What Is a Letter of Claim in a Public Liability Case?

In a public liability claim, the Letter of Claim is one of the most important early steps in the legal process. It formally notifies the defendant - and, where relevant, their insurer - that you intend to seek compensation for injury or loss. The document starts the pre‑action process under the Civil Procedure Rules (CPR) and associated Pre‑Action Protocols, ensuring all parties understand the nature, basis and key facts of the claim before any court proceedings are issued. This guide explains what a Letter of Claim is, why it matters, what it should contain, how the defendant must respond, time limits, potential risks and common questions.

What Is a Letter of Claim?

A Letter of Claim (sometimes called a “letter before action” in everyday language) is a formal document sent by a claimant or their legal representative to the proposed defendant (and insurer) outlining the basis of a public liability claim. It is a statutory expectation under Pre‑Action Protocols designed to promote early exchange of information, encourage settlement where possible and avoid unnecessary litigation. Sending a Letter of Claim does not start court proceedings, but it initiates the pre‑action timetable that the courts expect parties to follow before litigation.

The Legal Basis: Pre‑Action Protocols

Before issuing formal court proceedings in most personal injury and public liability cases, claimants and defendants must comply with relevant Pre‑Action Protocols under the CPR. These set out the conduct expected of parties, including:

• Early and full exchange of information about the claim and supporting evidence.
• Promotion of negotiation and settlement without the need for court.
• Preparation of proper documentation, including the Letter of Claim and the defendant's Letter of Response.

If either party fails to follow the Protocol without good reason, the court may impose sanctions such as adverse costs orders or adjustments to costs awarded.

Why a Letter of Claim Matters

A Letter of Claim plays several key roles:

1. Formal Notification – It tells the defendant that you believe they are liable for your injury or loss and intend to make a claim.
2. Information Exchange – It provides sufficient factual and medical background for the defendant to investigate liability and consider settlement.
3. Starts Protocol Timeline – Upon receipt, the defendant has specified time limits to acknowledge and respond, which governs the pre‑action process.
4. Avoids Procedural Risk – Sending this letter in the correct format helps protect your claim from being delayed or weakened by procedural objections.

Without a properly prepared Letter of Claim, a court might view subsequent litigation as premature or disproportionate, potentially affecting costs and case management.

What Should a Letter of Claim Contain?

A Letter of Claim should be clear, comprehensive and tailored to the facts of the case. While exact contents vary with each claim, most letters will include:

1. Details of the Parties

• Claimant's name and contact information.
• Defendant's name and address.
• If known, insurer details or a request for insurer identity.

2. Summary of Facts

A clear summary of how the accident occurred, setting out:

• The date, time and location of the incident.
• Circumstances leading to the accident.
• Why the defendant is believed to be at fault (e.g. breach of duty).

3. Nature of Injuries and Impact

An outline of the injuries sustained, medical treatment received and how the injuries affect daily life and function.

4. Financial Losses

An indication of financial losses already incurred, such as:

• Lost earnings.
• Medical costs.
• Travel expenses.
• Other heads of damage.

5. Heads of Claim

A statement of the types of compensation sought, and where possible an estimate of losses or an indication that detailed calculations will follow.

6. Evidence and Documents

A list of relevant documents that will support the claim and, where appropriate, copies enclosed. Examples include:

• Photographs of the scene.
• Witness statements.
• Medical evidence.

7. Time Limit for Response

The claim should specify that the defendant must acknowledge receipt within the timeframe set by the Protocol (usually 21 days) and indicate whether liability is admitted, denied, or requires more investigation.

Timing and Formal Response

Under the standard Pre‑Action Protocol for personal injury and public liability claims:

• The defendant or their insurer should acknowledge receipt of the Letter of Claim within 21 calendar days of posting.
• After acknowledgement, the defendant is usually given up to three months to investigate and provide a Letter of Response confirming whether liability is admitted, denied or partially admitted.

If the defendant fails to respond within these timeframes, the claimant may proceed to issue court proceedings, though compliance with Protocol obligations can still be relevant to costs and court decisions.

Letter of Notification vs Letter of Claim

In some cases, claimants may send a Letter of Notification before the Letter of Claim if they need to advise the defendant or insurer early on that a claim is likely. A Letter of Notification can share initial details and help begin dialogue but does not start the official pre‑action timetable like a Letter of Claim does.

Practical Considerations

Drafting the Letter

A well‑drafted Letter of Claim increases the chance of early settlement and avoids procedural pitfalls. It should be factual and avoid emotive language, focussing on clear presentation of evidence and legal basis for the claim.

Record Keeping

Keep copies of all correspondence, including proof of posting and delivery, as this may be important if the matter proceeds to court.

Professional Assistance

While individuals can send a Letter of Claim themselves, many people choose to instruct a solicitor to ensure compliance with Protocol requirements and strengthen early negotiations with insurers or defendants.

Common Questions

Is a Letter of Claim legally required?
Yes, for most public liability and personal injury claims under the CPR Pre‑Action Protocols, a Letter of Claim is expected before issuing proceedings. Non‑compliance can affect costs and procedural standing.

Can the defendant ignore the Letter of Claim?
If the defendant fails to acknowledge or respond, the claimant may proceed with court action after the relevant Protocol time limits, noting that non‑compliance could affect cost orders.

Does a Letter of Claim start the lawsuit?
No. It begins the pre‑action process. Court proceedings only start when a claim form and particulars of claim are issued to the court.

Can I send a Letter of Claim as a litigant in person?
Yes. Individuals without legal representation can send a Letter of Claim, but must still comply with the requirements of the relevant Protocol.

Key Takeaways

A Letter of Claim is a formal document that initiates the pre‑action stage of a public liability claim in England and Wales. It provides the defendant with clear notice of the factual and legal basis of the claim, outlines injuries and losses, and sets the procedural clock for acknowledgment and response. Preparing and sending the letter in accordance with Pre‑Action Protocols under the Civil Procedure Rules helps ensure compliance with court expectations, supports early negotiation and strengthens the overall claim. Understanding its purpose, required contents and procedural implications is essential for anyone pursuing compensation for injury or loss.