Unfair Dismissal UK: Your Rights Explained (2026)

At a glance

• Qualifying period today: 2 years' continuous service for an 'ordinary' unfair dismissal claim, under section 108 of the Employment Rights Act 1996 - check GOV.UK, as this is due to fall to 6 months from 1 January 2027 under the Employment Rights Act 2025.
• Day-one protection: dismissals for reasons the law treats as automatically unfair - whistleblowing, pregnancy and family leave, health and safety activity, asserting a statutory right, and others - need no qualifying period at all, now or after the 2027 changes.
• The fairness test: section 98 of the Employment Rights Act 1996 asks two questions - did the employer have one of five potentially fair reasons, and did they act reasonably in treating it as sufficient to dismiss.
• Tribunal time limit today: 3 months less 1 day from the effective date of termination (section 111), extending to 6 months for claims arising on or after 1 October 2026 - check GOV.UK and Acas before relying on any deadline.
• Acas early conciliation: notifying Acas is compulsory before most tribunal claims and currently pauses your time limit for up to 12 weeks.
• Compensation: a basic award plus a compensatory award, the latter currently capped at the lower of a set statutory maximum or 52 weeks' gross pay - check GOV.UK for the current cap, which rises every April and is due to be abolished entirely from 1 January 2027.
• Not yet in force: the 2027 changes described on this page (6-month qualifying period, uncapped compensation) apply to dismissals from 1 January 2027 onwards. For anything happening before that date, the current 2-year rule and the current compensation cap still apply.

What counts as unfair dismissal?

Unfair dismissal is a statutory right created by the Employment Rights Act 1996. Section 94 gives most employees the right not to be unfairly dismissed by their employer. Section 98 sets out how a tribunal decides whether a dismissal was fair.

The test has two stages:

1. The reason. The employer must show the reason (or, if there is more than one, the principal reason) for the dismissal, and that it falls within one of the categories the law recognises as potentially fair.
2. The process and reasonableness. Even where the reason is a proper one, the tribunal must go on to ask whether, in the circumstances - including the size and administrative resources of the employer - the employer acted reasonably in treating that reason as sufficient to dismiss, judged "in accordance with equity and the substantial merits of the case".

Both stages matter. A dismissal can be unfair because the reason itself was not a genuine, potentially fair one, or because the reason was valid but the employer handled it badly - for example by skipping an investigation, refusing to hold a hearing, or denying an appeal.

Who is protected, and from when: the qualifying period

Unfair dismissal protection under section 94 only applies to employees, not to most agency workers, contractors or the genuinely self-employed - see our guide on agency worker rights if you are unsure which category you fall into, since agency workers are usually employed by the agency rather than the business they are placed with.

For an ordinary unfair dismissal claim, section 108 of the Employment Rights Act 1996 currently requires two years of continuous employment ending with the effective date of termination. This has been the rule since 6 April 2012.

This is changing, but not yet. The Employment Rights Act 2025 (which received royal assent on 18 December 2025) will cut the ordinary qualifying period to six months. The government has stated it intends to commence this change on 1 January 2027, extending protection from that date to employees who already have six months' service, with others gaining it once they reach the six-month mark. For any dismissal with an effective date of termination before 1 January 2027, the current two-year rule still applies. Always check GOV.UK for the current commencement position before relying on either figure.

Automatically unfair reasons apply from day one, with no qualifying period, both now and after the 2027 changes. These include dismissal connected to:

• pregnancy, maternity, or taking family leave (parental, paternity, adoption or shared parental leave)
• whistleblowing - making a protected disclosure about wrongdoing
• health and safety activities, such as raising a genuine safety concern
• asserting a statutory right, such as the right to be paid the National Minimum Wage
• trade union membership or activities
• jury service

This is not an exhaustive list, and some of these grounds can also amount to unlawful discrimination under the Equality Act 2010 - for example, dismissal connected to pregnancy, or dismissal that disproportionately affects an older or younger employee, which may support an age discrimination claim alongside or instead of an unfair dismissal claim.

