Misclassifying workers as contractors instead of employees is a common and costly ATO audit trigger. Here is how to get the employee vs contractor distinction right.
One of the most frequently misunderstood areas of Australian tax law is the distinction between employees and independent contractors. Many businesses, in good faith, engage workers as contractors when those workers are, in the eyes of the law, actually employees. This misclassification can result in substantial ATO liabilities, including unpaid PAYG withholding tax, superannuation guarantee charges, and penalties.
Getting this distinction right is not simply a matter of what the contract says, it requires applying a multi-factor legal test to the actual working arrangement.
When a worker is an employee, the employer has obligations to withhold PAYG tax from their payments and remit it to the ATO, pay superannuation guarantee contributions, provide payslips and comply with relevant workplace laws, and report the employee’s income through Single Touch Payroll.
When a worker is a genuine independent contractor, most of these obligations do not apply, and the contractor is generally responsible for their own tax. There is, however, an important exception: under the superannuation guarantee legislation, a contractor engaged under a contract that is wholly or principally for their labour is treated as an employee for superannuation purposes, so superannuation can be payable even where the worker is a genuine contractor.
The financial stakes are significant. If the ATO determines that workers classified as contractors were actually employees, the business becomes liable for all the PAYG withholding that should have been deducted, the superannuation guarantee contributions that should have been paid, and potentially penalties and General Interest Charges on both amounts, which can stretch back over multiple years.
Australian courts and the ATO weigh a range of factors to determine whether a working arrangement is one of employment or independent contracting. The label the parties give the relationship is not determinative. Following the High Court’s 2022 decisions in CFMMEU v Personnel Contracting and ZG Operations v Jamsek, and the ATO’s ruling TR 2023/4, where the parties have a comprehensive written contract the characterisation for tax and superannuation purposes turns on the legal rights and obligations in that contract, not on how the relationship later plays out, unless the contract is a sham, has been varied, or is otherwise ineffective.
Relevant factors include: the degree of control the engaging party has over how the work is performed; whether the worker can subcontract or delegate the work; whether the worker provides their own tools and equipment; whether the worker bears financial risk for the result; and whether the worker operates their own independent business.
No single factor is decisive, the determination requires weighing all relevant factors in the context of the specific arrangement. Workplace law, however, now takes a different path: since 26 August 2024, the Fair Work Act determines employment by reference to the ‘real substance, practical reality and true nature’ of the relationship, a whole-of-relationship test. A worker can therefore be a contractor for tax purposes yet an employee for workplace law purposes, and each regime must be checked separately.
The ATO’s contractor compliance focus has historically been concentrated in the construction and building trades, the personal services sector (including massage, beauty, and cleaning), the transport industry, and the digital and creative services sector.
In one case handled by our office, a massage business in Melbourne that had engaged its workers as contractors was audited by the ATO, which argued that the arrangement was one of employment. The ATO assessed the business for PAYG withholding and superannuation guarantee charges of over $500,000.
Our office successfully defended the taxpayer by demonstrating, through detailed analysis of the actual working arrangements, that the workers operated as independent contractors. The matter was resolved in the taxpayer’s favour, with the ATO acknowledging that the majority of the workers were indeed genuine contractors.
Sham contracting occurs where a business deliberately misrepresents an employment relationship as a contracting arrangement to avoid employer obligations. This is distinct from a genuine but incorrect classification, sham contracting involves intentional misrepresentation.
The consequences of sham contracting are more severe than simple misclassification. In addition to the tax liabilities described above, sham contracting attracts civil penalties under the Fair Work Act that were increased substantially in 2024, up to $99,000 per contravention for small businesses ($19,800 for individuals), and for larger businesses the greater of $495,000 or three times the benefit obtained, as well as, in serious cases, personal liability for the individuals responsible. The employer’s defence has also narrowed: since 27 February 2024 an employer must show it reasonably believed the arrangement was one of contracting. The ATO and the Fair Work Ombudsman announced a coordinated sham contracting crackdown in March 2026.
Even where there is no intention to deceive, if the arrangement has the hallmarks of employment rather than genuine contracting, the ATO may still impose the full range of employer obligations on the engaging business.
Businesses that engage contractors should take the following steps to ensure their arrangements are correctly structured: conduct a genuine legal analysis of each working arrangement against the multi-factor test; ensure that contracts accurately reflect the actual working arrangement; review arrangements regularly as the working relationship evolves; and seek professional advice if there is any uncertainty about the correct classification.
If you are concerned that contractor arrangements in your business may not withstand ATO scrutiny, it is better to identify and address the issue proactively than to wait for an audit. Contact Australian Tax Experts for a confidential review of your arrangements.
Related guides: ATO Super Guarantee Audits: What Employers Must Know; Contractor payments report for couriers and cleaners.
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