How to Handle Probation Period Termination in the UK

Probation is designed to help you assess whether a new hire is the right fit. Sometimes, despite good intentions on both sides, it doesn’t work out - and you may need to end employment during the probationary period.

Handled well, a probationary termination is straightforward, quick and low-risk. Handled poorly, it can trigger claims, reputational issues and unnecessary cost.

In this guide, we’ll break down what UK law expects of employers when ending employment during probation, a simple process you can follow, and the key documents to have in place so you’re protected from day one.

What Does Termination During Probation Mean Under UK Law?

“Probation” is not a legal status in itself - it’s a contractual period (usually three to six months) that lets you review performance, conduct and cultural fit on shorter notice terms. Your Employment Contract should set out the length of probation, any ability to extend it, the notice period, and any specific conditions that apply.

Crucially, probation doesn’t remove statutory rights. Employees and workers still have protection against discrimination under the Equality Act 2010, protection for whistleblowing, and other “automatic” unfair dismissal reasons from day one. After two years’ service, employees gain the right not to be unfairly dismissed under the Employment Rights Act 1996 - but most probationary dismissals occur well before that point.

Key legal points to keep in mind:

• Unfair dismissal: The general right to claim ordinary unfair dismissal arises after two years’ continuous employment. However, “automatic unfair dismissal” can apply from day one (e.g. health and safety complaints, whistleblowing, exercising statutory rights, certain family leave situations).
• Discrimination: It’s unlawful to dismiss because of a protected characteristic (e.g. disability, pregnancy/maternity, race, religion, age, sex, sexual orientation). This applies regardless of length of service.
• Wrongful dismissal: Even during probation, you must give the contractual or statutory notice (whichever is greater) or pay in lieu, unless there’s gross misconduct justifying summary dismissal.
• Written reasons: You aren’t generally required to provide written reasons for dismissal unless the employee has two years’ service. However, a pregnant employee or someone on maternity leave is entitled to written reasons on request regardless of service.

If you’re still setting up your approach, it’s worth refreshing the basics of Probation Periods and ensuring your contract language is clear and workable.

Can You Dismiss During Probation Without Risk?

In many cases, yes - provided you avoid discriminatory or automatically unfair reasons and you meet notice and pay obligations. The law doesn’t demand a full-blown capability or conduct procedure during probation. However, a short, fair process helps you document legitimate reasons and minimise risk.

Think of risk in three buckets:

• Reason: Your rationale must be lawful (e.g. performance, role fit, conduct or business needs). Avoid reasons linked to protected characteristics or protected activities.
• Process: Keep it simple but fair - communicate concerns, let the person respond, and confirm your decision with appropriate notice and pay.
• Paper trail: Record the objective issues you observed and any support offered. If challenged, your file shows a clean, businesslike decision.

For performance concerns, you may opt to set expectations and provide a short improvement window before deciding. A light-touch approach can sit alongside more formal tools like Performance Improvement Plans if you need structure.

A Simple, Fair Process To Follow

You don’t need a long, drawn-out procedure during probation. But a short, consistent process keeps you compliant and shows you acted reasonably.

1) Check The Contract And Probation Clause

Confirm the probation terms in the Employment Contract: length, any extension rights, notice, pay in lieu of notice (PILON), and whether any benefits or entitlements differ during probation. If the employee has over one month’s service, statutory minimum notice is at least one week unless your contract offers more.

2) Identify Clear, Business-Based Reasons

Pin down the objective reasons for ending employment: e.g. consistent lateness, inability to meet KPI benchmarks, customer complaints, or role mismatch. Avoid language that could be misconstrued as discriminatory. If you’re dealing with an allegation (e.g. misconduct), consider a proportionate fact-finding step consistent with the spirit of the ACAS Code and your policies. For more involved cases, a short, proportionate approach to Workplace Investigations helps ensure accuracy.

3) Hold A Short Meeting And Allow A Response

Invite the employee to a brief meeting. Explain the concerns, share examples and give them a chance to respond. You can decide to terminate at the meeting or shortly after - but do take the response on board before finalising the decision.

4) Consider Alternatives: Support, Extension, Redeployment

Where feasible, consider whether a brief support period, targeted training or redeployment would solve the problem. You could also extend probation if your contract allows. If performance is the issue and you want a more structured path, a short-form plan aligned to your Performance Improvement Plans approach can be effective.

5) Confirm The Outcome In Writing

If terminating, issue a brief letter confirming:

• That you’re ending employment during probation, the effective date, and whether notice will be worked or paid in lieu;
• Any contractual or statutory benefits payable (e.g. holiday pay, outstanding expenses);
• Return of property, confidentiality and post-termination obligations; and
• Who to contact with queries and when the final payslip/P45 will follow.

