The doctrine of frustration acts as a critical mitigation of the common law’s traditional insistence on the literal performance of absolute promises. While originally the law followed the strict “absolute contracts” rule from Paradine v Jane (1647)—holding that a change in circumstances, even one making performance impossible, did not excuse a promisor—the modern doctrine provides an absolving power that kills the contract automatically and discharges parties from further liability without damages.
The Foundations and the “Radically Different” Test
The modern doctrine originated in Taylor v Caldwell (1863), where the court moved away from absolute contracts by implying a condition that a “particular specified thing” essential to the contract must continue to exist. However, modern courts no longer rely on the “implied term” fiction. Instead, as established in Davis Contractors Ltd v Fareham UDC (1956), frustration occurs when a supervening event makes the contractual obligation “radically different” from what was originally undertaken.
This is often a “multi-factorial” inquiry, requiring the court to consider the contract’s terms, its matrix or context, the parties’ expectations and contemplations as to risk, the nature of the supervening event, and the possibility of future performance in the new circumstances.
The Role of Construction and Force Majeure
The starting point is always the terms of the contract itself. The doctrine of frustration has limited practical significance because it does not apply where express provision has been made for the event in the contract. In commercial practice, force majeure and hardship clauses typically regulate events that impede performance.
However, a force majeure clause is primarily intended to cover events resolvable within a relatively short timeframe. In Metropolitan Water Board v Dick Kerr and Co (1918), the House of Lords held that even a very broad extension-of-time clause covering delays “whatsoever and howsoever occasioned” did not prevent frustration when a government order “vitally and fundamentally” changed the contract’s conditions.
The Hurdle of Foreseeability
Generally, an event that was foreseeable at the time of entry into the contract does not operate to frustrate it, as the parties are assumed to have allocated that risk. In The Eugenia (1964), Lord Denning suggested a more robust view: that the only essential factor is whether the parties made provision for the event. He argued that if they foresaw a danger but made no provision, the doctrine could still apply if performance became radically different. Academic commentary, however, suggests that high foreseeability usually supports an inference of risk assumption, which excludes frustration.
The Strictness of “Self-Induced” Frustration
A party cannot invoke frustration if the event was caused by their own conduct. The “essence of frustration” is that it must not be due to the “act or election” of the party relying on it.
- In Maritime National Fish Ltd v Ocean Trawlers Ltd (1935), frustration failed because the party chose not to allocate limited licenses to the specific vessel in the contract.
- In The ‘Super Servant Two’ (1990), a carrier who had the option to use one of two vessels could not claim frustration after one sank, because their subsequent decision to use the remaining vessel for other contracts was a human choice that broke the chain of causation.
Distinguishing Frustration of Purpose
Frustration of purpose is particularly difficult to prove, as courts want to avoid providing an “escape route” for bad bargains.
- Krell v Henry (1903): The contract to hire a flat was frustrated because seeing the coronation procession was the “foundation of the contract” for both parties due to the room’s “peculiar suitability”.
- Herne Bay Steam Boat Co v Hutton (1903): Conversely, hiring a boat to see a naval review was not frustrated because the review was only the hirer’s motive; the fleet (the subject matter) was still there, and the venture was the hirer’s risk alone.
The Remedial Framework: The 1943 Act
While frustration occurs automatically, the financial consequences are governed by the Law Reform (Frustrated Contracts) Act 1943.
- Section 1(2): Money paid is recoverable, and money payable ceases to be payable. The court has broad discretion to allow a party to retain or recover expenses incurred before discharge if it is “just to do so”.
- Section 1(3): If a party obtained a “valuable benefit” (other than money) before discharge, the court can award a “just sum”. In BP v Hunt, Robert Goff J identified “benefit” as the “end product” of the services. Critically, if the frustrating event (like a fire) destroys that end product, the value of the benefit may be reduced to nil, leaving the performing party with no claim.
Comparison with International Regimes
English law is notably less liberal than other systems. For example, the Principles of European Contract Law (PECL) allow courts to adapt the contract to distribute losses and gains equitably in cases of “hardship”. English law rejects this, insisting that parties must either uphold their bargain or see it automatically terminated, preferring the merit of certainty over the flexibility of judicial adjustment.
Recent Instances of Force Majeure Clauses Being Actioned
The practical application of force majeure clauses has been extensively tested by the geopolitical and health crises of the 2020s, demonstrating that their success often hinges on specific wording and the strict requirement for the event to be the sole cause of non-performance.
The 2026 Middle East Energy Crisis
In early 2026, the escalation of conflict involving Iran led to some of the most significant energy supply disruptions in decades.
- The Leviathan Gas Field: In March 2026, Chevron declared force majeure at Israel’s Leviathan natural gas field. This followed a direct order from the Israeli Energy Ministry to suspend production on security grounds after regional military strikes. As Israel’s largest gas field, the shutdown forced Egypt and Jordan to seek alternative LNG imports to offset the loss of contracted volumes.
- Strait of Hormuz Disruptions: Following the partial closure of the Strait of Hormuz in March 2026, QatarEnergy declared force majeure on LNG deliveries to multiple counterparties. This crisis was triggered by military operations that physically prevented the transit of commercial vessels, leading major Gulf producers to suspend shipments as tankers were either struck or detained.
- Infrastructure Damage: The conflict also resulted in “extensive damage” to Qatar’s Ras Laffan terminal, the world’s largest LNG facility. This damage is expected to reduce export capacity by approximately 17% for up to five years, providing a clear example of physical impossibility as a ground for force majeure.
Aviation Leases and the COVID-19 Pandemic
The COVID-19 pandemic provided a major test for whether government-mandated groundings constituted force majeure or frustration in long-term contracts.
- In cases such as Salam Air SAOC v LATAM Airlines Group plc (2020) and Wilmington Trust SP Services (Dublin) Ltd v SpiceJet Ltd (2021), the English courts rejected claims that aviation leases had been frustrated or that force majeure excused payment.
- The courts reasoned that the lessees had accepted broad “hell or high water” payment obligations and had thus assumed the risk of the aircraft being unavailable.
- Furthermore, the duration of the pandemic’s disruption (roughly 18 months) was held to be insufficient to discharge contracts intended to run for six to ten years.
Sanctions and the Foreseeability Trap
Recent rulings have emphasised that an event must be unforeseeable to qualify for force majeure protection, even if performance is made difficult by government action.
- Iranian Supreme Court (2026): In a significant ruling regarding a car import dispute, the Supreme Court of Iran held that an importer could not rely on international sanctions as a force majeure event.
- The court ruled that since sanctions against the Islamic Republic had been in place for many years, they were a foreseeable risk that traders should have anticipated. Consequently, the lack of unforeseeability invalidated the force majeure claim.
- This illustrates a growing judicial trend: where a risk is well-known—such as geopolitical tension in the Persian Gulf—parties may be expected to have allocated that risk expressly in their contract rather than relying on a general force majeure clause.