Form N266 UK: Notice to Admit Facts Guide (2026)

At a glance

• What it is: Form N266, the Notice to Admit Facts / Admission of Facts, is a free HMCTS court form served under CPR rule 32.18.
• What it does: it asks another party in civil proceedings to formally admit specified facts, or part of the serving party's case, before trial.
• Deadline: it must be served no later than 21 days before the trial — CPR rule 32.18(2).
• Permission: no court order is needed to serve it — either party can use it as of right.
• Scope of an admission: it can be used only in the proceedings in which it was served, and only by the party who served the notice — CPR rule 32.18(3).
• Withdrawing an admission: possible only with the court's permission, on terms the court thinks just — CPR rule 32.18(4).
• Costs risk: there is no automatic penalty for refusing to admit a fact, but the court's general costs discretion under CPR rule 44.2 allows it to be taken into account.

What is Form N266 (the Notice to Admit Facts)?

Form N266 is the official HMCTS form used to serve a Notice to Admit Facts in civil proceedings in the County Court or the High Court of England and Wales. It is governed by CPR rule 32.18, part of Part 32 of the Civil Procedure Rules, which deals with evidence.

Litigation is expensive and slow when every point has to be proved from scratch. A Notice to Admit Facts lets one party ask the other to accept, in writing, that certain facts are true — a delivery date, the existence of a document, the terms of an agreement — so that time and cost are not spent proving something neither side genuinely disputes. Once admitted, a fact no longer needs evidence at trial.

This is different from the formal admissions a defendant can make in response to a claim under CPR Part 14. A Notice to Admit Facts can be served by either party, at any stage up to 21 days before trial, and is aimed specifically at narrowing the factual issues that will otherwise need live evidence.

The legal framework: CPR rule 32.18

CPR rule 32.18 has four parts. Understanding each one avoids the most common mistakes people make with this form.

What the notice can require

Rule 32.18(1) allows a party to serve notice on another party "requiring him to admit the facts, or the part of the case of the serving party, specified in the notice." In practice this means the notice lists individual facts — or, less commonly, an entire part of the serving party's case — and asks the recipient to admit or refuse to admit each one. Facts that are genuinely uncontroversial (dates, the existence of a document, an address) are the best candidates; contested opinions or interpretations will simply be refused and add nothing.

The 21-day deadline

Rule 32.18(2) sets a hard limit: "A notice to admit facts must be served no later than 21 days before the trial." This is a latest date, not a fixed point at which you must serve it — a notice can be served much earlier in the litigation. Serving it in good time gives the recipient a genuine opportunity to consider the facts (and take advice, if needed) before trial preparation intensifies.

How far an admission reaches

Rule 32.18(3) limits the effect of any admission made in response to a notice. It "may be used against him only — (a) in the proceedings in which the notice to admit is served; and (b) by the party who served the notice." An admission made in one case has no effect in a different claim, even between the same parties, and it cannot be used by anyone other than the party who served the original notice.

Amending or withdrawing an admission

Rule 32.18(4) gives the court discretion to allow a party "to amend or withdraw any admission made by him on such terms as it thinks just." There is no automatic right to withdraw — it requires the court's permission, and the court can attach conditions (for example, on costs) to granting it. Because an admission binds a party until the court says otherwise, it should never be made without checking the underlying facts carefully.

Costs: why refusing to admit a true fact can be expensive

CPR rule 32.18 does not itself impose a costs penalty for refusing to admit a fact. The costs consequence comes from the court's general costs powers under CPR rule 44.2. Rule 44.2(4) says the court will have regard to "all the circumstances, including... the conduct of all the parties," and rule 44.2(5)(b) specifically lists "whether it was reasonable for a party to raise, pursue or contest a particular allegation or issue" as part of that conduct.

In practice, this means a party who refuses to admit a fact that is later proved true at trial risks being ordered to pay the costs of proving it — even if that party is otherwise successful in the case. There is no automatic rule that guarantees this outcome; it depends on the court exercising its discretion under rule 44.2 in light of how the parties behaved. This is the practical reason Form N266 has teeth: it puts the recipient on notice that an unreasonable refusal has a cost, not just a procedural, consequence.

How to use Form N266 in practice

1. Identify the facts worth listing. Review the pleadings and evidence for facts that are not genuinely in dispute, or that the other side would struggle to deny — dates, the existence and content of documents, contractual terms. Leave out contested opinions or interpretations; they will simply be refused.
2. Draft the notice clearly. Complete Form N266 with the court name, claim number and the parties' details, then set out each fact as a short, numbered statement that can be answered yes or no. Ambiguous or compound statements invite refusal.
3. Serve the notice on the other party. Send it using an accepted method of service, no later than 21 days before trial, and keep a dated copy and proof of service. Serving earlier gives the other side a genuine chance to respond.
4. Wait for the response. The recipient reviews each fact and states which are admitted. Because admissions are binding within the claim (subject to CPR 32.18(4)), most recipients take advice before responding.
5. Use the admissions at trial. Admitted facts no longer need to be proved by witnesses or documents. If a fact was refused and you go on to prove it, you can ask the court to reflect that in its costs order under CPR 44.2.

Worked example (fictional)

A supplier sues a business customer in the County Court for an unpaid invoice. Twenty-eight days before trial, the supplier serves a Notice to Admit Facts asking the customer to admit two things: that the goods were delivered on the invoiced date, and that the invoice total was correctly calculated from the agreed price list. The customer admits the delivery date but refuses to admit the invoice total, wanting to argue at trial that a discount should have applied.

At trial, the supplier proves the invoice total was calculated correctly. The customer succeeds on a separate, unrelated point and reduces the overall amount owed. Under CPR rule 44.2, the court can still order the customer to pay the supplier's costs of proving the invoice total specifically, because that fact was refused and then proved true — regardless of how the customer fared on the rest of the case.

Common mistakes to avoid

• Listing contested opinions instead of facts. A Notice to Admit Facts works for objective facts, not for disputed interpretations of a contract or disputed liability. Contested points will simply be refused, wasting the exercise.
• Serving it too close to trial. The 21-day deadline in CPR rule 32.18(2) is the absolute latest date, not a target. Serving close to the deadline leaves the recipient little time to respond properly.
• Drafting ambiguous or compound statements. A fact that combines several points, or that is open to interpretation, invites a refusal even where the underlying substance is not really in dispute. Keep each item precise and answerable with yes or no.
• Assuming a refusal has no consequence. There is no automatic penalty, but an unreasonable refusal of a fact later proved true can affect the costs order under CPR 44.2 — sometimes even where the refusing party wins on other issues.
• Signing admissions without checking them. An admission binds the party who made it and can only be withdrawn with the court's permission under CPR rule 32.18(4). Check the underlying facts before admitting anything.

If you are dealing with a live county court claim and are not sure whether a fact is worth admitting, our guide to County Court forms and plain-English glossary cover the wider paperwork you may encounter alongside Form N266. If you have just been served with a claim and need to respond first, see our guide to Form N208C.

This guide provides general information about Form N266 and the Notice to Admit Facts procedure in England and Wales. It is not legal advice and does not take account of your specific circumstances or create a solicitor-client relationship. The law described was accurate as at August 2026 and is subject to change — always check GOV.UK and legislation.gov.uk for the current position, or speak to an adviser about your own situation.

Last reviewed: August 2026 by a non-practising solicitor · Next review due: August 2027 or on rule change.