What Is Constructive Unfair Dismissal?

Constructive unfair dismissal is a legal concept in UK employment law where an employee resigns because their employer has committed a serious breach of contract. Although the employee resigns voluntarily, the law treats the resignation as a dismissal because the employer's conduct made continued employment impossible.

In England and Wales, constructive unfair dismissal claims are brought under the Employment Rights Act 1996, which governs unfair dismissal and related employment protections. These claims are highly fact-specific and depend on whether the employer's conduct fundamentally undermined the employment relationship.

Legal Definition of Constructive Unfair Dismissal

Constructive unfair dismissal occurs when:

An employee resigns in response to a fundamental breach of contract by the employer, entitling them to treat the contract as terminated.

This principle is established in UK case law and reflected in statutory unfair dismissal protections. The key legal idea is that the employer's breach is so serious that the employee is entitled to walk away and treat themselves as dismissed.

The legal test generally involves two stages:

• Whether there was a fundamental breach of contract by the employer
• Whether the employee resigned in response to that breach without delay

The Legal Framework

Constructive unfair dismissal claims are primarily governed by:

• Employment Rights Act 1996 (unfair dismissal provisions)
• Common law contract principles
• Case law on repudiatory breach of contract
• ACAS Code of Practice on Disciplinary and Grievance Procedures (procedural fairness guidance)

The concept is rooted in contract law: if one party seriously breaches the contract, the other party can treat it as ended.

The Key Legal Test for Constructive Dismissal

To succeed in a constructive unfair dismissal claim, an employee must usually prove:

1. Fundamental breach of contract

The employer must have committed a serious breach, often referred to as a “repudiatory breach”. This may involve:

• Breach of the implied term of mutual trust and confidence
• Serious failure to follow contractual procedures
• Unlawful deduction or non-payment of wages
• Significant unilateral changes to job duties or pay
• Bullying, harassment, or victimisation
• Failure to address grievances properly

A widely recognised implied term in employment contracts is that employers must not, without reasonable cause, act in a way that destroys or seriously damages the relationship of trust and confidence.

2. Employee resignation in response to the breach

The employee must resign because of the employer's conduct. This means:

• The breach must be the effective cause of resignation
• The employee must not delay too long before resigning
• The employee should not “affirm” the contract by continuing to work for an extended period after the breach

3. No affirmation of the contract

If an employee continues working for a significant period without objection after the breach, they may be seen as accepting the situation, which can weaken a claim.

Common Examples of Constructive Unfair Dismissal

Constructive dismissal claims often arise in situations such as:

Bullying or harassment

Where an employer or manager creates an intolerable working environment through repeated misconduct.

Unilateral changes to employment terms

For example:

• Significant pay cuts without agreement
• Sudden changes to working hours or location
• Demotion without justification

Failure to deal with grievances

Where an employer ignores or inadequately investigates serious complaints.

Breach of implied trust and confidence

Such as:

• Unfair disciplinary action
• False accusations without evidence
• Public humiliation or unjust treatment

Unsafe working conditions

Where an employer fails to address known health and safety risks.

What Counts as a “Resignation” in Law

To bring a constructive dismissal claim, the employee must resign clearly and unambiguously.

Resignation can be:

• Written (most common)
• Verbal (if clearly communicated)

The resignation must be linked to the employer's breach. Ideally, the employee should state that they are resigning due to the employer's conduct.

Constructive Dismissal vs Unfair Dismissal

These two concepts are often confused but are legally distinct:

• Unfair dismissal: employer terminates the employment contract
• Constructive unfair dismissal: employee resigns due to employer's breach

In both cases, the fairness of the employer's conduct is assessed by an Employment Tribunal.

Legal Requirements to Bring a Claim

To bring a constructive unfair dismissal claim, an employee must usually:

• Be legally classified as an employee
• Have at least two years' continuous service (in most cases)
• Show a fundamental breach of contract
• Show resignation caused by that breach

There are exceptions where no qualifying period is required, such as cases involving discrimination or automatically unfair reasons.

ACAS Code of Practice and Constructive Dismissal

The ACAS Code of Practice on Disciplinary and Grievance Procedures plays an important role in constructive dismissal cases.

ACAS

Tribunals consider whether both employer and employee followed reasonable procedures. Failure to comply may:

• Increase or reduce compensation by up to 25%
• Affect findings on fairness

Time Limits for Claims

Strict deadlines apply:

• Employment Tribunal claims must usually be brought within 3 months less one day of resignation
• ACAS Early Conciliation is required before issuing a claim
• Time limits can be paused during the conciliation process

Failure to act within time limits generally prevents a claim proceeding.

Remedies for Constructive Unfair Dismissal

If a claim succeeds, an Employment Tribunal may award:

1. Compensation

This may include:

• Basic award (based on age, length of service, and pay)
• Compensatory award (loss of earnings and benefits)

2. Loss of earnings

Including future loss where applicable.

3. Injury to feelings (in discrimination-linked cases)

Where applicable alongside unfair dismissal.

4. Reinstatement or re-engagement

Rare, but available in principle.

Common Defences Employers Use

Employers often defend claims by arguing:

• No fundamental breach occurred
• The employee resigned for unrelated reasons
• The employee delayed too long before resigning
• Reasonable steps were taken to address issues
• The conduct complained of was not serious enough

Tribunals assess all evidence objectively, including workplace context.

Practical Legal Considerations

Constructive dismissal claims are often complex because they rely on proving both:

• The seriousness of the employer's conduct
• The causal link between that conduct and resignation

Tribunals also expect employees to act reasonably, including using internal grievance procedures where appropriate.

Key Takeaways

Constructive unfair dismissal occurs when an employee resigns due to a serious breach of contract by the employer. The breach must be fundamental, often involving a breakdown of trust and confidence, and must directly cause the resignation. Claims are governed by the Employment Rights Act 1996 and assessed by Employment Tribunals based on fairness, evidence, and procedure. Remedies may include compensation for loss of earnings where the claim succeeds.