Contractor vs Employee Tax in Australia: What's the Difference?

Both contractors and employees pay income tax at the same marginal rates in Australia — the tax brackets are identical. The key differences lie in how super is handled, whether GST applies, what happens to leave entitlements, and who bears the risk of sham contracting.

What is the difference between a contractor and an employee?

In Australia, an employee receives a salary or wages under an employment contract. The employer withholds PAYG (Pay As You Go) tax via TFN and pays compulsory super (12.0%) on top of the salary. The employee receives paid annual leave, sick leave, and public holiday pay under the Fair Work Act.

A contractor (also called an independent contractor or sole trader) operates under an ABN (Australian Business Number), invoices for their services, and is responsible for managing their own tax, super, and insurance. Contractors are not employees and have no right to employment entitlements by default.

The distinction matters enormously for tax obligations, super, and legal risk. Many immigrants arrive having worked as employees in their home country and assume contractor arrangements work the same way — they do not.

How does contractor vs employee tax work in Australia?

Income tax: Identical marginal rates apply regardless of whether you are a contractor or employee. Both pay 16%, 30%, 37%, or 45% on the relevant income bands. The difference is in the mechanism — employees have tax withheld by the employer, while contractors pay tax via quarterly PAYG instalments or in a lump sum at tax return time.

Superannuation:

Employees: employer must pay 12.0% super on top of base salary
Contractors: no automatic super obligation, BUT employers must pay super for contractors if the contract is wholly or principally for the contractor's labour and the contractor works full-time

GST: If your annual turnover exceeds $75,000, you must register for GST, charge 10% GST on your invoices, and remit it to the ATO quarterly. Most employees never deal with GST. Contractors below the $75,000 threshold can choose not to register.

Gross rate premium: Because contractors receive no paid leave, no sick leave, and no employer super, a fair contractor rate is typically 20–30% higher than an equivalent permanent salary. A $100,000 permanent role might correspond to a $125,000–$130,000 contractor rate.

Step-by-step: setting up as a contractor in Australia

Apply for an ABN at abr.gov.au. It is free and takes minutes online.
Determine whether you need to register for GST. If your projected annual income from contracting exceeds $75,000, register for GST immediately. If below, you can choose not to, but monitor your turnover.
Set up a separate bank account for your contracting income. This makes BAS (Business Activity Statement) preparation and tax much simpler.
Understand your super obligations. You are responsible for your own retirement savings. Consider making voluntary super contributions — these can also be tax-deductible (up to the concessional contributions cap of $30,000).
Set aside tax throughout the year. A common rule: set aside 30% of gross income for tax and GST as you receive each payment. This prevents a large year-end tax debt.
Lodge Business Activity Statements (BAS) if registered for GST — quarterly or monthly depending on your arrangement with the ATO.

Common mistakes to avoid

Assuming the client will handle your tax. Unlike employees, contractors must manage their own tax obligations. No one withholds on your behalf.
Sham contracting. If a business treats you as a contractor to avoid entitlements but you work exclusively for them, under their direction, using their tools — this is sham contracting. The ATO and Fair Work Ombudsman can reclassify the arrangement, with penalties for the business and back-pay obligations.
Not registering for GST when required. If you exceed $75,000 turnover without registering, you face back-taxes on the GST you should have collected.
Underpricing your rate. Many immigrants accept employee-level rates as contractors, effectively giving themselves a 20–30% pay cut by forgoing entitlements.

Frequently asked questions

Do contractors pay a different income tax rate than employees? No. The income tax brackets are identical. The difference is in timing (quarterly instalments vs fortnightly withholding) and in the obligation to manage your own payments. Both ultimately pay the same marginal rates on the same income levels.

Can my employer force me to be a contractor? No. An employer cannot unilaterally classify a working arrangement as contracting to avoid paying entitlements. The ATO and Fair Work use an objective multi-factor test to determine the true nature of the relationship. If it walks like employment and quacks like employment, it is employment.

Is it worth setting up a company structure as a contractor? For high-earning contractors, operating through a proprietary company (Pty Ltd) can offer tax planning benefits — particularly around income splitting and access to the 25% small business company tax rate. However, compliance costs are significantly higher (company tax return, ASIC fees, payroll tax considerations). Most sole-contractor immigrants start as sole traders and consider the company structure after two to three years.