Valid Reasons For Employee Dismissal In Australia

Dismissing an employee is one of the toughest calls you’ll make as a business owner. It’s also an area where getting the law wrong can be costly.

The good news is that Australian law is clear about what counts as a valid reason for dismissal and what a fair process looks like. If you understand both, you can make confident, lawful decisions that protect your business and your team.

Below, we explain the main valid reasons for dismissal in Australia, the steps to follow to reduce legal risk, and the red flags to avoid. We’ll also highlight the documents that make this process smoother in practice.

What Counts As A Valid Reason To Dismiss An Employee?

Under the Fair Work system, a dismissal generally needs a sound, defensible reason related to the employee’s conduct, capacity or your business’s operational requirements. In practice, most lawful terminations fall into one of these categories:

• Conduct: misconduct or serious misconduct (e.g. theft, fraud, violence, serious safety breaches, or gross insubordination).
• Capacity: poor performance or inability to fulfill the role (including loss of a necessary qualification or license, or medical incapacity where the employee cannot perform the inherent requirements of the job).
• Operational reasons: a genuine redundancy where the job is no longer required due to business changes and redeployment is not reasonable.

Having a valid reason is only half the story. You also need to follow a fair process. This usually means telling the employee the reason, giving them a chance to respond, considering their response, and taking care with notice, final pay and entitlements.

Misconduct And Serious Misconduct: When Is Summary Dismissal Okay?

Misconduct covers things like breaching workplace policies, repeated lateness after warnings, or inappropriate behaviour that undermines trust.

Serious misconduct is different. It’s behaviour so serious that it justifies dismissal without notice (summary dismissal). Typical examples include theft, assault, serious safety breaches, major conflicts of interest, fraud, or being intoxicated at work in a way that creates serious risk.

Even for serious misconduct, a brief but fair process matters. This usually includes promptly investigating, putting the allegations to the employee, letting them respond (with a support person if they ask), and making a considered decision. If you’re uncertain whether the conduct reaches the “serious” threshold, err on the side of issuing a warning or paying notice rather than risking an unfair dismissal claim.

Performance Or Capacity: Managing Underperformance Lawfully

When performance is the issue, dismissal is typically lawful only after you’ve set clear expectations, identified the gaps, and given the employee a reasonable chance to improve (often through a performance improvement plan).

Capacity also covers situations where an employee can’t perform the inherent requirements of the role for medical reasons. If that applies, it’s important to get good information about those inherent requirements and the employee’s limitations. In some cases, dismissing on medical grounds can be lawful, especially after exploring suitable adjustments and reasonable alternatives. If you reach that point, review your obligations carefully around termination on medical grounds before you act.

Key practical steps for performance-based terminations include:

• Setting objective KPIs and timelines for improvement.
• Providing support (training, feedback checkpoints).
• Documenting discussions and warnings along the way.
• Checking your process against any applicable award, enterprise agreement or contract terms.

Genuine Redundancy: Operational Reasons For Ending Employment

Redundancy is valid where your business no longer needs someone’s job done by anyone due to changes like restructuring, new technology, or cost pressures. To be a genuine redundancy, you also need to comply with consultation obligations in any applicable modern award or enterprise agreement and consider reasonable redeployment options within your business (or associated entities).

If it’s a genuine redundancy, unfair dismissal laws generally won’t apply. However, redundancy pay, notice and other entitlements may still be payable. Be careful to distinguish redundancy from performance issues; if the role still exists and you just prefer someone else in the seat, it won’t be a genuine redundancy.

Process Essentials: Notice, Probation, Fixed-Terms And Documentation

Even with a valid reason, the process you follow is often what determines whether a dismissal is legally fair. Use the checklist below to stay on track.

Notice Periods And Final Pay

Most dismissals require you to provide written notice (or payment in lieu). The minimum notice depends on the employee’s length of service and sometimes their contract or an award. If you’re not sure what applies in your case, start by calculating notice periods under the Fair Work Act and any relevant industrial instrument.

