Skip to content

What is the Difference Between Ordinary, Serious and Gross Misconduct in the UK?

Summary

  • Misconduct in the workplace falls into three categories – ordinary, serious, and gross – each requiring a different level of response from employers before dismissal can be considered.
  • Ordinary misconduct typically requires informal discussions and written warnings before dismissal; serious misconduct allows for a shorter process; and gross misconduct can justify immediate dismissal without notice or pay in lieu of notice.
  • Regardless of the type of misconduct, employers must follow a fair procedure, adhere to the ACAS Code of Practice on disciplinary and grievance procedures, and ensure any dismissal cannot be challenged as unfair or discriminatory.
  • This article is a guide to managing employee misconduct for employers operating in England and Wales, produced by LegalVision, a commercial law firm.
  • LegalVision specialises in advising clients on employment law and disciplinary procedures.

Tips for Businesses

Maintain a clear misconduct and disciplinary policy in your staff handbook and ensure all employees are aware of it. Keep records of all incidents, meetings, and warnings. Even in gross misconduct cases, investigate thoroughly and allow the employee to respond before acting, as procedural failures can result in unfair dismissal claims.

Summarise with:
ChatGPT logo ChatGPT Perplexity logo Perplexity

On this page

As an employer, there will be times when your employees do not follow workplace rules. These actions may vary in severity and can amount to ordinary, serious, or gross misconduct. While all instances involve inappropriate employee behaviour, there are significant differences between each level. You must understand these differences so that the actions you take are appropriate and do not result in accusations of unfair dismissal or discrimination. This article will explain the differences between different types of misconduct and relevant ways to respond to them.

What is Ordinary Misconduct?

As an employer, you are likely to have company rules in place, such as those in your employee’s employment contract. There may also be implied rules within the workplace. Your contracts would not spell these out, but your employee should reasonably expect them to exist.

Employee ordinary misconduct is when an employee does not behave appropriately and, therefore, breaks the workplace rules, such as being late or taking unauthorised absences from work. Ordinary misconduct mainly concerns breaking minor rules.

What is Serious Misconduct?

Employee misconduct can constitute more serious behaviour than ordinary misconduct. As an employer, you may have an internal procedure in place to help distinguish between different types of conduct. 

Serious misconduct is where an employee’s behaviour has caused severe harm to the business or organisation. This could be:

  • an error made by an employee when calculating their expense and causing financial loss to your business; or
  • damage to your business’ image or reputation through social media.
Continue reading this article below the form
Need legal advice?
Call 0808 196 8584 for urgent assistance.
Otherwise, complete this form, and we will contact you within one business day.

What is Gross Misconduct?

Employee gross misconduct is where your employee has carried out a grave act, or the effect of what your employee has done is very serious, such as:

  • being physically violent;
  • stealing; or
  • committing gross negligence.

The serious act could have been committed away from the workplace but, in doing so, reflected poorly on your business.

Front page of publication
2025 Key UK Employment Law Changes

This factsheet outlines key developments in 2025 affecting workforce management. In particular, the proposed Employment Rights Bill (2024) will drive significant changes, anticipated to start late 2025.

Download Now

What are the Key Differences?

When you are faced with employee misconduct, you may consider the possibility of dismissal. There are five fair reasons for dismissal, including employee misconduct.

Apart from the critical differences between ordinary employee misconduct, serious misconduct, and gross misconduct, one of the critical differences is how you can deal with each before considering dismissal.

Key Statistics

  • 26%: Of all UK employment tribunal claims involve unfair dismissal, with improper handling of misconduct procedures cited as a leading cause of successful employee claims against employers.
  • £11,000: The average compensation award made by UK employment tribunals in unfair dismissal cases, highlighting the financial consequences of failing to follow proper misconduct procedures.
  • 3 in 5: UK employers report experiencing at least one formal misconduct incident annually, with dishonesty and insubordination amongst the most commonly cited grounds for disciplinary action.

Sources

  1. HM Courts and Tribunals Service, Employment Tribunal Statistics Quarterly, 2024
  2. Acas, Discipline and Grievance at Work: Annual Findings Report, 2023
  3. Chartered Institute of Personnel and Development (CIPD), Workplace Conflict and Misconduct Survey, 2024

How Should I Respond to Different Types of Misconduct?

The table below outlines key steps you should take depending on the type of misconduct your employee has engaged in. In general, it is a good idea to have a strong company policy that outlines misconduct measures, as well as dismissal procedures where applicable. You should ensure that all employees are aware of such policy to avoid miscommunication and future disputes.

Ordinary Misconduct

When you are faced with employee misconduct, and it is a one-off incident, you may choose to conduct an informal discussion with the employee.

Where it is not a one-off incident, you should allow the employee to explain themselves in a pre-arranged meeting. Additionally, you should give your employee a written warning if their reasoning is unjustified, detailing how you expect them to change their behaviour and offer a warning.

