The Label Is Not a Force Field: Protecting Settlement Talks in UK Disputes

A rule built for candour, not camouflage

The without prejudice rule is one of the most useful protections in UK dispute resolution. It allows parties to speak frankly in a genuine attempt to settle a dispute, safe in the knowledge that what they say will not normally be put before the court as an admission. It is the legal equivalent of an off-the-record conversation.

But the rule is also one of the most overestimated. A label at the top of an email does not create a protective bubble around everything that follows. The court looks at substance, context and purpose. A message that is not a genuine settlement communication may remain open and usable, even if it carries the words “without prejudice”. In our view, that gap between belief and reality causes real damage to businesses every year.

What actually makes a communication protected

The core test is whether the communication was made in a genuine attempt to settle an existing dispute. It must be part of a negotiation or offer aimed at compromise. The protection is not absolute. It can be lost where there is unambiguous impropriety, such as a threat or a dishonest statement used to further a settlement. It can also be affected by special costs rules, including offers made under Part 36 of the Civil Procedure Rules or “without prejudice save as to costs” offers.

The label matters, but it is not decisive. An email marked “without prejudice” that simply sets out a party’s open position, or makes a factual admission outside any settlement discussion, may not be protected. Conversely, an unlabelled email can be protected if it is genuinely part of settlement negotiations. That is why relying on the label alone is risky: it may reassure the sender while leaving the content exposed.

Settlement talk versus open correspondence

The distinction is easier to state than to apply. Open correspondence is the ordinary business of a dispute: a letter before claim, a response setting out the facts, a denial of liability, a request for documents. It can be shown to the court. Settlement correspondence is different: it proposes terms, concedes ground for the purpose of compromise, or explores a commercial resolution.

Problems arise when the two are mixed. A single email might admit a delivery failure, explain the company’s cash-flow difficulties, and then offer £20,000 to settle. The admission may be open; the offer may be protected. If the whole email is labelled “without prejudice”, the sender may assume everything is safe. The recipient may take a different view. In a later costs argument, the result can be expensive.

A safer approach is separation. Keep open correspondence open. Keep settlement correspondence separate, clearly headed, and limited to the settlement discussion. If a factual point must be addressed, do so in the open letter, not in the middle of a compromise offer.

Common mistakes that weaken a position

The first mistake is using the label as a substitute for substance. Calling routine correspondence “without prejudice” does not make it so. The second is sending a mixed message: an open denial of liability followed by a settlement figure in the same document. The third is copying in people who are not part of the negotiation, which can undermine confidentiality and create confusion about the document’s status.

A fourth mistake is assuming that a dispute already exists when it does not. The rule is engaged by a dispute; pre-dispute commercial discussions may be treated differently. A fifth is forgetting that “without prejudice save as to costs” is a distinct label with a distinct purpose: it keeps the content protected from the merits but allows the court to see it when deciding costs. Part 36 offers have their own formal rules and should not be improvised.

Oral discussions are another weak point. A telephone call may be protected, but if no one records the purpose and the participants, it can be hard to prove. A file note made soon afterwards is not a substitute for a clear opening statement that the call is a settlement discussion.

A practical protocol for protecting settlement talks

A short internal protocol can prevent most problems:

• Identify the dispute and the parties before using the label.
• Separate open correspondence from settlement correspondence into different emails or letters.
• Use a clear subject line and opening paragraph: “The purpose of this letter is to explore settlement of the dispute between X and Y. It is written without prejudice.”
• Do not include open factual admissions in a settlement document unless they are part of the compromise.
• Use “without prejudice save as to costs” only where the costs consequence is intended and understood.
• Limit recipients to those who need to see the communication.
• Record oral settlement discussions in a file note, including date, participants and the stated purpose.
• Preserve emails and attachments; do not edit or delete them.
• If uncertain whether a document is protected, treat it as open until advice is taken.

The commercial lesson

The without prejudice rule rewards discipline. It protects genuine attempts to resolve disputes, not careless correspondence that happens to carry the right heading. For SMEs and individuals, the practical lesson is simple: do not treat the label as a force field. Decide whether a communication is open or protected before it is sent, keep the two categories apart, and take advice before making concessions that may later be quoted back.

That approach may feel slower than firing off an email. But in a dispute, the paper trail is often the case. A little discipline at the drafting stage is cheaper than an argument about privilege later.