Pre-action disclosure

A way to get hold of specific documents from a likely opponent before you issue a claim — not the same as a Letter Before Action, and not available against just anyone.

Do I have to have already started my claim to apply for pre-action disclosure?

No — the opposite. Pre-action disclosure is specifically an application you make before you issue proceedings, to get hold of documents that would help you decide whether to issue a claim at all, or how to plead it. Once proceedings have started, the same documents would normally come out through ordinary disclosure instead, and a pre-action disclosure application is no longer the right route.

Does sending a Letter Before Action count as applying for pre-action disclosure?

No, and the two are easy to confuse. A Letter Before Action is simply a letter setting out your claim and inviting a response before you issue proceedings — it is not a court application and does not compel anyone to hand over documents. Pre-action disclosure is a formal application to the court, supported by evidence, asking a judge to order specific documents or classes of documents to be produced. You can send a Letter Before Action without ever needing pre-action disclosure, and the two usually only combine where the other side has not engaged properly with your letter.

What happens if the other side just ignores my request for documents before I apply?

You should normally ask for the documents directly first, and give a reasonable opportunity to respond, before making a formal application — the court expects to see that you tried the sensible route first, and a failure to engage can be reflected in who pays the costs of the application. If a direct request gets nowhere, that history of being ignored usually helps your application rather than hurting it.

Is pre-action disclosure the same as the Pre-Action Protocol?

No. A Pre-Action Protocol (or, where no specific protocol applies, the Practice Direction on Pre-Action Conduct) sets out general steps parties are expected to take before issuing a claim, such as exchanging letters and trying to narrow the dispute. Pre-action disclosure is a specific court application, under CPR 31.16, for an order compelling particular documents. Protocol compliance is about conduct generally; pre-action disclosure is one specific remedy available if conduct and voluntary document-sharing do not resolve things.

What does it cost to apply?

There is a court fee for making the application, published in the HMCTS EX50 fees schedule — check the current figure on GOV.UK before applying, since court fees change periodically. The general rule on costs is that the applicant pays the costs of the application and of complying with it, unless the court orders otherwise, so factor that in before deciding whether an application is worth making for a small claims case.

Can I get documents from someone who will not be a party to my claim?

Not through pre-action disclosure. CPR 31.16 only applies to someone who is likely to be a party to the eventual proceedings. If the documents you need are held by a third party who will not be a defendant or claimant — for example a bank, or an uninvolved witness — a different procedure, non-party disclosure under CPR 31.17, applies instead, and only once proceedings have already started.

The test the court applies

CPR 31.16 sets a four-part test, and an application for pre-action disclosure has to satisfy all of it. First, the person the application is made against must be likely to be a party to later proceedings. Second, the applicant must also be likely to be a party to those proceedings. Third, if proceedings had already started, the documents sought would fall within the standard disclosure the respondent would have to give anyway — this is not a licence to go fishing for anything that might be useful, only for what ordinary disclosure would eventually produce regardless. Fourth, and separately, disclosure before proceedings start must be desirable in order to dispose fairly of the anticipated proceedings, assist the dispute to be resolved without proceedings, or save costs.

The power behind the rule sits in statute — section 33 of the Senior Courts Act 1981 for the High Court, and the equivalent section 52 of the County Courts Act 1984 for the county court, where most small claims applications of this kind are actually made. CPR 31.16 is the procedural rule that puts that statutory power into practice: it tells you how to apply, on notice, supported by evidence explaining why each limb of the test is met.

Even where all four conditions are satisfied, making the order is discretionary, not automatic. The court weighs whether an order is proportionate given what is actually in dispute, and it is generally reluctant to use pre-action disclosure as a way of letting one side test the strength of a potential claim before deciding whether to bring it at all — the documents sought have to relate to an issue that is genuinely likely to be in the proceedings, not a general curiosity about what the other side might be holding.

How this differs from the Pre-Action Protocol, and from ordinary disclosure

It is easy to blur pre-action disclosure together with the general pre-action conduct expected of parties, but they are different tools solving different problems. The relevant Pre-Action Protocol, or the Practice Direction on Pre-Action Conduct where no specific protocol applies, sets out expected behaviour before a claim is issued — exchanging a clear statement of the claim and response, trying to narrow or resolve the dispute, and generally acting reasonably. It is not itself a mechanism for compelling specific documents; it is a conduct standard, and the court can take non-compliance into account on costs later.

Pre-action disclosure is a specific, targeted court order for identified documents or classes of documents, obtained through a formal application with its own test and its own evidence requirement. It sits alongside protocol compliance rather than replacing it — in practice, a party usually asks for the documents directly first, in correspondence, and only applies to court under CPR 31.16 if that request is refused or ignored.

It is also distinct from ordinary disclosure once a claim is issued. After proceedings start, each party gives standard disclosure of the documents it holds that support or undermine any party's case, without needing a separate application for each document. Pre-action disclosure exists for the narrower situation where a potential claimant genuinely cannot tell whether they have a claim worth bringing, or how strong it is, without seeing specific documents first — it front-loads a small, targeted slice of what disclosure would eventually produce anyway, rather than opening up the whole process early.

What this means for a self-representing claimant

For someone considering a small claim without a solicitor, pre-action disclosure is worth knowing about but rarely worth reaching for quickly. It involves a separate court application, a court fee, supporting evidence, and — because the general costs rule puts the cost of the application and of complying with it on the applicant — a real risk of paying for an order that produces documents you could have obtained by simply asking. The sensible order of operations is usually: send a clear Letter Before Action setting out what you are asking for and why, explicitly list the documents you want to see and explain why, and only consider a pre-action disclosure application if that request is ignored or refused and the documents are genuinely necessary to know whether you have a claim at all.

Where it is used well, it can stop a weak claim from being issued unnecessarily, or strengthen a good one before the other side has had a chance to adjust their position — but because the test has four separate limbs and the remedy is discretionary even once they are met, an application prepared without care is itself at real risk of being refused, with the costs consequences that follow.

Someone believes a tradesperson they paid for building work used substandard materials, but cannot tell from the finished work alone which materials were actually used or what was invoiced for. They write to the tradesperson asking for the material delivery receipts and supplier invoices for the job. The tradesperson does not respond for six weeks.

Delivery receipts and supplier invoices

Would these fall within standard disclosure later?

Direct request made and ignored

Yes — supports desirability (limb 4)

Court fee for the application

£321 (general application on notice, EX50 fee 2.4)

Because both parties are likely to be party to the eventual claim, the documents would plainly be disclosable later, and a direct request was ignored, an application for pre-action disclosure has a reasonable prospect of success. If granted, the documents are produced before any claim is issued, letting the claimant decide whether the materials genuinely were substandard before committing to court fees for the claim itself.

Letter Before Action

Civil Procedure Rules, rule 31.16

Senior Courts Act 1981, section 33

County Courts Act 1984, section 52

EX50 — civil and family court fees

Pre-Action Disclosure — Small Claims Glossary

What pre-action disclosure is, the four-part CPR 31.16 test, and how it differs from a Letter Before Action and from ordinary disclosure.