Do I need two years of service to claim constructive dismissal?

Yes for the unfair dismissal element of the claim, which carries the basic and compensatory awards. The two-year qualifying period is set by section 108 of the Employment Rights Act 1996. There is a narrow set of exceptions where service is not required, including dismissal connected to whistleblowing, trade union activity, jury service, asserting a statutory right, or for an automatically unfair reason. Discrimination claims have no service requirement.

I have less than two years of service. Is anything available?

Possibly. If the underlying breach overlaps with discrimination under the Equality Act 2010, you can bring a discrimination claim with no service requirement. If the breach involves a protected disclosure (whistleblowing), the unfair dismissal claim is available with no service requirement. A claim for unlawful deduction of wages is also available with no service requirement. Without one of these hooks, a short-service employee usually has no claim.

Do I need to be an employee, or can workers and contractors claim?

Constructive dismissal under section 95 is only available to employees. Workers and self-employed contractors cannot bring an unfair dismissal claim. Status is judged on the substance of the relationship, not the label. Some people who think they are contractors are in fact employees in law. If your status is borderline, take advice before resigning.

What is the strongest evidence I can have?

A formal written grievance raised through the employer's process, the employer's documented response (or failure to respond), and a resignation letter that explicitly references the breach. Add to that contemporaneous notes of the breach itself, witnesses who are willing to give evidence, and any medical evidence linking the conduct to your health.

Can I Claim Constructive Dismissal? UK Eligibility (2026)

The eligibility check in three steps

Before anything else, three gates have to be passed. The person bringing the claim has to be an employee, not a worker or a self-employed contractor. They have to have completed at least two years of continuous service (with a narrow set of exceptions covered below). And the underlying breach has to be a fundamental breach of the contract of employment, serious enough to entitle them to treat the contract as ended.

If any one of the three gates fails, the claim either does not exist or has to be brought under a different legal heading. The most common surprise is the service requirement. The second is employee status; long-running contractor or agency relationships can sometimes be recharacterised as employment, but it is harder to win on status than it sounds.

Employee status

Section 95 of the Employment Rights Act 1996 only applies to employees. The statutory definition of employee is in section 230 of the same Act: someone working under a contract of employment, whether express or implied, whether oral or in writing. Tribunals look beyond the label on the contract and examine the substance.

The classic indicators of employee status are mutuality of obligation (the employer has to offer work, the worker has to accept it), personal service (the worker cannot freely send a substitute), and control (the employer dictates how and when the work is done). The presence of all three points strongly to employment. The absence of all three points to self-employment. A mix puts you in worker territory, where you have some rights but not constructive dismissal.

Agency workers are usually employees of the agency rather than the end client. Casual or zero-hours staff can be employees if the relationship has acquired mutuality of obligation in practice. If you are unsure, take advice on status before resigning, because a mistake here defeats the claim before it starts.

The two-year service rule

Section 108 of the Employment Rights Act 1996 sets a qualifying period of two years of continuous employment for an unfair dismissal claim. Constructive dismissal is a category of unfair dismissal and the same two-year rule applies.

Continuous service is measured by calendar weeks. A short gap between fixed-term contracts can break continuity, but transfers under TUPE preserve it. Periods of unpaid leave are tricky and depend on the reason. The official position is on the GOV.UK continuous employment page.

Narrow exceptions exist where the service requirement is waived. These include dismissals connected to whistleblowing under the Public Interest Disclosure Act 1998, dismissals for trade union activity, dismissals for jury service, and a small set of automatically unfair reasons. If the underlying breach can be framed under one of these, the two-year rule does not apply.

What counts as a fundamental breach

The breach has to be serious enough that, in the eyes of the tribunal, you were entitled to walk away from the contract. Tribunals call this a repudiatory breach. It can be a single, very serious act, or it can be the last in a series of less serious incidents that together breach the implied term of mutual trust and confidence.

For a category-by-category walk-through of conduct that has and has not been found to be fundamental, see the constructive dismissal examples page. The short version: a unilateral pay cut of around 10% or more, a forced demotion, sustained bullying or harassment that the employer fails to address, a serious health and safety failure, refusal to pay wages, and a unilateral change to fundamental terms all typically qualify.

Evidence requirements

The employee carries the burden of proof. Tribunals look for documentary evidence and time stamps. The standard pack consists of contemporaneous notes of the incident, a formal grievance raised in writing through the employer’s process, the employer’s response (or absence of one), and a resignation letter that explicitly references the breach.

