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30th April 2025
Understanding the ACAS Codes of Practice on Discipline and Grievance
These codes encourage early resolution whenever possible and provide structure for more formal procedures when required.
They are particularly useful for ensuring transparency in how issues are dealt with, from initial concerns to formal action, minimising confusion and promoting consistency throughout the business.
Core principles of the ACAS codes
The ACAS Codes of Practice are founded on three essential principles: fairness, consistency, and timeliness.
1. Fairness
Fairness is the cornerstone of any disciplinary or grievance procedure.
It ensures that employees are treated with respect and given a reasonable opportunity to present their side of the story.
This includes ensuring that they are informed of the allegations against them and given sufficient time and support to respond.
Fair treatment helps to build trust, reduce conflict, and uphold the integrity of the process.
2. Consistency
Consistency ensures that all cases are treated the same way.
This helps to preventperceptions of bias or unfair treatment while also reinforcing a culture of transparency and accountability.
When employees know that policies are applied consistently, it builds confidence in the system and helps avoid claims of favouritism or discrimination.
3. Timeliness
Timeliness is critical to maintaining good workplace relationships and preserving the quality of evidence.
Unnecessary delays in addressing disciplinary or grievance issues can result in misunderstandings, lowered morale, and even legal consequences.
Prompt action demonstrates that the business takes concerns seriously and is dedicated to resolving them efficiently and effectively.
As the ACAS Guide makes clear, it’s essential for businesses to follow a clear, well-documented process when handling disciplinary matters.
Here are some key steps that should form part of the procedure:
Establishing the facts
Before taking any action, it is critical to conduct a thorough and objective investigation of the situation.
This includes gathering all relevant information, speaking with those involved, and reviewing any supporting documentation.
This ensures any decisions made are fair, informed, and based on a clear understanding.
Informing the employee
If formal action is required, the employee should be notified in writing.
The letter should clearly define the nature of the problem, summarise the evidence gathered during the investigation, and explain the possible outcomes.
Providing this information allows the employee to prepare an appropriate response.
Holding a disciplinary meeting
Before any decision is made, the employee should be given the opportunity to attend a disciplinary meeting and explain their side of the story.
The meeting is an opportunity to present evidence, ask questions, and clarify any misunderstandings.
The employee is entitled to be accompanied by a colleague or trade union representative, who can offer support, take notes, and help present the employee’s case.
Making a decision
A fair and informed decision should be reached after careful consideration of all available evidence.
This decision must be clearly communicated to the employee in writing, including the outcome of the disciplinary process and any sanctions imposed, such as a warning or dismissal.
It’s important to explain the reasoning behind the decision in the letter.
Offering a right of appeal
Employees should be able to appeal the decision if they believe it was unfair, incorrect, or did not follow proper procedures.
The appeal should be made in writing within a reasonable timeframe and, if possible, heard by someone who was not previously involved in the case.
This stage allows for a review of the decision, ensuring that the disciplinary process is fair, thorough, and impartial.
Managing grievances: ACAS best practices
A proactive approach to grievance management is a key component of an effective procedure.
A grievance is defined by ACAS as any workplace concern, problem, or complaint raised by an employee, including workload concerns and allegations of bullying or discrimination.
ACAS recommends the following steps for managing workplace grievances:
Letting the employer know the nature of the grievance
Employees should report any concerns or complaints as soon as possible, preferably in writing, to ensure a clear record of the situation.
The written grievance should clearly outline the nature of the problem, when it occurred, and any previous steps taken to try to resolve it.
This helps the employer understand the situation and take appropriate action, while also demonstrating the employee’s willingness to resolve the issue fairly and constructively.
Holding a grievance meeting
The employer should set up a meeting with the employee to discuss the grievance in detail.
This meeting allows the employee to fully explain their concerns, while the employer can ask questions, clarify any points, and gather additional information as needed.
It should take place in a private setting, allowing for an open and respectful conversation.
The employee also has the right to be accompanied by a colleague or trade union representative during the meeting.
Carrying out any necessary investigations
If the circumstances aren’t clear, the employer should take reasonable steps to gather all relevant facts before making any decisions.
This might involve interviewing witnesses or checking timelines and records.
A well-handled investigation not only supports fair decision-making but also helps demonstrate transparency and objectivity in the process, which is crucial if the outcome is ever challenged.
Decide on an appropriate action and communicate the outcome
After carefully considering all relevant information, the employer should decide on the best course of action.
Similar to the disciplinary process, this decision should be communicated to the employee in writing, with a clear outline of the outcome and any next steps.
The written communication should include the rationale for the decision, providing a clear explanation for why the action was chosen.
Allow the employee to take the grievance further if not resolved
If an employee is unhappy with the outcome of the grievance process, they should have the opportunity to appeal the decision and, if necessary, escalate the matter through appropriate channels.
It’s important that employees are clearly informed of their right to appeal, including any relevant deadlines for doing so.
Why do the codes matter?
While the codes are not legally binding, they are widely regarded as the standard for good discipline and grievance management.
One of the most important reasons for this is the potential financial and reputational risk associated with not following correct procedures.
If an employer is found to have unreasonably failed to comply with guidance, an Employment Tribunal may increase the employee’s award by up to 25%.
This uplift can have a significant impact on the outcome of a case, both financially and in terms of employer credibility.
Beyond legal implications, following discipline and grievance codes is critical to creating a fair, transparent, and productive workplace.
These guidelines contribute to an environment in which expectations are clear, employees feel heard, and issues are resolved quickly and consistently.
How Sapphire HR can help
When dealing with discipline and grievance procedures, it’s always a good idea to seek tailored advice.
Consulting with HR professionals can help ensure your approach is not only compliant with legislation but also aligned with your company’s culture and values.
At Sapphire HR, we’re here to help.
Our experienced HR Consultants work closely with businesses of all sizes to implement practical, effective policies that support both employer and employee.
Whether you need ongoing, proactive HR support on discipline and grievance through our HR Unlimited package, or flexible, on-demand advice via our HR on Demand service, we offer tailored solutions to suit your business needs.
Contact us for support in implementing effective processes that protect your business and support your people.
Here to Help, Not Replace Experts:
The information contained in this blog presented for general informational purposes only. While we strive to provide accurate and up-to-date content, legal and HR practices can evolve rapidly. This blog is not a substitute for professional advice.
For specific questions or concerns regarding your unique situation, we highly recommend taking professional advice and booking a consultation with a Sapphire HR Consultant. Our consultants are experts in the field and can provide tailored guidance to address your specific needs.
We aim to work truly in partnership with our client organisations and to develop a high-quality, competent HR Service for all clients, the HR Provider that they can rely on and who gets to understand the culture and vision of your business.