How to Start a Business in South Australia in 2026: Registrations, Licences, ReturnToWorkSA and Payroll Tax

South Australia is a straightforward place to start a business on paper: registrations are national, the payroll tax threshold is one of the higher ones in the country, and the state's work injury scheme lets very small employers skip registration altogether. The friction is in the detail — CBS licensing for builders and tradies, council food notification, and timing your ReturnToWorkSA registration. This guide is for anyone setting up in SA in 2026, whether that's a sole-trader plumber in Mount Barker, a café company in Norwood or an online store in Whyalla. It takes each step in order, flags what is South Australian, and works through examples in A$.

Quick answer

To start a business in South Australia: choose a structure, get a free ABN and register a business name or company nationally, then check which CBS licences and council approvals apply. Notify your council before selling food, register with ReturnToWorkSA within 14 days of employing (unless 2026-27 wages stay under A$16,806), and register for payroll tax only once Australian wages pass A$1.5 million a year.

• ABN free; business name A$47 a year; company A$636

• Building work for others needs a CBS contractor licence, whatever the job size

• ReturnToWorkSA average premium rate 1.85% for 2026-27

• Payroll tax rate rises to 4.95% between A$1.5 million and A$1.7 million

• Free referrals on the Business Information Line, 8429 3801

What's national and what's South Australian

You don't register a business "with South Australia". Business names moved to a national ASIC register in 2012, and ABNs, companies, GST and PAYG withholding are federal. So the first half of the job — structure, ABN, name, company, tax registrations — is the same in Adelaide as anywhere else. Our national guide on how to start a business in Australia covers it step by step.

The South Australian layer is made up of occupational and activity licences, most of them issued by Consumer and Business Services (CBS); council approvals for premises and food; ReturnToWorkSA work injury insurance; payroll tax through RevenueSA; and the state's small business support services. Since 2010, South Australia's private-sector employers — sole traders included — have been in the national Fair Work system, so wages and employment conditions are national too.

Starting a business in SA, in order

Step 1

Choose a structure

Step 2

ABN + business name or company

national

Step 3

CBS and other licences

check ABLIS

Step 4

Council approvals

planning, food notification

Step 5

Bank, insurance, ReturnToWorkSA

within 14 days of hiring

Step 6

Payroll tax

only above A$1.5m

Step 1: Choose a structure

Most South Australians start as a sole trader: you trade under your own ABN and tax file number, pay individual tax rates and keep everything simple, but you carry unlimited personal liability. A company separates the business from you, generally limits your liability and pays 25% if it's a base rate entity — in exchange for ASIC fees, director duties and annual compliance. Partnerships and trusts round out the usual options. Our business structures guide compares them side by side.

The choice matters for licensing in SA. If a company or partnership carries on building or other licensed work, the business itself usually needs a licence, plus a registered individual to supervise. Business partners who never organise or carry out the work can apply for an exemption as non-active partners. For ReturnToWorkSA, a company that pays its working directors wages has those wages counted when it decides whether to register.

Step 2: National registrations

Apply for your ABN through the Business Registration Service. It costs free and is often issued on the spot online, but it can take up to 20 business days if the ATO needs to check your application — see our ABN registration guide for what gets applications rejected. If you trade under a name other than your own, register a business name for A$47 a year or A$108 for three.

To incorporate, register a company with ASIC for A$636 once every director has a director ID. Register for GST within 21 days of your turnover reaching, or being expected to reach, A$75,000, and for PAYG withholding before your first pay run. Then open a separate business account; our business bank account guide lists what banks ask for.

Step 3: South Australian licences

Use ABLIS, the Australian Business Licence and Information Service, to list the licences for your activity and council area. In SA, CBS handles most occupational licensing — builders, plumbers, gasfitters, electricians, second-hand vehicle dealers, security agents and land agents — as well as liquor licensing.

Building work

Unlike several other states, South Australia has no dollar threshold below which you can contract for building work without a licence. Anyone who carries out building work for others, or builds to sell or let, needs a building work contractor's licence from CBS, and all building work must be supervised by a registered building work supervisor. An individual who does the work personally needs both the contractor licence and supervisor registration; a company that only contracts work out must nominate a registered supervisor. Licences carry conditions on the kind of work, and sometimes the contract value, you can take on — contracting outside your conditions is an offence. Building indemnity insurance is a separate requirement for larger domestic jobs.

