Settlement dispute: tribunal upholds COT3 signed by solicitor
A former employee's unfair dismissal claims were dismissed after his solicitor settled via ACAS. The tribunal rejected his argument that the solicitor lacked authority.
1 min read · Last updated 18 May 2026
Case details
- #withdrawal
- #cot3-settlement
- #ostensible-authority
- #settlement-dispute
Key facts
- The claimant brought two identical unfair dismissal claims on 23 June 2022.
- The claims were settled via ACAS conciliation on 4 April 2023, with a COT3 agreement signed by the claimant's solicitor.
- The claimant later disputed the validity of the COT3 agreement, arguing his solicitor lacked authority.
- The tribunal found the solicitor had ostensible authority to settle the claims.
- The claims were dismissed following withdrawal.
Timeline
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Claims presented
Mr C Phillips presented two identical unfair dismissal claims against Tata Steel UK Limited.
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Settlement and withdrawal
ACAS notified the tribunal of settlement. The claimant's solicitor emailed confirming withdrawal and consent to dismissal.
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Preliminary hearing cancelled
The scheduled preliminary hearing did not proceed due to the settlement.
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Claimant disputes COT3
The claimant emailed the tribunal disputing the legality of the COT3 agreement.
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Judge Brace's direction
Employment Judge Brace directed that a dismissal judgment should not be issued pending investigation of the COT3 dispute.
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Preliminary hearing listed
A preliminary hearing was listed for 4 July 2023 to discuss the COT3 issue.
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Preliminary hearing
Employment Judge S Jenkins heard arguments on the validity of the COT3 and whether to issue a dismissal judgment.
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Judgment issued
The tribunal issued a judgment dismissing the claims following withdrawal, finding the solicitor had ostensible authority.
The legal issue
Whether the tribunal should issue a dismissal judgment after a COT3 settlement was signed by the claimant's solicitor, despite the claimant arguing the solicitor lacked authority to agree the terms.
The outcome
The tribunal dismissed the claims, finding that the solicitor had ostensible authority to settle on the claimant's behalf.
The key reason was that the claimant had instructed his solicitor to accept the settlement offer, and the solicitor signed the COT3 within the apparent scope of her authority. The claimant's later objections about missing terms (e.g., a positive reference) did not invalidate the settlement.
No compensation was awarded as the claims were dismissed following withdrawal.
Lessons & takeaways
- A solicitor instructed to settle a claim generally has authority to sign a binding agreement, even if the client later disputes some terms.
- If you want to challenge a settlement, you must act quickly and clearly communicate your objections to the tribunal before the agreement is finalised.
- A COT3 agreement reached through ACAS is a binding settlement that ends the claim, and the tribunal will usually dismiss the case automatically.
- Disputes about the terms of a settlement (e.g., missing reference) are usually a matter for contract law, not the employment tribunal.
This case shows how a settlement reached through ACAS can bring an employment claim to a final end, even when the claimant later has second thoughts. The former employee had brought two identical unfair dismissal claims against Tata Steel UK Limited. His solicitor negotiated a settlement via ACAS, and a COT3 agreement was signed on his behalf. The claimant then argued that his solicitor lacked authority to agree to certain terms, such as a positive reference that he said was promised but not included.
What the tribunal decided
The tribunal focused on the legal concept of ostensible authority. The claimant had told his solicitor to accept the settlement offer, and the solicitor acted within the normal scope of a solicitor's role by signing the COT3. The fact that the claimant did not see the final wording before signing did not remove the solicitor's authority. The tribunal therefore issued a judgment dismissing the claims, as required by Rule 52 of the Employment Tribunals Rules of Procedure.
What could have been done differently
The claimant could have avoided this outcome by insisting on seeing the full terms before authorising acceptance, or by communicating his concerns to the tribunal immediately rather than after the settlement was reported. His email on the morning of 4 April 2023, expressing confusion about his case, was not enough to stop the process. Once the ACAS settlement was notified and the solicitor confirmed withdrawal, the case was effectively closed.
Why this matters
This case is a reminder that settlements through ACAS are binding and final. If you have concerns about your solicitor's handling of a settlement, you should raise them before the agreement is signed. After that point, the tribunal is unlikely to reopen the case unless there is clear evidence of fraud or lack of authority. The decision also highlights the importance of clear communication between client and solicitor throughout the settlement process.
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