Many employers prefer to pay out notice to end employment sooner. If you go that route, check your obligations around payment in lieu of notice and superannuation to avoid underpayments.

Probation

Probation doesn’t give you a free pass to dismiss without care, but it does change how the Fair Work Act applies (for example, minimum employment periods affect unfair dismissal eligibility). You should still communicate performance or fit issues and follow a brief, fair process. For common pitfalls and a practical roadmap, see terminating employment during probation.

Fixed-Term And Maximum-Term Contracts

Many businesses use fixed-term or maximum-term contracts for project work or seasonal roles. Ending these arrangements can be tricky, especially if the term ends but the employee keeps working, or if you want to end early. Review your contract and any award obligations carefully. If you’re weighing your options, our guide to terminating a fixed-term contract sets out the key steps and risks.

Investigations, Show Cause And Natural Justice

For misconduct or serious misconduct, a basic investigation is essential. Gather facts, interview witnesses where relevant, and consider the employee’s response before you decide. A written “show cause” letter that sets out specific allegations and invites a response is standard practice. You can follow the structure in show cause letters to keep things consistent and fair.

In some cases, you may separate an employee from the workplace while you investigate (for example, where there are safety or confidentiality risks). If you do, keep it short and reasonable, and consider whether it should be paid or unpaid under your policies and contract.

Payments On Termination

Final pay usually includes outstanding wages, accrued but untaken annual leave, and any notice or redundancy pay that applies. Long service leave and other entitlements can depend on your state or territory rules and the employee’s length of service. Paying everything on time helps avoid disputes and penalties.

Unlawful Reasons To Dismiss (Red Flags)

Some reasons will never be “valid”, even if you follow a textbook process. Avoid dismissing someone for:

• Discriminatory reasons (e.g. race, sex, age, disability, pregnancy, religion).
• Exercising a workplace right (e.g. making a complaint, requesting flexible work, joining a union).
• Temporary absence due to illness or injury (within the legal protections).
• Taking parental leave or other protected leave.

Dismissing for these reasons exposes you to general protections claims, which can be serious and don’t require the employee to meet unfair dismissal eligibility thresholds.

Key Documents To Have Ready

Well-drafted documents make dismissal decisions clearer and reduce your risk. Consider putting these in place early:

• Employment Contract: sets expectations around duties, performance, notice, termination options, garden leave and post-employment restraints.
• Workplace Policies: include a code of conduct, performance and disciplinary procedures, complaints handling and safety rules.
• Warnings And Performance Plans: templates keep the process consistent and well-documented.
• Show Cause And Investigation Templates: to ensure procedural fairness and clear communication.
• Termination And Redundancy Letters: to confirm decisions, entitlements and key dates.
• Deed Of Release (when appropriate): to finalise settlement terms and reduce dispute risk.

If you need a complete toolkit, our Employee Termination Documents Suite can be tailored to your business and industry.

Key Takeaways

• A valid reason for dismissal usually relates to conduct, capacity (including sustained underperformance) or genuine redundancy arising from business needs.
• “Serious misconduct” can justify summary dismissal, but you should still investigate, put allegations to the employee, and consider their response.
• For performance-based terminations, set clear expectations, provide support and time to improve, and document the process before making a decision.
• Redundancy must be genuine: consult as required, consider redeployment, and pay the correct redundancy and notice entitlements where applicable.
• Get the mechanics right: check notice periods, handle payment in lieu correctly, and use a fair process (investigation, show cause, decision).
• Be alert to unlawful reasons (discrimination, adverse action, protected leave). These are high risk even if your process looks neat on paper.
• Having the right contracts, policies and templates-such as a robust Employment Contract, clear policies and a concise show cause template-will streamline decisions and reduce disputes.

If you’d like a consultation on managing dismissals or setting up your termination documents the right way, you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no-obligations chat.