What Is TOIL? Time Off in Lieu Explained

Trefnus
3 days ago
7 min read

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Published: 21 June 2026 | Last reviewed: 21 June 2026

Few HR terms cause as much confusion among UK small business managers as TOIL. Short for time off in lieu, it lets employees take paid time off instead of being paid extra for working beyond their contracted hours. Time off in lieu in the UK is not governed by its own legislation, so what employees are entitled to depends almost entirely on company policy.

Used well, TOIL can ease overtime costs and reward staff for pulling extra weight during busy periods. Used loosely, it becomes a source of disputes, untracked liabilities, and compliance risk. This guide explains what TOIL is, how it works in practice, and what a fair, compliant TOIL policy should include.

What Is TOIL (Time Off in Lieu)?

Time off in lieu is paid leave granted to an employee in recognition of hours worked beyond their normal contracted hours, in place of receiving overtime pay. Rather than receiving a higher payslip the following month, the employee “banks” the extra hours and takes equivalent time off at a later date, usually with the employer’s agreement on timing.

TOIL is most common in organisations where workload fluctuates, such as project-based businesses, retail during seasonal peaks, or teams managing one-off deadlines. It is also frequently used as a day in lieu when an employee works on a bank holiday that would otherwise have been a day off.

Is TOIL a Legal Requirement in the UK?

No. TOIL is not a statutory entitlement under UK employment law. Employers are generally free to decide whether overtime is compensated through overtime pay, TOIL, both, or neither, provided employees’ average pay does not fall below the National Minimum Wage and other employment law obligations, such as the Working Time Regulations, continue to be met.

Because TOIL has no statutory framework of its own, it operates entirely as a contractual arrangement, which means the protections employees get depend entirely on what the employer has written into the contract or staff handbook.

That does not mean TOIL sits outside the law altogether.

Two areas of legislation apply regardless of what a TOIL policy says:

National Minimum Wage. Average pay across the relevant pay reference period must not fall below the NMW once additional unpaid hours are factored in, even where TOIL is offered in place of payment.
Working Time Regulations 1998. Employees must not be required to work in excess of the 48 hour average weekly limit (unless they have signed an opt out), and minimum daily and weekly rest periods still apply, irrespective of any TOIL arrangement.

How Does TOIL Work in Practice?

There is no fixed formula, but most UK employers follow a similar pattern:

Overtime is pre-approved by a manager before it is worked, rather than logged retrospectively.
Hours are recorded accurately, usually via a timesheet, rota system, or HR software.
Hours convert to TOIL, most commonly on a 1:1 basis, though some employers offer enhanced accrual (for example, time and a half for weekend work).
The employee requests to take the accrued time, subject to the same approval process as annual leave.

For example, an employee contracted for 37.5 hours who works 5 extra hours to hit a project deadline would, on a standard 1:1 basis, accrue 5 hours of TOIL to use later, at full pay, with no change to their normal salary.

TOIL vs Overtime Pay at a Glance

	TOIL	Overtime pay
How it compensates extra hours	Paid time off taken later	Extra money in the next payslip
Effect on payroll costs	No additional payroll cost	Increases payroll cost, often at an enhanced rate
Statutory requirement?	Not a legal requirement	Not a legal requirement (subject to NMW)
Best suited to	Project-based or seasonal peaks	Predictable, regular overtime
Main administrative risk	Balances expiring or growing unchecked	Payroll errors at enhanced rates

Setting Up a Fair TOIL Policy

Because TOIL is not regulated by statute, a clear written policy is what stands between a system that staff trust and one that generates disputes. A reasonable TOIL policy typically addresses the following.

Eligibility and Approval

State which roles are eligible for TOIL entitlement (some employers exclude senior or salaried staff who are not paid for overtime) and confirm that extra hours must be agreed with a manager in advance, rather than accrued informally.

Accrual Rate and Caps

Decide whether TOIL accrues at plain time or an enhanced rate, and set a maximum balance an employee can hold at any one time. Without a cap, large balances can build up unnoticed and become difficult to clear without disrupting cover.

Expiry Period

Most policies require TOIL to be used within a set window, typically three to six months, to prevent indefinite carry-over. Whatever the period, it should be stated clearly and applied consistently across the team.

What Happens When Employment Ends

Decide in advance whether unused TOIL is paid out on termination or forfeited if not taken, and say so explicitly in the contract. Note that this is separate from statutory annual leave, which must always be paid out on termination if accrued and unused. The contract and the TOIL policy should be consistent on this point, as ambiguity between the two is a common source of dispute during offboarding.

