Constructive dismissal occurs when an employee resigns because their employer’s conduct has fundamentally breached their contract of employment. Although the employee has chosen to resign, the law treats the resignation as a dismissal by the employer because the situation effectively left them with no real choice. This guide explains what constructive dismissal means, how it arises under UK employment law, and what steps employees can take if they believe they have been forced to resign.

What is constructive dismissal?

Definition under UK employment law

Constructive dismissal is a form of unfair dismissal that arises when an employee resigns in response to a serious breach of their employment contract by their employer. The term is defined under section 95(1)(c) of the Employment Rights Act 1996, which states that an employee is dismissed if they terminate the contract (with or without notice) in circumstances where they are entitled to do so by reason of the employer’s conduct.

In essence, the employer’s actions must be serious enough to destroy the trust and confidence that underpins the employment relationship. The breach can arise from a single incident or a pattern of behaviour over time.

When resignation equals dismissal

In most situations, a resignation ends employment by the employee’s own choice. However, where the resignation is prompted by the employer’s fundamental breach of contract, the law considers that the employer has effectively forced the employee out. In that sense, the resignation is treated as a “dismissal” for the purposes of employment law.

The legal test for constructive dismissal

Serious breach of contract or implied term

To succeed in a constructive dismissal claim, an employee must demonstrate that the employer committed a fundamental breach of contract. This may involve breaching an express term (such as pay or working hours) or an implied term, particularly the implied duty of mutual trust and confidence. Examples include deliberately withholding pay, unreasonably changing terms of employment, or creating intolerable working conditions.

Causation: resigning in response to the breach

The employee must also show that they resigned because of the employer’s breach. If the resignation was due to other reasons, such as securing a new job, the claim is unlikely to succeed. The breach must have been the principal reason for leaving.

Promptness: the timing of your resignation

Timing is crucial. If an employee continues to work for a significant period after the breach, they may be seen as having affirmed the contract, meaning they accepted the employer’s conduct and lost the right to rely on it as a ground for constructive dismissal. Generally, resignation should follow relatively soon after the final incident.

Common examples and triggers

One-off fundamental breaches (e.g., pay cut, demotion)

Some cases involve a clear, single breach that is serious enough on its own to justify resignation. For example, an employer might impose a significant pay cut, unilaterally demote an employee, or suspend them without proper reason. These actions may represent a repudiatory breach of contract.

Series of smaller incidents and the “last-straw” rule

Constructive dismissal can also arise from a series of incidents that, taken together, amount to a breakdown in trust and confidence. Under the “last straw” doctrine, a relatively minor incident may become the final act that prompts resignation, provided it is linked to earlier behaviour by the employer.

Bullying, harassment, unsafe working conditions

Employees may also resign due to ongoing bullying or harassment that the employer fails to address, or because of working conditions that are unsafe or intolerable. A consistent failure to investigate complaints or protect staff from harm may amount to a fundamental breach of the implied duty of trust and confidence.

Eligibility and time limits

Employee status and length of service requirements

Only employees (not self-employed contractors or workers) can bring a constructive dismissal claim under unfair dismissal law, and employees must have two years’ continuous service at the date of dismissal in order to bring a claim for constructive dismissal in the Employment Tribunal.

Time limits: three months less one day (plus Early Conciliation)

Claims must usually be lodged with the Employment Tribunal within three months less one day from the effective date of termination. Before filing, the employee must contact ACAS to begin Early Conciliation, which can extend the time limit depending on the duration of the process.

Exceptions where service length does not apply

Certain cases do not require two years’ service. For instance, if the reason for the constructive dismissal relates to a protected characteristic (such as discrimination) or to whistleblowing, the employee can bring a claim regardless of length of service.

Claiming constructive dismissal

Bringing a claim to the Employment Tribunal

If informal resolution or conciliation does not succeed, the employee can submit an ET1 claim form to the Employment Tribunal. The claim should outline the specific breaches relied upon, the relevant dates, and the losses suffered. Supporting evidence—such as emails, letters, or meeting notes—can be critical to the success of the case.

When to pursue a contractual claim instead

In some situations, employees may instead pursue a breach of contract claim in the civil courts (or Employment Tribunal, if within its jurisdiction). This might be appropriate if the employee is seeking damages for unpaid salary, notice pay, or other contractual losses rather than claiming constructive unfair dismissal.

Remedies and compensation available

If successful, remedies can include a basic award (calculated like statutory redundancy pay) and a compensatory award to reflect loss of earnings and benefits. The Tribunal will consider factors such as the employee’s salary, length of service, efforts to find new work, and any contribution they may have made to the situation.

Practical steps for employees

Raising a grievance before resignation

Before resigning, employees are generally advised to raise a formal grievance with their employer. This shows that they gave the employer an opportunity to address the issue. Failure to do so could reduce compensation, as Tribunals may consider whether internal procedures were followed.

Recording evidence and documentation

Maintaining a clear record of events is essential. Employees should keep copies of relevant correspondence, contracts, meeting notes, and any evidence of complaints or concerns raised. This documentation can help demonstrate the nature and impact of the employer’s conduct.

Seeking legal advice and planning your next move

Resigning without another job can have significant financial and legal implications. Employees who believe they are facing a potential constructive dismissal situation should seek advice from an employment lawyer before taking action. Professional guidance can help clarify whether the employer’s conduct meets the legal test and what remedies might be available.

Constructive dismissal occurs when an employee resigns because their employer’s behaviour fundamentally breaches the employment contract. Establishing such a claim requires showing a serious breach, resigning promptly in response to it, and following the correct legal process. Employees considering this step should carefully assess the situation, document their experiences, and seek legal advice to ensure their rights are properly protected.