A fair disciplinary procedure protects both employer and employee by following a clear, consistent process rather than an abrupt, one-sided decision. This guide explains what a fair procedure should generally look like in 2026/27, based on the Acas Code of Practice.
Investigation and Written Notice
A fair process usually starts with an investigation to establish the facts, which may involve a separate investigating manager gathering evidence and statements, before a decision is made about whether there is a case to answer at a formal disciplinary hearing.
If a hearing is to go ahead, the employee should be given written notice setting out the allegation, the evidence gathered, and reasonable time to prepare a response, rather than being confronted with a hearing and detailed evidence for the first time on the day.
The Disciplinary Hearing
At the hearing, the employee should be given a genuine opportunity to respond to the allegations, present their own evidence or witnesses, and ask questions, rather than the meeting being a formality where the outcome has already been decided in advance.
Employees generally have a statutory right to be accompanied at a disciplinary hearing by a work colleague or a trade union representative, and this request should not unreasonably be refused by the employer.
Outcomes and the Right to Appeal
Possible outcomes range from no action, through informal or formal warnings of increasing severity, to dismissal in more serious cases, and the outcome should be proportionate to the nature of the conduct or performance issue found, with the employee told the decision and reasons in writing.
A fair process generally offers the right to appeal the outcome to someone more senior, or otherwise not previously involved in the original decision, giving the employee a genuine opportunity to have the decision reviewed rather than treating the original outcome as automatically final.
Frequently Asked Questions
Do I have the right to bring someone to a disciplinary hearing?
Yes, you generally have a statutory right to be accompanied by a work colleague or a trade union representative at a formal disciplinary hearing, and an employer should not unreasonably refuse a request to be accompanied by someone from one of these categories.
What is the Acas Code of Practice and why does it matter?
It sets out the standards for a fair disciplinary and grievance procedure that employers are expected to follow, and although it is not itself a strict legal requirement in every clause, an Employment Tribunal can adjust compensation if an employer unreasonably fails to follow it in a dismissal case.
Can I be dismissed without any warnings first?
In cases of gross misconduct, dismissal without prior warnings can be fair, but for most ordinary performance or conduct issues, a fair process generally involves escalating warnings before dismissal is considered, unless the conduct is serious enough to justify skipping straight to dismissal.
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What should I do if I think my disciplinary process was unfair?
Raise your concerns through the appeal stage of the process first, explaining specifically why you believe it was unfair, and if that does not resolve the issue and you meet the qualifying service (where relevant), you may be able to bring an Employment Tribunal claim.
Does every disciplinary case need a full investigation?
The depth of investigation should be proportionate to the seriousness of the allegation — a minor issue may need only a brief check of the facts, while a serious allegation, particularly one that could lead to dismissal, generally warrants a more thorough and careful investigation.
Can I appeal a disciplinary outcome even if I do not have two years’ service?
Yes, the right to appeal under a fair procedure is generally not dependent on having two years’ service — that threshold relates mainly to ordinary unfair dismissal claims at tribunal, not to whether your employer’s own internal process should offer you an appeal stage.
Can I be suspended while a disciplinary investigation takes place?
An employer can suspend an employee during an investigation into a serious allegation, but this should be a neutral act rather than a punishment, should be kept as brief as reasonably possible, and is normally on full pay unless the contract says otherwise.
How long should a disciplinary process take from start to finish?
There is no fixed legal timescale, but the Acas Code expects each stage to be dealt with without unreasonable delay, and a process that drags on for months without good reason could itself be seen as unfair.
What is the difference between a disciplinary and a performance improvement process?
A disciplinary process typically deals with alleged misconduct or a serious breach of standards, while a performance improvement process usually addresses capability or underperformance in a supportive, target-setting way, though employers sometimes move from one route to the other if issues are not resolved.
Do disciplinary warnings expire?
Many employers set a policy under which formal warnings automatically expire after a set period, commonly around six to twelve months, after which they should not normally be relied on to justify further disciplinary action, though the employer’s own written policy should be checked for its specific timescale.
Disclaimer: This guide reflects UK rules as they generally apply in 2026/27. This guide is for general information only and is not professional advice. Consult a qualified adviser and refer to gov.uk for current official guidance before relying on any treatment.
