Holiday Approval Letter UK — Confirm Booked Leave

A holiday approval letter is a written confirmation, usually from a manager or HR, that a specific period of annual leave has been authorised. It is not the request itself and it is not the holiday policy. The request comes from the employee; the policy sits in the contract or staff handbook; the approval letter is the decision, dated and recorded. In practice it names the employee, states the first and last day of leave, counts the working days deducted from the entitlement, and confirms the date the person is expected back at their desk.

People often confuse it with a leave request form, but the direction matters. A request flows upward from the worker and asks for something. An approval flows back down and grants it, which is why the letter carries evidential weight the request never does. If a dispute later lands in front of an employment tribunal, the approval letter is the document that proves the dates were agreed, not assumed. It also differs from a contractual variation : approving a week off changes nothing in the contract, it simply applies the holiday entitlement the contract already grants under the Working Time Regulations 1998. Keeping that distinction clean is what stops a routine summer holiday from being mistaken for a permanent change to terms, and it is the same discipline that underpins a well-drafted UK contract of employment for permanent staff.

Annual leave in Great Britain rests on the Working Time Regulations 1998, which give every worker a statutory minimum of 5.6 weeks' paid holiday per leave year, capped at 28 days for someone working five days a week. The entitlement is pro-rated for part-time staff and accrues from the first day of employment. An approval letter does not create this right, it administers it, which is why the document should reference the leave year and the running balance rather than inventing entitlements of its own. The detail of how holiday is requested and granted usually lives in the contract, and the Employment Rights Act 1996 requires that the principal terms covering holiday be set out in the written statement of particulars given on or before day one.

Notice rules are where employers most often slip. Under regulation 15 of the Working Time Regulations 1998, a worker must give notice of at least twice the length of the leave they want, and an employer who wishes to refuse must serve counter-notice at least as long as the period requested. So a request for five days needs ten days' notice, and a refusal must land at least five days before the holiday would start. Miss that counter-notice window and the leave is taken to be approved by default, which is precisely the silent approval a written letter is meant to prevent. The official guidance on holiday entitlement and notice rules is set out in the UK government's guidance on calculating statutory holiday entitlement, which is the reference point most tribunals expect employers to have followed.

The approval letter also intersects with record-keeping duties. Employers must keep adequate records to show compliance with working time limits, and a paper trail of approved leave is the simplest evidence that holiday was granted and taken. Where leave is carried over, deferred, or paid in lieu on termination, the figures in successive approval letters become the audit trail. None of this needs lawyer-grade drafting, but it does need to be consistent, dated, and kept.

The everyday trigger is a straightforward annual leave request that you have decided to grant. An employee asks for a week in July, you check the rota, you approve it, and you send the letter so the dates are fixed for payroll and the team calendar. That single confirmation is what stops the "I'm sure I booked that off" conversation in October. The second common scenario is a request that touches a busy period or overlaps with a colleague's booking, where you approve it but want the conditions in writing : approved on the basis that handover notes are completed, or approved subject to a return-to-work date that cannot move.

A third situation is the long or unusual absence. Someone wants three consecutive weeks, or wants to carry days into the next leave year, or is combining annual leave with a period of unpaid or family-related leave. Here the letter does real work, because it pins down what was actually agreed when the arrangement is more complex than a single tick on a form. Sabbaticals and study leave fall into the same bracket and benefit from the same clarity.

Two edge cases are worth flagging. The first is the employee approaching the end of their notice period who wants to use up accrued holiday before leaving; the approval letter then ties directly into the final pay calculation and should align with the redundancy or dismissal paperwork where relevant. The second is shutdown leave, where the business closes for a week and requires staff to take holiday. Even though the employer is directing the leave rather than responding to a request, a confirmation letter remains the cleanest way to record that the days were allocated and counted.

