What it means
A contract sets out promises and the consequences of not keeping them, and a breach is simply a broken promise that the law will take seriously. The failure can be a missed delivery, a missed payment, goods that do not match the agreed specification, or an act that makes performance impossible.
Lawyers separate minor breaches from material ones because the remedy differs sharply. A minor breach entitles you to compensation for the actual loss but you still have to perform your own side, while a material breach lets you treat the contract as ended, walk away, and claim damages as well.
For a finance team, the number that matters is the measurable loss rather than the legal label. Damages are normally calculated to put you where full performance would have left you, which in practice means the extra cost of buying elsewhere, the profit lost on sales you could not fulfil, and direct expenses caused by the failure.
You are almost always expected to mitigate, meaning to take reasonable steps to limit your own loss rather than letting it accumulate. If a supplier fails and you could have sourced replacements at a modest premium but chose to sit idle for three months, a court is unlikely to award the full three months of lost profit.
Many contracts pre-agree the consequence through a liquidated damages clause, a fixed sum per day or per unit of failure, which avoids arguing about loss after the event. Others cap liability at the contract value or exclude indirect loss entirely, so the recoverable amount can end up far smaller than the commercial damage you actually suffered.
In practice
Real-world examples
Example 1
A marketing agency signs a twelve-month retainer and stops delivering work in month four while continuing to invoice. The client treats this as a material breach, ends the contract, and recovers the fees paid for the unworked months plus the extra cost of hiring a replacement agency at short notice.
Example 2
A commercial tenant stops paying rent eight months into a five-year lease and vacates the unit. The landlord cannot simply claim the whole remaining rent, because it must mitigate by marketing the unit, so the claim becomes the rent lost during the void period plus the reletting costs.
Example 3
A software vendor promises an integration will be live by a fixed date and misses it by five months. The contract contains a liquidated damages clause of $2,000 per week of delay, so the customer deducts a pre-agreed amount from the next invoice without needing to prove its actual loss.
Think of it
Imagine ordering a custom-built dining table for a dinner party. If the carpenter delivers it two hours late, that is a minor delay. If they deliver four wooden legs and a pile of sawdust on the morning of the party, that is a total breach of the agreement.
Formula
Calculation
Damages = (Cost of obtaining the promised performance elsewhere - Contract cost of that performance) + Direct costs caused by the breach - Losses you could reasonably have avoided
A furniture retailer contracts a supplier for 20,000 chair frames at $12 each, a total of $240,000. The supplier delivers only 12,000 frames and then stops, leaving a shortfall of 8,000 frames that would have cost 8,000 x $12 = $96,000 under the contract.
The retailer sources the missing 8,000 frames from another manufacturer at $15 each, a cost of 8,000 x $15 = $120,000. The excess cost is $120,000 - $96,000 = $24,000. Expedited freight to keep the shop floor stocked adds a further $6,000, so total recoverable damages come to $24,000 + $6,000 = $30,000.Case study
Seen in the real world
Harrow Lane Foods is a fictional, illustrative ready meal producer that signed a two-year agreement to supply a supermarket chain at a fixed price. Nine months in, its main packaging supplier failed to deliver, and Harrow Lane missed three weekly deliveries to the supermarket.
The supermarket treated the missed deliveries as a breach and applied a service level deduction of $45,000. Harrow Lane in turn claimed against its packaging supplier, but discovered that the supply agreement capped liability at the value of the goods ordered in the preceding three months, which was $18,000.
The finance director drew two conclusions for the illustrative case file. Liability caps in supplier contracts should be checked against the downstream penalties the business is exposed to, and single sourcing on a critical input turns an ordinary supplier problem into a customer relationship problem.
Watch out
Common mistakes
- Assuming any breach lets you cancel the contract. Only a material breach gives you that right, and walking away over a minor one can turn you into the party in breach.
- Ignoring the duty to mitigate. Sitting on a loss you could reasonably have reduced usually shrinks what you can recover, sometimes to almost nothing.
- Skipping the liability cap when signing. Firms routinely agree caps and exclusions that leave them unable to recover the losses a failure would genuinely cause.
Questions
People also ask
What is the difference between damages and a penalty?
Damages compensate for a real loss, while a clause designed purely to punish the other party is often unenforceable, which is why liquidated damages have to be a genuine advance estimate of loss.
Does a breach always end up in court?
Rarely, because most disputes settle or go through the escalation and mediation steps written into the contract, and the cost of litigation usually exceeds the amount in dispute for smaller claims.
Should we book an expected claim as income?
Not until recovery is virtually certain, because accounting rules treat an uncertain claim in your favour as a contingent asset that is disclosed rather than recognised.