If you have used all your paid annual leave, there is no general legal right in the UK to take unpaid leave instead. Extra time off is a matter for your employer’s discretion and your contract — unless the reason for the absence falls into one of five statutory categories, in which case you have a right that stands entirely separate from your holiday balance.
Those five rights are the whole game. Knowing which one your situation fits turns “please can I have some time off” into “I am giving you notice of my statutory entitlement”, and the two get very different answers.
Key Takeaways
- No statutory right to general unpaid leave. Your employer can say no, and refusing does not breach the Working Time Regulations.
- Five statutory unpaid rights survive an exhausted annual leave balance: time off for dependants, unpaid parental leave, carer’s leave, public duties, and jury service.
- Since 6 April 2026, unpaid parental leave is a day-one right under the Employment Rights Act 2025 — the one-year qualifying period is gone.
- Unpaid leave affects pay, pension contributions and sometimes continuity of service. Get the terms in writing before it starts.
Why There Is No General Right to Unpaid Leave
The Working Time Regulations 1998 create a right to 5.6 weeks of paid annual leave and nothing beyond it. Once that is used, the regulations are satisfied and silent. Nothing in UK law obliges an employer to grant further time off simply because an employee wants it.
That means a request for unpaid leave is a request to vary your contract for a period, and your employer can refuse it without giving a reason. Many employers have a discretionary unpaid leave policy in the staff handbook; if yours does, that policy is the route to use, and it may create a contractual entitlement in its own terms.
There is one boundary worth knowing: an employer cannot impose unpaid leave on you either. Regulation 15 lets an employer direct when paid annual leave is taken, but it gives no power to send you home unpaid. That is a layoff, and it requires either a contractual clause or your agreement.
The Five Statutory Rights That Still Apply
These are unaffected by how much annual leave you have left. Each has its own qualifying conditions, notice rules and limits.
| Right | Paid? | How much | Qualifying period |
|---|---|---|---|
| Time off for dependants | No (unless contract says so) | “A reasonable amount” — no fixed cap | Day one, employees only |
| Unpaid parental leave | No | 18 weeks per child to age 18, max 4 weeks per child per year | Day one since 6 April 2026 |
| Carer’s leave | No | 1 week per rolling 12 months | Day one |
| Public duties | No (unless contract says so) | Reasonable time off | Employees |
| Jury service | No statutory pay from employer | As summoned | All employees |
Time off for dependants
GOV.UK confirms employees are “allowed a reasonable amount of time off to deal with the emergency, but there’s no set amount”. It covers genuine emergencies — a dependant falling ill, a breakdown in care arrangements, an incident at a child’s school — not planned appointments. It is unpaid unless your contract provides otherwise, and there is no limit on how often you can use it.
Unpaid parental leave
The biggest recent change. GOV.UK sets the entitlement at 18 weeks per child up to their 18th birthday, capped at four weeks per child per year, normally taken in whole weeks. The Employment Rights Act 2025 removed the one-year service requirement, and ACAS confirms it became a day-one right from 6 April 2026. If you were previously told you did not qualify because you were new, check again.
Carer’s leave
One week of unpaid leave every 12 months to care for a dependant with a long-term illness, a disability, or age-related care needs. GOV.UK confirms it is a day-one right. Notice must be at least three days for a half-day or single day, and at least twice the length of the leave for longer periods — the same doubling mechanic used for annual leave. Your employer cannot refuse it, but can postpone it by up to a month where the absence would cause serious disruption, confirming that in writing within seven days.
What Employers Actually Do When You Ask
Discretionary unpaid leave is common, and most employers will consider it for a defined reason and a defined period. The requests that get approved tend to share four features.
- A specific reason. “A family wedding in Lagos” beats “some extra time”.
- Fixed dates with a return date. Open-ended requests are almost always refused.
- A cover plan. Who picks up your work, and what you will hand over.
- Enough notice. The same or more than your normal leave booking window.
If the request is for a long period, ask whether a formal sabbatical arrangement fits better — it comes with clearer terms on benefits, continuity and the right to return.
The Consequences of Unpaid Leave
Unpaid leave is not free of side effects. Check all five of these before you agree to it.
- Pay. Confirm exactly how the deduction is calculated. Most employers use daily rate × days, but the divisor (260 working days versus 365 calendar days) changes the figure materially.
- Pension. Employer and employee contributions usually stop for the unpaid period, creating a gap in your record.
- Holiday accrual. Statutory leave accrues based on the contract continuing, so ordinary unpaid leave normally does not stop accrual — but check the contract, because some policies say it does.
- Continuity of service. Continuity is generally preserved where the contract continues. Longer arrangements should say so explicitly in writing.
- Benefits and statutory payments. Periods with no earnings can affect entitlement to earnings-related statutory payments later.
A Worked Scenario
Dan has used all 28 days by mid-October. His father, who has a long-term condition, needs support with a hospital discharge in November, and Dan also wants five days in December for a family trip.
- The November absence fits carer’s leave. It is a day-one right, unpaid, up to one week per 12 months, and his employer cannot refuse it — only postpone it for serious disruption. Dan gives notice of at least twice the length of the leave.
- The December trip does not fit any statutory category. It is a discretionary unpaid leave request, and his employer can simply say no.
Two requests, same person, same empty leave balance, completely different legal footing. Naming the right correctly is what separates them.
What This Means for You
If you are an employee, work out which of the five categories your reason falls into before you ask. If it fits one, give notice under that right by name and in writing. If it does not, treat it as a negotiation: specific dates, a cover plan, and a written record of what was agreed about pay and pension.
If you are an employer, publish a short unpaid leave policy even though you are not required to. Without one, every request becomes a fresh judgement call, and inconsistent judgement calls are the raw material of discrimination claims. State who decides, what evidence you need, how pay is deducted, and what happens to accrual and benefits.
Then keep the statutory categories out of the discretionary pile entirely. Carer’s leave and parental leave are not favours, and refusing them outright is unlawful. Our overview of unpaid time off covers how to structure the policy, and the UK leave policy guide sets out where it should sit alongside your annual leave rules.
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This article is general information about UK employment law, not legal advice. Check your own contract, and take advice on your specific circumstances.