What Is Constructive Dismissal in Employment Law?

Constructive dismissal is a legal concept in UK employment law that applies when an employee resigns because of their employer's conduct. Although the employee formally resigns, the law may treat the resignation as a dismissal if the employer has committed a serious breach of contract.

It is governed primarily by the Employment Rights Act 1996, which recognises that dismissal can occur where an employee terminates their contract due to the employer's behaviour.

Legal definition of constructive dismissal

Constructive dismissal occurs where:

• an employer commits a serious (fundamental or repudiatory) breach of contract, and
• the employee resigns in response to that breach, and
• the employee does not delay or “accept” the breach by continuing in the role for too long.

The principle was established in case law, including Western Excavating (ECC) Ltd v Sharp, which confirmed that the breach must be so serious that it entitles the employee to treat the contract as terminated.

In legal terms, it is often described as “constructive unfair dismissal”, because a successful claim is usually brought as an unfair dismissal claim.

When constructive dismissal may arise

Constructive dismissal typically involves conduct that destroys or seriously undermines the employment relationship, particularly the implied term of mutual trust and confidence.

Common examples include:

• Failure to pay wages or repeated late payment
• Unlawful demotion or removal of key responsibilities
• Significant and unilateral changes to working hours, duties, or location
• Workplace bullying, harassment, or discrimination not addressed by the employer
• Failure to properly handle grievances or complaints
• Creating unsafe or intolerable working conditions

These situations may consist of a single serious incident or a series of incidents that, taken together, amount to a breach.

The legal test for constructive dismissal

To succeed in a claim, an employee generally must show:

1. A fundamental breach of contract

This may relate to:

• express contractual terms (such as pay or job role), or
• implied terms, particularly trust and confidence.

2. Resignation caused by the breach

The employee must resign because of the employer's conduct, not for unrelated reasons such as obtaining another job.

3. Prompt resignation

Delays may be interpreted as acceptance of the breach, which can weaken or defeat a claim.

4. No “affirmation” of the contract

Continuing to work for an extended period after the breach can be treated as acceptance of the situation.

Constructive dismissal vs unfair dismissal

These are distinct legal concepts:

• Unfair dismissal: the employer ends the contract.
• Constructive dismissal: the employee ends the contract due to the employer's conduct.

However, if constructive dismissal is proven, it is usually treated as unfair dismissal, allowing a claim to be brought in an employment tribunal.

Eligibility to bring a claim

In most cases, an employee must have:

• At least 2 years' continuous service, and
• status as an employee (not self-employed or agency worker)

However, the 2-year requirement does not apply where the resignation relates to automatically unfair reasons, such as:

• whistleblowing
• discrimination under the Equality Act 2010
• asserting statutory rights (for example, minimum wage or working time rights)
• health and safety breaches

Time limits for making a claim

Strict deadlines apply:

• 3 months less 1 day from the effective date of termination
• The clock usually starts from the resignation date or end of notice period

Before bringing a claim, employees are generally expected to start ACAS Early Conciliation, which pauses the limitation period while it is ongoing.

Practical steps before resignation

Constructive dismissal claims are often difficult to prove. Employment tribunals expect employees to show they attempted to resolve issues before resigning.

Common steps include:

• Raising concerns informally with management
• Submitting a formal grievance
• Keeping written records of incidents
• Reviewing the employment contract and policies
• Seeking advice before resigning

Failing to follow reasonable steps can weaken a claim.

Risks and limitations

Constructive dismissal claims involve several challenges:

• High legal threshold for “fundamental breach”
• Risk that resignation is viewed as voluntary
• Employer may argue the issue was not serious enough
• Evidence burden lies heavily on the employee
• Compensation is not guaranteed even if a breach is shown

Tribunals assess both the seriousness of the employer's conduct and the employee's response.

Potential outcomes if a claim succeeds

If constructive dismissal is established, remedies may include:

• Compensation for financial losses (subject to statutory limits and calculation rules)
• Basic award (similar to redundancy calculation)
• Compensatory award for loss of earnings
• Possible adjustments for procedural fairness or contributory conduct

Each case is assessed individually by an employment tribunal.

Key Takeaways

Constructive dismissal occurs when an employee resigns due to an employer's serious breach of contract. The law treats the resignation as a dismissal if the breach is fundamental and directly causes the employee to leave. To succeed in a claim, the employee must show a serious contractual breach, prompt resignation, and clear causation. Strict eligibility rules and time limits apply, and most cases require early use of grievance procedures and ACAS Early Conciliation.