A non-compete agreement between companies is a contract where one business agrees not to compete with another for a set time, within a defined market, or against a particular product line. These contracts show up most often in acquisitions, joint ventures, and supply relationships, where one party has shared something valuable — customer lists, proprietary processes, pricing data — and needs assurance the other party won’t turn around and use it against them. Two things govern whether the agreement actually works: state contract law decides if it’s enforceable, and federal antitrust law decides if signing it was legal in the first place.
What Makes the Agreement Enforceable
Courts apply the rule of reason, asking whether the restriction protects a legitimate business interest. The company trying to enforce the agreement has to show that interest exists. Trade secrets, confidential operational data, and customer relationships built through years of investment all qualify. An agreement with no real interest behind it reads as an attempt to suppress competition, and courts reject those.
Scope is the second test, measured in both geography and time. A five-year restriction covering the three states where the companies actually operate will fare far better than a ten-year nationwide ban imposed by a regional business. The restrictions should be proportional to what’s being protected. A logistics company protecting its routing algorithms can keep a partner from using those algorithms in the partner’s existing service territory, but probably cannot bar the partner from the logistics business nationwide.
Vague drafting is the most common failure point. If the contract doesn’t define what counts as “competing,” what information is protected, and where the restrictions apply, the parties end up litigating meaning rather than enforcing terms. Precise definitions are what separate an enforceable agreement from an expensive piece of paper.
What Happens When Terms Are Too Broad
A court that finds the restrictions unreasonable has two possible responses, and which one it picks depends on the state. Roughly 35 states follow some version of the blue-pencil doctrine, giving judges authority to narrow the offending terms and enforce whatever remains reasonable. In some of those states, judges can only strike severable clauses; in others, they can actively rewrite the duration, geography, or scope.
About eight states refuse to reform overbroad agreements at all. If any restriction is unreasonable in those jurisdictions, the entire non-compete fails. That all-or-nothing framework forces conservative drafting from the start. The remaining states have unsettled law, which creates real uncertainty for companies operating across multiple jurisdictions.
Antitrust Exposure Under the Sherman Act
The sharper risk is federal, not state. Section 1 of the Sherman Act makes any contract that unreasonably restrains trade a federal felony.1Office of the Law Revision Counsel. 15 USC 1 – Trusts, Etc., in Restraint of Trade Illegal; Penalty Whether an inter-company non-compete crosses that line turns on one distinction: is the restriction ancillary to a legitimate business transaction, or is it a standalone agreement to divide a market?
Ancillary restraints tied to a real joint venture, business sale, or partnership are evaluated under the rule of reason for their overall competitive effect. A reasonable non-compete attached to a legitimate deal will usually survive. Naked restraints are treated differently. When two competitors simply agree not to enter each other’s markets, or agree to fix prices, that arrangement is illegal on its face. The government doesn’t have to prove actual harm to competition — the agreement itself is the violation.
Penalties are severe. A corporation convicted under Section 1 faces fines up to $100 million. Individual executives can be fined up to $1 million and sentenced to as much as 10 years in federal prison.1Office of the Law Revision Counsel. 15 USC 1 – Trusts, Etc., in Restraint of Trade Illegal; Penalty Antitrust counsel should be involved early whenever the agreement is between actual or potential competitors.
No-Poach Clauses
Hiring restrictions between companies have become a particular enforcement priority. The Department of Justice treats no-poach deals as horizontal market allocations that suppress wages and limit worker mobility. In April 2025, the Antitrust Division secured its first criminal trial conviction in a labor-market case, finding a home healthcare company owner guilty of conspiring to fix wages for nurses in Las Vegas. The DOJ and FTC jointly issued updated Antitrust Guidelines for Business Activities Affecting Workers in January 2025.2Federal Trade Commission. Antitrust Guidelines for Business Activities Affecting Workers
Any hiring restriction between companies has to be narrowly connected to a legitimate collaborative project. A joint venture where shared employees have access to both parties’ confidential information can justify a non-solicit tied to those specific people. A blanket agreement between competitors not to hire each other’s staff, with no underlying transaction behind it, is the kind of naked restraint that produces criminal charges.
Business Sales and Acquisitions
The sale of a business is where non-compete agreements get the broadest judicial protection. A buyer paying for goodwill, customer relationships, and brand reputation needs assurance that the seller won’t open a competing operation across the street and recapture those customers. Without the restriction, the seller could gut the deal’s value using the very relationships the buyer just paid for.
Courts evaluate these restrictions more permissively than employment non-competes because the seller has received substantial compensation in exchange. Duration commonly runs between three and seven years depending on industry and transaction size. Geographic restrictions can legitimately cover the entire footprint of the acquired company’s operations. A North American business can face a North America-wide restriction; a regional service business faces a correspondingly narrower limit.
