Performance improvement plans (PIPs) at work: what your rights actually are

A performance improvement planA structured process an employer uses to address concerns about an employee's performance, setting targets and a timescale to meet them before deciding whether to take further action, including dismis..., usually shortened to PIPA structured process an employer uses to address concerns about an employee's performance, setting targets and a timescale to meet them before deciding whether to take further action, including dismis..., is what your employer uses when they say your work isn’t meeting the standard required. It sets out specific targets, a timescale to hit them, and some kind of review process at the end. Being put on one doesn’t automatically mean you’re about to lose your job, though it’s still worth taking seriously. Most employees don’t know the rules that are supposed to govern how a PIP is run, and that gap is where problems start.

What a performance improvement plan actually is

A PIP can be informal (a conversation and some written notes) or formal (a structured process with set review dates, usually following a written warningA formal sanction issued after a disciplinary process, recorded on your file for a set period. It is not a dismissal, but it can be used as a prior warning if a further disciplinary matter arises duri...). The formal version is the one that carries real risk, since a failed formal PIP is often the direct route to a dismissal for capabilityOne of the potentially fair reasons an employer can use to dismiss someone, covering situations where you are unable to do your job to the required standard, including through ill health. A fair capab... rather than misconduct.

There’s no single legal definition of a PIP in UK employment law. It’s a management tool, not a statutory process, which is exactly why practice varies so much between employers, and why so many PIPsA structured process an employer uses to address concerns about an employee's performance, setting targets and a timescale to meet them before deciding whether to take further action, including dismis... go wrong.

How a PIP usually starts

Most PIPs follow the same rough path. A manager raises a concern informally, sometimes just once, sometimes over several conversations. If nothing changes, or the employer decides the issue is serious enough to skip straight to something formal, you’ll usually get a letter or a meeting invite setting out that you’re being placed on a PIP, along with the specific targets and review dates.

That letter matters more than people expect. A proper one names the specific problem, states what meeting the standard actually looks like, sets out the timescale and review dates, and explains what support you’ll get along the way. If the letter you’ve been given is vague, skips specific examples, or reads more like a general warning than an actual plan, that’s worth raising before the process goes any further.

What a specific target actually looks like

The difference between a fair PIP and an unfair one often comes down to how the targets are written. “Improve your attention to detail” isn’t something you can meet or fail, because nobody, including your manager, can point to a clear line between success and failure. “Reduce data entry errors to fewer than two per week, reviewed every Friday” is something you can meet, contest, or track, because it says exactly what’s being measured and how often.

If your PIP reads more like the first example than the second, ask your manager, in writing, to clarify what meeting the standard would actually look like by the end of the review period. A target too vague to measure is also a target too vague for a tribunal to accept as a fair basis for dismissal later.

This isn’t just a communication issue. In Your employer must show the standard was genuinely unacceptable, not just imperfect (Alidair Ltd v Taylor, Court of Appeal), a capability dismissal was upheld specifically because the standard the employee had failed to meet was concrete and serious, not vague or subjective. The lesson runs both ways. A genuinely serious, specific failure can support a fair dismissal. A standard nobody can pin down usually can’t.

What a written PIP typically includes

There’s no legally required format, but a properly documented PIP usually covers the same ground regardless of employer. The specific performance concern, described with examples rather than generalities. The standard you’re expected to reach, ideally with a way to measure it. The timescale, including the date of the first and final review. What support you’ll get, whether that’s training, mentoring, adjusted workload, or more frequent check-ins. Who you can contact with questions, and what happens at the end depending on whether the targets are met.

If your PIP letter is missing several of these, that’s not just sloppy paperwork. A tribunal weighing whether a later dismissal was fair will often look at whether you were given enough information to actually succeed, and a thin, vague document makes that harder for your employer to demonstrate. Ask for the gaps to be filled in writing rather than assuming they don’t matter.

Who decides you need a PIP, and what if it looks like a pretext

Usually your direct manager raises the concern, often with HR involved in reviewing the paperwork or sitting in on meetings, particularly once the process becomes formal. In smaller organisations without dedicated HR, the manager may run the whole thing alone, which raises its own fairness questions if there’s no independent check on their judgement.

Most PIPs are exactly what they appear to be: a genuine attempt to address a real performance problem. But a minority are something else, a way of building a paper trail to justify a dismissal decided in advance, or of pushing someone out without the cost of redundancyA dismissal that occurs when your employer no longer needs the work you do, either because the business is closing, a workplace is closing, or the requirement for employees to carry out that kind of w... pay. A few patterns are worth watching for. The PIP appears shortly after you raised a grievanceA formal complaint raised by an employee against their employer, triggering a legal obligation to investigate and respond., complained about something, or disclosed a health condition. The targets are set at a level nobody in the team consistently meets. Feedback during the process is inconsistent or missing entirely, so problems are held back and delivered all at once at the final review. Or the process moves faster than the letter said it would, with meetings brought forward or cancelled without explanation.

