Constructive dismissal — if you resigned due to your employer's conduct

Constructive dismissal is when an employer breaches your contract so seriously that you are forced to resign. In law, that counts as a dismissal — and you can claim unfair dismissal.

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Do I have to file a grievance before resigning?

No, not legally. But filing a grievance first strengthens your claim by showing you tried to resolve it. If you skip grievance and resign, the employer might argue you didn’t give them a chance to fix the problem.

How long can I wait after the breach before resigning?

There’s no fixed limit, but you must resign reasonably promptly. Waiting weeks may be acceptable if the breach is ongoing; waiting 6 months or more risks a finding that you accepted the breach. Resign within weeks if possible.

If I was on probation when I resigned, can I still claim constructive dismissal?

Constructive dismissal is a form of unfair dismissal and requires 2 years’ service. On probation you usually don’t qualify, unless the breach was discriminatory or whistleblowing-related (which have no service requirement).

What if the employer contests there was a breach?

The tribunal assesses the facts. Provide evidence — pay stubs, emails, messages, witness testimony, contracts. The employer will argue the change was contractually authorised or the conduct acceptable, so documentation is critical.

Can I claim constructive dismissal if I left for family reasons?

No. The resignation must be in response to a fundamental breach of contract. Personal/family reasons don’t qualify unless the employer caused or contributed to the situation — for example, by refusing reasonable flexible working.

If I resign due to constructive dismissal, do I still get notice pay?

You’re entitled to accrued salary, holiday pay, and contractual benefits up to the resignation date. In your tribunal claim you can also claim damages for the notice period you didn’t work.

Constructive dismissal — if you resigned due to your employer's conduct

Last updated: April 2026

You can resign and still claim dismissal if forced to

Required for ordinary unfair dismissal claim

Employer must breach core contract terms seriously

What is constructive dismissal?

Constructive dismissal occurs when an employer fundamentally breaches your employment contract, making it impossible or intolerable for you to continue working. You resign in response to the breach. In law, this is treated as a dismissal.

Western Excavating (ECC) Ltd v Sharp [1978] QB 761

"If the employer's conduct is such that it goes to the root of the contract of employment, or is of such a character that the employee cannot reasonably be expected to tolerate the treatment accorded to him, the employee is entitled to leave without notice and claim constructive dismissal."

In other words: your employer must breach a fundamental contractual obligation in such a way that you are justified in resigning.

What counts as a fundamental breach?

Non-payment or significant underpayment of wages

Failing to pay your salary, repeatedly paying late, or deducting wages unlawfully.

Major change to role, duties, or location

Unilaterally moving you to a different role, location, or drastically reducing responsibilities or hours — without consent or contractual authority.

Significant breach of health and safety obligations

Failing to provide a safe workplace, not addressing serious hazards, or forcing you to work in unsafe conditions.

Severe harassment or bullying by employer/management

Persistent hostile treatment, aggressive behavior, or abusive management that makes the job intolerable.

Failure to provide necessary tools, support, or reasonable working conditions

Not providing essential equipment, leaving you without support, or imposing unreasonable conditions.

Breach of confidentiality or trust

Employer disclosing personal information, breaching privacy, or violating agreed confidentiality terms.

Demotion or removal of management responsibility without cause

Unilaterally demoting you or removing your authority without contractual authority to do so.

Enforced imposition of new terms against your will

"Sign this new contract or you're dismissed" — if the new terms are substantially less favorable.

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Common constructive dismissal scenarios

Scenario 1: Sudden role change with pay cut

You are told your role is being restructured and you are moved to a different department with significantly fewer hours and 20% pay cut. You were not consulted and have no contractual right to change roles. You resign.

Material change to role and pay without contractual authority = fundamental breach. If you resign in response, you likely have constructive dismissal.

Scenario 2: Relocation without consent

Your employer tells you, with one month's notice, that your office is closing and you must relocate 50 miles away. Your contract states your location is London. You cannot relocate. You resign.

Unilateral change of location without contractual authority. If relocation is impractical or the contract specifies location, this is a fundamental breach.

Scenario 3: Wage non-payment or delay

Your employer fails to pay your salary on the agreed date. The delay continues for two months. You ask repeatedly for payment and receive excuses. After the second month without pay, you resign.

Non-payment of wages is a fundamental breach. You are justified in resigning. This is likely constructive dismissal.

Scenario 4: Persistent harassment by manager

Your line manager subjects you to regular aggressive outbursts, publicly humiliates you in meetings, and makes dismissive comments. You raise formal grievances; your employer does little to address it. After months of this conduct, you resign.

Persistent serious harassment breaches the employer's duty to provide a safe, respectful workplace. Failure to address grievances makes the situation worse. Likely constructive dismissal, possibly also harassment/bullying discrimination.

Scenario 5: Demotion without cause

You are a manager with responsibility for a team. Your employer, without warning or explanation, removes your management responsibilities and reassigns you to a junior role — without contractual authority to demote. You resign.

Unilateral demotion without contractual authority = fundamental breach. You likely have constructive dismissal.

The process and key legal points

1. The employer must breach a fundamental contractual term

Not every breach counts. Minor breaches (forgetting to include you in a meeting, minor scheduling error) do not trigger constructive dismissal. The breach must go to the root of the contract: pay, location, role, safety, trust, or similar core terms.