Keep the tone factual and professional. Avoid commentary that strays into protected territory (e.g. health conditions, pregnancy, beliefs).

6) When Is Summary Dismissal Justified?

Summary termination (without notice) is only for gross misconduct or a serious repudiatory breach of contract - think theft, violence or serious harassment. Even then, a short, fair process to establish what happened is still wise. For a deeper dive into when this is safe to use, see Summary Dismissal.

Notice, Pay And Final Administration

Getting the administration right avoids wrongful dismissal and unlawful deduction risks.

Contractual Vs Statutory Notice

• If the employee has been employed for less than one month: there’s no statutory notice requirement. Follow your contract (which might still require notice).
• After one month’s service: the statutory minimum is one week. If your contract sets a longer notice during probation (e.g. two weeks), the longer period applies.

You can require the employee to work notice or pay in lieu if your contract allows. If you rely on PILON without a contractual right, you’ll still need to pay the full amount the employee would have earned during the notice period to avoid breach.

Holiday Pay And Other Final Amounts

Employees are entitled to accrued but untaken statutory holiday on termination. Calculate up to the last day of employment, including any rolled-up amounts if relevant. Outstanding expenses and any contractual bonuses due for work already performed should also be paid in line with your agreement.

Lawful Deductions Only

If you want to deduct for unreturned equipment, excess holiday taken or training costs, make sure you have a clear contractual basis and that the deduction is reasonable. Otherwise, you risk an unlawful deduction of wages claim under the Employment Rights Act 1996. Review your approach against the rules on Wage Deductions before making any deductions.

Documentation, Data And References

Provide a P45, final payslip and a concise termination letter. Keep records of the probation process and decision in case of future questions or subject access requests under UK GDPR. If you provide a reference, keep it accurate and fair - stick to facts you can evidence.

Pitfalls To Avoid And Documents You Need

Most problems stem from poor paperwork or rushing the decision. The good news: both are fixable with a bit of preparation.

Common Pitfalls

• Vague probation clauses: If your contract doesn’t clearly define the probation period, notice or the right to extend, it’s harder to rely on. Make sure your Employment Contract is clear and up to date.
• Skipping any process: While you can keep it light, not giving the employee an opportunity to respond can look unreasonable - especially if a discrimination allegation arises. A short meeting and a brief note of the discussion go a long way.
• Problematic reasons: Avoid decisions that could be linked to protected characteristics or protected activities. For example, dismissing shortly after learning of a pregnancy, or after a health and safety complaint, is high-risk.
• Using summary dismissal too readily: Gross misconduct is a high bar. If it’s a performance issue, stick with notice or a short support plan rather than trying to force a misconduct route. The safe path is explained in the guidance on Summary Dismissal.
• Deducting without consent: Equipment or training cost deductions must be expressly allowed by contract and applied reasonably. Check your policy against the rules on Wage Deductions.

Policies And Templates That Make This Easy

• Employment Contract with a clear probation clause: Set the probation length, extension rights, notice, benefits and PILON. If you need a robust template tailored to your business, start with a properly drafted Employment Contract.
• Staff Handbook or policies: Having a simple set of policies on conduct, performance, absence and disciplinary steps keeps your decisions consistent and defensible. A practical package like a Staff Handbook helps you set expectations from day one.
• Performance and investigation frameworks: Keep proportionate tools ready for the edge cases - a short plan aligned to your Performance Improvement Plans approach, and a scaled-down process for Workplace Investigations when allegations arise.

With the right documents in place, probation becomes what it should be: a low-friction way to confirm the hire is right - or to part ways quickly, fairly and lawfully.

Key Takeaways

• Probation is a contractual trial period - it doesn’t override statutory rights. Avoid discriminatory or automatically unfair reasons for dismissal and meet notice and pay obligations.
• A short, fair process is best practice: check the contract, set out the concerns, let the employee respond, and confirm the decision in writing with correct notice or PILON.
• Give the correct notice: after one month’s service the statutory minimum is one week, unless your contract sets a longer period during probation.
• Pay what’s due: include accrued holiday and any contractual entitlements; only make deductions where you have a clear contractual right and it’s reasonable.
• Use summary dismissal only for genuine gross misconduct and follow a proportionate fact-finding process first.
• Protect yourself with strong documents: a clear Employment Contract, a practical Staff Handbook, and light-touch frameworks for Performance Improvement Plans and Workplace Investigations.

If you’d like tailored help setting up your probation process, updating your contracts or handling a tricky termination, you can reach us on 08081347754 or team@sprintlaw.co.uk for a free, no-obligations chat.