Handling an employee grievance begins with identifying the allegations, desired outcome and any immediate protection or preservation needs. A complaint should not be rejected simply because it arrives by email instead of on the preferred form.
Allocate a fair process
Check whether the usual decision-maker is implicated and appoint an appropriate alternative. Acknowledge the issues and clarify unclear points without demanding that the employee select legal labels. Acas guidance describes the investigation, meeting, decision and appeal stages. [1]
Consider interim arrangements where ongoing contact, pay or health is affected. Avoid moving the complainant automatically in a way that disadvantages them before the facts have been assessed.
Explain findings issue by issue
Gather relevant evidence and give people a fair opportunity to respond. Keep confidentiality proportionate to the investigation rather than promising absolute secrecy. Record why each allegation is upheld, rejected or unresolved and what action follows.
Communicate the outcome and appeal route within the appropriate scope, respecting other people's personal information. Check that agreed actions actually happen. Investigation preparation supports fact finding; whistleblowing handling may require a parallel assessment if the complaint discloses wrongdoing in the public interest.
Recognise the complaint before deciding the procedure Read the substance of the message and identify the work problem being raised. An employee may not use the word grievance or may submit it through an unexpected channel. Clarify their concerns and whether they seek formal handling without treating a missing form as a reason to ignore the matter. Record the issues, relevant dates and requested outcome. If the message contains several different concerns, explain how each will be addressed rather than selecting the easiest point and leaving the rest unacknowledged.
Check whether the complaint involves discrimination, harassment, protected disclosure or another issue requiring additional consideration. A single communication can need more than one assessment. Do not insist that the employee choose the correct legal category before the organisation responds to the facts. Identify any immediate risk to people, evidence or continuing pay arrangements and assign responsibility for that issue. The initial acknowledgement should explain the contact and next step, while avoiding promises about the outcome before relevant information has been gathered.
Allocate responsibility with conflicts in view Select a person able to handle the grievance fairly and consider their involvement in the events. Where the normal manager is the subject of the complaint, provide another route. Acas advises a fair process with evidence considered from all sides and a written record of decisions and reasons. [1] An external adviser can assist a small business, but their role should be clear. Distinguish investigating facts, making the grievance decision and any later disciplinary action against another person, rather than allowing those stages to merge without explanation.
Agree a realistic investigation scope and timetable, identifying the documents and people relevant to each issue. Preserve material vulnerable to routine deletion. If another process is already running, decide how the matters interact and explain the arrangement to those affected. Pausing one process or dealing with issues together may require judgment; neither should occur automatically simply because a grievance has been raised. Keep the reason for the decision so the eventual record shows how overlap was managed rather than suggesting the complaint was ignored as inconvenient.
Make temporary arrangements fair to those affected Consider whether work schedules, contact routes or supervision need a temporary change while the complaint is examined. Assess the effect on both the complainant and the person complained about. Do not automatically disadvantage the reporting employee by removing opportunities or changing their work without a reasoned assessment. Explain that an interim arrangement does not determine the allegation and set a review point. If an employee raises a difficulty with the arrangement, record it and consider whether a different measure would address the concern more effectively.
Prepare the grievance meeting so the employee can explain the issues and desired resolution. Address applicable accompaniment and adjustment needs, and provide relevant information in time. Keep an accurate note and allow factual corrections. Interview others with sufficient information to answer the matters concerning them, while limiting unnecessary disclosure. Absolute secrecy may be impossible in a fair investigation, so explain confidentiality realistically. The organisation should protect information without making promises that later prevent witnesses or the person concerned from understanding and responding to the allegation.
Give reasons that answer each material issue Structure the outcome around the agreed scope. Explain what was found, the evidence supporting it and why an issue is upheld, rejected or remains unresolved. Distinguish the grievance outcome from confidential details of another person's disciplinary treatment. Where action is needed, identify the practical remedy and who will implement it. A generic statement that appropriate action has been taken may leave an ongoing reporting or pay problem unexplained. Communicate enough for the employee to understand the result and the available appeal route.
Monitor delivery after the letter is sent. Check that a payroll correction, revised reporting line or agreed support actually occurs and retain completion evidence. Keep any appeal impartial and focused on the grounds raised, with further enquiries where needed. Review whether the complaint reveals a wider policy or management problem without assuming one upheld allegation proves every similar concern. Preserve the case record under the appropriate retention decision. A grievance process is complete only when the decision and any resulting actions are clear, not merely when the employer closes the email thread.
Frequently asked questions
Can an employer disregard a grievance because the employee used ordinary email?
The substance should be considered and any procedural clarification requested. A preferred form should not become a reason to ignore a clearly identified workplace complaint.
Who should handle a complaint against the usual grievance manager?
Arrange a suitable alternative with sufficient impartiality and authority. Record any conflict and how investigation, decision and appeal responsibilities will be separated.
Should the complainant always be moved away while the grievance is investigated?
No automatic rule is appropriate. Assess temporary options, their impact and the reason for the chosen arrangement, with a clear review point.
How much disciplinary information about another employee belongs in the grievance outcome?
Provide enough to explain the grievance findings and relevant remedy while respecting confidentiality. The full details of another person's sanction may not be appropriate to disclose.
What should the employer check after issuing an upheld grievance decision?
Confirm that promised actions are implemented, record completion and address any continuing difficulty, rather than treating the outcome letter alone as resolution.
Official sources
Sources checked: 9 September 2026. Check the linked guidance for subsequent changes.
General information only. The appropriate action depends on your circumstances and the applicable jurisdiction.
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