This guide is maintained as a current resource for July 2026 and covers only the laws of England and Wales. Information is for general guidance, not legal advice. Consult a qualified solicitor for advice specific to your situation.
Understand the role of Acas in resolving dismissal disputes in England and Wales. This guide explains early conciliation, time limits, settlement agreements, collective conciliation, arbitration and how Acas helps parties resolve conflicts before or during employment tribunal claims.
Disputes over dismissal-including unfair dismissal, constructive dismissal, redundancy disagreements and related employment rights issues-can be complex, costly and stressful for both employees and employers in England and Wales. The Advisory, Conciliation and Arbitration Service (Acas) plays a central role in helping to resolve these disputes, often before they reach an employment tribunal. This article explains what Acas does, how its dispute‑resolution services work, what to expect from the process, how it affects time limits for tribunal claims, and practical considerations for anyone involved in a dismissal dispute.
What Acas Is and Why It Matters
Acas is an independent, publicly funded body that helps prevent and resolve workplace disputes. Its services include advice on employment rights, disciplinary and grievance procedures, mediation support, and several forms of dispute resolution. For dismissal disputes, the most significant Acas role is its conciliation services, especially early conciliation, which is a mandatory step for most employment tribunal claims.
Acas aims to resolve disputes without litigation, saving time and cost for both employers and employees. Many disputes settle through Acas rather than proceeding to a tribunal, and discussions remain confidential where settlement negotiations are involved, unlike a tribunal hearing, which is public.
Early Conciliation: First Step in Many Tribunal Claims
What Early Conciliation Is
Before most disputes-including unfair dismissal-can be taken to an employment tribunal, claimants must notify Acas of their intention to make a claim. Once notified, Acas offers the option of early conciliation, a process that brings an impartial conciliator into discussions to help both parties reach an agreement. This can occur before a formal claim is lodged and often prevents the need for tribunal proceedings.
How Early Conciliation Works
- Notification: The individual (or their representative) notifies Acas of their intention to make a tribunal claim.
- Offering Conciliation: Acas contacts the parties and offers early conciliation. Participation is voluntary, and either party can choose not to take part.
- Conciliator Assignment: If parties agree, Acas assigns a conciliator who discusses the dispute with both sides.
- Exploration of Settlement: The conciliator explores possible resolution options, including settlement terms both parties might consider acceptable.
- Outcome:
- If a settlement is reached, Acas prepares a conciliation agreement (COT3), which is legally binding once signed.
- If no agreement is reached, Acas issues an Early Conciliation certificate, which the claimant uses when submitting a formal tribunal claim.
Conciliation can also continue up to and during a tribunal claim.
The conciliator can provide a neutral overview of the law, suggest types of resolution, and facilitate discussions between the parties, but cannot give legal advice, represent either side or predict how a tribunal would decide a case.
Time Stopping and Certificates
The time limit for bringing an employment tribunal claim is normally three months minus one day from the date of the act complained of (such as dismissal). Once early conciliation begins, the clock is paused (“stops the clock”) during the conciliation period, and claimants must obtain the Early Conciliation certificate to proceed with a tribunal claim if settlement fails.
From 1 December 2025, the maximum early conciliation period will increase from six to twelve weeks, giving parties more time to explore settlement before a tribunal claim is necessary.
Other Acas Dispute Resolution Services
Acas offers a range of dispute resolution options beyond early conciliation:
- Conciliation During Tribunal Proceedings: Even after an ET1 claim is submitted, Acas can facilitate conciliation discussions to resolve the dispute before hearing, with the same impartial role.
- Collective Conciliation: When a group of employees or a union is involved, Acas can help facilitate settlement of collective disputes, including multiple dismissals or issues about redundancy consultation.
- Arbitration: In some cases, Acas can provide arbitration, where an impartial third party makes a binding decision, potentially avoiding tribunal procedures. Both individual and collective arbitration services are available.
- Mediation and Advisory Support: Acas also helps employers set up internal mediation schemes and provides guidance on preventing disputes through improved workplace practices.
Why Use Acas?
Benefits for Employees
- Opportunity to resolve disputes quickly and confidentially without a tribunal hearing.
- Cost‑free service for early conciliation and many dispute resolution processes.
- Facilitation of discussions that may produce mutually acceptable outcomes, including settlements covering compensation, references or reinstatement.
- Pausing the tribunal time limit while conciliation is ongoing.
Benefits for Employers
- Avoidance of tribunal proceedings and associated legal costs.
- Reduction in the risk of adverse judgments and public hearings.
- Support in clarifying the issues in dispute and exploring realistic settlement options.
- Access to services for group disputes and improvement of workplace relations.
Legal and Practical Limitations
Acas cannot:
- Provide legal advice or assess the merits of a case.
- Represent either side in negotiations.
- Make binding legal determinations like a tribunal.
Instead, its role is impartial facilitation to help parties reach their own agreement. If conciliation fails, the dispute proceeds to a tribunal where evidence is formally judged.
Practical Considerations and Advice
Before Contacting Acas
Before notifying Acas, it is usually advisable to attempt to resolve issues internally through informal discussion, a formal grievance, or an appeal process. Employment judges may consider whether internal resolution was attempted when assessing compensation in tribunal proceedings.
Timing and Strategy
In dismissal disputes, particularly unfair dismissal, claimants should carefully time their contact with Acas. For example, notifying Acas before the effective date of termination may affect how time limits operate, so strategic timing can influence the period during which the clock is paused. (Guidance from union sources)
Settlement Agreements
If a settlement is reached through early conciliation, parties enter a COT3 agreement, which is legally binding and generally prevents a tribunal claim on the same issues. It is important that parties understand the terms before signing and, where appropriate, seek legal advice.
Key Takeaways
Acas provides essential services for resolving dismissal disputes in England and Wales. Its early conciliation process must be used before most tribunal claims, helping parties explore resolution and potentially avoid litigation. Acas conciliators are impartial facilitators who help clarify issues and negotiate settlement terms, but do not give legal advice or represent either side. Other services include ongoing conciliation during tribunal proceedings, collective conciliation, arbitration and mediation support. Recent changes extend the maximum early conciliation period to twelve weeks, offering more time for out‑of‑court resolution. Understanding how Acas operates and its role in the tribunal process is crucial for anyone involved in dismissal disputes, helping reduce costs, stress and the prospect of a contested tribunal hearing.
