Dismissing Staff During Probation: A Manager’s Guide

Many leaders mistakenly view the probationary period as an absolute shield against legal repercussions, yet relying on this assumption can be a high-stakes gamble. “Can I sack someone during probation?” is a question that frequently arises when a new recruit fails to meet expectations or begins to impact team morale. It’s a frustrating situation that often brings a mix of anxiety over potential tribunal claims and uncertainty regarding the nuances of UK employment law.

We recognise the weight of these decisions and the desire to protect your organisation’s culture whilst remaining a fair and principled employer. This guide provides a clear, expert-led roadmap to help you navigate dismissals with confidence and precision. You’ll learn the essential legal requirements, understand how the 2027 changes to unfair dismissal rights affect your current strategy, and gain a step-by-step process for managing exits without the stress of regulatory risk. By following a structured approach, you can resolve personnel issues effectively and maintain the stability of your wider team.

Understanding Probationary Periods and UK Law in 2026

A probationary period is essentially a trial phase agreed upon between an employer and a new hire. Understanding Probationary Periods as a contractual tool rather than a statutory right is vital for any manager. While the law doesn’t explicitly define “probation” as a separate legal status, it recognises the specific terms set out in your employment agreement. This period serves as a structured window to assess a recruit’s professional suitability and cultural fit before they become a permanent fixture of the team.

When performance falls short or conduct becomes an issue, the question “Can I sack someone during probation?” often becomes urgent. Legally, terminating employment during this window is still a dismissal. It requires a composed, methodical approach to ensure you don’t inadvertently trigger a claim. Even though new hires have fewer protections than long-serving staff, they still possess fundamental rights from their first day of service.

Contractual vs Statutory Notice Periods

UK law dictates a statutory minimum notice period of one week once an employee has completed one month of service. However, many organisations prefer more flexibility during the trial phase. It’s essential to review your HR policies and contracts to see if you’ve specified a different notice duration. Many leaders opt for a payment in lieu of notice (PILON) clause. This allows for an immediate exit whilst fulfilling financial obligations, which often helps maintain team morale during a difficult transition.

The 2-Year Rule and Why It Matters

Currently, employees generally need two years of continuous service to qualify for “ordinary” unfair dismissal protection. The qualifying period is the time an employee must work before gaining full protection against unfair dismissal. However, the legal landscape is shifting. For those hired from 1 July 2026, this qualifying period is set to reduce to six months under the Employment Rights Act 2025. This change makes proactive management during those first few months more critical than ever. Whilst the two-year rule currently provides a degree of latitude, it doesn’t protect against claims for discrimination or “automatic” unfair dismissal, both of which apply from the very first day of employment.

The Risks of Dismissing During Probation: What You Must Avoid

While the qualifying period for standard unfair dismissal currently stands at two years for many, leaders often fall into the trap of believing they have total immunity during a new hire’s first few months. This is a dangerous misconception. When you ask, “Can I sack someone during probation?”, the legal answer is yes, but the practical answer is “only if you’ve ruled out day-one protections.” Certain categories of dismissal are deemed “automatically unfair,” meaning the employee doesn’t need a single day of service to bring a claim against your organisation.

These protections cover critical areas such as whistleblowing, health and safety activities, and exercising statutory rights. If a dismissal is even partially motivated by an employee raising concerns about workplace safety or their right to the National Living Wage (currently £12.71 for those 21 and over), you face significant legal exposure. Often, a “bad fit” label is used as a catch-all for a failed hire, but if that mismatch actually stems from a protected characteristic, you’re stepping into the territory of a high-value discrimination claim.

Discrimination and Protected Characteristics

The Equality Act 2010 provides absolute protection from day one for nine specific characteristics: age, disability, gender reassignment, marriage and civil partnership, pregnancy and maternity, race, religion or belief, sex, and sexual orientation. A common pitfall occurs when a manager dismisses a recruit for poor attendance, unaware that the absences are linked to an underlying disability or pregnancy-related illness. In these instances, the dismissal could be viewed as discriminatory, regardless of the employee’s probationary status. We recommend a thorough review of all performance data to ensure no hidden biases are influencing the decision.

