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Liquidated damages

Liquidated damages is a engineering topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Liquidated damages rather than just read about it. In short: Liquidated damages, also referred to as liquidated and ascertained damages (LADs), are damages whose amount the parties designate during the formation of a contract for the injured party to collect as compensation upon a specific breach (e.g., late performance). This is most applicable where the damages are intangible.

Liquidated damages — main illustration
Liquidated damages — illustration

Key takeaways

  • Liquidated damages belongs to engineering; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Liquidated damages to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Liquidated damages from memory before moving on to harder problems.

Reference excerpt

Liquidated damages, also referred to as liquidated and ascertained damages (LADs), are damages whose amount the parties designate during the formation of a contract for the injured party to collect as compensation upon a specific breach (e.g., late performance). This is most applicable where the damages are intangible. An average of the likely costs which may be incurred in dealing with a breach may be used. Authority for the proposition that averaging is the appropriate approach may be taken from the case of English Hop Growers v Dering, 2 KB 174, CA (1928). Damages which are not certain or depend on unresolved contigencies may be referred to as unliquidated damages, and when damages are not predetermined/assessed in advance, then the amount recoverable is said to be "at large" (to be agreed or determined by a court or tribunal in the event of breach). The purpose of a liquidated damages clause is to increase certainty and avoid the legal costs of determining actual damages later if the contract is breached. Thus, they are most appropriate when (a) the parties can agree in advance on reasonable compensation for breach, but (b) the court would have a difficult time determining fair compensation at the time of breach. Under the common law, liquidated damages may not be set so high that they are penalty clauses rather than fair compensation.

Common law Generally, at common law, a liquidated damages clause will not be enforced if its purpose is to punish the party in breach rather than to compensate the injured party, in which case it is referred to as a penal or penalty clause. One reason for this is that the enforcement of the term would, in effect, require an equitable order of specific performance. However, courts sitting in equity will seek to achieve a fair result and will not enforce a term that will lead to the unjust enrichment of the enforcing party. For a liquidated damages clause to be upheld, two conditions must be met.

The amount of the damages identified must roughly approximate the damages likely to fall upon the party seeking the benefit of the term as assessed at the time when the agreement of contract was entered into. The damages must be sufficiently uncertain at the time the contract is made that such a clause will likely save both parties the future difficulty of estimating damages. Damages which are sufficiently uncertain may be referred to as unliquidated damages, and may be so categorized because they are not mathematically calculable or are subject to a contingency. Contracts in the NEC3 family use the term 'low service damages' (optional clause X.17) and generally include a Low Service Damages Schedule. Contracts under common law require there to have been some attempt to create an equal or reasonably proportionate quota between the damages made and the actual loss. Parties must not lose sight of the principal compensation and they must keep the time of execution and the difficulty of the calculations in mind when drafting the contract.

Example Anna Abbot agrees to lease a store-front to Bob Benson, from which Benson intends to sell jewellery. If Abbot breaches the contract by refusing to lease the store-front at the appointed time, it will be difficult to determine what profits Benson will have lost because the success of newly created small businesses is highly uncertain. This, therefore, would be an appropriate circumstance for Benson to insist upon a liquidated damages clause in case Abbot fails to perform.

The definition and scope extended In Australia, the definition of liquidated damages applies to the situations where upon the failure of a primary stipulation, imposes a detriment to the first party or a benefit to the second party by a secondary stipulation collateral to the primary stipulation (i.e. it does not have to be a breach).

Uniform Commercial Code In the United States, Section 2-718(1) of the Uniform Commercial Code provides that, in contracts for the sale of goods:

Damages for breach by either party may be liquidated in the agreement but only at an amount which is reasonable in the light of the anticipated or actual harm caused by the breach, the difficulties of proof of loss, and the inconvenience or nonfeasibility of otherwise obtaining an adequate remedy. A term fixing unreasonably large liquidated damages is void as a penalty. This largely mirrors the common law rule, which applies to other types of contracts under the law of most US states.

Case law In the case of construction contracts, courts have occasionally refused to enforce liquidated damages provisions, choosing to follow the doctrine of concurrent delay when both parties have contributed to the overall delay of the project. In the 2015 case of Unaoil Ltd v Leighton Offshore PTE Ltd., a Memorandum of Understanding (MoU) between the two parties detailed plans for Leighton to sub-contract work to Unaoil if they won a bid for a construction and engineering contract. The MoU included an agreement on liquidated damages. The MoU was amended on two occasions after it had been agreed, including an amendment to the amount to be paid to Unaoil. The High Court found that although the liquidated damages clause may have been based on a genuine pre-estimate of loss at the time the MoU was agreed, it had not been reviewed or amended at the times when the agreement was amended and therefore was unenforceable. The ruling means that when a contract is being amended, particularly if the amendment is relevant to the value of the contract, any liquidated damages clauses should be reviewed and amended if necessary. In Australia, questions regarding the interaction between liquidated damages clauses and claims for actual damages have arisen in construction disputes. In Cappello v Hammond & Simonds NSW Pty Ltd [2020] NSWSC 1021, the Supreme Court of New South Wales considered whether a nominal liquidated damages provision of $1 per day prevented an owner from recovering actual losses arising from delay. Historically, the English courts would not allow claims for liquidated damages to be set off against claims based on unliquidated damages, but case law following Hanak v. Green [1958] 2 QB 9 has established equitable principles which allow for set-off in such circumstances.

The law applied to bank and credit card charges

… excerpt ends here. Continue reading the full article.

Worked examples

Example 1 — a first encounter with Liquidated damages

Start with the simplest possible case. Write down what Liquidated damages claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In engineering, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Liquidated damages before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Liquidated damages ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Liquidated damages

In research
Liquidated damages appears in engineering research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Liquidated damages in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Liquidated damages is common in secondary-school and first-year university syllabi. It links to neighbouring topics Contract law, Facilities engineering, Judicial remedies, so understanding it makes those chapters shorter.
In everyday life
Look for Liquidated damages outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Liquidated damages in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Liquidated damages means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Liquidated damages out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Liquidated damages in simple terms?

Liquidated damages, also referred to as liquidated and ascertained damages (LADs), are damages whose amount the parties designate during the formation of a contract for the injured party to collect as compensation upon a specific breach (e.g., late performance). This is most applicable where the da…

Why does Liquidated damages matter?

Because it connects several engineering ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Liquidated damages?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Liquidated damages.

Tags

  • Contract law
  • Facilities engineering
  • Judicial remedies

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