None of these prove a pretext on their own, and employers are entitled to manage performance even when the timing looks awkward. But if several line up together, it’s worth keeping a clear written record from the start and getting advice early, rather than after a dismissal has already happened.

Your rights during a PIP

You don’t have a free-standing legal right to a PIP itself, but several rights apply once you’re on one:

You’re entitled to know, clearly, what the problem actually is. Vague criticism (“you need to improve”) isn’t enough for a PIP to do its job or for a later dismissal based on it to be fair. You should be told the specific standard you’re not meeting and given a real chance to meet it.

You can normally be accompanied at any formal review meeting, by a colleague or a trade union representative, in the same way as a disciplinary hearingA formal meeting at which your employer sets out the allegation against you and gives you the opportunity to respond before any decision is made. You have the right to be accompanied by a colleague or....

The timescale has to be realistic. There’s no fixed legal minimum, but a PIP set at four weeks for a problem that would reasonably take three monthsThe standard time limit for bringing most employment tribunal claims, running from the date of the act complained of. Because the limit is three months less one day, you should not wait until what fee... to fix is going to be hard for an employer to defend later.

If you disagree with the PIP itself, or with how it’s being assessed, you can usually raise this as a grievance while the PIP is still running, rather than waiting until after a dismissal to challenge it.

Getting ready for a PIP review meeting

A few things help going into any formal PIP meeting. Keep your own written log of what you’ve done against each target, with dates, rather than relying on your manager’s version of events being complete. If training or support was promised, note whether it was actually delivered, and when.

Bring your companion if you’re entitled to one, and ask in advance what will be discussed, so a new allegation doesn’t land on you for the first time in the room. If English isn’t your first language, or a condition makes verbal meetings harder to process, ask for written questions in advance or a written summary afterwards. That’s a reasonable request regardless, and where a disability is involved, your employer may be legally required to accommodate it.

What makes a PIP fair, and what makes it a warning sign

A properly run PIP has targets you can actually measure, and a timescale that’s genuinely realistic, with regular check-ins along the way rather than one meeting at the end. Real support matters too, whether that’s training, closer supervision, or an adjusted workload, whatever’s relevant to the actual problem.

Some signs point the other way. A PIP with targets that shift partway through. One set at a level no reasonable employee could hit in the time given. One where feedback during the process is vague or non-existent, so you only find out you’re failing at the final meeting. Or one that arrives suddenly, with no prior informal conversation about performance at all, especially if it follows shortly after you’ve raised a grievance, requested flexible working, or disclosed a health condition. No single sign makes a PIP automatically unlawful, but together they’re the pattern tribunals look for when deciding whether a subsequent dismissal was genuinely about performance.

If a disability, health condition, or being neurodivergent is behind your PIP

This is the part most PIP guidance skips past in a sentence, and it matters more than most.

The Equality Act 2010The main piece of legislation protecting employees from discrimination at work. It covers nine protected characteristics including age, disability, sex, race, and religion, and makes it unlawful for a... covers many long-term mental health conditions, along with ADHD, autism, and dyslexia, wherever they have a substantial, long-term effect on someone’s ability to do normal daily activities. When your performance issues are connected to a condition like that, your employer has to consider reasonable adjustmentsChanges an employer must make under the Equality Act 2010 for a disabled employee, where without them the employee would be at a substantial disadvantage compared to non-disabled colleagues. What coun... before running a standard PIP process at all. Running an unadjusted PIP against someone whose difficulties stem from a disability the employer knew or should have known about can amount to discrimination arising from a disability, not just an unfair process.

In practice, this can mean adjusted targets, more time, a quieter workspace, adjusted supervision style, or written instructions instead of verbal ones, depending on what’s actually needed. What it should never mean is a PIP that treats a disability-related difficulty as if it were a straightforward performance failure and pushes ahead regardless.

Two established cases set out how this works in practice. In If your employer did not know about your disability, they may not be required to make adjustments. But what counts as knowledge is not always straightforward (Eastern and Coastal Kent PCT v Grey, EATStands for Employment Appeal Tribunal. It hears appeals from employment tribunal decisions on points of law, not on the facts. It is not a way of simply asking for a second opinion on the outcome.), the tribunal confirmed the duty is triggered once an employer knew, or reasonably should have known, about the disability, not only once it’s been formally confirmed. And in Your employer has to understand your situation properly before deciding on adjustments (Mid Staffordshire General Hospitals NHS Trust v Cambridge, EAT), the duty to adjust was found to include a duty to properly assess what an employee actually needs, rather than guessing or doing nothing.

