The English approach to contractual penalties stands in marked contrast to that prevailing across continental European jurisdictions. Where many legal systems permit parties broad latitude in specifying monetary consequences for non-performance, the courts of England and Wales will strike down stipulations whose primary purpose is punitive rather than compensatory.

For practitioners operating in the sphere of cross-border commerce — particularly those advising on commodity supply agreements governed by GAFTA or FOSFA terms — a working knowledge of the penalty doctrine proves indispensable. Such contracts frequently incorporate escalated interest formulations to address delayed payments or shipments.

Penalties are not recoverable

Courts in England refuse to enforce provisions that amount to punishments for breach. Once a clause crosses the threshold into penalty territory, it becomes void and unenforceable. The innocent party must instead demonstrate and recover the harm it actually suffered.

For nearly a hundred years, judges applied the framework set out in Dunlop Pneumatic Tyre Co Ltd v New Garage & Motor Co Ltd [1915] AC 79. Under that precedent, a stipulation attracted the penal label if the sum payable appeared “extravagant and unconscionable” relative to any credible estimate of loss. Importantly, the judgment clarified that deploying the word “penalty” in the contract text does not, by itself, render the provision penal.

The Supreme Court fundamentally reworked this doctrine in 2015 through its joint rulings in Cavendish Square Holding BV v Talal El Makdessi and ParkingEye Limited v Beavis [2015] UKSC 67.

The modern approach to penalties in English law

The Supreme Court articulated a revised two-limb enquiry. First: does the party seeking to enforce the clause possess a legitimate interest in securing performance, an interest that transcends the mere recovery of financial loss? Second: assuming such an interest exists, does the liability stipulated bear any reasonable proportion to it?

A clause falls foul of the penalty rule only when the consequence imposed vastly exceeds what can be justified by reference to the creditor’s genuine commercial concerns.

The ParkingEye v Beavis litigation provides a practical illustration. A motorist exceeded the complimentary two-hour parking window by fifty-six minutes and incurred an £85 charge. The Supreme Court validated this sum. Why? The shopping centre operator demonstrated a real commercial imperative: maintaining space availability for genuine customers. Because the economic detriment from an occupied bay resists precise calculation, and because £85 aligns with municipal parking enforcement penalties and creates meaningful deterrence, the charge survived scrutiny. A modest figure would fail to serve the operator’s lawful purpose.

When high rates of interest may nevertheless be valid

How does the reformulated test apply to interest clauses addressing tardy payment? Here the landscape differs from parking enforcement: the cost of credit over time admits of ready measurement through prevailing market rates.

The judgment in Cargill International Trading v Uttam Galva Steels [2019] EWHC 476 (Comm) offers instructive guidance. Cargill extended a US$61.8 million facility to Uttam, an Indian steel producer. The financing agreement stipulated default compensation calculated at one-month LIBOR plus 12 per cent, yielding approximately 13–14 per cent per annum at the material time. When Uttam defaulted, Cargill pursued roughly US$23.7 million in interest.

Uttam contended that LIBOR plus 12 per cent constituted an unenforceable penalty. The High Court rejected this submission and upheld the rate.

What persuaded the court? Cargill marshaled compelling evidence. The facility carried no security, inherently demanding a risk premium. Cargill demonstrated that charging LIBOR plus 12 per cent reflected prevailing commercial practice for Indian entities comparable to Uttam, particularly given the tribulations facing India’s steel sector in 2015. Crucially, this rate actually fell below Uttam’s own average funding costs at the time of default.

Mr Justice Bryan emphasised that benchmarking against market rates constitutes the most probative evidence. Cargill established that 13–14 per cent per annum was not arbitrary but represented genuine commercial pricing for unsecured loans to similarly-situated companies operating under comparable conditions.

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When evidence does not help: Ahuja v Victorygame

The outcome in Ahuja Investments v Victorygame [2021] EWHC 2382 (Ch) could scarcely have differed more. A loan contract between two commercial entities specified compound default interest at 12 per cent per month — a figure exceeding 200 per cent per annum.

Both parties were sophisticated commercial actors, both enjoyed legal representation, and both consented to this rate. One might assume the arrangement would stand. The High Court nevertheless declared 12 per cent per month an invalid penalty.

Why did the clause fail? The record contained no evidentiary basis for such an extreme rate. The court expressly noted that nothing in the materials justified that level of default interest, and that no legitimate commercial interest beyond punishment for breach emerged from the evidence.

The judgment underscored that interest rates may legitimately exceed market benchmarks, but only where evidence supports the deviation. The mere fact that two commercial parties, each advised by lawyers, agreed to a rate surpassing 200 per cent per annum does not confer validity.

Interest at 0.3 per cent per day

Let us now apply these principles to a formulation commonly encountered in international commodity supply contracts, particularly those involving counterparties from Eastern European jurisdictions.

Numerous agreements for the sale of grain, metals, or petroleum products incorporate language of the following type:

At first glance, 0.3 per cent per day appears modest. But simple arithmetic reveals otherwise: 0.3 per cent × 365 days = 109.5 per cent per annum.