Food businesses

Under section 86 of the Food Act 2001, every food business must notify the right enforcement agency before it opens — for most businesses that's the council. You lodge a Food Business Notification (FBN), usually free of charge, and get a unique FBN number recognised across South Australia. If the business changes hands or its contact details change, tell the council within 14 days. Some councils ask for the form at least two weeks before you start handling food, and an environmental health officer will usually inspect your premises.

Cafés, restaurants, caterers and takeaways that handle unpackaged, ready-to-eat, potentially hazardous food are category one or two businesses under the national food safety standards. They must appoint a food safety supervisor before handling that food, train their food handlers, and keep records. The supervisor's certificate must be no more than 5 years old.

Step 4: Premises, planning and leases

South Australia's planning system runs through the Planning and Design Code, and most applications are lodged through the online PlanSA portal and assessed by your council. Before you sign a lease, check that your use is permitted in the zone and whether a change of use or fit-out needs development approval. Turning a shop into a café, gym or bar, or adding late-night trading or liquor, usually does. Councils also manage signs, outdoor dining on footpaths and trade waste.

Plenty of SA businesses start from home. Low-impact work — consulting, bookkeeping, design, online retail with modest deliveries — often needs no approval, but limits apply to signs, customer visits, staff who don't live there and floor area. Making food at home for sale needs a Food Business Notification and a kitchen that meets the food safety standards.

Retail and commercial leases in South Australia fall under the Retail and Commercial Leases Act 1995. The Small Business Commission SA runs low-cost mediation for lease disputes, disputes between businesses and disputes with government, on 1800 072 722. Get the disclosure statement, read the outgoings and make-good clauses, and take advice before agreeing to a personal guarantee.

Step 5: Insurance and ReturnToWorkSA

Arrange public liability insurance — landlords and councils often require it — and professional indemnity if your profession demands it. Work injury insurance is the cover most likely to be compulsory.

ReturnToWorkSA is the state's work injury insurer. If you employ workers who usually work in or are based in South Australia — even if your business is based interstate — you must register within 14 days of employing, and you may register before your first hire. There's a small-employer exemption: if you'll pay less than A$16,806 in total wages for 2026-27, you don't need to register. The catch is that if one of your workers is injured, you must then report the injury, register and pay the minimum premium. Registration asks for your ABN, ACN, owners' names, trust details if any, locations and estimated wages including super.

Premiums are calculated from your industry rate and remuneration. ReturnToWorkSA kept its average premium rate at 1.85% of remuneration for 2026-27, but your rate depends on your industry and, as you grow, your claims experience. Sole traders without workers aren't covered by the scheme, so look at personal accident or income protection cover. Our workers compensation guide compares all states.

South Australian numbers to know (2026)

A$1.5 million

Payroll tax registration threshold

A$125,000 a month

4.95%

Payroll tax rate above A$1.7 million

A$16,806

ReturnToWorkSA: wages below which no registration is needed

2026-27

14 days

Time to register after you start employing

1.85%

ReturnToWorkSA average premium rate

2026-27

Step 6: Hiring your first employee

Because South Australia referred its industrial relations powers to the Commonwealth, private-sector employers follow modern awards and the National Employment Standards administered by the Fair Work Ombudsman. From 1 July 2026 the national minimum wage is A$26.44 an hour and the super guarantee is 12%, paid with each pay cycle under Payday Super. SafeWork SA enforces work health and safety, and long service leave is governed by South Australian law.

Before the first shift, register for PAYG withholding, set up Single Touch Payroll, check the correct award and classification, give the Fair Work Information Statement, and register with ReturnToWorkSA if your wages will pass the exemption. The free Fair Work Employer Advisory Service gives small businesses written advice on employment questions.

Your first SA employee — checklist in order

1. 1

   Check the award

   Use Fair Work's tools to find the right modern award and pay rate.

2. 2

   Register for PAYG withholding

   Do it with the ATO before the first pay run.