The five potentially fair reasons

Section 98(1)-(2) of the Employment Rights Act 1996 recognises five categories of reason capable of justifying a dismissal:

| Reason | What it covers | |---|---| | Capability | The employee's skill, aptitude, health or physical/mental quality to do the job - includes long-term ill health and poor performance | | Conduct | Behaviour at work, ranging from minor misconduct to gross misconduct justifying dismissal without notice | | Redundancy | The role, or the need for employees to do that kind of work, has genuinely reduced or ceased | | Illegality / statutory restriction | Continuing to employ the person would break the law - for example, a driver losing a licence required for the role | | Some other substantial reason (SOSR) | A residual category for a substantial reason of a kind capable of justifying dismissal, not covered by the other four |

A reason that does not fit one of these five categories - or a reason given that is vague, shifting, or not the real explanation - is a warning sign that a dismissal may be unfair at the first stage of the section 98 test, before the process is even considered.

Capability dismissals for ill health

Long-term ill health can be a fair capability reason, but an employer is expected to act carefully: obtaining up-to-date medical evidence, consulting the employee, considering reasonable adjustments, and exploring alternative roles before deciding to dismiss. See our detailed guide on dismissal due to illness and capability procedures for what a fair process should look like.

If the employee has a disability within the meaning of the Equality Act 2010, the employer owes an additional duty under sections 20 and 21 of that Act to make reasonable adjustments to avoid the employee being put at a substantial disadvantage. Dismissing without properly considering that duty can make the dismissal both unfair and unlawfully discriminatory - see our guide on disability discrimination tribunal claims.

Was the process fair? The reasonableness test

Even with a genuine, potentially fair reason, section 98(4) requires the tribunal to ask whether the employer acted reasonably in treating that reason as sufficient to dismiss. In practice, tribunals look closely at whether the employer followed a fair procedure, guided by the Acas Code of Practice on Disciplinary and Grievance Procedures. A fair process generally involves:

1. A proper investigation into what happened.
2. Written notice of the allegation or issue, with enough detail to respond to it.
3. A hearing or meeting where the employee can respond and be accompanied.
4. A genuinely considered decision, rather than a foregone conclusion.
5. The right to appeal against the outcome.

An employment tribunal can find a dismissal unfair even where the underlying reason was real - for example, genuine misconduct - if the process used to reach the decision was seriously flawed. An unreasonable failure by either side to follow the Acas Code can also affect any compensation awarded, since a tribunal has the power to adjust an award by up to 25% for an unreasonable failure to comply.

Worked example: a flawed process outweighing a genuine reason

Consider a fictional employee, Priya, dismissed for poor performance after her employer decided, without warning her or holding any meeting, that she was "not up to the job" and terminated her contract with pay in lieu of notice the same afternoon. Even if Priya's performance genuinely had been below standard - a capability reason recognised by section 98(2) - the complete absence of investigation, warning, or a chance to respond would very likely make the dismissal procedurally unfair under section 98(4), regardless of how weak her performance actually was.

Unfair dismissal vs related claims

Wrongful dismissal is a separate, contractual claim about notice - typically that the employer failed to give the notice period, or pay in lieu of notice, that the contract required. It can be brought alongside an unfair dismissal claim but is assessed under ordinary contract law principles rather than section 98.

Constructive dismissal arises where the employee resigns in response to a fundamental breach of contract by the employer, rather than being dismissed outright. It is treated as a dismissal for unfair dismissal purposes, but requires proving the breach first. See our guide to constructive dismissal claims for how that test works.

Discrimination claims under the Equality Act 2010 (for example on grounds of disability, age, sex, or pregnancy) can overlap with unfair dismissal but do not require any qualifying period of service, and can produce uncapped compensation for injury to feelings even under the current unfair dismissal regime.

Time limits: the three-months-less-a-day rule

Section 111 of the Employment Rights Act 1996 currently sets the deadline for an unfair dismissal claim at three months less one day from the effective date of termination - in almost all cases, the last day of the notice period, or the date of dismissal if no notice was given.

Before issuing a tribunal claim, you must notify Acas so it can offer early conciliation. Early conciliation can currently last up to 12 weeks, and notifying Acas within your time limit pauses the clock while conciliation is ongoing - if it does not resolve matters, you will have at least one month left from the date of your certificate to issue your claim. Employment tribunals rarely accept late claims, so act promptly rather than waiting.

