Buying and Selling Annual Leave: Employer Guide UK

In brief: Employers can offer schemes that allow employees to buy additional contractual leave or sell additional contractual leave. Selling must not improperly replace statutory annual leave with payment. The employer should define the valuation method, approval rules, contractual treatment and payroll process in advance. Buying leave may involve salary sacrifice, but not every scheme is a salary-sacrifice arrangement.

What buying and selling annual leave means

A holiday buy and sell scheme lets an employee ask to change their contractual annual leave for a defined leave year. Buying leave increases the employee's entitlement and normally creates an agreed reduction in cash pay. Selling leave reduces enhanced contractual entitlement and creates an additional payment.

This is not the same as an ordinary holiday request. A normal request decides when existing entitlement will be taken. A buy or sell election changes the employment package itself, so HR, payroll and the leave record all need to agree.

Use the free calculator to calculate the value of bought or sold annual leave, illustrative payroll instalments and revised entitlement. The calculator intentionally does not estimate net pay.

Can employees sell statutory holiday?

Employers should design selling around additional contractual leave, not statutory leave. Almost all workers are entitled to 5.6 weeks of paid annual leave. For a worker on five days a week this is normally 28 days, and an employer can include bank holidays within that total.

GOV.UK explains that statutory leave can only be replaced by payment when someone leaves their job. Where an employer provides more than 5.6 weeks, separate arrangements can be agreed for the additional contractual amount.

The scheme therefore needs a protected floor calculated for the employee's actual working pattern. Do not hard-code 28 days for everybody: someone working three days a week would ordinarily have a pro-rated statutory entitlement of 16.8 days. The policy must also say whether bank holidays are inside or outside the displayed entitlement.

Before approving a sale, check:

• the employee's statutory and contractual entitlement for that leave year;
• their current working pattern and any part-year or irregular-hours status;
• leave already taken, approved or reserved;
• bank holidays included in the policy;
• any carried-over statutory leave that has separate protection; and
• whether a mid-year starter, leaver or contractual change alters the available amount.

How should one day's holiday be valued?

There is no single valuation formula that automatically fits every contractual scheme. The employer should select a method, document it in advance and apply it consistently.

A common planning formula for a salaried employee is:

Annual salary ÷ 52 ÷ contracted working days per week

For an employee earning £52,000 and working five days a week, that gives £200 per contractual working day. Three days have an illustrative contractual value of £600.

An hourly version can divide annual salary by 52 and contracted weekly hours, then multiply the hourly rate by the hours represented by one leave day. Where the average day is derived from the same weekly pattern, the daily and hourly methods should reconcile. An employer may instead define a daily rate in its scheme, but the basis should be clear before employees elect.

The valuation record should preserve:

• salary and working pattern used;
• effective date of those figures;
• valuation formula and rounding rule;
• number of days and equivalent hours;
• total contractual value;
• instalment count and final rounding adjustment; and
• who approved the calculation.

This value is not necessarily the employee's eventual take-home-pay change. It is the amount handed to payroll under the scheme rules.

Is buying annual leave salary sacrifice?

Not automatically. Some employers operate buying as a genuine salary sacrifice; others use an agreed deduction or a contractual unpaid-leave arrangement. The words used in a form do not decide the legal or tax character. The agreement and what happens to contractual cash entitlement matter.

HMRC's salary sacrifice guidance says a salary sacrifice is an agreement to reduce an employee's entitlement to cash pay, usually for a non-cash benefit. It requires a change to the employment contract, agreed by the employee, and the contract must be clear about cash and non-cash entitlements.

HMRC's optional remuneration guidance also distinguishes arrangements where an employee reduces working hours or becomes entitled to additional unpaid holiday and has pay adjusted accordingly. Employers should confirm the intended structure with their payroll or professional adviser instead of assuming that every holiday purchase has the same PAYE and National Insurance result.

Does buying holiday affect National Minimum Wage?

It can. A genuine salary sacrifice cannot reduce cash earnings below the applicable National Minimum Wage or National Living Wage. HMRC says employers must cap salary sacrifice deductions and maintain the minimum in each relevant pay reference period.

This check cannot safely be made from annual salary alone. Payroll needs the hours that count for minimum-wage purposes, the applicable rate, other reductions or schemes and actual pay in the pay reference period. Low-paid employees, variable hours, unpaid time and multiple salary-sacrifice arrangements need particular care.

Acas guidance on deductions from pay also explains that deductions need a lawful basis, must be shown clearly on the payslip and, in most cases, must not take pay below National Minimum Wage.

A good scheme has a payroll pre-check and makes approval conditional on the minimum-wage test. If the requested amount is too high, the employer should decline it or offer a smaller election rather than allowing payroll to create an underpayment.

Is sold holiday taxable?

Treat the value of sold leave as a payroll decision, not a tax-free reimbursement. It is an additional cash payment connected with employment. The employer's maintained payroll setup should determine PAYE, National Insurance, pensionable pay, student loans and any other relevant calculations, then report the payment correctly.