Wrongful Dismissal vs Unfair Dismissal

It’s vital to distinguish between unfair dismissal and wrongful dismissal. While unfair dismissal relates to the fairness of the reason and the process, wrongful dismissal is a pure breach of contract. If you terminate an employee without providing the correct notice or payment in lieu of notice (PILON) as specified in their agreement, you’ve committed a breach. Even if the employee cannot claim ordinary unfair dismissal due to their short service, they can still pursue you for the value of their notice period and any accrued benefits. Ignoring these contractual obligations often leads directly to an employment tribunal, incurring unnecessary legal costs and reputational damage. Seeking expert employment law advice early in the process ensures your exit strategy is both legally sound and contractually compliant.

A Step-by-Step Process for a Fair Probationary Dismissal

Navigating a dismissal requires a structured approach to remain ethically grounded and legally secure. While you might be wondering, “Can I sack someone during probation?”, the answer often lies in the strength of your internal disciplinary procedures. Adhering to these established protocols isn’t just about compliance; it’s about demonstrating that you’ve acted reasonably and consistently. A clear paper trail, built through regular performance reviews and documented check-ins, provides the necessary evidence should your decision ever be challenged. This proactive documentation acts as a vital catalyst for long-term organizational stability.

Conducting the Probation Review Meeting

Invite the employee to a formal meeting in writing, clearly stating that their continued employment is at risk. During the session, present your evidence of underperformance or conduct issues calmly and professionally. Use specific examples from previous performance reviews to support your points. It’s vital to allow the employee an opportunity to respond to the concerns before you reach a final conclusion. Remember, they have a statutory right to be accompanied by a work colleague or a trade union representative. Failing to permit this can lead to unnecessary friction and potential legal complications.

Documenting the Outcome and Right to Appeal

Confirm your decision in a formal dismissal letter. This document must specify the reason for the termination, the notice period, and the final date of employment. It should also detail final pay and any accrued holiday to ensure total transparency. While not always a strict legal requirement for staff with short service, offering a right to appeal is considered best practice amongst modern consultancies. Documenting the “fair reason” for dismissal is the best defence against future claims.

Access professional support for your disciplinary and grievance hearings

How Professional HR Support Minimises Dismissal Risks

Managing a difficult exit is one of the most taxing responsibilities a leader faces. While you might feel confident asking, “Can I sack someone during probation?”, the administrative and emotional complexity of the process often distracts from core organisational goals. We provide outsourced HR services specifically designed to act as a stabilising force during these transitions. By acting as a collaborative partner, we help you navigate the intricacies of compliance with the calm reliability of a seasoned consultant. Our goal is to transform what’s often a source of anxiety into a structured, professional process that protects both the business and its people.

Customised Support for Disciplinary and Grievance Hearings

We manage every stage of the dismissal process, from drafting the initial invite to delivering the final outcome letter. Having an expert third party lead the meeting ensures total neutrality, which is vital for maintaining professional standards and reducing interpersonal friction. Our consultants provide on-site support for these sensitive sessions, taking the lead on complex conversations that might otherwise strain internal relationships. This removes the emotional burden from your management team, allowing them to focus on maintaining morale amongst the remaining staff. Often, our performance management support identifies opportunities to course-correct a new hire’s behaviour before a dismissal becomes necessary. This proactive approach protects your culture whilst addressing the root causes of organisational challenges.

Protecting Your Business from Future Claims

A robust defence against a tribunal starts long before a dismissal meeting occurs. Our HR audits identify weak spots in your recruitment and probation frameworks, ensuring every contract is fundamentally tribunal-proof and aligned with current regulations. You gain total security through our 24/7 employment law advice, allowing you to handle operational hurdles with absolute confidence. We frame these administrative functions not as a bureaucratic necessity, but as a vital catalyst for your organisation’s long-term stability. By securing your processes now, you build a foundation of principled action that discourages litigation and fosters a culture of integrity.