Buyers often require these clauses to secure acquisition financing, since lenders want revenue streams protected after closing. The terms are typically written into the purchase agreement itself. Breach can result in injunctive relief, monetary damages reflecting lost profits, or both.
Hart-Scott-Rodino Filings
Large acquisitions that include non-compete provisions may trigger federal premerger notification. For 2026, the minimum transaction size requiring an HSR filing is $133.9 million. Filing fees start at $35,000 and scale up to $2.46 million for deals worth $5.869 billion or more.3Federal Trade Commission. New HSR Thresholds and Filing Fees for 2026 The threshold that applies is the one in effect when the transaction closes. Both the fees and the mandatory waiting period belong in the deal timeline.
Joint Ventures and Supply Contracts
Ongoing commercial relationships create a different risk profile than a one-time sale. When two companies collaborate, they share manufacturing processes, customer data, pricing strategies, and sourcing contacts. A non-compete here keeps one partner from using that shared knowledge to compete against the party that provided it.
These agreements are typically narrower than business-sale non-competes because the underlying relationship is more limited. A supply contract for custom software might bar the client from reselling that software to competitors, but it wouldn’t prevent the client from operating in its industry. The restriction should match the information actually shared and the harm that misuse would cause.
Non-solicitation provisions commonly travel with these agreements, preventing one company from recruiting the other’s specialized personnel who were involved in the collaboration. When the parties are actual competitors, antitrust review becomes essential — these arrangements sit near the line where legitimate protection ends and illegal market allocation begins.
Choice of Law When Parties Are in Different States
Enforceability varies dramatically by state. California essentially refuses to enforce non-competes; Florida and Texas are far more receptive. When the two companies are headquartered in different states, the choice-of-law clause becomes a critical drafting decision, and companies sometimes designate the law of a friendly state.
Courts generally honor those provisions, with two limits. The chosen state must have a substantial relationship to the parties or the transaction. A company can’t pick Delaware law just because Delaware is favorable if neither party has any real connection there, though courts have upheld Delaware choice-of-law when the buyer was incorporated in the state. The second limit is public policy: a court may refuse to apply the chosen state’s law if doing so would violate a fundamental policy of the state with a closer connection to the dispute. If the agreement would be void where the restricted company operates, a judge there may decline to enforce it regardless of what the contract says.
Commercial non-competes tied to business sales get more deference on these questions than employment non-competes, because courts treat a negotiated sale between sophisticated parties as a context where chosen law should generally stand. Even so, multi-state deals should be drafted with an eye toward enforceability in the states most likely to see a breach.
Tax Treatment of Non-Compete Payments
Payments for a non-compete carry specific federal tax consequences on both sides. The paying company — usually the buyer in an acquisition — treats the payment as a capital expenditure amortized over 15 years, regardless of the non-compete’s actual duration. A buyer who pays $1.5 million for a five-year non-compete still spreads the deduction over 15 years. Covenants not to compete entered into in connection with a business acquisition are Section 197 intangible assets.4Office of the Law Revision Counsel. 26 USC 197 – Amortization of Goodwill and Certain Other Intangibles
The company or individual receiving the payment reports it as ordinary income rather than capital gains, which is taxed at higher rates for most recipients. The purchase price allocation between non-compete, goodwill, and other assets is a negotiating point in nearly every acquisition, since buyer and seller have opposite tax incentives. The IRS scrutinizes allocations that appear structured to shift tax burdens.
Remedies When a Company Breaches
Injunctive relief is the most common remedy — a court order directing the breaching company to stop the competing activity. Getting one requires showing irreparable harm, meaning competitive damage that money alone can’t fix. Lost customer relationships and exposed trade secrets are the strongest grounds. Courts also weigh the harm an injunction would cause the breaching party and how the dispute affects the public interest.
Timing matters. A business that discovers a breach but waits months to seek relief undermines its own argument that the harm is urgent. Courts read delay as evidence that the damage isn’t as serious as claimed. Filing promptly after discovering competitive activity preserves the strongest legal position.
Monetary damages are also available, typically measured by lost profits attributable to the breach or costs incurred in responding to the competition. Some agreements include liquidated damages clauses setting a predetermined payout. Courts enforce those as long as the amount is a reasonable estimate of likely harm. If the predetermined figure is grossly disproportionate to actual damages, a court will treat it as an unenforceable penalty.
A Note on the FTC Non-Compete Ban
The FTC issued a final rule in April 2024 that would have banned most non-compete agreements nationwide.5Federal Trade Commission. FTC Announces Rule Banning Noncompetes A federal district court in Texas set the rule aside in August 2024, applying its decision nationwide, and the FTC later withdrew its appeals.6Justia Law. Ryan LLC v Federal Trade Commission Even if the rule had survived, it was designed to protect workers and would not have applied to non-competes between businesses. Non-competes connected to bona fide business sales were explicitly excluded. Inter-company non-competes face no current federal regulatory ban, though state contract law and federal antitrust rules apply in full.