applying for the ABN before deciding the structure: The ABN belongs to the structure you declare. Switching from sole trader to company later means cancelling the old ABN and registering a new one, and redoing contracts and registrations in the company's name.
Assuming the business name protects the brand: A business name registration is not a trade mark. If you do not register a trade mark, a competitor can lawfully trade under a confusingly similar name.
Missing the GST window: The 21-day clock starts the moment your turnover hits $75,000 or you expect it to. Late registration means GST you should have collected becomes payable, plus penalties.
Trading before the paperwork lands: Taking orders or using a business name before ASIC confirms the registration leaves you exposed if the name is rejected or a dispute arises in the gap.

Where a lawyer helps

Nothing in the registration process requires a lawyer; the forms are designed for you to complete yourself. Legal help becomes valuable at the points where a mistake is expensive to fix:

Structure advice: A lawyer can talk through whether sole trader, company or trust suits your liability exposure, tax position and growth plans before you lock the structure in with an ABN.
Contract drafting: A terms of trade or service agreement that reflects the ACL, covers payment and late fees, and does not contain unfair terms is the document most sole traders never get around to. Having one drafted, or reviewing a template, is a small cost against a payment dispute.
Trade marks and IP: Checking that your brand is available, filing the trade mark application and dealing with objections is where practitioners add real value.
Employment paperwork: If you take on staff, an employment contract and policies need to comply with the Fair Work system, minimum rates and leave entitlements.
Privacy compliance: If your turnover exceeds $3 million, or you fall within one of the exceptions, a lawyer can assess what the Australian Privacy Principles require and draft the necessary policy.

The structure decision sets everything else in motion

The single step most likely to determine whether your registration goes smoothly happens before you open the ABN form: choosing your structure. The ABN, the business name, the tax registrations and even your contracts all attach to that decision, and every one of them has to be redone if you pick wrong and change later. Spend the time on this one decision, and the rest of the process is genuinely a matter of following the forms in order.

For most people starting out, the sole trader structure is the right call. It is free to register, simple to run and easy to wind up. The trade-off is that you personally carry the business's debts and legal exposure, so the practical steps matter: separate banking, insurance, written terms, and a compliance calendar that keeps your registrations, returns and renewals current. Get those in place alongside the ABN, and you have a solid foundation to trade on.