HR & Recruitment 5 min read

Can I Dismiss an Employee During Their Probation Period?

Dismissing an employee during probation is possible, but requires care. Understand the process to avoid legal challenges and ensure fair treatment.

The 5-minute answer

Yes, you can dismiss an employee during their probation period in the UK if it's based on valid reasons such as poor performance or serious misconduct, provided you follow a fair and documented process. Probationary periods allow employers to assess an employee's suitability, but employees still have rights. A clear process and solid evidence are essential to avoid claims.

Key takeaways
  • Probation periods typically last three to six months.
  • Employees retain basic statutory rights during probation.
  • Dismissals must be for valid reasons like poor performance or misconduct.
  • Documentation of performance issues is crucial to avoid unfair dismissal claims.

David runs a small marketing agency in Bristol. He hired Emily as a junior content writer on a six-month probationary period.

  1. Initial Expectations: David clearly outlined key performance indicators (KPIs) for Emily, including producing two blog posts per week, achieving 800 views per post, and adhering to brand guidelines.
  2. Performance Review (Month 2): After two months, Emily’s blog posts averaged only 400 views, and she frequently missed deadlines. David documented these issues in a performance review and provided training on SEO best practices.
  3. Follow-Up (Month 3): Performance didn't improve. Views remained below 500, and deadlines were still missed. David issued a written warning, detailing the ongoing concerns and setting a two-week improvement period.
  4. Final Review (Month 4): After two weeks, there was no significant improvement. Emily continued to struggle with deadlines and content quality. David held a final review, explained the situation, and informed her that her employment would be terminated with one week’s notice.
  5. Documentation: David ensured all performance reviews, warnings, and the final dismissal letter were documented and retained for his records.
Employee's performance is unsatisfactory.
Employee has engaged in serious misconduct.
Company needs to make redundancies due to financial reasons.
Employee does not follow company policies and procedures.
OutcomeEligible for Dismissal

What Is a Probationary Period and How Long Does It Typically Last?

A probationary period is a trial phase at the beginning of an employee’s contract, allowing both employer and employee to assess suitability. It’s a chance to confirm the role matches expectations and the employee is a good fit for the company. Typically, these periods range from three to six months, though the exact length should be specified in the employment contract. The length should be reasonable, giving enough time to evaluate performance but not unnecessarily prolonging uncertainty. During this time, the employer can observe the employee’s skills, work ethic, and how well they integrate with the team. The employee, in turn, can determine if the role meets their expectations and understand the company culture. A well-defined probationary period sets clear expectations from the outset, benefitting both parties.

What Rights Do Employees Have During the Probationary Period?

Despite being a trial period, a probation doesn’t remove all employee rights. From day one, employees retain several key statutory entitlements. This means they’re entitled to at least the National Minimum Wage or National Living Wage, depending on their age. If they meet the eligibility criteria, they also have the right to Statutory Sick Pay.

Crucially, protection against unlawful discrimination applies from the start of their employment. You can’t dismiss someone during their probation based on protected characteristics like age, gender, religion, or disability.

All employees, even those on probation, are legally entitled to a written statement of employment particulars. This document details important information about their role and working conditions. While the process for dismissal may be simpler during probation, employers must still act reasonably and fairly. It’s important to remember that simply being ‘not a good fit’ isn't enough, you need a valid reason, like performance concerns, to end the probation.

What Are Valid Reasons for Dismissing an Employee During Probation?

While a probationary period is a trial, dismissing someone isn’t something to be done lightly. It’s important to remember that even during probation, employees have basic statutory rights, including the right to national minimum wage and protection from discrimination.

Valid reasons for dismissal include poor performance. This means the employee isn’t meeting reasonable expectations, even after you’ve given them feedback and support to improve. Serious misconduct, like theft or disruptive behaviour, is also grounds for dismissal. If a role becomes redundant, meaning it’s no longer needed, that’s another valid reason.