Witness evidence helps but only if the witnesses are willing to give evidence under oath at tribunal. Personal-device screenshots of work conversations can be useful but check the data protection and confidentiality position before relying on them, particularly if any contain customer or sensitive personal data.

Medical evidence, where the conduct has affected your health, is often decisive. A GP letter, an occupational health report, or evidence of time off sick directly attributable to the conduct, can strengthen both the breach itself and the compensatory award.

Timing — the affirmation risk

You have to resign in response to the breach, not for some unrelated reason, and you have to do it promptly. If you stay too long after the breach, the tribunal will conclude that you affirmed the contract — accepted the new terms — and the right to bring a claim is lost.

What counts as too long depends on the breach. For a one-off, very serious incident, more than a few weeks is risky. For an ongoing course of conduct, the affirmation question is harder, because the breach is continuing. The safe approach is to raise a written grievance immediately, give a clear and short deadline for a response, and resign within days if the response is inadequate.

The risks of resigning

Resignation is irreversible. Once your last day passes, you have no income, no statutory sick pay from your former employer, no access to internal grievance and appeal processes, and no leverage to negotiate a settlement except via the tribunal process. The financial cost of getting the timing wrong is high.

Before resigning, model your runway with the can I afford to quit calculator. If the underlying dispute might end in a settlement rather than a tribunal hearing, the settlement agreement calculator will show you the gross value of a plausible package. A settlement agreed before resignation, while you still have leverage, is almost always better than the same settlement after.

Tribunal considerations

Tribunals are not in the business of restoring employment. They award compensation. The compensatory award covers actual loss of earnings until you find work paying the same as before, subject to the statutory cap. You have a duty to mitigate by looking for comparable work; an employer who can show you turned down a suitable role will reduce the award.

Tribunals also reduce awards under the ACAS Code. If you did not raise a formal grievance before resigning, the award can be cut by up to 25%, even if you win. If the employer ignored a grievance you did raise, the award can be increased by up to 25%. The process matters as much as the substance.

Costs are not normally awarded against the losing side in employment tribunals, but they can be in cases that are vexatious, unreasonably conducted or have no reasonable prospect. This is one reason to take legal advice before bringing a weak claim.

Practical decision checklist

You are eligible to bring a constructive dismissal claim if all of the following are true. You are an employee in law. You have at least two years of continuous service (or fall within one of the narrow exceptions). There is a fundamental breach by the employer that you can evidence in writing. You have raised it through the formal grievance process. You are ready to resign promptly if the response is inadequate. You can fund the gap between resignation and the next role or settlement. And you can give the tribunal the kind of documentary trail that wins claims.

If you cannot tick all of those, the claim is either unlikely to succeed or carries a financial risk that outweighs the upside. The most common gap is the formal grievance, which costs nothing and shifts the legal position significantly.

Useful calculators

Frequently asked questions

Do I need two years of service to claim constructive dismissal?: Yes for the unfair dismissal element of the claim, which carries the basic and compensatory awards. The two-year qualifying period is set by section 108 of the Employment Rights Act 1996. There is a narrow set of exceptions where service is not required, including dismissal connected to whistleblowing, trade union activity, jury service, asserting a statutory right, or for an automatically unfair reason. Discrimination claims have no service requirement.
I have less than two years of service. Is anything available?: Possibly. If the underlying breach overlaps with discrimination under the Equality Act 2010, you can bring a discrimination claim with no service requirement. If the breach involves a protected disclosure (whistleblowing), the unfair dismissal claim is available with no service requirement. A claim for unlawful deduction of wages is also available with no service requirement. Without one of these hooks, a short-service employee usually has no claim.
Do I need to be an employee, or can workers and contractors claim?: Constructive dismissal under section 95 is only available to employees. Workers and self-employed contractors cannot bring an unfair dismissal claim. Status is judged on the substance of the relationship, not the label. Some people who think they are contractors are in fact employees in law. If your status is borderline, take advice before resigning.
What is the strongest evidence I can have?: A formal written grievance raised through the employer's process, the employer's documented response (or failure to respond), and a resignation letter that explicitly references the breach. Add to that contemporaneous notes of the breach itself, witnesses who are willing to give evidence, and any medical evidence linking the conduct to your health.

General information about UK employment law, not legal advice. Constructive dismissal claims are fact-sensitive and resignation is irreversible. For your specific situation, contact ACAS or an employment-law solicitor before you resign.

Can I claim constructive dismissal?