3. 3

   Register with ReturnToWorkSA

   Within 14 days of employing, unless 2026-27 wages stay under A$16,806.

   ReturnToWorkSA — Register for cover
4. 4

   Set up STP and Payday Super

   Report each pay to the ATO and pay super with each pay cycle.

5. 5

   Give the required statements

   Fair Work Information Statement; Casual Employment Information Statement for casuals.

Step 7: Payroll tax in South Australia

RevenueSA collects payroll tax. You must register once your Australian wages, or your group's, exceed A$1.5 million a year — about A$125,000 a month. Taxable wages include salary, super, bonuses, fringe benefits, directors' fees and some contractor payments. Related businesses are grouped and share one threshold.

SA's structure is different from most states. The rate is set by your total Australian wages before any deduction: nil up to A$1.5 million, a variable rate rising from 0% to 4.95% between A$1.5 million and A$1.7 million, and the full 4.95% above that. That rate is then applied to your wages after a maximum deduction of A$600,000 a year. RevenueSA Online calculates the exact rate for you. The 2026-27 SA Budget made no change to these settings. Our payroll tax by state guide covers grouping and contractors.

Worked examples in A$

A Norwood café run through a company

Jess and Marco set up a company to open a café on The Parade, Norwood. Their one-off government costs are A$636 for the company and free for the ABN; they trade under the company's name, so they skip the business name, and pay the ASIC annual review fee of A$342 a year. Before signing the lease they confirm through the council that the tenancy can be used as a café with seating, lodge the fit-out for development approval, submit a Food Business Notification and have Jess complete food safety supervisor training.

They expect four staff and about A$280,000 of wages including super in the first year — well above A$16,806 — so they register with ReturnToWorkSA before the first shift rather than waiting for the 14 days deadline. At the 1.85% average rate, that's about A$5,180 a year; their real premium depends on the café industry rate. Payroll tax doesn't apply.

An Adelaide business over the payroll tax threshold

An Adelaide software firm pays A$1.8 million of Australian taxable wages a year, all in SA. Because its wages exceed A$1.7 million, the full 4.95% rate applies to wages after the A$600,000 deduction: (A$1,800,000 − A$600,000) × 4.95% = A$59,400 a year. A firm with A$1.45 million of wages pays nothing and doesn't need to register.

The two SA examples side by side

Item	Norwood café company	Adelaide software firm
ABN	free	free
Company	A$636 + A$342 a year	Already incorporated
Council	Development approval + Food Business Notification	None for an approved office
ReturnToWorkSA	Register — wages above A$16,806	Register
Payroll tax	No — under A$1.5 million	About A$59,400 a year

ABN

Norwood café company

free

Adelaide software firm

free

Company

Norwood café company

A$636 + A$342 a year

Adelaide software firm

Already incorporated

Council

Norwood café company

Development approval + Food Business Notification

Adelaide software firm

None for an approved office

ReturnToWorkSA

Norwood café company

Register — wages above A$16,806

Adelaide software firm

Register

Payroll tax

Norwood café company

No — under A$1.5 million

Adelaide software firm

About A$59,400 a year

Grants and free support in South Australia

There's no general SA grant for starting a business. The SA Government's support is mainly advice and capability programs. Call the Business Information Line on 8429 3801 to be referred to the right advisory service, or work with your region's Small Business Support Officer, who gives one-on-one help to start, run or grow a business. The state also runs a Small Business Fundamentals Program, Small Business Week events, a mental health and wellbeing program for owners, and the Women in Business Foundations Program, which costs A$220 (incl. GST).

Other free help listed by the SA Government includes the Fair Work Commission's Workplace Advice Service, the Fair Work Employer Advisory Service, a University of South Australia tax clinic for small business taxpayers who can't afford an agent, and Beyond Blue's NewAccess coaching for small business owners. Many councils, such as the City of Marion, run their own workshops and mentoring. For federal grants, see our small business grants guide.

Common mistakes when starting in South Australia

Assuming small building jobs don't need a licence. In SA, contracting for building work needs a CBS licence at any value. Fix: check your licence conditions cover the work before you quote.

Waiting for an injury to register with ReturnToWorkSA. If wages are above the exemption, you must register within 14 days. Fix: register as soon as you know your wages will exceed A$16,806.

