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Business Litigation · Contract Disputes

Can You Sue Someone for Breach of Contract in California?

By Yuki Jin / October 10, 2026

Business relationships often begin with trust. Two companies sign an agreement, a vendor promises to deliver products, or a business partner agrees to provide services in exchange for payment.

But what happens when one party fails to fulfill its obligations?

In California, a breach of contract may give the injured party the right to pursue legal remedies, including monetary damages. However, not every broken promise automatically results in a successful lawsuit.

Understanding how breach of contract claims work can help California business owners evaluate their options before a disagreement becomes expensive litigation.

1. What Constitutes a Breach of Contract?

A breach of contract generally occurs when one party fails to perform a contractual obligation without a legally sufficient excuse.

Common examples include:

  • A customer refuses to pay for services already performed.
  • A supplier fails to deliver products by an agreed deadline.
  • A contractor abandons a project before completion.
  • A business fails to provide services required under an agreement.
  • A party violates a confidentiality or exclusivity provision.

A breach can involve a written agreement, an oral agreement, or, in some circumstances, a contract implied by the parties' conduct.

However, whether an enforceable contract exists depends on the facts and applicable law.

2. What Must You Prove in a California Breach of Contract Lawsuit?

A typical California breach of contract claim requires proof of four elements:

First, the existence of a contract. The parties must have entered into a legally enforceable agreement.

Second, the plaintiff's performance or excuse for nonperformance. The party bringing the lawsuit generally must show that it fulfilled its contractual obligations or was legally excused from doing so.

Third, the defendant's breach. The other party must have failed to perform a contractual obligation.

Fourth, resulting damages. The plaintiff must establish that the breach caused compensable harm.

These requirements may appear straightforward, but disputes frequently arise over the meaning of contractual language, whether performance was required, and the amount of recoverable damages.

3. Can You Recover Money for Breach of Contract?

Under California Civil Code section 3300, contract damages generally seek to compensate the injured party for harm proximately caused by the breach, or harm that would likely result from the breach in the ordinary course of events.

Depending on the circumstances, recoverable damages may include:

  • Unpaid amounts owed under a contract
  • Reasonable costs incurred because of the breach
  • Lost profits that can be established with reasonable certainty
  • Other foreseeable losses caused by the breach

For example, suppose a supplier agrees to deliver materials for $50,000 but fails to deliver them. If the buyer reasonably purchases substitute materials for $60,000, the additional $10,000 may be recoverable, subject to applicable law, the contractual terms, and other relevant facts.

California contract law generally seeks to compensate actual losses rather than punish the breaching party. Punitive damages ordinarily are not recoverable for a simple breach of contract without an independent basis for tort liability.

4. Can You Recover Attorneys' Fees?

One important question business owners should ask before filing a lawsuit is whether attorneys' fees can be recovered.

California generally follows the American Rule, meaning each party pays its own attorneys' fees unless a contract or applicable statute provides otherwise.

A contract may contain a provision stating that the prevailing party in litigation is entitled to recover reasonable attorneys' fees.

California Civil Code section 1717 can also make certain contractual attorneys' fee provisions reciprocal in actions on a contract.

Before initiating litigation, business owners should carefully review the agreement's attorneys' fee provision and consider the potential cost of both winning and losing.

5. How Long Do You Have to File a Breach of Contract Lawsuit?

California generally provides:

  • Four years for an action upon a written contract under Code of Civil Procedure section 337.
  • Two years for an action upon an oral contract under Code of Civil Procedure section 339.

However, determining when the limitations period begins, whether an exception applies, and whether the claim is governed by a different statute can be complicated.

Certain sales-of-goods transactions, for example, may be governed by California Commercial Code section 2725.

Business owners should not assume that the applicable deadline is always two or four years.

6. Should You File a Lawsuit Immediately?

Not necessarily.

Litigation can be expensive, time-consuming, and disruptive to business operations.

Before filing a lawsuit, a business owner may wish to consider:

  • Reviewing the contract. Determine whether the agreement requires notice, an opportunity to cure, mediation, or arbitration before litigation.
  • Preserving evidence. Maintain signed agreements, invoices, emails, text messages, payment records, and relevant communications.
  • Evaluating damages. Determine the actual financial losses and whether they can be supported by reliable evidence.
  • Considering settlement. A negotiated resolution may preserve business relationships and reduce legal expenses.
  • Assessing collectability. Even a favorable judgment may have limited practical value if the opposing party lacks sufficient assets to satisfy it.

The appropriate strategy depends on the amount in dispute, the strength of the evidence, contractual provisions, and the business objectives of the parties.

7. What If the Other Party Claims You Breached First?

Business disputes are rarely one-sided.

A defendant may argue that the plaintiff failed to perform its own obligations, that the contract was modified, or that performance was excused.

The defendant may also assert affirmative defenses or file a cross-complaint.

For this reason, a careful review of the entire contractual relationship is often necessary before deciding whether to initiate litigation.

Final Thoughts

A breach of contract does not automatically mean that a lawsuit is the best solution.

For California business owners, the more important questions are whether an enforceable agreement exists, what obligations were breached, what damages can be established, and whether litigation makes economic sense.

Understanding these issues early can help businesses protect their interests and make more informed decisions.

Disclaimer

This article provides general educational information about California law and does not constitute legal advice. Reading this article does not create an attorney-client relationship. Legal outcomes depend on the specific facts and applicable law.

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