Whether an employer can stop you from working for a client depends on what you signed and where you live. A former employer can restrict you from taking a job with one of their clients, but only through an enforceable contract clause or, in narrower circumstances, trade secret law. Many restrictions that look intimidating on the page fall apart in court, and the defenses available to you are stronger than most people assume.
Which Clause You Signed Decides What’s Restricted
Three types of clauses show up in most employment agreements, and each limits you differently. Figuring out which one applies is the starting point.
A non-compete clause is the broadest. It bars you from working for a competitor or client for a set period within a defined geographic area. If your agreement includes a non-compete that covers clients, your former employer has the strongest contractual basis to try to block the move.
A non-solicitation clause is narrower and, for that reason, more commonly enforced. It doesn’t prevent you from working for a client. It prevents you from reaching out to that client to redirect their business to your new employer. You can accept a job offer from the client; you just can’t actively pull the client’s business away from your former employer. Courts uphold these more readily than sweeping non-competes because they restrict specific conduct rather than your ability to earn a living in your field.
A non-disclosure agreement protects confidential information rather than restricting where you work. An NDA alone won’t stop you from joining a client. But if the new job would require you to use or reveal your former employer’s trade secrets, the NDA becomes relevant to whether a court will step in.
These clauses often appear together in the same contract and interact. An employer without an enforceable non-compete may still lean on a non-solicit or NDA to control what you do once you’re at the client company.
What Makes a Restriction Enforceable
Not every restrictive clause holds up. Courts weigh the employer’s interest against your ability to earn a living, and four factors drive most decisions.
Legitimate business interest. The employer must show the restriction protects something concrete: trade secrets, proprietary methods, or client relationships you had meaningful access to. A vague desire to prevent competition isn’t enough. In PepsiCo, Inc. v. Redmond, a federal appeals court upheld an injunction barring a former executive from joining a competitor because his deep knowledge of pricing, marketing, and distribution strategy would inevitably benefit the rival.1Justia. PepsiCo, Inc. v. Redmond, 54 F.3d 1262 (7th Cir. 1995) That case involved a senior executive with high-level strategic access. A junior employee with no client contact and no exposure to proprietary information faces a much weaker claim.
Reasonable scope. The restriction needs sensible boundaries in three dimensions: duration, geography, and the activities it covers. A two-year ban on working for any client in your metro area might be reasonable for a senior sales executive who personally managed those accounts. The same restriction on someone who handled back-office operations and never spoke to a client probably isn’t.
Adequate consideration. You need to have received something of value in exchange for agreeing to the restriction. If you signed a non-compete when you were hired, the job itself usually counts. If your employer handed you a non-compete after you were already working there, the picture gets murkier. A majority of states accept continued employment as sufficient. A significant minority require something additional, like a raise or bonus. A middle group requires that the employer keep you employed for a substantial period after you sign, sometimes around two years, for continued employment to count.
No undue hardship. Even a well-drafted restriction can fail if enforcing it would effectively prevent you from working in your field. Courts won’t destroy someone’s livelihood to protect a business advantage that could be handled through less drastic means.
How State Law Changes the Answer
Restrictive clause law is overwhelmingly state law, and the variation is dramatic. Four states ban non-compete agreements entirely, and more than 30 others impose meaningful limits. The same clause could be fully enforceable in one state and void on its face next door.
Income thresholds. A growing number of states prohibit non-competes for workers earning below a specified salary. Cutoffs range from roughly $75,000 to well over $100,000 annually. If you earn below your state’s threshold, a non-compete you signed may be unenforceable regardless of its other terms.
Garden leave. A few states require employers to compensate you during the restriction period as a condition of enforcing a non-compete. Where these laws apply, the employer typically must pay at least half your former salary for the duration of the restriction. If the payments stop, the restriction falls away.
Blue pencil rules. When a court finds a non-compete overbroad, what happens next depends on where you are. Some states throw out the entire clause: if any part is unreasonable, none of it is enforceable. Others let courts strike the offending language and enforce whatever remains. A third group lets courts rewrite the restriction to something reasonable and then enforce the revised version. An aggressive clause is a much bigger gamble in an “all or nothing” state than in one that will simply trim it down.
When They Can Block You Without a Non-Compete
Even if you never signed a restrictive clause, your former employer may still try to stop you through the “inevitable disclosure” doctrine. The theory: your new position would make it impossible to do your job without relying on or revealing their trade secrets, whether or not you intend to.
Courts that recognize the doctrine have used it to temporarily block employees from starting new roles with competitors or clients. It appeared prominently in PepsiCo v. Redmond, where the court found that the executive’s strategic knowledge made some degree of disclosure virtually unavoidable.1Justia. PepsiCo, Inc. v. Redmond, 54 F.3d 1262 (7th Cir. 1995)
Not every state accepts the doctrine. Critics argue that blocking someone based on what they might reveal, rather than what they actually did, effectively creates a non-compete no one agreed to. Where the doctrine does apply, it tends to be limited to senior executives with access to genuinely strategic information in intensely competitive markets.