Consider relevant benchmarks:

  • The Late Payment of Commercial Debts Act 1998 prescribes 8 per cent above the Bank of England base rate;
  • Typical awards in GAFTA and LMAA arbitrations range from 5 to 8 per cent per annum;
  • The rate upheld in Cargill: 13–14 per cent per annum;
  • The clause under discussion: 109.5 per cent per annum.

A seller might invoke legitimate commercial imperatives: safeguarding cash flow, managing commodity price volatility, covering financing costs, preventing supply chain disruption. Yet these remain generic assertions. The lesson from Cargill is unambiguous: particularized evidence is essential. This means financial documentation establishing the seller’s cost of capital, proof of market losses stemming from similar payment delays, calculations tying the 109.5 per cent rate to actual expenses. In practice, such evidence rarely exists because the clause typically originates from a standard template rather than bespoke negotiation.

Even assuming some cognizable commercial interest, a rate of 109.5 per cent per annum stands eight to twenty times higher than any defensible benchmark. This bears no resemblance to Cargill, where 13–14 per cent aligned with market conditions. It more closely resembles Ahuja, where manifest disproportionality in the absence of supporting evidence proved fatal.

Unlike ParkingEye, where quantifying the detriment from an occupied space presented genuine difficulty, the cost of money over time is readily ascertainable. Interest rates are matters of public record. If the Late Payment Act specifies 8 per cent above base rate, and typical arbitral tribunals award 5–8 per cent, then 109.5 per cent defies justification.

Will supplementary arguments salvage the clause? The reciprocal nature of the provision—applying the identical rate to the seller for late delivery — affords no defence. The penalty doctrine evaluates each stipulation on its own merits. That the template originated with the buyer is equally immaterial — Ahuja made clear that mutual consent cannot substitute for evidence of proportionality.

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Practical guidance

What implications flow from this case law for those drafting or challenging such provisions?

For parties incorporating elevated interest rates into contracts, the central lesson is straightforward: merely stipulating a higher rate and securing the counterparty’s agreement proves insufficient. When the matter reaches a court or arbitral panel, you must substantiate the rate’s reasonableness. This necessitates gathering market data on interest rates for analogous transactions, documenting your own cost of capital, and analysing the counterparty’s credit risk. Cargill demonstrates that even a relatively moderate rate of 13–14 per cent per annum required robust evidence of market alignment. Absent such proof, even a lower rate risks invalidation.

Consider alternatives to astronomical interest rates. Rather than a single extreme figure (such as 0.3 per cent daily), contemplate a blended approach: moderate interest (10–15 per cent per annum) coupled with a right to terminate following a defined default period, and the ability to seek reimbursement of documented financing costs. Such architecture proves more defensible against penalty challenges.

For parties challenging penalty provisions, the case law illuminates a clear strategy. First, analyse proportionality: benchmark the contractual rate against typical arbitral awards in your industry (for commodity trading, this means 5–8 per cent) and against commercial credit costs. Where the divergence is substantial—five, ten, or twenty times—you occupy strong ground.

Second, demand evidence of legitimate commercial interest. Generic statements regarding “liquidity requirements” or “market risks” will not suffice. Require specific financial documentation, calculations linking the rate to actual costs, and proof of special circumstances justifying the premium. The teaching of Ahuja is plain: “we agreed” carries no weight absent evidence of justification.

Conclusions

The penalty doctrine in English contract law has undergone substantial evolution. The contemporary framework established in Cavendish v Makdessi and ParkingEye v Beavis [2015] affords contracting parties greater latitude than the historic Dunlop test, but demands rigorous justification.

The governing principles are readily stated. A penalty clause is void regardless of agreement if it fails the proportionality test. Legitimate commercial interest must be established through specific evidence, not merely asserted in the abstract. Proportionality is assessed through comparison with market rates and statutory benchmarks. High rates of interest—exceeding 20 per cent per annum — demand particular justification, and rates approaching or surpassing 100 per cent will almost invariably be deemed penalties.

The Cargill and Ahuja decisions illustrate these principles in operation. In Cargill, a rate of 13–14 per cent per annum survived challenge because evidence established its alignment with market norms for unsecured lending. In Ahuja, a rate of 12 per cent per month (exceeding 280 per cent per annum) was struck down. The court observed that such a fourfold increase over the base rate (3 per cent per month) was “manifestly extravagant” absent evidence of market justification.

Mastering these principles enables practitioners to draft provisions capable of withstanding judicial scrutiny, to mount effective challenges against disproportionate penalty clauses, and to avoid expensive litigation through proper contract structuring.

If you require legal advice concerning penalty clauses in international contracts, analysis of contractual provisions, or representation in GAFTA, FOSFA, or LMAA proceedings, please contact me by email, Telegram, or WhatsApp.

Danil Hristich
Author

English solicitor and Ukrainian advocate. I specialise in Gafta and FOSFA arbitration, maritime law (shipping), and international trade.