What is a liquidated damages clause?
A liquidated damages clause sets, in advance, a fixed sum payable if a party breaches the contract — commonly used for late delivery, construction delay or early termination. If it is a genuine pre-estimate of the likely loss, courts enforce it. If it is designed to punish or deter breach, it is a penalty and is unenforceable.
How do courts tell a penalty from liquidated damages?
They compare the stipulated sum to the loss the parties could reasonably have anticipated when they signed. If the sum is proportionate to expected loss, it is valid liquidated damages. If it is extravagant or out of all proportion to the greatest conceivable loss, it is a penalty. The label the parties used is not decisive — substance controls.
Does it matter if actual damages are hard to calculate?
Yes. A key reason to use liquidated damages is that real losses would be difficult or impossible to measure — such as reputational harm or lost opportunity. Where damages are genuinely hard to estimate, courts are more willing to uphold a reasonable fixed sum. Where losses are easy to calculate, a fixed sum draws more scrutiny.
What happens if a liquidated damages clause is a penalty?
The clause is struck down and the innocent party is left to prove its actual damages in the ordinary way. It does not necessarily lose all remedy, but it cannot rely on the fixed number. That is why the amount should be documented as a reasonable estimate of anticipated loss at the time of drafting.
Is there a difference between Canada and the US on penalties?
The core idea is the same — compensation is enforceable, punishment is not — but the tests differ in wording. Canada asks whether the sum was a genuine pre-estimate of loss at formation. US law (Restatement and UCC 2-718) asks whether the amount is reasonable in light of anticipated or actual loss and whether damages were hard to estimate.