A UK Breach of Contract Letter is a formal pre-action communication sent by an innocent party to a party that has failed to perform its contractual obligations, governed by the laws of England and Wales. In English legal practice, this letter is commonly referred to as a "Letter Before Action" or "Letter Before Claim" when it relates to a breach of contract that the sender intends to litigate if the matter is not resolved.

The Practice Direction on Pre-Action Conduct and Protocols, which forms part of the Civil Procedure Rules (CPR), requires parties to civil disputes in England and Wales to exchange correspondence and relevant documents before commencing court proceedings. The Practice Direction applies to all types of civil claims, including breach of contract, and its purpose is to enable the parties to understand each other's position, identify the issues in dispute, consider whether the matter can be resolved without litigation, and narrow the issues if proceedings become necessary.

Under English contract law, a breach of contract occurs when one party fails to perform any of its obligations under the contract without lawful excuse. A breach may be actual (the party fails to perform when performance is due) or anticipatory (the party makes clear before the time for performance that it will not perform). The innocent party is entitled to claim damages for losses caused by the breach, and in the case of a repudiatory breach (one that goes to the root of the contract), the innocent party may also treat the contract as at an end.

The measure of damages for breach of contract in England and Wales is compensatory: the purpose is to put the innocent party in the position they would have been in had the contract been performed, as established by the Court of Exchequer in Robinson v Harman (1848). However, damages must not be too remote. The remoteness rule, established in Hadley v Baxendale (1854), limits recoverable damages to those that arise naturally from the breach and those that were in the reasonable contemplation of the parties at the time the contract was made.

The Limitation Act 1980 sets the time limit within which a breach of contract claim must be brought. For simple contracts, the limitation period is six years from the date of the breach (section 5). For contracts executed as a deed, the limitation period is twelve years (section 8). Once the limitation period has expired, the claim is statute-barred.

For commercial debts (business-to-business claims), the Late Payment of Commercial Debts (Interest) Act 1998 gives the creditor a statutory right to claim interest at 8% above the Bank of England base rate from the date the payment became due, plus a fixed-sum compensation charge. This statutory interest is in addition to any contractual interest provision and provides a powerful incentive for the debtor to settle promptly.

The Senior Courts Act 1981 (section 35A) and the County Courts Act 1984 (section 69) give the court a discretionary power to award interest on damages and debts in court proceedings, even where there is no contractual or statutory right to interest. The standard rate awarded by the court is 8% per annum simple interest, although the court has discretion to award a different rate.

A breach of contract letter is needed whenever a party to a contract governed by the laws of England and Wales has failed to perform its obligations and the innocent party wishes to pursue a remedy. Sending a formal pre-action letter is the essential first step in the dispute resolution process and is required by the Civil Procedure Rules before court proceedings can be issued.

When a contractor, supplier, or service provider fails to deliver goods, complete work, or provide services by the agreed deadline or to the agreed standard, a breach of contract letter documents the failure, quantifies the losses suffered, and demands that the breach be remedied within a reasonable time. This is the most common commercial dispute scenario.

When a client or customer fails to pay for goods or services that have been delivered in accordance with the contract, a breach of contract letter serves as a formal demand for payment, puts the debtor on notice that statutory interest is accruing under the Late Payment of Commercial Debts (Interest) Act 1998, and warns that court proceedings will follow if payment is not made.

When a party breaches a restrictive covenant, confidentiality obligation, non-compete clause, or exclusivity arrangement, a breach of contract letter identifies the specific provision that has been breached, explains the harm caused, and demands that the breach cease immediately. In urgent cases, the letter may also warn of an application for injunctive relief.

When a landlord or tenant breaches the terms of a commercial lease (not an assured shorthold tenancy, which has its own statutory procedures), a breach of contract letter sets out the covenant that has been broken and demands compliance within a specified period. This is particularly common for breaches of repair covenants, user covenants, and payment obligations.

When a business relationship breaks down and one party wishes to terminate the contract for repudiatory breach, a formal letter is essential to document the basis for termination and to preserve the innocent party's right to claim damages. The letter should clearly state that the sender accepts the repudiatory breach and treats the contract as at an end.

When a party has suffered losses due to a breach but wishes to explore settlement before incurring the costs and risks of litigation, a breach of contract letter that includes a proposal for alternative dispute resolution (such as mediation through the Centre for Effective Dispute Resolution) demonstrates the sender's willingness to resolve the matter proportionately and may strengthen their position on costs if the case proceeds to trial.

Parties and Identification — Identify the sender (the innocent party) and the recipient (the breaching party) by their full legal names, addresses, and, for companies, their Companies House registration numbers. Specify whether each party is an individual, limited company, limited liability partnership, sole trader, or partnership, as this affects the remedies available and the limitation period that applies.

Contract Details — Identify the contract that has been breached by its title, date, and the parties to it. If the contract was varied or amended, reference the relevant amendments. Include any unique reference numbers (purchase orders, project numbers, account numbers) that help the recipient identify the specific contract in question.

Description of the Breach — Set out in clear and specific terms exactly how the recipient has breached the contract. Identify the specific clauses or obligations that have been broken, the dates on which the breach occurred or became apparent, and any prior correspondence or attempts to resolve the matter. Vague or general allegations weaken the claim; precision is essential.

Quantification of Losses — Calculate and state the amount of damages claimed in pounds sterling. Explain how the figure has been arrived at, listing each head of loss separately (e.g. cost of replacement goods, lost profits, wasted expenditure, additional costs incurred). The losses must satisfy the remoteness test in Hadley v Baxendale: they must either arise naturally from the breach or have been in the reasonable contemplation of the parties at the time the contract was made.

Remedy Sought — State clearly what the sender wants the recipient to do: pay a specific sum, perform outstanding obligations, or both. If the sender is prepared to accept a lesser remedy (for example, part payment or a revised delivery schedule), this should be mentioned as part of the offer to settle.

Response Deadline — Specify a reasonable deadline by which the recipient must respond. The Practice Direction on Pre-Action Conduct and Protocols does not prescribe a specific period for breach of contract claims (unlike the Pre-Action Protocol for Debt Claims, which specifies 30 days), but 14 days is generally considered reasonable for straightforward claims, with longer periods (28 days or more) appropriate for complex matters.

Alternative Dispute Resolution — The Practice Direction expects parties to consider ADR before commencing proceedings. Including a proposal to mediate, use early neutral evaluation, or engage in some other form of ADR demonstrates the sender's compliance with the spirit of the CPR and may influence the court's approach to costs if the matter proceeds to trial.

Consequences of Non-Compliance — Warn the recipient that if a satisfactory response is not received by the deadline, the sender intends to issue proceedings in the County Court or High Court (as appropriate) without further notice, seeking damages, interest under section 35A of the Senior Courts Act 1981 or section 69 of the County Courts Act 1984, and costs.

Reservation of Rights — Include a clear statement that the letter is written without prejudice to the sender's rights under the contract and at law, and that all rights and remedies are expressly reserved. This prevents the letter from being construed as a waiver or estoppel.