2. The treatment must make the job intolerable

Courts apply an objective test: would a reasonable person, in your position, consider the job intolerable? Not your subjective feeling, but a reasonable assessment. Courts consider duration, severity, and impact.

3. You must resign in response to the breach

You cannot continue working for months after the breach and then claim constructive dismissal. You must resign reasonably promptly — usually within weeks, not months. If you wait too long, you may be deemed to have "accepted" the breach and forfeited your claim.

4. You must resign before the employer "exits" the employment

If the employer actually dismisses you (makes you redundant, fires you) before you resign, you cannot claim constructive dismissal. You would claim actual dismissal instead. The constructive dismissal claim applies only if you resign.

5. You must have 2 years of service

Constructive dismissal claims require 2 years of continuous service, just like ordinary unfair dismissal claims.

However, if the breach is discriminatory (based on a protected characteristic) or a whistleblowing retaliation, the 2-year requirement is waived.

6. You must file within 3 months of resignation

Employment tribunal claims must be filed within 3 months of the date of termination (your resignation date).

After 3 months, your claim is time-barred unless you can show it was not reasonably practicable to file in time.

What NOT to do if considering constructive dismissal

• Don't resign in the heat of the moment.
• Take time to document the breaches and consider your claim. Emotional resignation can be viewed as lack of serious intent.
• Don't resign without documenting the breaches.
• Write down dates, what happened, who was involved, impact on you. This evidence is critical.
• Don't wait months to resign.
• If you decide the job is intolerable, resign within a reasonable timeframe (weeks, not months). Waiting suggests you accepted the breach.
• Don't resign without trying internal appeal or grievance first (optional).
• Raising a formal grievance shows you took the matter seriously and gave the employer a chance to remedy it. This strengthens your claim, but is not legally required.
• Don't resign without keeping copies of all documents.
• You will need evidence: emails, performance reviews, grievance records, meeting notes, anything showing the breach and the employer's response.

To prove constructive dismissal, you need evidence of the breach and that it made the job intolerable:

• Emails, messages, or written records of the breach (role change, pay cut announcement, bullying, etc.)
• Your contract and any amendments (to show what was agreed vs. what changed)
• Pay stubs showing underpayment (if wage-related)
• Formal grievance letters or complaints you raised
• Responses from the employer
• Meeting notes, performance reviews, or communications showing the breach
• Your resignation letter (state the reasons for resigning, referencing the breach)
• Any witnesses to the breach or impact (colleagues, managers)
• Your health records if the conduct affected your wellbeing (GP notes, sick leave dates)

Your resignation letter should clearly state the reason you are resigning — that your employer has breached the contract and you can no longer tolerate the job. This contemporaneous statement of reason is valuable evidence.

Frequently asked questions

Do I have to file a grievance before resigning?

No, not legally. You can resign without going through internal grievance or appeal procedures. However, filing a grievance first (and giving the employer a chance to remedy the breach) strengthens your claim. It shows you took the matter seriously and tried to resolve it. If you skip grievance and resign, the employer might argue you did not give them a chance to fix the problem. Filing a grievance is strategic but not required.

How long can I wait after the breach before resigning?

There is no fixed time limit, but you must resign "reasonably promptly." Courts have accepted resignations weeks or a couple of months after the breach, particularly if the breach was ongoing. However, if you wait 6 months or longer, courts may find you "accepted" the breach and forfeited your claim. The longer you wait, the harder it is to argue the job became intolerable. Resign within weeks if possible.

If I was on probation when I resigned, can I still claim constructive dismissal?

Constructive dismissal is a form of unfair dismissal and requires 2 years of service

. If you were on probation, you typically do not have 2 years yet, so you cannot claim constructive (or ordinary) unfair dismissal. However, if the breach was discriminatory (based on a protected characteristic) or related to whistleblowing, you can claim those protections without the 2-year requirement.

What if I resign and the employer contests that there was a breach?

The tribunal will assess the facts. If you claim non-payment of wages, provide pay stubs. If you claim harassment, provide emails, messages, witness testimony, and dates. If you claim role change, provide the contract and evidence of the unilateral change. The employer will argue the change was contractually authorized, the behavior was acceptable, or the treatment not as severe as you claim. Evidence is critical. Start My Claim helps you organize your evidence.

Can I claim constructive dismissal if I left due to family reasons (relocation, care), not the employer's breach?

No. The resignation must be in response to a fundamental breach of contract. If you leave because you need to relocate for family reasons (nothing to do with the employer), that is a resignation for personal reasons, not constructive dismissal. The link between the breach and your resignation must be clear. If the employer's refusal to allow flexible working or relocation contributed to your family situation becoming untenable, that is different — but you need to show the employer caused or contributed to the problem.

If I resign due to constructive dismissal, do I still get notice pay?

Yes. In constructive dismissal, you resign without notice because the employer has breached the contract. However, you are entitled to your accrued salary, holiday pay, and any other contractual benefits up to the date of resignation. The employer cannot withhold these. Additionally, in your tribunal claim, you can claim damages for loss of notice pay (the wages you would have earned during the notice period you did not work).

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