Disciplinary & Grievance Essentials: A Manager’s Guide to Getting It Right

by | Aug 12, 2026 | HR Blog

Managing disciplinary and grievance issues can be one of the most challenging aspects of leading a team. Whether you’re addressing performance or behaviour concerns, or responding to an employee complaint, following a fair and consistent process is essential.

Disciplinary processes are manager-led, while grievances are raised by employees. Although they have different purposes, both should follow the principles of fairness set out by ACAS. As a manager, your role is to set clear expectations, address concerns early, balance empathy with accountability, and seek support from HR where needed. Taking action at the earliest opportunity can often prevent issues from escalating into formal procedures.

Where possible, start with informal conversations. Using neutral, curious language, agreeing clear actions, and documenting discussions appropriately can resolve many workplace issues before they become more serious. However, formal action may be required where concerns are significant, informal steps have been unsuccessful, or an employee chooses to raise a formal grievance.

When a formal process is necessary, it’s important to act promptly, carry out a fair investigation, communicate clearly, hold meetings with the employee’s right to be accompanied, and provide a reasoned outcome with the right to appeal. Investigations should focus on finding the facts, remaining impartial, gathering relevant evidence, and keeping accurate records throughout.

Preparation is equally important during disciplinary and grievance meetings. Clearly explain the purpose of the meeting, allow employees to present their case, ask questions to clarify the facts, and take time to adjourn before making decisions where appropriate. Outcomes should always be proportionate, clearly explained, and confirmed in writing.

Finally, remember that not every workplace disagreement is a grievance. Encouraging respectful conversations, reinforcing expected behaviours, and building a positive team culture can reduce the need for formal processes. By intervening early, applying ACAS principles consistently, and keeping people at the heart of every decision, managers can resolve issues fairly while maintaining trust and confidence across their teams.

If you need support with a disciplinary or grievance matter, our team is here to help.
Contact us at support@mckinneyhr.co.uk