Running a Compliant Disciplinary Process in the UK: Tips & Guidance for Employers

30 Sep 2025

Managing employee conduct and performance is a critical part of running a business. But when issues arise, handling them through a fair and legally compliant disciplinary process is essential, not just to protect your organisation, but to ensure employees are treated with respect and transparency.

In this blog, we’ll walk you through the key steps and best practices for running a compliant disciplinary process in the UK, based on the latest guidance from ACAS and updates to employment law.

1. Understand the Legal Framework

UK employers are legally required to have a disciplinary procedure in place under the Employment Rights Act 1996. While the law doesn’t prescribe the exact format, it must reflect the ACAS Code of Practice on Disciplinary and Grievance Procedures. Failure to follow this Code can result in increased compensation awards at tribunal.

2. Ensure Policies Are Clear and Accessible

Your disciplinary policy should:

  • Be written and easily accessible to all staff.
  • Clearly outline what constitutes misconduct or poor performance.
  • Detail the steps of the disciplinary process, including investigation, hearing, decision, and appeal.

Consistency is key. Apply the policy fairly across all employees to avoid claims of discrimination or unfair treatment.

3. Conduct a Fair Investigation

Before any formal action, a thorough and impartial investigation must be carried out. This includes:

  • Gathering all relevant facts and evidence.
  • Interviewing witnesses.
  • Keeping detailed records.

Avoid common pitfalls like rushing the process or allowing the same person to investigate and make disciplinary decisions.

4. Communicate Allegations Clearly

Employees must be informed of:

  • The specific allegations against them.
  • The evidence being considered.
  • Their right to be accompanied at the hearing (by a colleague or trade union rep).

Vague or overly broad allegations can undermine the fairness of the process.

5. Hold a Formal Disciplinary Hearing

The hearing should be:

  • Scheduled with reasonable notice.
  • Chaired by someone impartial and senior to the investigator.
  • Documented thoroughly.

Allow the employee to respond fully to the allegations and present their case.

6. Make a Proportionate Decision

Any disciplinary action must be:

  • Based on the evidence.
  • Proportionate to the severity of the misconduct.
  • Consistent with previous cases.

Possible outcomes include no action, informal action, a formal warning or dismissal.

7. Offer the Right to Appeal

Employees must be given the opportunity to appeal the decision. The appeal should be heard by someone not previously involved in the case, and the outcome should be communicated in writing.

8. Keep Records and Review Practices

Maintain clear records of:

  • The investigation.
  • Hearing notes.
  • Decisions and outcomes.

Regularly review your disciplinary procedures to ensure they remain compliant with evolving legal standards.

A compliant disciplinary process isn’t just about avoiding legal risk, it’s about fostering a fair, respectful, and high-performing workplace. At HR4Business we support organisations in navigating complex HR challenges with confidence and clarity.

If you need help reviewing your disciplinary procedures or training your managers, get in touch with us today.

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