This guide covers England, Wales and Scotland. Employment law differs in Northern Ireland.
In brief: An employer does not always have to use a document called a PIP before dismissing for poor performance. Whether you can challenge the dismissal depends first on your length of service, whether a protected reason applies and your tribunal deadline. After that, what matters is whether you were warned and given a real chance to improve.
Last updated: October 2026
By Yerty | This guide was created using analysis of tribunal cases and official ACAS/Gov.uk guidance.
Can You Be Dismissed for Poor Performance Without a PIP?
Being dismissed for "poor performance" is hard enough. Being told that after no formal performance improvement plan, no clear targets or little warning can leave you wondering whether your employer was allowed to skip straight to dismissal.
The short answer is that a formal PIP is not legally required. Whether you can do anything about the dismissal depends on a small number of questions, and this guide takes them in the order they decide your position: whether you have unfair dismissal protection at all, whether a protected reason might apply, how long you have to act, and only then whether the process your employer used was fair.
Important: This guide provides information about employment law in England, Wales and Scotland. Yerty is not a law firm and does not provide legal advice. Every situation is different. If you have been dismissed, the tribunal deadline runs from your dismissal date. Consider taking legal advice promptly if you may want to challenge the dismissal.
Can an employer dismiss you for poor performance without a PIP?
Yes, potentially.
There is no statutory rule saying an employer must issue a document called a PIP before dismissing for capability. Acas describes a PIP as something employers could consider if informal steps do not work.
That does not mean an employer can move from an unspoken concern to dismissal with no process. Acas says dismissal for capability should be a last resort and that employers should have evidence of both the employee's poor performance and the steps taken to support improvement.
Under section 98 of the Employment Rights Act 1996, capability is a potentially fair reason for dismissal. Section 98(4) then sets the test:
"the determination of the question whether the dismissal is fair or unfair (having regard to the reason shown by the employer)— (a) depends on whether in the circumstances (including the size and administrative resources of the employer's undertaking) the employer acted reasonably or unreasonably in treating it as a sufficient reason for dismissing the employee, and (b) shall be determined in accordance with equity and the substantial merits of the case."
So the question a tribunal asks is not "was there a PIP?" but "did the employer act reasonably?". Having a PIP does not necessarily make the process fair, and not having one does not necessarily make it unfair.
Whether you can bring that question to a tribunal at all depends on the next two sections.
Do you have ordinary unfair dismissal protection?
For dismissals with an effective date before 1 January 2027, ordinary unfair dismissal protection generally requires 2 years' continuous service. If you have less than that, a complaint based only on an unfair capability procedure will usually run into the qualifying-period problem.
From 1 January 2027, the qualifying period falls to 6 months for most employees. Government guidance says employees who already have 6 months' service on that date gain protection immediately; employees with less gain it when they reach 6 months. The date that matters is your effective date of termination, not the date you make a claim.
Short service does not mean no rights. Discrimination claims, many automatically unfair dismissal grounds and contractual rights do not depend on the two-year rule. Yerty's guide to unfair dismissal with less than two years' service explains the main exceptions.
Could a protected reason apply?
The stated reason matters. So does the evidence about what was actually happening.
A performance dismissal can overlap with very different legal issues: a restructure, disability, pregnancy or family leave, whistleblowing, a grievance or discrimination complaint, or asserting another statutory right. Acas lists several automatically unfair dismissal reasons that do not depend on the ordinary qualifying period, including whistleblowing, pregnancy and maternity, certain health and safety activity and asserting statutory rights.
Timing alone does not prove that one of those issues was the real reason. But if the explanation for dismissal appears to change, or performance concerns appear only after a protected event, the chronology may be important.
Disability can also raise separate Equality Act issues. Acas says employers managing a disabled employee's performance should discuss the performance concern, what is expected, what support may help and whether reasonable adjustments are needed.
If whistleblowing may be involved, see Whistleblowing at Work: Your Rights and Protections.
What is your tribunal deadline?
For most Employment Tribunal claims where the event complained of happened on or after 1 October 2026, the time limit is 6 months minus 1 day. For unfair dismissal the clock runs from the effective date of termination.
If your dismissal took effect before 1 October 2026, the previous limit of 3 months minus 1 day still applies to it. The longer period only covers events from 1 October onward. Breach of employment contract claims in Scotland move to the longer period from 9 November 2026.