Simply deciding an employee isn’t a ‘good fit’ isn’t enough. You must be able to clearly demonstrate a legitimate reason for the dismissal. Keeping a detailed record of any performance concerns, feedback given, and attempts to help them improve is crucial. Following a structured process will help protect your business from potential unfair dismissal claims. Remember, even during probation, fairness and clear documentation are key.

How Can Employers Ensure Fair Dismissal?

To ensure a fair dismissal and avoid potential legal claims, employers must follow a structured process. This begins with clearly communicating performance expectations at the start of the probation period. Regular review meetings should be held to provide feedback and discuss progress. If performance concerns arise, these should be documented in writing, along with details of any support or training offered to help the employee improve. If dismissal is being considered, the employee should be informed of the reasons and given an opportunity to respond. A formal written warning may be appropriate, even during probation. Employers must ensure that the dismissal reason is fair, well-documented, and consistent with the company’s policies. Following a fair process protects the business and demonstrates that the decision wasn't taken lightly.

What we'd actually do
Can I Dismiss an Employee During Their Probation Period?

I strongly recommend that employers always follow a structured dismissal process, even during probation. Documenting performance issues, providing feedback, and offering opportunities for improvement are crucial. While probation offers flexibility, treating employees fairly and with respect is essential to avoid legal claims and maintain a positive company reputation. Don't skip the formal steps just because it's a probationary period.

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Read the transcript

Most managers assume probation means fewer legal risks. It doesn't. Act on that assumption and you could find yourself facing a tribunal claim before you realise what went wrong.

So what does probation actually change? The short answer: yes, you can dismiss during probation. But the law still applies from day one. Probation is a trial phase, typically three to six months, where both sides assess whether the role is the right fit. It is not a legal status. It is a contractual period. The one thing probation genuinely affects is the two-year qualifying period for unfair dismissal. An employee in their first two years cannot yet bring an unfair dismissal claim. That is a real, meaningful difference. But here is what catches employers out. Discrimination claims carry no qualifying period at all. Neither does wrongful dismissal, which is a breach of contract claim.

Neither does automatically unfair dismissal, which covers things like whistleblowing or asserting a statutory right. Those risks exist from the employee's very first day. So probation narrows one type of exposure. It does not remove legal risk. And that distinction matters.

The valid reasons for dismissing someone during probation are broadly what you would expect: poor performance, misconduct, persistent lateness, or a fundamental breach of contract. Gross misconduct, such as theft or serious policy violations, can justify immediate dismissal at any stage of employment. But some reasons that look straightforward carry hidden risk. Absence is the clearest example. If an employee is regularly absent and you dismiss on that basis, you may be acting reasonably. But if that absence relates to a health condition that qualifies as a disability under the Equality Act, you are now in discrimination territory. That claim has no qualifying period. The same logic applies to any protected characteristic. Age, race, gender, pregnancy, religion. If your reason for dismissal touches any of these, even indirectly, the risk profile changes entirely.

So before you act, ask yourself: is there any reason this dismissal could be linked to a protected characteristic? If the answer is yes, or even possibly, take advice before you proceed.

The process is what actually protects you. Not the probation label. Here is the framework. First, document your concerns in writing as they arise. Do not wait until you have decided to dismiss. Written records of performance issues, missed targets, or conduct problems are your evidence base. Second, hold a review meeting. Give the employee a clear picture of what is not working and what improvement looks like. This is not just good practice. It demonstrates you acted fairly. Third, give the employee a genuine chance to respond. They may have context you are not aware of. An underlying health issue, a personal situation, a problem with how the role was set up. Hearing them out protects you and may change your decision. Fourth, if you proceed, give proper notice. Check the contract first. If the contract is silent, statutory minimum notice applies: one week for employees with more than one month's service.

The rule of thumb: if you could not explain your decision and your process clearly to a tribunal, you are not ready to dismiss. Probation gives you a useful window to assess and act. But it is the process you follow, documented and fair, that determines your legal exposure. Not the label.

If that was of value, subscribe to the channel for one real business question answered every video. For the same clarity in writing, the website and newsletter is at www.fiveminutebusiness.com.

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