You can request annual leave during a disciplinary process, and being under investigation does not suspend your holiday entitlement. But your employer can refuse or cancel that leave if they have a good business reason and give you the correct notice — and an ongoing disciplinary is often accepted as one.
Both sides of this get it wrong. Employees assume a booked holiday is untouchable. Employers assume they can freeze leave for the duration. Neither is right.
Key Takeaways
- A disciplinary process does not remove your statutory entitlement to 5.6 weeks’ paid holiday.
- Employers can refuse or cancel leave, but must give notice equal to the length of the leave requested — Acas.
- Acas is explicit that an employer can refuse or cancel holiday while someone is on suspension.
- An employer cannot refuse all leave — they must ensure you can take your full entitlement within the leave year.
Your Entitlement Does Not Pause
Start here, because it settles most of the anxiety. The Working Time Regulations 1998 give you 5.6 weeks of paid annual leave per leave year regardless of whether you are the subject of a disciplinary investigation, on a final written warning, or awaiting an outcome.
Nothing about a disciplinary process reduces the total, changes the accrual, or extinguishes leave you have already accrued. If you are subsequently dismissed, accrued and untaken leave is still payable on termination.
What a disciplinary can affect is when you take it.
When an Employer Can Refuse Your Request
Acas sets out the default statutory notice mechanism where a contract does not specify its own. An employer can refuse a request or cancel already-approved leave, but two conditions apply.
First, notice. The employer must tell you at least as far in advance as the length of the leave. Cancelling a 10-day holiday requires 10 days’ notice. Cancelling it three days out is non-compliant, whatever the reason.
Second, a good business reason. Acas advises employers to have one. A disciplinary hearing scheduled for the week in question is a reason. “We would prefer you were around” is not.
The strength of the reason usually maps to what is actually happening:
| Situation | Refusal reasonable? |
|---|---|
| Leave clashes with a scheduled hearing or investigation meeting | Yes — clearly |
| Investigation is active and you are a key witness or interviewee | Usually |
| Investigation ongoing but no meetings scheduled in that period | Weak |
| Blanket “no leave until the process concludes” | Very weak, and unlawful if it prevents you taking your entitlement |
That last row is the one employers most often get wrong. Disciplinary processes can run for months. An employer who freezes leave throughout and then finds the employee cannot take 28 days in the remaining weeks of the leave year has created their own compliance problem.
Leave While You Are Suspended
Suspension is a distinct situation, and Acas addresses it directly: an employer can refuse or cancel holiday while someone is suspended, and an employee can take holiday during suspension if the employer agrees.
That framing puts the decision squarely with the employer. In practice, employers often agree — suspension is not a punishment, the employee is being paid anyway, and there is rarely an operational reason to say no if no meetings are scheduled.
Where employers push back is when the leave would delay the process. Suspension is supposed to be as short as possible, and a two-week holiday in the middle of it works against that.
One thing suspension does not change: you remain employed on full pay and your normal contractual terms, and leave continues to accrue.
Should You Book Leave During a Disciplinary?
An honest practical answer, because the legal position only takes you so far.
Reasons to take it: disciplinary processes are stressful and often slow. A break can be the difference between arriving at a hearing composed and arriving at it frayed. If your leave year ends soon and you have a large balance, waiting risks losing days.
Reasons to be careful: unavailability can look like avoidance, particularly if you decline a hearing date and then book leave for the same week. Delay also works against you — most people want a disciplinary resolved quickly, and a two-week absence in the middle extends it.
The workable compromise is to ask for leave in a window with no scheduled meetings, and say so when you ask. “I’d like to take the week of the 14th. I can confirm I’m available for the hearing on the 8th or any date from the 21st” is a request that is difficult to refuse and does not read as evasion.
A Scenario Worth Knowing
An operations coordinator at a 90-person logistics firm was invited to an investigation meeting over a timekeeping allegation. She had a family holiday booked and paid for, falling three weeks later. Her manager’s first instinct was to freeze all leave until the process concluded.
What actually resolved it: the investigation meeting was moved to the following week, the holiday went ahead unchanged, and the disciplinary hearing was scheduled for her return. Total delay to the process: nine days. The alternative — cancelling a paid family holiday — would have cost the employer nothing legally and a great deal in trust, and would have produced a far more hostile hearing.
The lesson for employers is that leave refusal during a disciplinary is a tool with a real cost. Use it when the dates genuinely clash, not as a general posture.
What Employers Should Actually Do
- Check the dates before refusing. If no meeting is scheduled in that window, there is usually no reason to say no.
- Give notice equal to the leave length. Get this wrong and a lawful refusal becomes an unlawful one.
- Never impose a blanket leave freeze for the duration of a process. You must still ensure the employee can take their full entitlement in the leave year.
- Put the reason in writing. A refusal with a stated operational reason is defensible; an unexplained one is not.
- Reschedule the meeting rather than the holiday where you can. It is almost always the cheaper move.
- Keep leave records accurate throughout. If the process ends in dismissal, the accrued balance drives the final payment — and disputed final payments are a common tribunal add-on.
What This Means for You
If you are the employee: request leave in writing, propose dates that avoid scheduled meetings, and confirm your availability for the process in the same message. If leave is refused, ask for the business reason in writing and check the notice period was correct.
If you are the employer: refuse only where the dates conflict, document the reason, and watch the leave-year clock. Our guide to carrying over annual leave in the UK covers what happens when a process runs long enough to squeeze someone’s remaining entitlement, and our UK leave policy and employment law guide sets out how to write the underlying policy.
Leave Balance keeps approvals, refusals, and the reason for each on a single timestamped record per employee — so when a leave decision is questioned six months later, you have the notice dates and the rationale rather than a search through inboxes. Flat $10/month, unlimited employees, 14-day free trial.
This article is general information about UK employment law, not legal advice. Take advice on your own circumstances.
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