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Non-Compete Clause Australia: A Legal Guide

Non-compete clauses (also known as restraint of trade clauses) are a common feature of employment contracts in Australia. They are designed to protect businesses from unfair competition by restricting what former employees can do after leaving a company.

But are non-compete clauses enforceable in Australia? The answer is: only if they are reasonable and necessary to protect legitimate business interests.

This guide, written by our experienced employment contract lawyers, explains how non-compete clauses work, when they can be enforced, and best practices for employers when drafting them. 

Key Takeaways

  • Non-compete clauses protect employers by restricting ex-employees from working with competitors or starting a rival business.

  • Australian law requires clauses to be reasonable and necessary to protect legitimate business interests.

  • Enforceability depends on duration, geographic scope, and restricted activities.

  • Governed by Common Law, influenced by the Competition and Consumer Act 2010 (Cth) and Fair Work Act 2009 (Cth).

  • Best drafted with clear definitions, narrow timeframes, and cascading clauses to improve enforceability.

  • Courts will strike out overly broad restrictions but uphold clauses that reasonably protect an employer’s business.

Gabby McDonald is the Client Liaison Manager at Prosper Law Pty Ltd

What is a Non-Compete Clause?

A non-compete clause, also known as a restraint of trade clause, is a contractual term that restricts an employee from engaging in competing activities after their employment ends. 

Employers use them to:

  • Prevent employees from working for competitors or starting a competing business after employment.
  • Protect confidential information, trade secrets, and customer relationships.
  • Safeguard the employer’s market position and workforce stability.

Legal Tip: Employment contract clauses must be tailored to roles, define legitimate interests clearly. Ensure restraints are proportionate to the level of risk and business impact.

Are Non-Compete Clauses Enforceable in Australia?

Under Australian law, non-compete clauses are assessed based on the common law doctrine of restraint of trade.

They are prima facie unenforceable unless the employer can prove that the clause is:

  • Reasonable: The clause must not impose excessive restrictions on the employee’s ability to earn an income; and
  • Necessary: It must protect legitimate business interests, such as confidential information or customer relationships.

Factors Courts Consider

Courts assess the following factors when determining enforceability:

Factor

Explanation

Duration

The length of time the restriction applies.

Geographical Scope

The physical area covered by the clause.

Scope of Activities

The specific activities the employee is prohibited from performing.

Legitimate Interests

Whether the employer’s interests justify the restriction (e.g., trade secrets).

Key Laws Governing Non-Compete Clauses

  • Common Law Principles: Courts assess reasonableness and necessity on a case-by-case basis.
  • Competition and Consumer Act 2010 (Cth): Non-compete clauses must not unduly restrict competition or harm public interest.
  • Fair Work Act 2009 (Cth): While not directly addressing non-compete clauses, it influences general employment conditions and rights.
Farrah Motley is an Australian Legal Practitioner and the Director of Prosper Law

Drafting an Enforceable Non-Compete Clause

To increase the likelihood of enforceability, employers should carefully draft non-compete clauses by considering the following:

Factor

Best Practices

Reasonableness

Ensure the clause does not overly restrict the employee’s ability to earn an income.

Duration

Limit the restraint period to what is necessary (e.g., 1–12 months).

Geographical Scope

Use narrow and specific geographic limits relevant to the business’s operations.

Restricted Activities

Clearly define prohibited activities (e.g., working for competitors, poaching clients).

Practical Tips for Employers

  • Define Legitimate Interests: Clearly identify what you aim to protect (e.g. trade secrets, customer relationships).
  • Use Cascading Clauses: Include step-down provisions for duration, geography, and activities to improve enforceability.
  • Tailor Clauses to Roles: Apply stricter restraints to senior employees or those with access to sensitive information.
  • Ensure the Clause is well written: We recommend engaging a employment lawyers to draft a non compete clause.

Case Studies: Australian Court Approach

Australian courts have demonstrated a cautious approach to enforcing non-compete clauses. Key cases include:

Barker v The Commonwealth Bank of Australia [2012] FCA 942

The court emphasised the importance of balancing employer interests with employee rights.

Just Group Ltd v Amerind Pty Ltd [2018] VSC 143

A clause was struck down due to excessive duration and geographical scope.

Apostolakis v ITG Pty Ltd [2019] NSWSC 1224

The court severed unreasonable parts of a clause while upholding the rest, showcasing flexibility.

While non-compete clauses remain enforceable today, they may not be here to stay – read our article on Australia to Ban Most Non-Competes by 2027 to learn more.

Stephen Motley Engineering lawyer

Frequently Asked Questions

What makes a non-compete clause unenforceable?

Unreasonable duration, broad geographical scope, or restrictions not tied to legitimate business interests. 

What is a reasonable duration for a non-compete clause?

Typically 1–12 months, depending on the industry and role.

Can a non-compete clause apply nationwide?

Only if necessary to protect legitimate interests, such as highly confidential information.

What happens if an employee breaches a non-compete clause?

Employers may seek an injunction or damages, provided they can prove harm caused by the breach.

Can an employer enforce a non-compete clause after redundancy?

Yes, an employer can enforce a non-compete clause after redundancy, but its enforceability depends on the specific circumstances and the reasonableness of the clause.

Australian courts assess whether the clause is necessary to protect the employer’s legitimate business interests, such as confidential information, trade secrets, or customer relationships.

What industries most commonly use non-compete clauses in Australia?

Non-compete clauses are most commonly used in industries where protecting sensitive information, client relationships, and intellectual property is critical. These industries include:

Industry

Reason for Non-Compete Clauses

Technology and ITTo protect proprietary software, algorithms, and trade secrets.
Professional ServicesTo safeguard client relationships and confidential business strategies (e.g., law, accounting).
Healthcare and PharmaceuticalsTo prevent employees from leveraging patient lists, research data, or proprietary drug formulas.
Sales and MarketingTo protect customer databases, pricing strategies, and market-sensitive information.
Finance and BankingTo secure client portfolios, investment strategies, and confidential financial data.
Manufacturing and EngineeringTo protect trade secrets, designs, and production processes.
Media and EntertainmentTo prevent talent or executives from joining competitors or starting rival

 

About the Author

Farrah Motley
Director of Prosper Law. Farrah founded Prosper online law firm in 2021. She wanted to create a better way of doing legal work and a better experience for customers of legal services.

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Farrah Motley is an Australian Legal Practitioner and the Director of Prosper Law
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