Yes, you can refuse a holiday request in the UK, as long as you give the correct notice and have a genuine business reason for saying no. Get either part wrong and a routine staffing decision can turn into a grievance, or even a tribunal claim.
This bites hardest in summer, when half the team wants the same fortnight in August and someone has to miss out. Below you'll find when you can say no, how much notice you have to give, and how to choose between competing holiday requests without anyone feeling hard done by. There's a free policy template at the end.
When can you refuse a holiday request?
There are only a few reasons that hold up, and they all come back to coverage or entitlement.
Not enough notice given
If an employee asks for time off at the last minute, you can turn it down. Under the Working Time Regulations 1998, a worker should give notice of at least twice the length of the leave they want to take, unless the contract says otherwise. A request that lands too late for you to arrange cover is a fair reason to refuse.
The business can't spare the cover
Peak periods are a legitimate reason to refuse leave. Retailers in the run-up to Christmas, hospitality through the summer holiday season, or any team facing a known crunch can reasonably keep people on the schedule. What matters is that the reason is real and tied to business needs, not personal preference.
Too many overlapping requests
When several people want the same dates, you often can't approve them all without leaving yourself short staffed. This is the classic competing holiday requests problem, and it's normal to approve some and refuse others. How you decide is what matters, and we'll get to that below.
Not enough holiday entitlement left
If an employee has already used most of their annual leave, you can refuse a request that would take them over their entitlement. Workers get 5.6 weeks of statutory leave per leave year (28 days for someone working a five-day week), and once that's gone, further paid time off is at your discretion. Always check the balance before you respond.
How much notice must you give to refuse?
The law cares more about timing than about your reason, which is where most employers slip up.
The rule is simple. To refuse a request, you have to give counter-notice at least as long as the holiday the employee asked for. ACAS confirms you must tell the worker by at least the same amount of time as the leave they requested. So if someone asks for five days off, you have at least five days before the leave starts to say no.
| Leave requested | Minimum notice to refuse |
|---|---|
| 1 day | 1 day before it starts |
| 3 days | 3 days before it starts |
| 5 days | 5 days before it starts |
| 10 days | 10 days before it starts |
Many advisers suggest adding a day as a safety margin, so a five-day request gets six days' counter-notice. A contract or workplace agreement can set different notice, so check your own policy first. Miss the window and a refusal you were fully entitled to make can become unlawful.
Three fair ways to decide between competing holiday requests
When several people want the same dates, your method matters as much as the decision itself.
| Method | How it works | Watch out for |
|---|---|---|
| First come, first served | Approve requests in the order they arrive | Disadvantages people who plan late or have school holidays to work around |
| Rota-based | Rotate priority for popular dates year to year | Needs a record of who got priority last time |
| Seniority | Longer-serving staff get first pick | Can feel unfair to newer staff and may raise age discrimination questions |
First come, first served is the easiest to run and the easiest to defend, because the rule is objective and everyone can see it. A rota-based approach works well for dates everyone wants, like Christmas or the summer peak, because priority moves around each year. Basing it purely on seniority is tempting, but if it consistently favours older, longer-serving staff, it can raise indirect age discrimination questions under the Equality Act 2010, so use it carefully.
Whichever you pick, write it down and apply it the same way every time. A method people can see in advance is far easier to defend than a decision that looks like it was made on the spot.
Staying legal: consistency, notice and the 2026 record-keeping duty
Three things keep a refusal defensible if it's ever challenged.
Apply your policy consistently
If you refuse one person's request, make sure you'd treat anyone else in the same position the same way. Inconsistent decisions are where claims of favouritism or unfair treatment start. Consistency protects both your team's trust and your business under the Equality Act 2010.
Give proper notice, in writing
Put the refusal in writing, with the reason and the date you sent it. That shows you gave the correct counter-notice and had a genuine business reason. A quick verbal no leaves you with nothing to point to if the decision is questioned later.
New for 2026: keep records of leave
From 6 April 2026, the Employment Rights Act 2025 requires UK employers to keep adequate records of annual leave and holiday pay, and to hold them for six years. Failure is a criminal offence, enforceable by the new Fair Work Agency, as ACAS sets out. A clear, timestamped record of every request, decision and reason is now a legal requirement rather than good housekeeping.
How to say no without losing the employee
How you deliver a refusal decides whether you keep the goodwill.
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Explain the business reason: Tell the employee why you're saying no, whether it's a peak period, overlapping requests, or thin cover. People accept a refusal far more readily when they can see it's based on a real business reason rather than a snap call.
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Offer alternative dates: A refusal lands better when it comes with options. Suggest alternative dates that work for both sides, or a shift swap that keeps cover in place. It shows you're trying to make their time off work, simply not on those exact dates.
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Confirm it in writing: Follow the conversation up with a short written note of the decision and the reason. It keeps everyone clear and gives you the record you now have to keep anyway.
What a fair holiday request policy should include
Most of the disputes you're trying to avoid start with not having a written policy everyone has seen.
A solid holiday request policy covers:
- How employees request leave, and how much notice they need to give
- The notice you'll give if you have to refuse or cancel
- Which method you use for competing requests (first come, rota, or seniority)
- Any peak or restricted periods when leave is limited
- How decisions are made and communicated
- How leave is recorded, now a legal requirement
A written policy does two jobs: it sets expectations so fewer clashes happen, and it gives you something to point to when they do. You can download our free UK holiday request and refusal policy template to start from.
Handle holiday requests the easy way with Shiftbase
Competing holiday requests are far less stressful when everything sits in one place. With Shiftbase, employees submit leave through the app, you approve or refuse with one tap, and balances update automatically against each person's entitlement. Approved leave shows straight in your employee scheduling view, so you can see who's already off before you decide, and time tracking keeps hours and holiday pay accurate for payroll. You can try Shiftbase free for 14 days, or check the pricing page for plan details.
- Automatic accrual of vacation hours
- Request leave easily
- Leave registrations visible in the planning