If you’re neurodivergent and have masked your difficulties at work, including not having formally disclosed anything to your employer, this gets more complicated but doesn’t remove your protection outright. The duty to make adjustments can still apply once your employer has enough information to reasonably have worked out what’s going on, even without a formal diagnosis being shared. If you’re in this position, disclosing earlier rather than later, even just to HR rather than your manager, generally puts you in a stronger position than waiting until the PIP has already concluded.

If you’re on sick leave, or a health condition is affecting your attendance or capacity rather than the quality of your work, a PIP is often the wrong tool entirely. That situation is usually about capability and occupational healthAn independent medical service that employers use to assess how a health condition is affecting your ability to work. A referral to occupational health is not a step toward dismissal, but the report p... input, not a standard performance process.

Timing matters here too. In Raising performance concerns while you’re off sick can break your employer’s duty of trust (Private Medicine Intermediaries Ltd and others v Hodkinson and others, EAT), an employer that wrote to an employee raising performance concerns while she was off sick with work-related stressPhysical or mental harm caused by pressure at work, such as an unmanageable workload or a lack of support. It is not a diagnosis on its own, but it can lead to conditions like anxiety or depression th... was found to have damaged the trust and confidence at the heart of the employment relationship. Raising performance issues while someone is signed off is rarely a neutral act.

Should you sign it?

Signing usually just confirms you’ve received and understood the document, and agreement with what’s in it is a separate question entirely. Refusing to sign anything at all can look uncooperative and won’t stop the process running regardless. A better approach is usually to sign to confirm receipt while adding, in writing, that you don’t agree with specific parts of it and why, so there’s a clear record of your objection from the start rather than one you’re trying to reconstruct later.

What happens if you fail a PIP

A failed formal PIP commonly leads to a capability dismissal. If your employer has followed a fair process, given you a genuine chance to improve, and dismissal is a reasonable response given how things went, that dismissal can be lawful even though it doesn’t feel fair to you personally.

Clear warning matters specifically here. Since Your employer must warn you clearly before dismissing you for poor performance (James v Waltham Holy Cross UDC), tribunals have treated a clear prior warning of the consequences of continued poor performance as a basic building block of a fair capability dismissal, not an optional extra.

But “followed a fair process” is doing a lot of work in that sentence. If the targets were unreasonable, the timescale too short, the support promised never materialised, or a disability wasn’t properly accounted for, the dismissal itself becomes vulnerable to a challenge, whether that’s an unfair dismissalA legal claim you can bring if your employer dismissed you without a fair reason or without following a fair process. You normally need two years of continuous employment to qualify, though some dismi... claim, a discrimination claim, or both.

If a tribunal finds the dismissal unfair, compensation usually comes in two parts. A basic awardA fixed element of an unfair dismissal award, calculated by reference to your age, length of service, and weekly pay. Unlike the compensatory award, it is less affected by Polkey reductions. is calculated from your age, length of service, and pay. A compensatory awardThe main part of an unfair dismissal award, calculated to cover your actual financial loss. It is not automatic and can be reduced, including to nil, if the tribunal concludes you would have been dism... covers your actual financial losses, mainly lost earnings while you look for new work. Tribunals can reduce either award for your own contributory conductContributory conduct is blameworthy behaviour by you that a tribunal finds actually contributed to your own dismissal. It can reduce your compensation even where the dismissal itself was unfair, and u..., or add up to 25% to the compensatory award if your employer ignored the ACAS Code of PracticeOfficial guidance issued by ACAS on how disciplinary and grievance procedures should be run. It is not law, but tribunals take it into account, and a failure to follow it can result in any award being... on Disciplinary and Grievance Procedures, which a rushed or badly documented PIP very often does.

Alternatives to going through the full process

Employers sometimes offer a settlement agreementA legally binding contract between you and your employer that settles any claims you might have in return for an agreed payment. You must take independent legal advice before signing one, and your emp... partway through a PIP, effectively paying you to leave rather than completing the process. There’s no obligation to accept one, and the number offered is a starting point for negotiation, not a final figure. Get advice before signing anything, since a settlement agreement is only legally binding once you’ve had independent legal advice on it, which your employer normally has to contribute towards the cost of.

Resigning is always an option, but it usually gives up any claim connected to how the PIP itself was handled. If the way you’ve been treated has been serious enough, you may have grounds for constructive dismissalWhen your employer's behaviour is so serious that you feel you have no choice but to resign, the law may treat that resignation as a dismissal. The most common basis is a fundamental breach of the imp... instead, which is a different route with its own risks and evidence requirements.

Where this fits in the wider process

A PIP that turns into a dismissal is a capability dismissal, which sits alongside The complete guide to facing a disciplinary at work rather than replacing it entirely, since many employers blur the two processes in practice. If a disability or health condition is genuinely behind the performance concerns, The duty to make reasonable adjustments and Discrimination arising from disability cover the legal tests in full. If you’re neurodivergent, If you’re neurodivergent, here’s what the law actually protects at work covers the wider picture beyond just PIPs.