Opening before the Food Business Notification. It's an offence to operate without notifying. Fix: lodge the FBN at least two weeks before opening.

Ignoring group wages for payroll tax. Related companies share one threshold. Fix: add up Australian wages across the group each month.

Signing a lease before planning advice. A change of use may need approval. Fix: check zoning and approvals through PlanSA and your council first.

Official links

• SA Government — Business support servicesBusiness Information Line, support officers, programs
• Business Registration ServiceABN, business name and tax registrations
• ReturnToWorkSA — Register for coverWho must register and the 2026-27 exemption
• RevenueSA — Payroll tax rates and thresholdsThreshold, sliding rate and deduction
• ABLIS — Building Work Contractor's Licence (SA)Who needs a licence
• FSANZ — Food safety supervisorWho needs one

What to do next

Work out your set-up budget with our startup cost calculator, apply for your ABN, and call the Business Information Line to confirm your licences. If you're comparing states, see our guides to starting a business in Western Australia, Victoria and Tasmania.

This is general information, not legal or tax advice — confirm on the official source or with a professional.

Frequently asked questions

How do I register a business name in South Australia?

Business names are registered nationally with ASIC, not with South Australia. Apply through the Business Registration Service once you have an ABN: a name costs A$47 for one year or A$108 for three. South Australia's own business names register closed in 2012, so your registered name covers every state and territory.

When do I need to register with ReturnToWorkSA?

If you employ workers who usually work in or are based in South Australia, you must register for work injury insurance within 14 days of employing. You don't need to register if you'll pay less than A$16,806 in total wages for 2026-27 — but if a worker is injured, you must then register and pay the minimum premium. You can register before you hire.

What is the payroll tax threshold in South Australia?

You must register with RevenueSA once your Australian wages, or your group's, exceed A$1.5 million a year — about A$125,000 a month. Between A$1.5 million and A$1.7 million the rate rises from 0% to 4.95%; above that, the full 4.95% applies to wages less the A$600,000 deduction. The 2026-27 SA Budget made no change.

Do I need a builder's licence in South Australia?

Yes, if you carry out or arrange building work for others. Consumer and Business Services (CBS) issues building work contractor licences, and all building work must be supervised by a registered building work supervisor. An individual who does the work themselves needs both the licence and supervisor registration. Licences carry conditions on the type, and sometimes the value, of work.

How do I start a food business in South Australia?

Notify your local council before you open by lodging a Food Business Notification under the Food Act 2001. Many councils process it free of charge and issue an FBN number that's recognised across the state. Tell the council within 14 days of a change in ownership or contact details. Cafés and caterers handling high-risk unpackaged food also need a food safety supervisor.

Where can I get free help starting a business in South Australia?

Call the SA Government's Business Information Line on 8429 3801 to be referred to advisory services, or work with your region's Small Business Support Officer. The Small Business Commission SA (1800 072 722) offers low-cost mediation for disputes, and the Women in Business Foundations Program costs A$220 (incl. GST).

Sources & verification

Figures on this page were checked against the sources below when it was last reviewed on 12 October 2026. Each rate and limit is stored once with its own official source and review date, and official update channels are monitored daily so changes are picked up. How we verify

1. 1.Business support services — Government of South Australia (business.sa.gov.au) · accessed 12 October 2026
2. 2.Register for cover — ReturnToWorkSA · accessed 12 October 2026
3. 3.ReturnToWorkSA average premium rate for 2026-27 maintained — ReturnToWorkSA · accessed 12 October 2026
4. 4.Payroll tax rates and thresholds — RevenueSA · accessed 12 October 2026
5. 5.2026-27 South Australian Budget — PwC Australia · accessed 12 October 2026
6. 6.Building Work Contractor's Licence – South Australia — ABLIS (Australian Government) · accessed 12 October 2026
7. 7.Food Safety: Food Business Notification — City of Salisbury · accessed 12 October 2026
8. 8.Food safety supervisor — Food Standards Australia New Zealand · accessed 12 October 2026
9. 9.Women in Business Foundations Program (SA) — business.gov.au · accessed 12 October 2026