Frustration

Frustration is the common law doctrine by which a contract, validly formed and not avoided for any anterior vitiating factor, is automatically discharged because a supervening event has made performance impossible, illegal, or radically different from that undertaken. It belongs after performance and breach in the structure of the Part IB Contract course because it asks a different question from breach: not whether a party has failed to perform a continuing obligation, but whether the obligation has ceased to bind at all.

The doctrine is exceptional. English law begins from pacta sunt servanda: a party who makes an unqualified promise normally bears the risk that performance becomes harder, costlier, or less profitable. Frustration is not a general jurisdiction to relieve hardship. It is a narrowly controlled safety valve for cases in which the contractual adventure, understood objectively, has been destroyed or fundamentally transformed by an event for which neither party is legally responsible and for which the contract makes no sufficient provision.

The core modern formulation is Lord Radcliffe’s in Davis Contractors Ltd v Fareham UDC: frustration occurs where, without default of either party, performance would be a thing radically different from that undertaken. That formula is important but not self-applying. It requires close attention to the allocation of risk in the contract, the parties’ assumptions, the foreseeability of the event, the nature of the supervening occurrence, and the extent to which the contract can still substantially be performed.

The principal categories are familiar: destruction or unavailability of the subject matter; death or incapacity in contracts for personal performance; supervening illegality; cancellation of the foundation of the contract; and extreme delay. But these are illustrations, not closed compartments. Conversely, many events that students are tempted to call frustrating are not: increased expense, reduced profit, ordinary delay, bad bargains, self-induced impediments, and events already provided for by express force majeure or risk-allocation clauses.

The consequences are equally important. At common law, frustration discharges both parties automatically for the future. Accrued rights and liabilities generally remain. The harshness of that position, exposed most clearly by Chandler v Webster and corrected in part by Fibrosa, led to the Law Reform (Frustrated Contracts) Act 1943. The Act adjusts payments, expenses, and non-money benefits after frustration. It is remedial, not definitional: it does not decide whether frustration occurred.

For Cambridge purposes, the best answers avoid treating frustration as a list of case outcomes. The examiner wants a disciplined sequence: construction and express allocation first; identification of the alleged supervening event; comparison between promised and actual performance; inquiry into fault, foreseeability and assumption of risk; then consequences under the 1943 Act. The strongest essays also notice the theoretical tension between implied term, construction, and externally imposed rule.

The classical common law was austere. In Paradine v Jane (1647) Aleyn 26, a lessee remained liable for rent although he had been dispossessed by an invading army. The report expressed the older principle that where a party creates a duty by his own contract, he must perform it notwithstanding accident, because he might have provided against the contingency. This was not merely technical. It reflected a conception of contract as voluntary assumption of absolute liability. If a party wished to make performance conditional on the continued existence of circumstances, he had to say so.

That severity became increasingly difficult to maintain in the nineteenth century as contracts became more complex and dependent on particular persons, things, venues, licences, or legal regimes. Taylor v Caldwell supplied the decisive shift. A music hall hired for concerts burned down before the dates fixed for performance. Blackburn J held that performance depended on the continued existence of the hall and that an implied condition excused both parties when the hall perished without fault. The language was still one of implied term: the parties were taken to have contracted on the basis that the subject matter would continue to exist. Historically, this preserved continuity with freedom of contract. Doctrinally, however, it opened the way to judicial discharge where literal performance had become impossible.

The coronation cases then stretched the doctrine beyond physical impossibility. In Krell v Henry, rooms were hired to view the coronation procession of Edward VII. When the procession was cancelled, the rooms still existed and could still be occupied; performance in a literal sense was possible. The Court of Appeal nevertheless held the contract frustrated because the procession was the foundation of the bargain. Herne Bay Steamboat Co v Hutton, decided the same year, marked the limit. A vessel hired for a naval review and a day’s cruise was not discharged when the review was cancelled: the cruise remained available and the common venture had not wholly failed. The contrast remains an examination staple because it shows that frustration concerns the foundation of the bargain, not disappointed motive.

The early twentieth century added supervening illegality and war cases. In Metropolitan Water Board v Dick, Kerr & Co, a government order requiring a contractor to stop work and sell plant interrupted a long construction contract so fundamentally that it was discharged. In Fibrosa, war made performance with a Polish company illegal after Germany’s invasion of Poland. These cases also exposed the remedial problem: if the contract simply ends, what happens to money paid in advance and expenditure incurred in reliance on the bargain?

