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Contracts

Breach of Contract

A failure to perform a duty required by a valid contract without a legally recognized excuse.

Plain-English definition

Breach of contract is the basic claim that one side did not do what the agreement required. The dispute often turns on what the contract actually says, whether performance was due, whether nonperformance was material, and what damages flowed from the breach.

How it works

A contract plaintiff usually must prove contract formation, plaintiff performance or excuse, defendant breach, and damages. State law controls the details.

Why it matters

Contract cases dominate commercial dockets. The written agreement, amendments, course of dealing, and damages records usually decide the case.

Related terms

Not legal advice. Definitions are for general reference. Consult an attorney before relying on any term in a real case.