• The identification of the parties and the leave year opens the letter, naming the employee, the manager or HR signatory, and the leave year the holiday is drawn from. This anchors the deduction to the correct twelve-month period, which matters when a request straddles a year-end or when carry-over is in play.
• The approved dates and working-day count form the operative core. The template states the first and last calendar day of the absence and, separately, the number of working days deducted, because a fortnight that includes a bank holiday does not consume the same entitlement as a fortnight that does not. Spelling both out removes the most common source of payroll disagreement.
• The return-to-work date is stated expressly rather than left to be inferred. A clear "expected back on Monday" line prevents the awkward situation where an employee reads the end date as their first day back and the manager reads it as their last day off.
• The remaining entitlement balance records how many days are left after this booking. Carrying a running figure in each letter turns a stack of approvals into a self-checking ledger, which is invaluable on termination when accrued-but-untaken leave must be paid out.
• The conditions and handover note captures anything the approval depends on, such as completed handover documentation or a commitment not to extend the dates. Keeping conditions on the approval, not buried in an email thread, is what makes them enforceable in practice.

Holiday law in the United Kingdom is largely uniform, but the document should reflect the right legal backdrop depending on where your staff are employed.

England and Wales share the same framework under the Working Time Regulations 1998 and the Employment Rights Act 1996, and this is the baseline our template is built around. The eight permanent bank holidays in England and Wales are not a separate statutory right; whether they count towards the 5.6-week entitlement or sit on top of it depends entirely on the contract. An approval letter should therefore make clear whether bank holidays inside the requested period are being deducted or not, because silence on this point is a frequent cause of friction. Employers here also rely on the same notice and counter-notice mechanism in regulation 15 when managing competing requests.

Scotland applies the same Working Time Regulations and the same 5.6-week minimum, since employment law is reserved to Westminster rather than devolved. The practical difference is the public holidays : Scotland observes a different mix, including dates such as 2 January and local trades holidays, so a letter approving leave around those dates should be drafted against the Scottish calendar rather than the English one. The substance of the approval is identical, only the surrounding holiday pattern shifts.

Northern Ireland runs on its own statute, the Working Time Regulations (Northern Ireland) 2016, which mirrors the Great Britain entitlement of 5.6 weeks but is a distinct legal instrument. Northern Ireland also has additional public holidays, notably St Patrick's Day and the Twelfth of July, that affect how working days are counted. An employer with staff across the Irish Sea should adapt the statutory reference accordingly, while the operative content of the approval, dates, day-count, and balance, stays the same throughout.

You start by entering the employer details and the name of the employee whose leave you are confirming, then select the leave year the booking is drawn from so the balance reads correctly. From there the form asks for the first and last day of the absence and works out the number of working days involved, prompting you to confirm whether any bank holidays inside the period should be deducted. That single prompt resolves the issue that causes most payroll queries later.

The template then invites you to state the expected return date and the remaining entitlement after the booking, which together turn the letter into a usable record rather than a one-line note. If the approval carries conditions, such as a handover requirement or a fixed return, you add them in the conditions field so they travel with the decision. You finish by choosing your output format and downloading the letter in editable Word for internal sign-off or as a clean PDF for the employee's file. The same flow can be reused for other UK employment documents without re-entering the company details each time.

The most frequent error is approving leave verbally and never confirming it in writing, which leaves both sides relying on memory when the dates clash with a deadline or another booking. Closely related is the failure to count working days correctly : managers approve "two weeks" without specifying whether a bank holiday inside that fortnight comes off the entitlement, and the discrepancy surfaces only when the final-pay figure is wrong. A third trap is leaving the return date ambiguous, so the employee and the rota disagree about which morning they are actually due back.

Employers also stumble on the notice mechanism. Refusing a request informally, or refusing it too late, can mean the counter-notice required under regulation 15 of the Working Time Regulations 1998 was never validly served, and the leave is then treated as granted by default. If you intend to refuse or move dates, do it in writing and within the statutory window, not in a corridor the day before. The last common mistake is over-reaching on information : asking for detailed reasons for ordinary annual leave is unnecessary and can sour the relationship, whereas a parental or dependants leave request genuinely does need supporting detail. Match the level of enquiry to the type of leave, and keep ordinary holiday approvals light.