Penalty Clause

What is a Penalty Clause in Contract Law?

Quick Definition

A penalty clause is a term in a contract that imposes a financial consequence on a party for breaching the agreement. It is designed to deter breach rather than to compensate for actual loss. Courts will not enforce penalty clauses if they are considered excessive or punitive.

In Context

Penalty clauses often appear in commercial contracts where parties want to discourage late performance or non-performance. However, English courts distinguish between a genuine pre-estimate of loss (a liquidated damages clause) and a penalty. In Cavendish Square Holding BV v Makdessi, the Supreme Court clarified that a clause will not be struck down merely because it is harsh, but because it is out of proportion to the legitimate interest of the innocent party in enforcing the contract. For example, a clause requiring a supplier to pay £10,000 for a one-day delay in delivering goods worth £500 may be treated as a penalty and therefore unenforceable. Courts look at the substance of the clause rather than its label, ensuring parties are not using contract terms to impose unfair punishment.

See Also

• Liquidated Damages

• Breach of Contract

• Damages

Learn More

Explore our Contract Law Notes for deeper case law, examples, and revision tips.