Breach of contract: what you need to show

A breach of contract claim generally asks four questions: was there a valid contract, did you do your part (or have a valid excuse for not doing it), did the other side fail to do theirs, and were you harmed as a result? Each is something you usually prove with everyday records — the agreement itself, messages, receipts, and invoices. The precise elements and available remedies are set by each state’s law, so treat the framework below as an orientation rather than a universal rule.

First, a contract that can be enforced

Before there can be a breach, there has to be a binding contract. California’s court self-help guidance describes a contract as an agreement — written, spoken, or implied from the situation — in which each side agrees to do, not do, or pay something. To be enforceable it generally needs a mutual agreement on the essential terms (what lawyers call a meeting of the minds), an offer and acceptance, an exchange of something of value, parties who have the capacity to agree, and a lawful purpose. Some contracts, such as those for real estate or that cannot be performed within a year, must be in writing.

Then the breach and its elements

Breach happens when a party to a valid contract fails to do what it agreed to do. Courts often break a claim into elements: a contract, the plaintiff’s own performance or a legally recognized excuse for non-performance, the defendant’s breach, and resulting harm. Framing this as “four elements” is a useful shorthand, but the number and wording differ by state. California’s civil jury instruction on breach of contract, for example, lists six: a contract, the plaintiff’s performance or excuse, any required conditions, the defendant’s failure to perform, harm, and a breach that “was a substantial factor in causing” that harm (CACI No. 303). Causation, the link between the breach and the harm, is frequently contested.

The other side may have defenses: that it actually performed, that you breached first or prevented it from performing, that the deal was too indefinite to enforce, or that the contract had to be in writing. These are fact-specific, and a defense that wins in one situation may fail in another.

Material breach, minor breach and repudiation

Not every breach has the same effect. A partial breach, also called an immaterial or minor breach, does not defeat the value of the contract. Both sides must keep performing, but the injured party can still sue for the damages the breach caused. A material breach goes further. In California, a material breach may discharge the other party from its duty to perform, and whether a breach is material is normally a question of fact. The case law collected with CACI No. 303 says it turns on “the importance or seriousness thereof and the probability of the injured party getting substantial performance.”

The related idea of substantial performance looks at the other side of the same question. Small departures from the contract’s terms may still count as performance if they fulfill the contract’s purpose. Courts weigh the harm caused by the deviation, the parties’ expectations, and the intent of the party who deviated. A departure that defeats the contract’s purpose is a material breach. Many states describe materiality in their own words, so check how your state frames it.

A breach can also come before performance is due. Repudiation happens when one party clearly states or shows that it will not perform, and its words or actions must reasonably be read to mean it will not or cannot perform. When that happens before the due date, it is called an anticipatory breach. It gives the injured party a right to damages and releases it from having to perform.

Harm and remedies

Contract law generally tries to put the non-breaching party in the position it would have been in if the contract had been performed — sometimes called the benefit of the bargain. What you can actually recover depends on the losses you can prove and on limits the law places on the types and amounts of damages. There is no single formula, and not every disappointment is a recoverable loss.

Types of contract damages

Money damages are the default remedy for breach, according to Cornell’s Wex summary of breach of contract. The main measure is expectation damages, meant to put you in as good a position as if the other side had fully performed. In broad terms, that is the difference between what was promised and what you got, plus consequential and incidental costs.

Consequential damages, also called special damages, cover harm that results naturally from the breach even if it does not flow directly from it. Incidental damages cover reasonable costs tied to the failed performance, such as expenses of inspecting, storing, returning, or replacing goods. Wex notes that incidental damages need not be written into the contract to be recoverable, as long as they were foreseeable when the contract was made.

Punitive damages are a different matter. Wex states that, unlike in tort cases, courts do not award punitive damages for breach of contract, and its punitive damages entry says they are not typically awarded on a contract claim. A contract may set liquidated damages in advance, but a court may refuse to enforce a clause that works as a penalty.

The duty to mitigate your losses

After a breach, you generally cannot sit back and let losses grow. Under the mitigation of damages doctrine, an injured party cannot recover damages it could have avoided through reasonable efforts. Once you learn the other side will not perform, you are expected to take reasonable steps to avoid further losses. A landlord whose tenant abandons a lease, for example, is expected to try to re-rent the property.

In California, the civil jury instruction on this point, CACI No. 358, tells jurors that a plaintiff is not entitled to damages for harm the defendant proves “could have avoided with reasonable efforts or expenditures.” Jurors judge those efforts in light of the circumstances, including whether the plaintiff could make them without undue risk or hardship. Reasonable amounts the plaintiff spent trying to avoid harm are included in the award.

Specific performance when money is not enough

Sometimes damages cannot fix the harm. Specific performance is a remedy in which a court orders a party to do what it promised, as closely as possible, rather than pay damages. It is an equitable remedy, and courts usually grant equitable relief only when a money remedy is inadequate. It comes up most often with real estate and rare or one-of-a-kind items, where no amount of money buys an exact substitute.

Evidence checklist

• The agreement. The signed contract, or messages and documents showing a verbal or implied one.
• Your performance. Proof you did your part — payments, deliveries, or readiness to perform.
• The breach. What the other side failed to do, and when.
• The harm. Receipts, invoices, and records tying your losses to the breach.
• Your mitigation. Records of the reasonable steps you took to limit your losses, and what they cost.
• Any repudiation. Messages or conduct showing the other side said it would not perform, and when.
• The deadline. Check the statute of limitations in your state before you rely on any timeframe.

Deadlines vary, so do not assume one

Breach-of-contract claims are subject to filing deadlines (statutes of limitations). As one labeled example, California generally allows four years to sue on a written contract and two years on an oral one, measured from the breach (California Courts self-help), but other states differ, and exceptions can shorten or extend the time. Do not treat any single period as universal. For how filing deadlines work across civil claims, see statutes of limitations for civil claims.

If a dispute ends in a deal, settlement agreements and releases explains what you give up when you sign, and how a civil lawsuit works covers the stages if it does not.

This is general legal information for consumers and small businesses, not legal advice, and it does not create a lawyer–client relationship; the elements, defenses, remedies, and deadlines depend on your state and facts, so consult a lawyer licensed where your dispute arises.