Breach of Contract Damages Estimator UK 2025 — Estimate Your Compensation
Use our free breach of contract damages estimator to calculate the compensation you may be entitled to under English law. The tool calculates both expectation damages (putting you in the position you would have been in had the contract been performed) and reliance damages (recovering wasted expenditure), shows which is higher, and adds statutory interest where a court claim is pursued.
Understanding Breach of Contract Under English Law
A breach of contract occurs when one party to a legally binding agreement fails to fulfil their obligations without lawful excuse. English contract law provides a range of remedies, the most common of which is an award of damages — a sum of money intended to compensate the innocent party for their loss. Unlike some other legal systems, English law does not generally award punitive or exemplary damages for breach of contract; the aim is compensatory.
Types of Breach
English law recognises several types of breach, each with different consequences:
- Repudiatory breach: A breach so serious that it goes to the root of the contract. This entitles the innocent party to elect to accept the breach, bring the contract to an end, and sue for damages. Alternatively, the innocent party may affirm the contract and keep it alive — but beware, affirmation means losing the right to terminate later for the same breach.
- Anticipatory breach: One party communicates, before the time for performance arrives, that they will not perform. The innocent party may accept the anticipatory breach immediately and sue at once, without waiting for the date of performance to arrive.
- Minor/innominate term breach: A breach of a less fundamental term. The innocent party can claim damages but cannot terminate the contract unless the breach deprives them of substantially the whole benefit they were intended to receive.
The distinction between a condition (a term whose breach always entitles termination) and a warranty (whose breach only gives rise to damages) matters enormously. Classifying a term incorrectly can be costly.
The Principles of Damages: Hadley v Baxendale
The foundational case for contract damages in English law is Hadley v Baxendale [1854], which established the remoteness rule in two limbs:
- First limb (direct losses): Losses arising naturally from the breach according to the usual course of things. These are recoverable as of right.
- Second limb (special/consequential losses): Losses that do not arise naturally but were in the reasonable contemplation of both parties at the time of contracting, because the special circumstances were communicated. If the defendant did not know of the special circumstances, consequential losses are not recoverable.
This means a supplier who delivers defective goods may not be liable for a customer's lost profits if the customer never told them about the potential trading consequences of the failure to deliver. Always document and communicate the potential consequences of a breach at the time of contracting.
Expectation Damages vs Reliance Damages
Expectation damages (also called loss of bargain damages) put the claimant in the position they would have been in had the contract been properly performed. This is the default measure and is usually the most valuable. For example, if you contracted to buy goods for £10,000 which you intended to sell for £15,000 and the seller failed to deliver, your expectation loss is £5,000 in lost profit.
Reliance damages instead seek to recover wasted expenditure incurred in reliance on the contract being performed. This measure is useful where the expectation measure is hard to prove (e.g. speculative lost profits). You cannot generally recover both — you must elect between the two measures.
Duty to Mitigate
The innocent party has a duty to mitigate their loss — they must take reasonable steps to minimise the damage caused by the breach. The principle from Robinson v Harman (1848) confirms this: the claimant cannot sit back and allow losses to accumulate if they could reasonably have prevented them. However, the standard is reasonableness, not perfection — you are only required to take steps a reasonable person in your position would take, and you can recover the costs of reasonable mitigation steps even if they fail.
Penalty Clauses vs Liquidated Damages
Many commercial contracts include a liquidated damages (LD) clause specifying a fixed amount payable on breach. The law on whether LD clauses are enforceable was fundamentally revised by the Supreme Court in Cavendish Square Holding BV v Makdessi [2015]. The old "genuine pre-estimate of loss" test has been replaced by a broader question: is the clause a secondary obligation which imposes a detriment on the contract-breaker out of all proportion to any legitimate interest of the innocent party in the enforcement of the primary obligation?
In practice, this means that even LD clauses which are commercially justified — even if they exceed the actual loss — are more likely to be upheld now than before Makdessi. A clause is only void as a penalty if it is extravagant or unconscionable having regard to the legitimate interest being protected. This is a high bar to meet.
Restitutionary Remedies
Where a contract has been terminated for breach, the innocent party may seek restitution (recovery of money paid or value of services rendered) under the law of unjust enrichment, as an alternative to damages. This can be advantageous where the expectation measure is lower (e.g. in a loss-making contract). A claim in quantum meruit ("as much as they deserve") allows recovery of the reasonable value of services rendered, even where no price was agreed or the contract has been discharged.