Securing Your Organisation’s Future Growth

Managing the end of a new hire’s journey requires a delicate blend of legal precision and human-centric empathy. Whilst the answer to “Can I sack someone during probation” is often yes, doing so successfully depends on your commitment to fair process and robust documentation. We’ve explored how identifying day-one rights and adhering to your own disciplinary procedures acts as a vital shield against costly tribunal claims. As the qualifying period for unfair dismissal prepares to shift, staying ahead of these regulatory changes ensures your business remains agile and compliant.

Our team of specialist employer-side experts is here to provide the calm reliability you need. Whether you require a comprehensive HR compliance audit to proof your contracts or on-site support for difficult hearings, we act as a stabilising force for your leadership team. You don’t have to navigate these personnel complexities alone.

We’re invested in your success and ready to help you build a more secure, productive workplace.

Frequently Asked Questions

Can I sack someone on probation with immediate effect?

You can only dismiss an employee with immediate effect if they have committed an act of gross misconduct, such as theft, fraud, or physical violence. In most other scenarios, you must provide the notice period specified in their employment contract. Many leaders choose to use a Payment in Lieu of Notice (PILON) clause to end the relationship immediately whilst fulfilling their financial obligations, ensuring a clean break that protects team morale.

Do I have to give a reason for dismissal during a probationary period?

Whilst there is no statutory requirement to provide a written reason for dismissal for employees with less than two years’ service, it is highly recommended as best practice. Providing a clear, performance-based reason helps demonstrate that the decision was not based on discriminatory grounds. A transparent approach builds trust and provides a solid defence if an individual ever questions why they were sacked during probation.

What is the statutory notice period for someone on probation in the UK?

The statutory minimum notice period is one week for any employee who has been continuously employed for at least one month but less than two years. Before the one-month mark, there is no statutory notice requirement, though you must always check the specific terms of your employment contract. Most professional contracts specify at least one week’s notice from day one to ensure clarity and fairness for both parties.

Can an employee claim unfair dismissal if they are sacked during probation?

Generally, an employee cannot claim “ordinary” unfair dismissal until they have reached the two-year qualifying period. However, they are protected from “automatic” unfair dismissal and discrimination from their very first day. This means they could still bring a claim if they believe the dismissal was related to a protected characteristic, such as pregnancy or disability, or if they were dismissed for whistleblowing or health and safety reasons.

Do I need to follow a full disciplinary process for a probationary employee?

You should always follow your own internal disciplinary procedures, even for those on probation. Failing to adhere to your published policies can lead to claims of wrongful dismissal or breach of contract. A shortened, “light-touch” process is often appropriate for probationary staff, but it must still include a formal meeting, the right to be accompanied, and a written outcome to ensure the process remains legally defensible.

Can I extend an employee’s probation period instead of sacking them?

You can certainly extend a probationary period if the employment contract contains a specific clause allowing you to do so. This is often a constructive alternative to dismissal when a new hire shows potential but requires more time to meet specific performance targets. You must confirm the extension in writing, clearly outlining the areas for improvement and the support you will provide during the additional trial period.

Article by

Josephine Broadstock

Josephine Broadstock is the Founder of Altum HR and a recognised thought leader in HR strategy and operational delivery. With a career grounded in employment law and hands-on business support, Josie has built a reputation for helping organisations move beyond transactional HR into truly strategic, commercially aligned people management.

At the core of Josie’s approach is a belief that HR should not sit in isolation—it should actively drive business performance. She works closely with business owners and leadership teams to understand how their organisations function in practice, not just on paper, enabling the design and implementation of people strategies that are both legally robust and operationally effective.

Josie specialises in translating complex employment law and HR challenges into clear, practical solutions that support growth, reduce risk, and improve organisational efficiency. Her work often focuses on bridging the gap between policy and execution—ensuring that processes are not only compliant but also embedded into day-to-day operations in a way that adds measurable value.

Through Altum HR, Josephine leads a team of highly qualified consultants who share her commitment to quality, personalisation, and commercial impact. She is particularly passionate about raising standards within the HR industry, advocating for a more consultative, expert-led approach that prioritises long-term business outcomes over quick fixes.

As an author, Josie shares insights on employment law developments, operational best practice, and real-world HR challenges, offering business leaders practical guidance they can apply immediately. Her content is designed to cut through complexity and provide clarity in an ever-evolving workplace landscape.