Without prejudice vs protected conversation: which one you need

Without prejudice vs protected conversation at a glance

Aspect	Without prejudice	Protected conversation (s.111A ERA 1996)
Legal basis	Common law rule and privilege	Statutory: section 111A, Employment Rights Act 1996
Pre-existing dispute needed?	Yes, a genuine dispute must already exist	No, it can be used to start exit discussions
Scope of protection	Broad: any type of claim	Narrow: ordinary unfair dismissal claims only
Where it applies	Employment tribunal and the civil courts	Employment tribunal only
Protection is lost if	There is “unambiguous impropriety”	There is “improper behaviour” (a wider test)
Typical use	Settling a live grievance, claim or dispute	Proposing a settlement agreement and exit
Who can rely on it	Any party to the dispute	Employer and employee
Form	Written or oral	Written or oral

The key differences

1. The legal basis is different

Without prejudice is a rule of evidence developed by the courts. Its purpose is to encourage parties to speak freely when trying to settle, safe in the knowledge that concessions or offers cannot later be used against them. A protected conversation is a creature of statute. Section 111A was inserted into the Employment Rights Act 1996 by the Enterprise and Regulatory Reform Act 2013 and was designed to fill a specific gap: it allows an employer to raise the possibility of a negotiated exit even where there is no dispute to settle, which is exactly the scenario without prejudice does not cover.

2. Whether a dispute must already exist

This is the practical dividing line. The without prejudice rule only bites where there is an existing dispute between the parties and the communication is a genuine attempt to settle it. If an employer sends a “without prejudice” letter out of the blue, with no dispute in existence, the label alone will not make the letter privileged. Conversely, failing to add the label does not destroy privilege where the substance is genuinely part of settlement discussions. A protected conversation has no such requirement. An employer can lawfully initiate a confidential conversation about ending employment on agreed terms before any grievance or claim has arisen, which is its main advantage.

3. What the protection actually covers

Here the position reverses. Without prejudice is broad: where it applies, the protected communications are inadmissible in relation to any type of claim and in both the employment tribunal and the ordinary courts. Section 111A is deliberately narrow. It makes pre-termination negotiations inadmissible only in an ordinary unfair dismissal claim. It does not prevent the discussions being referred to in other proceedings, and in particular it does not cover:

• discrimination, harassment or victimisation claims;
• automatically unfair dismissal claims (for example whistleblowing, trade union or health-and-safety grounds);
• breach of contract or wrongful dismissal claims.

So if an employee could bring a discrimination or automatic unfair dismissal claim, a protected conversation gives the employer no protection against that claim, and the conversation may be admissible. That is a common trap.

4. The threshold for losing protection

Both protections can be lost, but the tests differ and the section 111A test is easier for an employee to meet. Without prejudice protection falls away only in cases of “unambiguous impropriety”, a high bar reserved for clear abuse such as perjury, blackmail or a threat that is plainly improper. Section 111A protection is lost where there has been “improper behaviour”, a wider and more forgiving concept for the employee. The Acas Code of Practice on Settlement Agreements gives examples of improper behaviour, including bullying, intimidation, harassment, victimisation, discrimination and putting undue pressure on a party, such as not giving them a reasonable period to consider the proposed terms. Acas guidance suggests a minimum of 10 calendar days to consider a written offer. Where there is improper behaviour, a tribunal may admit the evidence to the extent it considers just.

5. Where the rule bites

Without prejudice can be relied on in the employment tribunal and in the civil courts, because it is a general rule of evidence. Section 111A is confined to the employment tribunal, and specifically to the unfair dismissal jurisdiction. This matters where a dispute might spill into contract litigation in the courts, where only without prejudice, if it applies, will help.

Which one to use, and when

In practice the two often run together, and the safest approach is to rely on both wherever you properly can. If a genuine dispute already exists, for example an active grievance or a threatened claim, mark your settlement communications “without prejudice” and conduct them as genuine settlement discussions. That gives you the broad common law protection across all claim types.

If there is no existing dispute and you want to open a conversation about a negotiated exit, section 111A is the mechanism that makes that possible, but treat its limits seriously. Assess first whether the employee might realistically have a discrimination or automatically unfair dismissal claim. If they might, section 111A will not shield the conversation from that claim, so consider whether the matter can instead be framed as a genuine dispute that attracts without prejudice protection, and take advice before you open discussions. Throughout, avoid anything that could count as improper behaviour: give the employee reasonable time to consider any offer, do not apply undue pressure, and never suggest the outcome is a foregone conclusion.

Whichever route leads to agreement, the output is a settlement agreement, and that is a contract with strict validity conditions, including that the employee must take independent legal advice. Managing that agreement as a controlled document helps: a contract lifecycle management platform such as Pactolane can hold approved settlement agreement templates in its repository, route them through an approval workflow, complete signature via eIDAS electronic signature and keep an audit trail of every version and approval, while PactAI can produce a risk score and flag conflicts before the document is signed. The tool supports the paperwork; the negotiation strategy remains a decision for you and your advisers.

Decision rule: if a genuine dispute already exists, rely on without prejudice for its broad protection across all claims and courts; if there is no dispute and you want to start exit talks, use a section 111A protected conversation, but only where the likely claim is ordinary unfair dismissal, and where both can apply, use both together and steer well clear of improper behaviour.

General legal information, not legal advice.