Federal law provides employers a targeted alternative through the Defend Trade Secrets Act. Rather than restricting where you work, the DTSA lets companies sue in federal court when trade secrets are actually misappropriated. Courts can issue injunctions and award damages for actual losses, unjust enrichment, and, where the theft was willful, exemplary damages up to twice the base award.2Office of the Law Revision Counsel. 18 USC 1836 – Civil Proceedings
The DTSA includes a limitation that favors employees: an injunction under the act cannot prevent you from taking a new job. Any conditions on your employment must be based on evidence of actual or threatened misappropriation, not simply on the information you happen to know.2Office of the Law Revision Counsel. 18 USC 1836 – Civil Proceedings An employer can’t use the DTSA as a back-door non-compete.
No-Poach Agreements Between Your Employer and the Client
There’s another way an employer can effectively keep you from working for a client, and it has nothing to do with anything you signed. Some companies enter into “no-poach” or “no-hire” agreements with their clients, in which both sides agree not to recruit or hire each other’s workers. You might never know such an agreement exists until the client tells you they can’t bring you on.
These arrangements are a serious antitrust problem. In January 2025, the DOJ and FTC issued joint guidelines clarifying that agreements between competing employers not to recruit, solicit, or hire each other’s workers can be per se antitrust violations. The agreement itself is illegal regardless of whether it actually depressed anyone’s wages or cost anyone a job.3Federal Trade Commission. Antitrust Guidelines for Business Activities Affecting Workers
A full hiring ban isn’t required for the agreement to be unlawful. Even an agreement not to cold-call another company’s workers, or to require permission from the current employer before extending an offer, can qualify. The DOJ has pursued criminal felony charges in some cases.3Federal Trade Commission. Antitrust Guidelines for Business Activities Affecting Workers
The guidelines carve out one exception: when the restraint is part of a broader legitimate business collaboration like a joint venture, and is reasonably necessary to make that collaboration work, it may require a fuller analysis rather than being automatically illegal. A standalone agreement between a company and its client not to hire each other’s people, without any broader joint enterprise, is exactly what the agencies are targeting.
Defenses if Your Former Employer Comes After You
If your former employer threatens legal action, you aren’t necessarily stuck. Several defenses have real teeth, and employers often overestimate their position.
The restriction is overbroad. A clause that covers too wide a geography, lasts too long, or restricts activities beyond what’s needed to protect the employer’s legitimate interests may be unenforceable. In “all or nothing” states, an overbroad clause means the employer gets nothing. Even where courts can narrow the restriction, the employer faces the cost and uncertainty of litigating where the line falls.
You didn’t receive adequate consideration. If you signed a restrictive clause after you were already employed and got nothing meaningful in return, the clause may lack the consideration required to form a binding contract. This is often the strongest argument for people handed a non-compete mid-employment.
Your employer breached first. If the same contract obligates the employer to pay commissions, provide benefits, or deliver other promised compensation, and the employer failed to hold up its end, you may argue that the breach released you from your own obligations. Courts generally require the employer’s breach to involve a material term, not a minor technicality.
Unclean hands. If your employer engaged in illegal conduct that contributed to your departure, whether discrimination, retaliation for whistleblowing, or violations of labor law, a court may decline to enforce the restriction on equitable grounds. Asking a court to enforce a contract against someone you mistreated is a tough sell.
The information wasn’t actually confidential. Employers frequently claim client lists are trade secrets. But if the company published client names on its website, featured client testimonials in marketing materials, or won the client through a public bidding process, the confidentiality argument collapses. It comes up constantly, and it rarely survives once the marketing team’s output is introduced as evidence.
The client came to you. A non-solicitation clause bars you from reaching out to clients, not from responding when a client contacts you voluntarily. If a client sought you out at your new position without any prompting, that distinction can defeat a non-solicit claim. Document how the contact originated. It matters.
What Happens if You Violate a Restriction
If an employer decides to enforce, the first move is usually seeking a preliminary injunction: a court order barring you from the restricted activity while the case plays out. The employer has to show a likelihood of winning on the merits, a likelihood of irreparable harm without the order, that the balance of hardships favors enforcement, and that the injunction serves the public interest.
Courts take the irreparable-harm requirement seriously. The employer must show that money damages alone can’t fix the problem, typically because client relationships are being damaged in ways that can’t be quantified or because trade secret exposure can’t be undone. An employer that waits weeks or months after learning about the violation before filing can lose this argument, since the delay undercuts the claim of urgency.
If the injunction issues, you may be barred from working for the client or engaging in the restricted activities for the remainder of the non-compete period. Violating a court order carries contempt penalties on top of everything else, which is where a manageable business dispute can become a personal crisis.
Beyond injunctive relief, employers can pursue provable financial losses: revenue lost to the departing employee’s competition, the cost of replacing client relationships, or expenses incurred to protect compromised confidential information. Under the DTSA, courts can also award damages for unjust enrichment and, where the conduct was willful and malicious, exemplary damages up to double the base amount.2Office of the Law Revision Counsel. 18 USC 1836 – Civil Proceedings
Some employment agreements include a predetermined dollar amount you’d owe for breaching the restrictive clause. Courts enforce these liquidated damages provisions only if the amount represents a reasonable estimate of the employer’s likely harm. A clause setting an outsized figure designed to intimidate rather than approximate real damages may be struck down as an unenforceable penalty.
Attorney’s fees can also come into play. Under the DTSA, if a trade secret claim was brought in bad faith or the misappropriation was willful, the court can award reasonable attorney’s fees to the prevailing party.2Office of the Law Revision Counsel. 18 USC 1836 – Civil Proceedings That cuts both ways. An employer that files a meritless claim to bully a former employee into compliance may end up paying your legal bills.