HMRC's holiday pay PAYE manual states that holiday pay paid by employers is included in gross pay. A specific buy/sell scheme and its documents still need review because a sale of enhanced contractual leave is not necessarily identical to ordinary holiday pay taken or paid on leaving.

The employee-facing estimate should therefore show gross contractual value and state that the net amount depends on payroll. Avoid promising that an employee will receive the displayed value in their bank account.

Should the adjustment happen once or monthly?

A one-off adjustment is easier to operate and reconcile. It creates one approved amount, one payroll period and one payslip line. It can, however, produce a sharp change in that month's pay and make the minimum-wage check more difficult for a buyer.

Monthly instalments smooth the contractual adjustment but introduce more controls:

• rounding must balance exactly in the final instalment;
• every instalment needs a stable link to the approved election;
• payroll must stop after the agreed total;
• changes to pay frequency or payroll calendar need handling;
• unpaid or low-pay periods may affect minimum-wage checks;
• corrections and reopened payroll periods must not duplicate an instalment; and
• leavers need an agreed settlement route.

The policy should state the normal schedule and what happens when the remaining payroll periods cannot collect the planned amount.

What happens when salary changes?

Choose and document a valuation point. Common options include the salary on the election date, the approval date or a named scheme date. Without that rule, a pay rise between election and payroll can create a dispute about the value.

The cleanest operational approach is usually to snapshot the approved rate and leave the total unchanged after approval. A scheme can instead recalculate future instalments, but that creates additional employee communication, payroll adjustments and reconciliation work.

For future-dated salary changes, specify which event takes precedence. Do the same for changes in contracted days or hours, because these can alter both the daily value and statutory entitlement floor.

What happens when someone leaves?

The policy and employee agreement should explain the leaver treatment before any election is accepted. Questions include:

• Are outstanding purchase instalments collected from final pay?
• Is there written authority for a deduction?
• Is bought leave pro-rated or retained in full?
• Has the employee already taken more bought leave than they have paid for?
• Does unsold contractual leave receive payment on termination?
• How is the final statutory entitlement calculated?

GOV.UK's leaving-job guidance explains the statutory payment-in-lieu position. Acas explains holidays and final pay, including that recovery for excess holiday needs prior written agreement or an applicable contractual term.

Do not silently net unrelated values together. Give payroll a clear leave balance, election balance, contractual authority and approved final treatment.

What should a holiday buy and sell policy contain?

At minimum, document:

1. Purpose and scope: who the scheme covers and which leave policy is eligible.
2. Election window: when requests open, close and take effect.
3. Eligibility: service, employment status, absence, notice and disciplinary restrictions, if any.
4. Limits: minimum increments and maximum buy or sell days.
5. Protected entitlement: how the statutory floor and bank holidays are handled.
6. Valuation: formula, salary date, working pattern, rounding and equivalent hours.
7. Approval: manager, HR and payroll responsibilities and operational-capacity considerations.
8. Payroll: salary sacrifice or deduction structure, payment treatment, instalments and payslip description.
9. Changes: salary, working hours, family leave, sickness, unpaid leave and minimum-wage failures.
10. Cancellation: whether an election is binding and the limited circumstances for reversal.
11. Leavers: outstanding instalments, final entitlement and written deduction authority.
12. Records: employee agreement, calculation, approvals, payroll reconciliation and retention.

Use plain language and make the employee actively confirm the terms. If the arrangement changes contractual pay, obtain the required agreement before the change takes effect.

A controlled employer process

A practical workflow is:

1. Publish the policy and election window.
2. Collect the employee's requested direction and days.
3. Calculate the statutory floor and available contractual leave.
4. Value the request using the documented method.
5. Run operational, contractual and minimum-wage checks.
6. Obtain manager, HR and payroll approval.
7. Give the employee the value, schedule and revised entitlement to confirm.
8. Update the leave record and payroll instruction from the same approved source.
9. Reconcile every instalment and the final entitlement.
10. Preserve the election, calculation, consent and payroll evidence.

The leave balance and payroll adjustment should not be maintained as two unrelated manual instructions. Give them a shared reference so a correction or cancellation can be traced across both records.

Related tools and guidance

• Buy or sell annual leave calculator
• Holiday pay calculator
• Understand payroll deductions and net pay
• Holiday pay records compliance tracker
• Final pay when an employee leaves

Sources and review

Reviewed by the Workmax payroll team in August 2026. This is general UK employer information, not legal, tax or employment advice. Scheme wording, contractual terms, employment status, working patterns and individual payroll circumstances can change the correct treatment.

• GOV.UK: holiday entitlement
• GOV.UK: taking holiday before leaving a job
• HMRC: salary sacrifice for employers
• HMRC: optional remuneration arrangements
• Acas: deductions from pay and wages
• Acas: holidays and final pay
• HMRC: PAYE treatment of holiday pay