The non-compete you signed is almost certainly void

California has refused to enforce non-competes since 1872, closed the “narrow restraint” loophole in 2008, and in 2024 made offering one a civil violation — with a required notice most employers never sent. If a piece of paper is keeping you in a job, read this.

The non-compete is American employment’s most successful bluff. Millions of workers stay put, turn down offers, or leave their field for a year because of a clause that — in California — has been unenforceable for a century and a half. The Legislature recently decided that unenforceable was not enough, and made the bluff itself unlawful. The details are worth five minutes, because the practical question is no longer whether the clause binds you. It is what the clause is worth to you.

1 · The rule, and how absolute it is

Business and Professions Code section 16600 voids every contract that restrains anyone from engaging in a lawful profession, trade, or business — with narrow statutory exceptions for people selling a business or dissolving a partnership.¹ The Supreme Court in Edwards rejected the invitation to read in a “narrow restraint” exception: partial restraints, reasonable restraints, one-year restraints — void alike.² This covers classic non-competes and reaches broad non-solicitation covenants that operate as restraints. It does not protect the theft of trade secrets, which remains unlawful under its own statutes — the subject employers invoke to make void clauses sound alive.

2 · What changed in 2024

Two statutes converted a defense into a sword. Section 16600.5 declares void non-competes unenforceable regardless of where or when they were signed — the Delaware choice-of-law workaround, closed — and makes it a civil violation for an employer to include such a term or attempt to enforce it, enforceable by the worker with damages, injunctive relief, and attorney’s fees.³ Section 16600.1 required employers to send individualized written notice to current and former employees whose agreements contained void non-compete terms, by a statutory deadline — a notice a great many employers never sent, which is itself an unfair-competition violation.⁴

Pause on what that means. The clause in your drawer is not merely a dead letter. It may be a claim.

3 · The letter that arrives anyway

Departing employees still receive the cease-and-desist: trade-secret language up front, the void covenant cited underneath, a copy to the new employer for chill. The choreography works only on the unadvised. The response — measured, statutory, and pointed about sections 16600.5 and fee exposure — usually ends the correspondence, because the sender’s lawyers know the law better than the sender does. If the new employer wavers, a short letter from counsel explaining California law tends to restore everyone’s nerve.

4 · The honest boundaries

Genuine trade-secret misappropriation is actionable — do not leave with the customer database, the pricing model, the source tree; our departing-well guidance is one conversation away. The sale-of-business exceptions are real: if you sold your company and covenanted not to compete, different rules apply. Duties of loyalty run while you are still employed — build your exit on your own time. The newest cousin is the stay-or-pay clause — training-repayment demands, “quit fees,” bonus clawbacks structured as penalties for leaving. Since 2026, California law presumes these unlawful as restraints on mobility, outside narrow exceptions such as genuine tuition for a transferable credential and certain upfront-bonus repayment terms agreed in advance.⁴ The invoice that arrives when you resign deserves the same skepticism as the covenant it replaced. And equity forfeiture provisions and out-of-state litigation gambits still get attempted; they are fights we know how to have, not reasons to stay.

5 · This week

Find the agreement and read what you actually signed. If a non-compete term is in it, note whether you ever received the statutory notice. If a threat letter arrives — or already sits in your inbox — do not answer it yourself, and do not let it cost you an offer in the meantime. Send it to us with the agreement. In most of these matters the leverage has quietly reversed, and the first party to understand that sets the terms.

Notes

1. Bus. & Prof. Code §§16600, 16601–16602.5.
2. Edwards v. Arthur Andersen LLP (2008) 44 Cal.4th 937.
3. Bus. & Prof. Code §16600.5.

4. Bus. & Prof. Code §16600.1.

5. A.B. 692 (2025), effective January 1, 2026 (employment contracts may not require workers to pay a debt, fee, or penalty for ending employment, with narrow statutory exceptions).

Related writing: What your old employer can say about you · Qui tam, in plain terms (on handling documents when you leave)

This article states California law as of its revision date and is analysis, not legal advice. Reading this site does not create an attorney-client relationship. Attorney advertising.