This guide is maintained as a current resource for September 2026 and covers only the laws of England and Wales. Information is for general guidance, not legal advice. Consult a qualified solicitor for advice specific to your situation.
Learn how to file a defence in online purchase claims in England and Wales. Step‑by‑step guidance on responding to small claims court claims, legal rights, evidence, deadlines and practical steps to protect your position in consumer and contract disputes.

When you are served with a court claim because of an online purchase dispute, it's important to understand your legal position, the procedure for defending the claim, and the practical steps you can take to protect your rights. This article explains how to file a defence in online purchase claims in England and Wales, focusing on consumer and contract law, small claims procedure, timelines and key considerations for both individuals and businesses.
What Is an Online Purchase Claim?
An online purchase claim typically arises when a buyer or seller is unable to resolve a dispute over an online transaction - for example, where goods are alleged to be faulty, not as described, not delivered, or a payment is disputed - and one party has started legal proceedings to recover money or enforce obligations. In England and Wales such claims are usually dealt with through the small claims track of the county court, designed to resolve lower‑value civil disputes in a less formal, accessible way.
If you are named as a defendant in a claim, you will have a legal right and obligation to respond within the time limits set by the court. Filing a defence allows you to set out your version of events, explain why you dispute the claimant's case, and present evidence supporting your position.
Understanding Your Rights and Legal Context
The Basis for Defending a Claim
In many online purchase disputes, legal rights stem from consumer protection and contract law principles, including:
- Consumer Rights Act 2015 – goods must be of satisfactory quality, fit for purpose and as described; services must be performed with reasonable care and skill.
- Consumer Contracts (Information, Cancellation and Additional Charges) Regulations 2013 – gives consumers rights to cancel certain online purchases within a specified period.
If the claimant alleges a breach of contract or statutory duty, you may defend on grounds such as:
- You fulfilled your contractual obligations.
- The goods or services were supplied in accordance with the contract.
- The claimant failed to take reasonable steps to mitigate loss.
- The claimant's interpretation of the law is incorrect.
Citing clear legal principles and supporting evidence will strengthen your defence.
Step‑by‑Step: How to File a Defence
1. Check the Deadline
After a claim is served, the court will specify a deadline by which you must file your defence. In most cases this is 14 days from the date of service if the claim was posted or emailed, or 28 days if you filed an Acknowledgment of Service. Failure to respond on time can lead to a default judgment against you.
2. Consider Pre‑Action Steps
Before responding, review whether the claimant complied with pre‑action protocols (such as sending a letter before claim and giving you reasonable time to respond). If they did not, you may raise this as part of your defence and explain how the lack of pre‑action conduct affects the claim.
3. Prepare Your Defence
Your defence should:
- Identify the claim number and parties.
- Briefly summarise your position on the dispute.
- Address each allegation in the claimant's particulars of claim.
- Set out the legal basis for why the claim should be dismissed or reduced.
If you believe you owe nothing, state this clearly. If you think you owe some of the amount claimed but not all, you can admit part and dispute the rest.
Supporting documentation - such as order confirmations, communications, delivery records, contracts, screenshots, expert reports, or photos - should be organised and referenced clearly in your defence.
4. File the Defence Online or by Post
You can file your defence using the Money Claim Online (MCOL) or Civil Money Claims service if the claim was started online. Complete the online form, attach your statement of case and any documents, and submit before the deadline.
If you prefer or are required to use a paper form, the N9 Defence form is commonly used for small claims. Complete it carefully, sign the statement of truth and send it to the court and the claimant's legal representative.
5. Request an Extension if Needed
If you need more time to prepare your defence, you may request an extension from the claimant. If they agree, update the court with the new deadline. If not, contact the court for guidance as failing to respond could jeopardise your position.
What Happens After You File a Defence
Once your defence is submitted:
- The court will issue a directions questionnaire to both parties. This collects information on expert evidence, witnesses and hearing availability.
- The case may be referred to mediation or Alternative Dispute Resolution (ADR), which can resolve the dispute without a hearing.
- If no settlement occurs, the claim progresses to a hearing where a judge will consider evidence from both sides.
Counterclaims and Related Options
If you believe the claimant also owes you money (for example, for return postage, cancellation costs or consequential loss), you may be able to include a counterclaim with your defence. A separate fee will often be payable for a counterclaim.
Evidence and Presentation
Good evidence is essential. Gather and organise:
- Contract terms and conditions.
- Communication records (emails, messages).
- Proof of delivery or tracking.
- Photographs showing defects.
- Correspondence indicating attempts at settlement.
Present evidence succinctly and refer to it directly in your defence to help the judge understand your position.
Common Pitfalls to Avoid
- Missing deadlines – filing late can lead to judgment without your input.
- Poor evidence – vague or incomplete evidence weakens your defence.
- Unclear legal arguments – base your arguments on recognised legal principles.
- Ignoring pre‑action conduct – failing to engage early can be detrimental.
If you are unsure about any step, organisations such as Citizens Advice offer free guidance on procedure, and consulting a qualified solicitor can help clarify complex points.
Practical Example
If an online retailer claims £500 for goods they say were not returned, your defence might include:
- Evidence goods were returned within the statutory cancellation period.
- Correspondence showing the retailer acknowledged receipt.
- Reference to applicable consumer law (e.g., Consumer Contracts Regulations).
Clearly explaining these points with supporting documents enhances your defence.
Key Takeaways
Filing a defence in an online purchase claim in England and Wales requires careful attention to deadlines, an understanding of legal principles, clear presentation of facts and evidence, and use of the correct forms or online services. You should:
- Note the deadline and respond on time.
- Review pre‑action correspondence.
- Prepare a clear defence with supporting evidence.
- File electronically or by post before the deadline.
- Complete the directions questionnaire and engage in ADR where appropriate.
Being organised and thorough improves your chances of a successful defence and helps ensure the court assesses the true merits of your case.