Missouri Non-Compete Law Update 2026

Treat everything here as a snapshot. The Missouri General Assembly can amend the relevant statutes in any session, courts continue to interpret and refine the rules, and federal policy on non-competes has been in flux. Because of that, this page repeatedly urges you to confirm the current rule before you rely on it. If you are about to sign a non-compete, leave a job, or enforce an agreement, verify the law as it reads at that moment — do not assume the framework described here is unchanged.

Missouri's non-compete framework (RSMo § 431.202)

As of 2026, Missouri's restrictive-covenant statute, RSMo § 431.202, sets the basic framework. The durable rule is that Missouri enforces non-compete agreements that are reasonable and that protect a legitimate business interest — not agreements whose only purpose is to shield an employer from ordinary competition.

Under that framework, a covenant is generally enforceable when it is no broader than necessary to protect an employer's recognized interests — principally its trade secrets and confidential business information and its customer or supplier relationships and goodwill — and when it is reasonable in time, geography, and the scope of activity it restricts. The statute also includes protections and limits for certain workers; for example, it does not make a non-compete enforceable against an employee who provides only secretarial or clerical services, and it treats certain employee-non-solicitation agreements limited to about a year as reasonable.

This statutory framework has been stable in its core for years, but "stable so far" is not "permanent." Confirm the current text of RSMo § 431.202 before relying on any specific limit, exclusion, or time period, because the legislature can revise it.

How Missouri courts evaluate enforceability

Missouri courts treat non-competes as restraints of trade that are enforceable only to the extent they are reasonable. As of 2026, the established analysis weighs three dimensions:

• Duration. How long the restriction lasts. Shorter terms (commonly around one year) are the easiest to enforce; longer terms face increasing scrutiny.
• Geographic scope. The territory must correspond to where the employer actually does business or where the employee had customer contact. A sweeping nationwide restriction for a regional business is typically overbroad.
• Scope of restricted activity. The restriction should be tied to work that would genuinely threaten the employer's trade secrets or customer relationships, not every job in the field.

A key durable feature of Missouri law is that courts can "blue-pencil" (modify) an overly broad non-compete — for instance, by shortening its duration or narrowing its geography — and enforce it as modified, rather than striking it down entirely. That does not give employers a license to overreach: a covenant that is unreasonable in its core purpose can still fail completely. These are judge-made principles that continue to evolve through new decisions, so a fresh case can shift the emphasis. Confirm how courts are applying the reasonableness test at the time your issue arises.

The federal picture (in flux)

The federal side of non-compete law has been unsettled in recent years and should be treated as a moving target. A proposed nationwide federal ban on most non-competes — advanced through the Federal Trade Commission — was challenged in court, and federal policy in this area has continued to shift through litigation and changing agency priorities. As of 2026, you should not assume any single federal rule is settled and controlling.

Because of that uncertainty, this page does not assert a specific current federal rule as established. The practical takeaway is to watch for federal developments: a future federal regulation, statute, or court decision could change how — or whether — non-competes are enforced, including for Missouri workers and employers. Anything described here as "federal" is federal, not Missouri law, and the two can move independently. Before relying on the federal picture, confirm its current status, because it may have changed since this page was written.

What to watch and how the law changes

Non-compete law changes through several channels, and knowing them helps you understand why "the current rule" can shift:

• Legislation. The Missouri General Assembly can amend RSMo § 431.202 — adjusting which workers are covered, what interests count as protectable, or what time periods are presumed reasonable — in any legislative session.
• Court decisions. Missouri appellate courts regularly interpret the statute and the reasonableness factors, and a single ruling can refine how duration, geography, or blue-penciling are handled.
• Federal action. Federal regulation or legislation, and the litigation around it, can reshape the national backdrop against which Missouri agreements operate.
• Profession-specific rules. Some fields have their own limits that can override the general analysis.

When any of these moves, the framework above can change without much public notice. Treat the rules on this page as "as of 2026" and re-check them whenever you have a real decision to make.

How to confirm the current rules

Because this area changes, confirm the live rules before you act:

• Read the current statute. Pull the present text of RSMo § 431.202 directly, rather than relying on a summary, to confirm the framework, any worker exclusions, and any time periods still read as described.
• Check for recent Missouri decisions. Courts continue to interpret the reasonableness factors and the blue-pencil power; recent opinions can change the practical answer.
• Track the federal status separately. Confirm where federal non-compete policy stands at the moment, since it has been in flux and is not settled.
• Review your actual agreement. The enforceability of a non-compete turns on its specific language and your specific facts — duration, geography, defined activities, consideration, and how you left the job.
• Confirm the date. Make sure the source you are relying on reflects the law as it currently reads, not an earlier version.

When to talk to a lawyer

Because non-compete disputes often move quickly — and because the framework can change between sessions and court terms — it is worth getting advice from a qualified Missouri attorney before you sign a covenant, leave a job that may trigger one, or try to enforce one. A lawyer can confirm the current state of the law, evaluate whether a specific agreement protects a legitimate interest and is reasonable in time, geography, and scope, and tell you how a court is likely to treat it today. This is especially important if you have received a cease-and-desist letter or been threatened with a lawsuit, where timing can matter in days rather than weeks.