Before 1943, the common law answer was unsatisfactory. Chandler v Webster held that losses lay where they fell at the time of frustration, so advance payments already due could remain payable even though the promised exchange had collapsed. Fibrosa mitigated that result through restitution where there was a total failure of consideration, but only incompletely. The Law Reform (Frustrated Contracts) Act 1943 was enacted to replace that crude scheme with a discretionary statutory adjustment.

The modern history is one of restraint. Davis Contractors rejected frustration where a building contract became slower and more expensive because labour was scarce. Tsakiroglou rejected frustration where the closure of the Suez Canal made a voyage much longer but did not change the commercial nature of the undertaking. National Carriers recognised that leases can in principle be frustrated, but refused discharge on the facts. The Sea Angel restated the doctrine as multi-factorial and emphasised that it must not be lightly invoked. The modern law therefore combines a real but narrow power of discharge with a strong presumption that contractual risks remain where the parties have placed them.

1. Frustration operates only after formation. It must be distinguished from common mistake. Mistake concerns an invalidating assumption at the time of contracting; frustration concerns a supervening event after a valid contract has been made. The boundary is sometimes fine: destruction of specific goods before contract may be mistake or statutory avoidance under sale of goods legislation; destruction afterwards may be frustration. In a problem question, fix the date of contract and the date of the relevant event before doing anything else.

1. The event must be supervening and not attributable to the party relying on it. Frustration cannot be self-induced. If the alleged impossibility results from a party’s own election, breach, negligence, or allocation of scarce resources, the doctrine is unavailable. Maritime cases are especially important here. In Maritime National Fish Ltd v Ocean Trawlers Ltd, the charterer had licences for only some trawlers and chose not to allocate one to the chartered vessel. The Privy Council treated the impossibility as self-induced. The point is not moral blame alone; it is that a party who controls the impediment has not suffered an external destruction of the contractual adventure.

1. The contract must not itself make sufficient provision for the event. Express force majeure clauses, price adjustment clauses, extension-of-time provisions, hardship clauses, cancellation rights and war-risk clauses usually precede the common law doctrine. Frustration fills a gap; it does not override an agreed allocation of risk. A force majeure clause may be broad enough to cover the event, in which case the answer is contractual construction, not frustration. Conversely, the presence of a clause does not necessarily exclude frustration for events outside its scope, but it may show that the parties contemplated a range of contingencies and deliberately allocated risk in a particular way.

The cases are best understood as a set of contrasts. Taylor v Caldwell is the paradigm of destruction of subject matter. The Surrey Gardens music hall was essential to the promised concerts; without it, the contract could not sensibly be performed. The case introduced the language of an implied condition, although later law has moved towards construction and rule-based analysis.

Krell v Henry and Herne Bay Steamboat Co v Hutton form the classic pair. In Krell, the room was hired for dates and times corresponding to the coronation procession, and the surrounding circumstances made that procession the foundation of the transaction. Once the procession was cancelled, the room’s ordinary use was beside the point. In Herne Bay, however, the vessel could still be used for a cruise round the fleet. The naval review was important, but not the sole foundation of the bargain. The lesson is subtle: frustration of purpose requires more than disappointment of one party’s motive; it requires failure of the common contractual basis.

Fibrosa is pivotal both for wartime illegality and restitution. A contract for machinery to be delivered to Poland became unlawful after the German occupation. The House of Lords held the contract frustrated and permitted recovery of the prepayment because there had been total failure of consideration. The case discredited the severity of Chandler v Webster and prompted the 1943 Act.

Davis Contractors is the modern anchor. Labour shortages and delay made performance much more onerous for the builder, but the same houses were still to be built. The House of Lords refused to turn commercial hardship into discharge. The decision is also theoretically important because Lord Radcliffe rejected a purely artificial implied-term analysis and spoke instead of the law recognising radical difference.

Tsakiroglou shows that alternative performance may defeat frustration. Closure of the Suez Canal did not frustrate a contract for sale involving shipment from Sudan to Hamburg, because shipment round the Cape was commercially and legally possible. The route was longer and dearer, but the sale obligation was not transformed. The case is a useful antidote to over-generous impossibility arguments.

The Eugenia and Maritime National Fish illustrate self-induced frustration. If a party’s own choice or breach brings about the alleged impossibility, he cannot rely on the doctrine. National Carriers v Panalpina is important for leases: the House of Lords rejected the old proposition that leases could never be frustrated, but the 20-month interruption in a 10-year lease was insufficient. The Sea Angel gathers the modern law into a multi-factorial inquiry, stressing construction, risk allocation, foreseeability, fault, and the severity of the change.

See practice questions section below.

See further reading section below.