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LawyerLand › Legal Glossary

Non-Compete Agreement

A promise not to work for a competitor or start a competing business for a period after a relationship ends - enforceable in some states, sharply limited in others, and void in a few.

Informational only - this is not legal advice. These definitions explain general legal vocabulary in plain English. They are not advice about your situation, reading them creates no attorney-client relationship, and the law differs from state to state and changes over time. For advice you can rely on, speak to a lawyer licensed in your state.

Looking for a lawyer rather than a definition? Skip to the state-by-state list of Business Law firms.

What it means

A non-compete is a contract term, usually in an employment agreement or the sale of a business, in which one party promises not to compete with the other for a period of time within a geographic area or a line of work. Its purpose from the employer's side is to protect customer relationships, confidential information and the investment made in training; from the worker's side it is a restriction on earning a living, which is why courts have always treated it with suspicion.

Whether it can be enforced depends almost entirely on which state's law applies. Some states enforce a non-compete only if it is no broader than necessary to protect a legitimate business interest, and will narrow or refuse one that reaches too far in time, territory or scope. Several states refuse to enforce employee non-competes at all, treating them as void regardless of how reasonable the terms look, while still allowing restrictions connected to the sale of a business. A growing number of states bar them for workers below an income threshold or require advance notice before one is signed.

A federal rule adopted in 2024 that would have banned most non-competes nationwide was set aside by a federal court before it took effect, so there is no national rule and state law continues to govern. Non-competes are also distinct from non-solicitation and confidentiality agreements, which restrict less and are enforced more readily; an agreement often contains all three.

Where this comes from

Non-competes are governed by state statute and case law, and the states diverge more on this question than on most: California, for instance, declares contracts restraining a lawful profession, trade or business void at Cal. Bus. & Prof. Code § 16600, with narrow exceptions for the sale of a business. The Federal Trade Commission's 2024 rule, 16 C.F.R. part 910, was held unlawful and set aside by a federal district court in Ryan LLC v. FTC (N.D. Tex. 2024) and never took effect.

When people hire a lawyer for this

Before signing, the question is what it actually stops you from doing and under which state's law, since a choice-of-law clause may point somewhere unexpected. After leaving, the question is whether the clause is enforceable at all where you now work - and a demand letter from a former employer is not an answer to that, though it is often written as if it were.

Worried about the cost? A lawyer can be hired for one part of a case only (limited-scope representation), may be paid from what a claim recovers (contingency fee), or may be free through a pro bono program or legal aid; a court can also waive its own filing fees.

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Related terms

Other entries in the same area of law, each written from the same primary sources.

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  • DBA (Fictitious Business Name)A registered trade name under which a person or company does business - which tells the public who is behind the name and does nothing else.
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  • Green Card (Lawful Permanent Residence)How a non-citizen becomes a lawful permanent resident of the United States: the family, employment and other routes, the petition and the application, and why the order of the steps matters.
  • H-1B Specialty Occupation VisaThe employer-sponsored temporary work visa for jobs that require a specialized degree: the labor condition application, the annual cap and lottery, the employer's wage duties, and what happens if the job ends.
  • Indemnification and Hold Harmless ClausesThe contract provision under which one party agrees to cover another's losses and defend it against claims - what it usually reaches, the state laws that void some of it, and why insurance is the other half of the promise.
  • Independent Contractor vs EmployeeTwo legal categories of worker with very different consequences for taxes, overtime and liability - and a label in a contract does not settle which one applies.
  • Insurer's Duty to DefendThe promise in a liability insurance policy to pay for the policyholder's lawyer when they are sued, why it is broader than the duty to pay a judgment, and what happens under a reservation of rights.
  • K-1 Fiance(e) VisaHow a U.S. citizen brings a foreign fiance(e) to the United States to marry, the in-person meeting and disclosure rules, what must happen after arrival, and the alternative of marrying abroad first.
  • Letter of Intent (LOI) and Term SheetThe preliminary document that sets out the main terms of a deal before the contract is drafted - which parts of it are usually binding, which are not, and how a "non-binding" letter still creates obligations.
  • Limited Liability Company (LLC)A business form that shields its owners from most business debts while staying simpler to run than a corporation.
  • Naturalization (Becoming a U.S. Citizen)How a lawful permanent resident becomes a U.S. citizen: the residence, presence, character, English and civics requirements, the interview, and what happens after a denial.
  • Non-Disclosure Agreement (NDA)A contract restricting what one or both sides may do with information the other shares - and, unlike trade secret law, it binds only the person who signed it.
  • Operating AgreementThe private contract among an LLC's owners that decides who controls the company, how money is split, and what happens when someone leaves - or the state's default rules decide it for them.
  • Personal GuaranteeA promise by an individual - usually a business owner - to pay a company's debt personally if the company does not, which puts the owner's own assets behind the loan or lease regardless of the entity's liability shield.
  • Piercing the Corporate VeilThe exception under which a court holds an owner personally liable for a company's debts, despite the limited liability the company normally provides.
  • Registered AgentThe person or company a business entity must designate to receive lawsuits and official notices on its behalf - and the address at which a default judgment can quietly begin.
  • Removal (Deportation) DefenseWhat happens when the government seeks to remove a non-citizen from the United States, the hearing they are entitled to, and the forms of relief an immigration judge can grant.
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  • U Visa for Crime VictimsImmigration status for non-citizen victims of certain crimes who help the police or prosecutors, how the law enforcement certification works, and the related T visa and VAWA protections.
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Part of the LawyerLand plain-English legal glossary. Definitions are written from primary sources - statutes and court rules - and each entry states the authority it rests on, or says plainly when the doctrine is state law with no national rule.
If you cannot afford a lawyer, civil legal aid programs provide free help with many of these problems: civil legal aid programs by state.
Related free reference tools: statute of limitations for a personal-injury claim, by state, quoted from each state's official text - part of LawyerLand's legal reference tools.
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