Unfair Dismissal: Employer Risks and Prevention

TL;DR: Unfair dismissal claims are among the most common and costly employment law risks employers face. The key defences are: a potentially fair reason for dismissal, a fair procedure, and a decision that falls within the range of reasonable responses. All three require documentation.

What You Need to Know

Dismissing an employee is one of the highest-risk employment decisions a business can make. Even where an employer has good grounds for dismissal — persistent poor performance, serious misconduct, genuine redundancy — a procedurally flawed process can still result in an unfair dismissal finding and a compensation award.

In the UK, unfair dismissal claims are heard by Employment Tribunals. In Australia, the Fair Work Commission handles "unfair dismissal" and "general protections" applications. In France, the Conseil de Prud'hommes adjudicates wrongful termination disputes. Across all jurisdictions, employees who meet the qualifying period of service can challenge their dismissal and, if successful, receive compensation or reinstatement.

Prevention is far less costly than defence. This guide covers the key risk areas, procedural requirements, and documentation employers need to protect themselves.

How It Works: A Practical Overview

Qualifying Period for Unfair Dismissal

Most jurisdictions require a minimum period of employment before an employee can bring an unfair dismissal claim:

• UK: Two years of continuous employment (as of 2024)
• Australia: Six months (12 months for small businesses with fewer than 15 employees)
• New Zealand: No qualifying period under the Employment Relations Act
• France: No qualifying period for most dismissal protections
• Sweden: Employees are protected immediately under LAS (Lagen om anställningsskydd)

Employees dismissed during the qualifying period may still bring claims for automatically unfair dismissal (e.g., whistleblowing, pregnancy, union membership) or discrimination — there is no qualifying period for these categories.

Potentially Fair Reasons for Dismissal

In the UK, there are five potentially fair reasons for dismissal:

1. Conduct — misconduct or gross misconduct
2. Capability — poor performance or ill health
3. Redundancy — genuine reduction in workforce need
4. Statutory bar — the employee can no longer legally work (e.g., lost right to work)
5. Some other substantial reason (SOSR) — e.g., breakdown of trust and confidence

Having a potentially fair reason is necessary but not sufficient. The dismissal must also be procedurally fair and fall within the "range of reasonable responses" — would a reasonable employer, in similar circumstances, have dismissed?

The ACAS Code of Practice (UK) and Equivalent Frameworks

In the UK, the ACAS Code of Practice on Disciplinary and Grievance Procedures is the benchmark for procedural fairness. It requires:

1. Investigation before taking disciplinary action
2. Written notification of the allegations
3. A disciplinary hearing with the right to be accompanied
4. A decision, communicated in writing with reasons
5. A right of appeal

Employment tribunals can increase or decrease any compensation award by up to 25% depending on whether either party failed to follow the Code. The equivalent frameworks in Australia (under the Fair Work Act), France, and other jurisdictions set similar procedural expectations.

Gross Misconduct

Gross misconduct — such as theft, fraud, violence, or serious breach of health and safety — can justify summary dismissal (dismissal without notice). However, even in gross misconduct cases, a fair investigation and disciplinary hearing are required before dismissal. Skipping the process because the conduct seems obviously serious is a very common — and very costly — mistake.

Automatically Unfair Dismissal

Certain dismissal reasons are automatically unfair regardless of the employer's procedure:

• Pregnancy or maternity leave
• Making a protected disclosure (whistleblowing)
• Trade union membership or activities
• Part-time or fixed-term status
• Exercising statutory rights (e.g., requesting flexible working)
• Health and safety concerns

In automatically unfair dismissal cases, there is no qualifying period and no cap on compensation in many jurisdictions.

Country-by-Country Comparison

US note: The US "at-will" employment doctrine means most employees can be dismissed without cause and without notice (and can leave without notice). However, this is heavily qualified by anti-discrimination laws, state protections, and contractual rights. Many US employees have more protection than the at-will doctrine implies.

Common Mistakes to Avoid

1. Dismissing without investigation. Even where misconduct appears obvious, you must investigate before deciding to dismiss. An investigation involves gathering evidence, interviewing witnesses, and giving the employee an opportunity to respond. Skipping investigation is the most commonly cited procedural failing in employment tribunals.
2. Combining the investigator and disciplinary panel roles. The person who conducts the investigation should not be the same person who hears the disciplinary case and makes the dismissal decision. Keeping these roles separate demonstrates procedural fairness.
3. Not telling the employee what they are accused of. The written notification of the disciplinary hearing must set out the alleged misconduct clearly enough for the employee to respond. Vague or changing allegations undermine the entire process.
4. Refusing the right to be accompanied. In the UK, employees have a statutory right to be accompanied at formal disciplinary hearings by a trade union representative or a work colleague. Refusing this right can itself make the dismissal unfair.
5. Ignoring mitigation. Before deciding to dismiss, you must genuinely consider any mitigation the employee offers — personal circumstances, a clean disciplinary record, provocation, etc. Whether you accept the mitigation is your decision, but you must consider it.

Next Steps: Get Started Today

Prepare your disciplinary documentation and protect your business:

• Employment Checker — check unfair dismissal rules and qualifying periods by jurisdiction
• Filing Deadlines — track timelines for disciplinary processes and appeal periods

MmowW Scrib🐮 is a document preparation service, not a law firm. We do not provide legal advice. For advice specific to your situation, consult a qualified employment solicitor or attorney.

Frequently Asked Questions

Q: Can I dismiss someone on their first disciplinary offence?

A: Only where the conduct constitutes gross misconduct. For lesser misconduct, a series of warnings is expected — typically a verbal warning, then written warning, then final written warning, then dismissal. Jumping straight to dismissal for minor misconduct without this progression is likely to be procedurally unfair.

Q: If an employee resigns during a disciplinary process, can they still claim?

A: Yes. If an employee resigns in response to a breach of contract by the employer — such as making their working life intolerable — they may claim "constructive dismissal," which is treated as if the employer dismissed them. This is a high bar for employees to meet, but managing a disciplinary process heavy-handedly or victimising an employee during investigation can create the conditions for a constructive dismissal claim.

Q: How long should I keep disciplinary records?

A: Written warnings should be kept on an employee's file for the duration specified in your disciplinary policy (typically 12 months for a written warning, 24 months for a final written warning). After this period, they are "spent" and should not be used in future disciplinary proceedings. However, records of investigations and hearings should be retained for longer — at least until any statutory limitation period for claims has passed.

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