TOIL for Part-Time Employees

TOIL applies equally to part-time employees, but it needs particular care. Employers should state clearly whether TOIL accrues once an employee exceeds their own contracted hours, or only once they exceed the normal full-time hours for the role, and apply that rule consistently across the team.

Treating part-time staff less favourably than comparable full-time colleagues in how TOIL is calculated or approved can also raise a risk of a claim under part-time worker protections, so consistency matters as much as clarity.

Common TOIL Pitfalls for SMEs

Treating TOIL as informal goodwill rather than a documented arrangement, leaving no clear record of what is owed.
Allowing balances to grow unchecked, creating a liability that is hard to clear without leaving shifts uncovered.
Inconsistent application between employees or teams, which can raise fairness and discrimination concerns.
Losing track of the 48 hour weekly working time limit because extra hours are being “paid back” in time rather than money.
Blurring TOIL with statutory annual leave, which must be tracked and paid out separately.

Trefnus Staff leave tracking dashboard with blue team calendar, staff schedule grid, and text Staff leave management made simple.

Keeping TOIL Records Straight

Spreadsheets tend to fall behind once a few employees are banking and using hours at different rates. Trefnus Staff keeps TOIL balances visible alongside holiday and sickness records, so managers can see at a glance who has hours owed, when they expire, and whether cover is in place before approving a request.

Find out more about Trefnus Staff:

Trefnus Staff | Subscription-Free Staff Leave Management App

TOIL and Annual Leave: Keeping the Pots Separate

TOIL and statutory annual leave are two entirely separate entitlements and should never be merged in a tracking system or a conversation with staff. Statutory leave exists regardless of overtime worked and must be paid out on termination if unused. TOIL exists only because of a contractual arrangement and its treatment on leaving the business depends entirely on what the policy says. Keeping the two visibly distinct, both in policy wording and in whatever system records them, is one of the simplest ways to avoid confusion and disputes.

Frequently Asked Questions

Is TOIL the same as a day in lieu?

Broadly, yes. A day in lieu usually refers specifically to a day taken off in exchange for working a bank holiday or other day that would normally have been a rest day, while TOIL is the wider term covering any banked hours taken as time off instead of overtime pay. Both work on the same principle of swapping extra hours worked for paid time off later.

Can an employer refuse a TOIL request?

Yes, provided the policy allows it. Because TOIL is not a statutory entitlement, employers can set reasonable conditions on when accrued time can be taken, such as requiring notice or restricting requests during busy periods, in the same way they might manage annual leave requests. Any restrictions should be applied consistently and set out clearly in the policy.

Can an employer require TOIL instead of overtime pay?

Usually, yes, where the contract or workplace policy states that additional hours will be compensated through TOIL rather than overtime pay. Where the contractual position is unclear or silent, employers should agree the arrangement with the employee before the extra hours are worked, rather than assuming TOIL applies after the fact.

Does TOIL expire if it is not used?

It can, if the policy says so. Many UK employers set an expiry window, commonly three to six months, after which unused TOIL is lost. This should be communicated clearly when the hours are accrued so employees are not caught out, and reminders ahead of expiry are good practice.

Is unused TOIL paid when someone leaves the company?

This depends entirely on what the contract or policy states. Some employers pay out accrued but unused TOIL on termination, others treat it as forfeited if not taken before the leaving date. Whichever approach is used, it should be set out in writing in advance to avoid disagreements during offboarding.

Can TOIL be used instead of statutory annual leave?

No. TOIL cannot lawfully be used to replace or reduce an employee’s statutory annual leave entitlement or their minimum daily and weekly rest periods under the Working Time Regulations. The two must be tracked and managed as separate entitlements at all times.

How is TOIL usually calculated?

Most employers convert overtime to TOIL on a 1:1 basis, so an hour worked equals an hour of time off. Some offer enhanced accrual for unsociable hours, such as evenings, weekends, or bank holidays, where each hour worked might accrue 1.5 or 2 hours of TOIL. Whatever rate is used should be fixed in the policy rather than varying case by case.

Conclusion

Understanding what TOIL is and how time off in lieu works is essential for any UK employer that relies on occasional overtime. TOIL can be a genuinely useful tool for small businesses managing fluctuating workloads, giving staff flexibility and employers a way to recognise extra effort without increasing payroll costs.

A clear TOIL policy only works smoothly, however, when it rests on accurate record-keeping and consistent application across the team. Getting the basics right from the outset, eligibility, accrual, caps, expiry, and termination treatment, removes most of the disputes that arise from informal or inconsistent TOIL entitlement.

Whether you are introducing TOIL for the first time or tightening up an existing arrangement, having clear visibility of who has accrued what, and when it needs to be used, makes the difference between a system that staff trust and one that quietly becomes a liability.