Before bringing most tribunal claims, you must notify Acas. The early conciliation period is up to 12 weeks and pauses the clock, which affects your final deadline. Yerty's Acas Early Conciliation guide explains that stage.
An internal appeal does not stop the tribunal time limit from running. Employees should normally be offered an opportunity to appeal a formal capability dismissal, and the Acas Code says employers should allow appeals against formal decisions. Your employer's policy will set any internal deadline. Use the appeal if it is available, but do not treat it as a reason to wait on the tribunal deadline.
If you think you may have been unfairly dismissed, see Unfair Dismissal: Rights, Deadlines & Compensation.
Were you warned, and given a real chance to improve?
If you have protection and are inside the deadline, this is where the absence of a PIP starts to matter.
The Acas Code says that where performance is dealt with through a disciplinary or capability process, the basic principles of fairness include establishing the facts, explaining the problem, giving the employee an opportunity to respond and allowing an appeal against a formal decision. For a poor-performance dismissal, these are the questions a tribunal is likely to work through:
| Question | Why it matters |
|---|---|
| Were you told what was wrong? | The performance concern being relied on has to be identifiable. |
| Was the expected standard clear? | A vague instruction to "improve" is difficult to respond to. |
| Was there evidence? | The employer should have a basis for the concern. |
| Were consequences explained? | Formal warnings normally say what may happen if performance does not improve. |
| Were you given a real chance to improve? | A process should not exist only on paper. |
| Was relevant support offered? | Training, supervision, resources or adjustments may matter. |
| Was the employer's own procedure followed? | Departure from the employer's process can be relevant. |
| Were you allowed to respond and appeal? | Fair procedure includes an opportunity to put your case. |
A dismissal can feel especially abrupt where previous reviews were positive or you had never been told your job was at risk. A lack of earlier warning does not by itself decide an unfair dismissal claim, but warning and opportunity to improve are usually central to a fair capability process.
Yerty reviewed 469 published tribunal judgments containing the phrase "performance improvement plan". In 14% of them the judgment expressly recorded that no PIP had been used. The clearest example of why the reality of the improvement opportunity matters is Hoggins v Recruitment Solutions (Services) Ltd. A five-week PIP was agreed in writing, but the employer decided to terminate employment nine days later. The tribunal found the dismissal unfair. Its reasons included ending the agreed improvement opportunity early, as well as problems with investigation, training and support, notice of the dismissal meeting and the lack of an appeal.
Normile v Let's Go Green Cabs Ltd was a constructive unfair dismissal case rather than a conventional capability dismissal. The judgment recorded no formal performance-management policy or appraisal, no formal PIP, no clear targets and no warning about what would happen if performance did not improve, and the tribunal's discussion shows why investigation, warning and a reasonable opportunity to improve matter when poor performance is relied on.
Plaut v Exeter University concerned a conduct dismissal. Even so, on the particular facts the tribunal concluded that a fair route to dismissal would first have required a performance-improvement process and an opportunity for the claimant to change.
None of those judgments creates a universal PIP requirement. They show why the reality of the improvement opportunity can matter more than the label.
If you are still employed and have just been put on a plan, see Performance Improvement Plan (PIP) UK: Your Rights & What to Do.
What did your employer do instead of a PIP?
A dismissal without a formal PIP can still be fair. An employer may be able to show that performance concerns had been raised repeatedly, the required standard was clear, you received feedback or support, warnings were given and there was a fair final decision and appeal. None of those steps has to carry the label "performance improvement plan", and section 98(4) expressly requires the tribunal to take the employer's size and administrative resources into account, so a small employer's process may look less formal than a large organisation's.
It is also common for a PIP to have been discussed but never used. In Yerty's review, 15% of the 469 judgments involved a PIP that was proposed, contemplated or discussed but not clearly implemented. In some a draft existed but another process intervened. In others management or HR considered a PIP before moving to disciplinary action. The fact that an employer considered a PIP does not create a legal right to receive one, but it can be relevant evidence about the options the employer was considering and why it changed course.
The useful questions are what replaced the proposed PIP, what you were told, and whether there was still a meaningful opportunity to respond to the performance concern.
What documents and dates should you check now?