If the employee does not improve, you should hold another meeting and agree on a time frame for your employee to improve. You should notify them that failure to improve could result in their dismissal.

Serious Misconduct

When you have to deal with serious misconduct, the procedures before potential employee dismissal are shorter and swifter than for employee ordinary misconduct.

In such instances, there is no requirement to issue more than one written warning to the employee detailing the risk of dismissal before carrying out an employee dismissal if their conduct does not improve. Ultimately, you should follow the procedure in your staff handbook.

Gross Misconduct

When dealing with employee gross misconduct, you can dismiss the employee immediately. However, it is vital to ensure that you can demonstrate that you have followed a fair procedure in doing so where you have investigated the allegation and allowed your employee the opportunity to give their side of the story. This means that you have proved the employee’s gross misconduct before taking the appropriate action.

Dismissal can be carried out without notice or pay in lieu of notice. Pay in lieu of notice is where your employee stops work immediately, but you pay them for what would have been their standard period of notice.

It is essential that when dealing with dismissal, regardless of which type of misconduct, you adhere to the Acas Code of Practice on disciplinary and grievance procedures, as well as your staff handbook, to ensure that you carry it out fairly.

Key Takeaways

If your employee breaks your workplace rules or misbehaves, they could be committing ordinary, serious or gross misconduct. However, the severity of the misconduct will determine what actions you can take to address it. Therefore, you must understand each type to ensure you get it right as an employer. Furthermore, the method for dealing with each type of misconduct is different, and may not always give you the right to dismiss immediately. As a result, you should also develop clear, well-understood measures and procedures for dealing with misconduct that employees are aware of.

If you need help with rules regarding employee misconduct, LegalVision provides ongoing legal support for businesses through our fixed-fee legal membership. Our experienced employment lawyers help businesses manage contracts, employment law, disputes, intellectual property, and more, with unlimited access to specialist lawyers for a fixed monthly fee. To learn more about LegalVision’s legal membership, call 0808 196 8584 or visit our membership page.

Frequently Asked Questions

If my employee has carried out ordinary misconduct, do I need to respond with a formal procedure?

Suppose your employee has committed ordinary misconduct, and the incident appears to be a one-off. You can use your discretion as to whether or not the formal procedure of meetings and letters is required or whether the incident can be responded to with an informal discussion. However, should the behaviour be repetitive behaviour, an employer should respond with the formal disciplinary procedure before potential dismissal.

Can I immediately dismiss my employee who is accused of gross misconduct?

If your employee is accused of gross misconduct, you can immediately dismiss them, provided you have proven the allegation. This means that you should have investigated the accusation and allowed them to provide their side of the story.

Can an act of misconduct outside the workplace justify dismissal?

Yes. If an employee commits an act of gross misconduct outside the workplace that reflects poorly on your business, you can still dismiss them. The key factor is whether their conduct has a negative impact on your business or its reputation.

Do I need a written misconduct policy in my workplace?

While not strictly required, having a clear written misconduct policy is strongly advisable. It outlines expected behaviour, disciplinary procedures, and dismissal grounds, helping you avoid disputes, unfair dismissal claims, and ensuring all employees understand the consequences of misconduct.

Register for our free webinars

Five Essential Contracts Every Business Needs

Online
Learn the five essential contracts every business needs. Register for our free webinar.
Register Now

Protecting Your Most Valuable Asset: IP Risk in the Age of AI

Online
Learn how AI impacts IP law and discover strategies to protect your intellectual property in our free webinar. Register now.
Register Now

Handling Customer Data Safely: GDPR Essentials for Businesses

Online
Learn lawful data collection, third-party processing risks, and practical steps to handle personal data confidently in your business. Register today.
Register Now

Global Disruption And Rising Costs: What Your Contracts Should Cover

Online
Manage global disruption and rising costs with clearer contract terms. Register for our webinar today.
Register Now
See more webinars >

Albert Cole

Solicitor | View profile

Albert (Ato) is a Solicitor at LegalVision. He completed an undergraduate degree in Business Administration in 2019 and obtained his Bachelor of Laws degree in 2022. Prior to joining LegalVision, Albert gained experience advising and assisting clients on property matters.

Qualifications: Bachelor of Laws. 

Read all articles by Albert

About LegalVision

LegalVision is an innovative commercial law firm that provides businesses with affordable, unlimited and ongoing legal assistance through our membership. We operate in Australia, the United Kingdom and New Zealand.

Learn more

LegalVision is an award-winning business law firm

  • Award

    2025 Future of Legal Services Innovation Finalist - Legal Innovation Awards

  • Award

    2024 Law Company of the Year Finalist - The Lawyer Awards

  • Award

    2024 Law Firm of the Year Finalist - Modern Law Private Client Awards

  • Award

    2023 Economic Innovator of the Year Finalist - The Spectator

  • Award

    2023 Law Company of the Year Finalist - The Lawyer Awards