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