Specific Performance and Injunctions
Damages are not always an adequate remedy. Courts may grant specific performance — an order compelling a party to perform their contractual obligations — in cases involving unique goods, land, or where damages would be inadequate. Specific performance is a discretionary equitable remedy and will not be granted where the court cannot supervise performance or where the contract requires personal services. An injunction may also restrain a threatened breach, particularly where the contract contains a negative covenant (an obligation not to do something).
Limitation Periods for Contract Claims
The Limitation Act 1980 provides that a claim in simple contract must be brought within 6 years from the date the cause of action accrued (the date of breach). For contracts made by deed (under seal), the limitation period is 12 years. Time starts running from the date of breach, not the date the innocent party discovered it — though in cases of fraud or deliberate concealment, the limitation period may be extended.
If you are out of time to bring a claim, it does not disappear — the right still exists but the defendant can plead limitation as a complete defence. Always act promptly and take legal advice well before the limitation deadline.
Part 36 Offers in Contract Disputes
In litigation, a Part 36 offer is a formal settlement offer made under CPR Part 36 that carries costs consequences. If you make a Part 36 offer which the defendant fails to beat at trial, you are entitled to an enhanced rate of interest (up to 10% above base rate), indemnity costs from the date of expiry of the offer, and an additional amount (up to £75,000). Making and responding to Part 36 offers strategically can significantly affect the economics of litigation.
Frequently Asked Questions
Breach of contract requires a valid contract between the parties, a failure to perform an obligation under that contract, and resulting loss. Negligence is a tort (civil wrong) that does not require a pre-existing contract — instead it requires a duty of care, a breach of that duty, and resulting damage. You can sometimes claim in both contract and tort simultaneously (for example, against a professional such as a solicitor or accountant who also owes duties of care). The remoteness rules differ: in contract (Hadley v Baxendale — reasonable contemplation at the time of contracting) versus in tort (Wagon Mound test — reasonable foreseeability at the time of the breach).
Generally, mental distress damages are not recoverable in contract law — the law takes a purely financial view of contractual compensation. However, there are recognised exceptions. In Farley v Skinner [2001], the House of Lords confirmed that where the very object of the contract was to provide pleasure, relaxation, or peace of mind (e.g. a holiday contract, a wedding photographer, a surveyor asked specifically to check for aircraft noise), non-pecuniary losses including disappointment and distress may be recoverable. These awards are typically modest — in the range of £3,000–£15,000.
If you continue to treat the contract as on foot after becoming aware of a repudiatory breach, you may be found to have affirmed the contract, which extinguishes your right to terminate for that breach. Affirmation can occur by conduct (e.g. continuing to accept deliveries, paying invoices, or demanding performance) as well as by express words. If you affirm, the contract continues and you can only terminate on a fresh, independent basis. This is a common and costly trap — if you suspect a repudiatory breach, take legal advice quickly before doing anything that could constitute affirmation.
If you bring a county court claim, the court has a discretion to award interest under s.69 County Courts Act 1984 at the rate of 8% per annum from the date of breach (or the date the money fell due) to the date of judgment. For commercial debts between businesses, the Late Payment of Commercial Debts (Interest) Act 1998 also applies, providing a statutory rate of 8% above the Bank of England base rate (currently approximately 12.75% depending on when you read this). In the High Court, interest is awarded under s.35A Senior Courts Act 1981 at a similar discretionary rate.
Yes. Under the Limitation Act 1980, you must issue court proceedings within 6 years from the date of breach for a simple contract, or 12 years for a contract made by deed. These deadlines are strict — if you miss them, your claim is statute-barred and the defendant can use limitation as a complete defence. The clock starts from the date of breach, not the date you discover it (though there are exceptions for latent damage, fraud, and concealment). Act promptly and do not delay seeking legal advice once you become aware of a potential breach.
Yes, lost profits can be claimed but they must satisfy the remoteness test in Hadley v Baxendale. Direct, natural lost profits (first limb) are recoverable as a matter of course. Exceptional or unusually high lost profits (second limb) are only recoverable if the defendant knew of the special circumstances that made such losses likely when the contract was formed. You must also prove the loss with reasonable certainty — speculative profits that depend on too many uncertain assumptions may not be awarded in full. Courts expect commercial claimants to keep proper financial records to support a loss of profits claim.