A resignation is not always a voluntary departure. If your employer’s conduct has made your position untenable, you may be considering a constructive dismissal claim. These claims can be legally and emotionally difficult because the employee usually has to resign before bringing the case. Taking advice before acting can protect your position and help you make an informed decision.

What is a constructive dismissal claim?

Constructive dismissal arises where an employer commits a serious breach of the employment contract and the employee resigns in response to that breach. In legal terms, the employer’s behaviour must be sufficiently serious to show that it no longer intends to be bound by a fundamental term of the contract.

The contract is not limited to the written document you signed when you started work. It also includes implied terms, particularly the duty of mutual trust and confidence. An employer does not have to say that they want you to leave. Their actions, or repeated failure to act, may be enough.

A constructive dismissal claim is often followed by a claim for unfair dismissal. In most cases, an employee needs two years’ continuous service to bring an ordinary unfair dismissal claim. However, there are important exceptions. No qualifying period is needed where the resignation relates to an automatically unfair reason, such as whistleblowing, health and safety concerns, trade union activities, pregnancy or asserting certain statutory rights. Discrimination claims may also be available regardless of length of service.

When might an employer’s conduct be serious enough?

Not every unpleasant workplace experience amounts to constructive dismissal. A difficult manager, a one-off disagreement or a reasonable performance process will not normally meet the legal test by themselves. The key question is whether there has been a fundamental breach and whether the employee resigned because of it.

Examples that may support a claim include a substantial and unjustified reduction in pay, a serious unilateral change to working hours or duties, persistent bullying or harassment, discriminatory treatment, failure to address a serious grievance, or a demotion without contractual authority. An employer’s failure to provide a safe working environment may also be relevant, particularly where concerns have been raised and ignored.

Sometimes the issue is one major incident. In other cases, it is a pattern of behaviour that gradually destroys trust and confidence. This is sometimes called the ‘last straw’ principle. A final incident, even if relatively minor when viewed alone, may allow an employee to resign where it follows earlier unreasonable conduct that has not been resolved.

Context matters. For example, a change in duties may be permitted under a properly drafted flexibility clause, but the employer must still act reasonably and in good faith. Similarly, an employer may need to investigate a complaint before reaching a conclusion. Delay alone is not necessarily a breach, but an unexplained or dismissive failure to deal with serious allegations can be.

Common situations that require careful assessment

Pay and status disputes frequently lead to enquiries. If an employer cuts salary, removes commission or changes a senior employee’s responsibilities without agreement, this may be a serious contractual issue. The answer will depend on the contract, workplace custom and whether the employee accepted the change.

Bullying, harassment and discrimination cases also require a close review of the facts. Employers are expected to take complaints seriously and investigate them fairly. Where an employee raises concerns about race, sex, disability, religion, pregnancy, age or another protected characteristic, the facts may support both constructive dismissal and discrimination claims.

Employees who are signed off sick because of workplace stress should be particularly cautious. Resigning while unwell can feel like the only practical option, but it may affect income, benefits and the evidence available. Medical records, fit notes and communications with the employer can become important later.

Resigning too late can affect your position

Timing is one of the most difficult features of constructive dismissal. You must usually resign promptly after the fundamental breach. If you remain in employment for too long without making clear that you are working under protest, the employer may argue that you accepted the conduct and affirmed the contract.

There is no fixed number of days or weeks that applies in every case. An employee may reasonably need time to obtain legal advice, raise a grievance, find alternative work or consider their finances. However, continuing as normal for a lengthy period can create risk.

Your resignation letter should be factual and clear. It should identify the conduct that has led to your decision and state that you are resigning in response to the employer’s breach of contract. Avoid exaggerated language or accusations that cannot be supported. You do not need to set out every legal argument, but a vague letter saying only that you are leaving for ‘personal reasons’ may make a later claim harder to prove.

If you feel unable to work notice because of the seriousness of the breach, that should also be addressed carefully. Leaving immediately may be justified in some circumstances, but it can give rise to further dispute over pay and notice. Obtaining advice before resigning is usually sensible.

Raise concerns and preserve the evidence

A formal grievance is not always a legal requirement before resignation, especially where the situation is urgent or the relationship has completely broken down. Nevertheless, raising concerns in writing can give the employer an opportunity to put matters right and creates a record of what happened.

Follow any grievance procedure in your contract or staff handbook where it is safe and realistic to do so. Explain what has occurred, when it happened, who was involved and what outcome you are seeking. Keep copies of the grievance, responses, meeting notes and any appeal.

Useful evidence may include emails, messages, payslips, rotas, appraisals, policies, diary notes and relevant medical evidence. Witnesses can be valuable, although colleagues may understandably be reluctant to become involved while they remain employed. Keep records lawfully and do not take confidential client information, commercially sensitive documents or material you are not entitled to retain.

The ACAS Code of Practice encourages employers and employees to deal with workplace grievances fairly. An unreasonable failure to follow the Code can affect compensation, with an Employment Tribunal able to increase or reduce certain awards by up to 25%.

Tribunal deadlines are short

Most Employment Tribunal claims must be started within three months less one day of the effective date of termination. In a constructive dismissal case, this is usually the date your employment ends. The deadline can pass quickly while you are dealing with the practical consequences of resigning.

Before lodging a tribunal claim, you will normally need to notify ACAS and begin Early Conciliation. This process pauses the usual time limit while conciliation is underway, but it is not a reason to delay. ACAS may help the parties reach a settlement, although neither side is required to agree.

A settlement agreement can provide a negotiated exit, agreed reference and compensation without tribunal proceedings. It is a voluntary agreement, and independent legal advice is required for it to be valid. Whether settlement is appropriate depends on the strength of the case, the working relationship, financial pressures and the employee’s priorities.

What compensation may be available?

Where an unfair constructive dismissal claim succeeds, compensation can include a basic award and a compensatory award for financial loss. This may cover lost earnings, notice pay, pension loss and certain benefits, subject to statutory limits and the facts of the case. Tribunal compensation limits change periodically, so current advice is essential.

Employees are generally expected to take reasonable steps to reduce their losses by looking for alternative work. Keep evidence of job searches, applications, interviews and any offers received. A Tribunal may reduce compensation if it considers that suitable work could reasonably have been obtained sooner.

If discrimination, whistleblowing or another separate claim is established, different remedies may be available. Compensation for discrimination can include injury to feelings, while some claims do not have the same statutory compensation cap as ordinary unfair dismissal.

Get advice before making an irreversible decision

Constructive dismissal claims are evidence-led and fact-specific. A strong case is not simply about proving that work became unpleasant. It requires a clear connection between a serious contractual breach, your decision to resign and the financial loss that followed.

White Horse Solicitors & Notary Public can assess the circumstances of your employment, review the relevant documents and advise on grievances, settlement discussions and Tribunal proceedings. Before sending a resignation letter, take time to understand your options. The right next step may be to raise a formal complaint, negotiate an agreed exit or act promptly to protect a claim – but that decision should be made with a clear view of the legal and practical consequences.