Start with the reason your employer actually gave and work through the sequence rather than focusing only on whether a document called a PIP existed. The things most worth gathering are the dismissal letter and the reason stated in it, your contract and the employer's capability or disciplinary procedure, recent appraisals and feedback, any warnings or meeting notes, any targets you were set and whether they changed, evidence of training or support offered, and any correspondence about adjustments or sickness.
Two dates matter more than the rest: the effective date of termination, because it starts the tribunal clock, and the internal appeal deadline. If a grievance, whistleblowing disclosure, pregnancy or other protected event may be relevant, note where it sits in the chronology.
The aim is not to prove a case from one missing document. It is to understand the whole sequence.
How Yerty can help
If you have already been dismissed or are deciding what to do next, the Yerty Claimant Hub gives you a structured route through a workplace dispute, including a free Workplace Assessment, guided stages and tools for understanding the process.
For the research behind this guide, see Yerty's analysis of 469 tribunal judgments involving performance improvement plans.
Frequently asked questions
Can an employer sack you for poor performance without a PIP?
Potentially, yes. There is no legal requirement to issue a formal document called a PIP. Where ordinary unfair dismissal protection applies, the broader capability process matters, including the evidence of poor performance, warnings, support, opportunity to improve and fairness of the final decision.
How long do you have to bring an unfair dismissal claim?
For dismissals taking effect on or after 1 October 2026, the time limit is 6 months minus 1 day from the effective date of termination. Dismissals before that date keep the previous limit of 3 months minus 1 day. You must notify Acas first, and early conciliation pauses the clock.
Can you claim unfair dismissal with less than two years' service?
For dismissals before 1 January 2027, ordinary unfair dismissal generally still requires two years' service. Some automatically unfair reasons and discrimination claims do not. From 1 January 2027, the ordinary qualifying period falls to six months for most employees, and employees who already have six months' service on that date gain the new protection immediately.
Does an employer have to warn you before dismissal for poor performance?
Warnings are commonly part of a fair capability process. The Acas Code says formal warnings should identify the poor performance, the improvement required, a timescale and the consequences of failing to improve. The exact process depends on the circumstances and any employer capability procedure.
How many warnings should you get for poor performance?
There is no fixed statutory number that applies in every capability case. The Acas Code describes written and final written warnings as the usual approach, while recognising that more serious circumstances may justify moving more quickly. The reasonableness of the process depends on the facts.
Does an employer have to give you time to improve?
In ordinary capability situations, a reasonable opportunity to improve is an important part of fair performance management. What is reasonable depends on the job, the issue and the support required. The Hoggins judgment is a clear example of why the reality of the improvement opportunity can matter.
What if disability affected your performance?
Disability can raise separate Equality Act issues, including reasonable adjustments and discrimination arising from disability. Acas says employers should discuss support and adjustments when managing the performance of a disabled employee. Disability does not prevent capability management, but it can change what the employer needs to consider.
Can you appeal a capability dismissal?
Employees should normally be offered an opportunity to appeal a formal capability dismissal. The Acas Code says employers should allow employees to appeal against formal decisions. Your employer's policy may set an internal deadline, but an appeal does not stop the Employment Tribunal time limit from running.
Sources
- Problems with an employee's performance, Acas, updated 23 June 2026
- Dismissals for capability or conduct, Acas
- Code of Practice on disciplinary and grievance procedures, Acas
- Unfair dismissal, Acas
- Employment tribunal time limits, Acas
- Employment tribunal time limits: changes from 1 October 2026, Business.gov.uk / Department for Business and Trade
- Eligibility to claim unfair dismissal, GOV.UK
- Employment Rights Act 2025, Acas
- Employment Rights Act 1996, section 98, legislation.gov.uk
- Appealing a disciplinary or grievance outcome, Acas
- Unfair dismissal factsheet, Department for Business and Trade
- Mr G Normile v Let's Go Green Cabs Ltd: 2303039/2023, Employment Tribunal
- Dr A Plaut v Exeter University: 1400362/2020 and 1403179/2020, Employment Tribunal
- Mr A Hoggins v Recruitment Solutions (Services) Ltd: 3300172/2017, Employment Tribunal
Yerty's tribunal findings are based on a review of 469 published Employment Tribunal judgments, one per case, containing the phrase "performance improvement plan". The percentages above are shares of that phrase-selected litigation dataset, not of workplace dismissals generally.