Dismissing an employee within 12 months UK – what employers need to know
Dismissing an employee within 12 months UK is often seen as low risk by many employers. However, this assumption can be misleading. While it is true that most employees do not have unfair dismissal protection until they reach two years’ service at the present time this will change to 6 months service in January 2027 as part of the Employment Rights Act 2025 and employers need to be prepared.
In practice, I regularly advise employers who believe that early dismissal is straightforward. Yet tribunal claims still arise. In some cases, the real issue is not unfair dismissal but discrimination, whistleblowing, or breach of contract. These claims can arise from day one of employment. Because of this, the process you follow remains important even in the first year.
Dismissing an employee within 12 months UK: legal risks to consider
Although an employee at present usually needs two years’ service to bring an unfair dismissal claim, there are several exceptions. These exceptions mean that early dismissal can still lead to tribunal proceedings.
For example, claims linked to protected characteristics such as age, disability, or pregnancy can be brought from the first day of employment. The same applies to whistleblowing and certain health and safety concerns. This is why a careful approach is always advisable.
I recently worked with a business that dismissed a new starter after six months due to poor performance. The employer believed there was little risk. However, the employee alleged disability discrimination because no adjustments had been considered. The case became complex and costly, despite the short service.
Employers should therefore ensure that any dismissal decision is based on clear evidence and consistent reasoning. Even in the first year, a rushed decision can create problems later.
Common reasons for dismissing employees in the first year
Many dismissals in the first 12 months relate to performance, conduct, or suitability. This period often acts as a natural assessment phase. However, the reason still needs to be genuine and documented.
Typical situations include:
- Poor performance during a probation period
- Concerns about attitude or reliability
- Misconduct or breach of company rules
- Business restructuring or role changes
Each of these reasons can be legitimate. However, employers should take care to show that the decision is reasonable and not influenced by unlawful factors.
Is a formal process required in the first year?
This is one of the most frequent questions I receive. Technically, the full disciplinary procedure is not always required when dismissing an employee within 12 months UK. That said, tribunals still expect employers to act fairly and consistently.
A simple and proportionate process is often sufficient. For example, meeting the employee, explaining concerns, and allowing a response can significantly reduce risk. This also shows professionalism and helps protect your reputation.
Employers sometimes worry that following a process makes dismissal more difficult. In reality, it often strengthens your position. It demonstrates that the decision was thoughtful rather than reactive.
If you are unsure, it can be helpful to refer to guidance from ACAS. Their approach supports fairness even where formal rules do not strictly apply.
The importance of probation periods
A well structured probation period can make early dismissal clearer and less contentious. However, many businesses overlook key steps.
A good probation system should include:
- Clear performance expectations
- Regular review meetings
- Documented feedback
- Extension options where needed
Without this structure, the employer may struggle to justify the decision later. I often see cases where managers assume concerns are obvious but fail to record them. This can weaken the defence if the employee challenges the decision.
Dismissing an employee within 12 months UK and discrimination risk
Discrimination claims are the main risk area during the first year of employment. These claims do not require any minimum service. Because of this, employers should pause and reflect before making decisions that could appear linked to a protected characteristic.
For example, dismissing an employee shortly after pregnancy disclosure or a request for flexible working may suggest a connection. Even if this was not the real reason, the timing alone can create doubt.
Similarly, mental health and disability issues often arise in early employment. If an employer fails to consider adjustments, the dismissal may be challenged. Tribunals often focus on whether the employer acted reasonably and sought medical advice where appropriate.
This does not mean that dismissal is impossible. It simply means the process must be thoughtful and documented.
How to reduce legal exposure when dismissing early
There are several practical steps that can help reduce risk. These steps are usually straightforward but often overlooked.
- Ensure the reason for dismissal is clear and supported
- Keep written records of performance or conduct concerns
- Hold a short meeting before making the final decision
- Avoid sudden decisions without explanation
Consistency is also important. If similar cases have been handled differently, this may raise questions. A consistent approach often strengthens the employer’s defence.
Many organisations I work with choose to obtain ongoing Employers Law so that managers have guidance when issues arise. This can prevent disputes and improve confidence across the business.
Should you confirm dismissal in writing?
Even when service is short, confirming the decision in writing is good practice. A clear letter helps prevent misunderstandings and shows that the process was considered.
The letter should confirm the reason for dismissal, the effective date, and any notice entitlement. Although a right of appeal is not always required, offering one may reduce conflict and show fairness.
In some cases, an employee may accept the outcome more readily if they feel heard. This can reduce the likelihood of grievances or tribunal claims.
Final thoughts for employers
In reality, dismissing an employee within 12 months UK is not as simple as many believe. The absence of unfair dismissal rights does not remove all legal obligations. Instead, it shifts the focus towards discrimination and contractual fairness.
Taking a measured and consistent approach usually protects your business. It also supports your reputation as a fair employer. Employees talk, and how you handle early dismissals can influence morale and retention.
Ultimately, a short service dismissal should still reflect good management. Clear communication, reasonable decision making, and proper documentation remain key.