How much evidence is enough?

Quality over quantity. Three or four well-chosen documents that prove the agreement, the breach, and the loss are far better than a 200-page bundle of irrelevant emails. Judges have limited time — make their job easy.

Can I rely on text messages and WhatsApp?

Yes — messages are routinely admitted. Print or screenshot the FULL conversation chain (not just the bits that help you), with timestamps visible. Both sides should be able to see context, not cherry-picked extracts.

Do I need to send my evidence to the defendant?

Yes. The court usually orders simultaneous exchange of evidence bundles 14 days before the hearing. Both sides must see what the other will rely on. Hidden evidence is normally excluded at the hearing.

What if the defendant has the evidence I need?

You can apply for specific disclosure under CPR 27.4. Or write a polite letter asking for it; if they refuse, the judge can order it. Withholding documents that prove the case can be held against them.

Can I record phone calls as evidence?

Yes if you are a party to the call (one-party consent in England). Recording calls you are not party to is illegal. Disclose the recording in advance and provide a transcript.

What makes evidence weak?

Incomplete chains (cherry-picked emails), unsigned quotes that were never accepted, second-hand accounts ("my neighbour told me"), photos with no date stamp, bank statements that do not clearly show the relevant payment, and evidence introduced for the first time at the hearing without disclosure.

What is a witness statement and how do I write one?

A witness statement is a first-person account of the facts within your direct knowledge. It should be: numbered paragraphs, plain English, facts not argument, and end with a statement of truth ("I believe that the facts stated in this witness statement are true"). Keep it under 1,500 words for a standard small claim. Attach exhibits (documents you refer to) as numbered tabs.

When do I need an expert?

Only when a technical point is genuinely in dispute and cannot be resolved by lay evidence — for example, whether a builder's work met the relevant British Standard, or whether goods met a specific specification. You must get the court's permission (CPR 35) before instructing an expert and the fee must be proportionate to the claim value.

What evidence do I need to win?

What evidence to gather for a small claims court case, how to prepare a bundle for the hearing, what counts as strong vs weak evidence, and common mistakes.

The four evidence buckets

Sort your evidence into these four piles before you start drafting your case. The judge will work through them in this order at the hearing.

Types of evidence and what each proves

Written records are the backbone of almost every small claim. A signed contract settles the question of what was agreed. An invoice proves what was charged. A series of emails shows the timeline of the dispute and any admissions by the other side. Bank statements prove payment (or non-payment). Always use complete documents — a single page torn from a chain of emails invites the other side to produce the rest, which may be less helpful to you.

Photographs and video

Photos are highly persuasive in goods and building work disputes. A date-stamped photo of a defect taken on the day it was discovered is much stronger than one taken months later. Video is useful where damage is ongoing or movement-related — a leaking pipe, a malfunctioning appliance, a flickering light. Screenshots of online listings or social media adverts should include the URL and date visible in the browser bar.

Your own witness statement is your primary evidence. Write it in the first person, in numbered paragraphs, in plain English. Cover the key events in chronological order. Refer to exhibits by their tab number ("see Exhibit A, the contract dated 3 January 2026"). End with a statement of truth and sign it. An independent witness — someone with no personal stake in the outcome — carries more weight than a family member or close friend.

Expert evidence is genuinely rare in small claims. You need the court's permission before instructing an expert (CPR 35), and the cost must be proportionate to the claim value. For a £3,000 goods claim, a £1,500 surveyor's report is disproportionate. Most small claims judges are willing to draw reasonable inferences from lay photographs and descriptions without expert evidence. Ask yourself whether the technical point is truly beyond a judge's ability to assess from the documents before spending money on an expert.

How to build the bundle

Start with an index: tab numbers, document titles, and dates on a single page.
Arrange in chronological order (oldest first) — not by topic.
Number every page in the bottom-right corner (e.g. 1/47, 2/47).
Put witness statements at the back, separated by a divider.
Bring three identical copies on the day: judge, other party, yourself.
Serve on the other side at least 14 days before the hearing. Keep proof of service.

What makes evidence strong vs weak

Signed written contract or accepted quote
Complete email or message chains, both sides visible
Date-stamped photographs taken close to the date of defect
Bank statements clearly showing the payment and payee
Written admission by the other party (even casual: "Sorry for the delay")
Independent witness statement with a statement of truth
Manufacturer's specification confirming the goods were faulty
Cherry-picked email extracts without context
Unsigned or undated quotes
Photos with no date stamp or obvious staging
Second-hand accounts of what someone else told you
Evidence produced for the first time at the hearing
Witness statements without a statement of truth
Social media posts without the URL and date visible

Editing or annotating original documents

Highlight, but do not delete or write over original messages or documents. Altered evidence destroys your credibility. If the judge or other side notices, it can be fatal to the claim regardless of the underlying merits.

Introducing evidence at the hearing without prior disclosure

The court generally excludes evidence not served on the other side in advance. Surprise documents at the hearing are usually refused. Disclose everything you intend to rely on by the deadline the court sets.

Padding the bundle with irrelevant documents

A 300-page bundle for a £2,000 claim irritates judges. Every document you include should prove a specific point. If you cannot articulate what point a document proves, leave it out.

No index or page numbers

A judge cannot follow references to "the email about the payment" without being able to find it instantly. An un-indexed bundle wastes time and makes you look unprepared. Five minutes spent on an index saves fifteen at the hearing.

What the court expects at the hearing

The judge will have read the papers before the hearing but may not have read every word. They will ask you to introduce yourself, confirm the amount you are claiming, and give a short summary of the dispute. When referring to evidence, say: "Can I take you to Tab 3, the invoice dated 5 March 2026." The judge will turn to it. Do not read the document aloud — assume the judge has read it and highlight the key phrase or figure.

After each side has given evidence, the judge may ask questions. Answer what is asked, briefly and honestly. If you do not know something, say so. If a document contradicts you, acknowledge it and explain the context. Judges can usually tell when someone is being evasive, and it damages credibility far more than the underlying point.