A near-term change to be aware of: the Employment Rights Act 2025 will extend the standard time limit from three months to six months for tribunal claims arising from acts or omissions on or after 1 October 2026. Claims based on events wholly before that date remain subject to the current three-months-less-a-day limit. Given how close this change is, check GOV.UK and Acas for the exact position that applies to your dismissal date before assuming which limit applies.

What compensation can you get?

Where a tribunal finds a dismissal unfair, it can award:

• A basic award, calculated under a statutory formula based on age, length of service (capped at 20 years) and weekly pay (subject to a statutory cap on a week's pay that increases every April).
• A compensatory award, covering financial losses actually flowing from the dismissal - lost wages, lost benefits and pension loss, for example - assessed on what is "just and equitable" and reduced for any failure by the employee to mitigate their loss.
• Reinstatement or re-engagement, ordering the employer to give the job back (or an equivalent one), though tribunals award these remedies relatively rarely in practice, largely because they depend on it being practicable for the employer to comply.
• An additional award, if the employer fails to comply with a reinstatement or re-engagement order.

The compensatory award is currently subject to a statutory cap - the lower of a fixed maximum figure or 52 weeks' gross pay - set under section 124 of the Employment Rights Act 1996. Both this cap and the statutory week's-pay figure that feeds the basic award are reviewed and typically increase every April, so always check GOV.UK for the current figures rather than relying on a number quoted here or elsewhere.

This is also changing. The Employment Rights Act 2025 will remove the compensatory award cap entirely for dismissals from 1 January 2027 - tribunals will then assess the compensatory award solely by reference to the claimant's actual and projected losses, with no upper limit. According to the government's own factsheet on the change, few awards currently reach the existing cap in practice - the median unfair dismissal award reported for 2023/24 was well below it.

Settlement agreements

Many disputes are resolved before a tribunal hearing through a settlement agreement - a binding contract in which the employee agrees to waive their tribunal claims in return for an agreed payment. For the waiver to be legally effective under section 203 of the Employment Rights Act 1996, the employee must first receive advice from a "relevant independent adviser" - usually a solicitor, or a certified trade union or advice-centre representative - on the terms and effect of the agreement, including its impact on the ability to bring a tribunal claim. There is no strict legal requirement for the employer to pay towards that advice, but doing so is standard market practice, since without it the agreement is not binding.

Before signing, it is worth thinking through the strength of any potential claim, the tax treatment of the payment, what reference (if any) has been agreed, and any post-termination restrictions the agreement imposes.

What to do if you think you've been unfairly dismissed

1. Check your status and length of service. Confirm you are an employee (not a worker, agency worker or self-employed contractor) and work out your continuous service against your actual start date and any breaks. If the reason looks automatically unfair, the qualifying-period question may not matter at all.
2. Get the reason in writing. Ask your employer for a clear statement of the reason for dismissal and compare it against the five potentially fair reasons. A vague or shifting explanation is often significant.
3. Gather the paperwork. Collect invitation letters, meeting minutes, the outcome letter, any appeal correspondence, and anything showing what process (if any) was followed.
4. Notify Acas for early conciliation promptly. This is a compulsory step before most claims and it pauses your time limit while it runs - but only if you notify Acas within that time limit in the first place.
5. Work out your deadline precisely. Calculate three months less one day from your effective date of termination (or the applicable limit if the 2027 changes have taken effect by your dismissal date), and do not leave it until close to the deadline to act.
6. Decide whether to bring a claim. If conciliation does not resolve things, you can issue a claim using form ET1 within your deadline. Think about what outcome you actually want - compensation, or reinstatement - and be realistic about the evidence and time involved.
7. Take advice early if the position is unclear. Dismissal law turns on detail - the exact reason given, the exact process followed, and the exact dates involved - and an early conversation with a legal adviser can help you understand where you stand before the deadline gets close.

This guide provides general information about unfair dismissal law in England and Wales. It is not legal advice and does not create a solicitor-client relationship - it does not take account of your specific circumstances, and reading it is not a substitute for advice tailored to your situation. LegalDocuments.co.uk is not a law firm and is not regulated by the Solicitors Regulation Authority. The law described was accurate as at July 2026 and parts of it are due to change on 1 October 2026 and 1 January 2027 as set out above - always check GOV.UK and legislation.gov.uk for the current position, particularly for time limits and compensation figures, before acting.