Missouri At-Will Employment Laws: Exceptions and Your Rights

Missouri is an at-will employment state, meaning an employer can terminate a worker at any time, for any reason, or for no reason at all, and employees may leave without notice. The at-will rule is the default under Missouri common law, but several important exceptions limit when a firing is lawful.

Is Missouri an at-will employment state?

Missouri follows the at-will employment doctrine as a matter of common law. Under this rule, an employer may discharge an employee at any time, for any lawful reason or no reason, without incurring liability. Likewise, an employee may resign at any time without legal consequence. The at-will presumption applies to virtually all private-sector employment relationships in Missouri unless a specific statute, contract, or recognized exception modifies it. Employees working under a collective bargaining agreement or an individual written contract for a definite term are not purely at-will, because those instruments specify the conditions of termination. For the vast majority of Missouri workers, however, at-will is the starting point, and understanding the exceptions is what determines whether a particular discharge crosses the legal line.

Exceptions to at-will employment in Missouri

Missouri courts recognize two of the three common-law exceptions to at-will employment. The third, the implied covenant of good faith and fair dealing, has not been adopted.

Public-policy exception, now codified by statute. Missouri courts developed a common-law public-policy tort for wrongful discharge, and the Missouri Supreme Court held in Fleshner v. Pepose Vision Institute, 304 S.W.3d 81 (Mo. banc 2010), that an employer may not discharge an employee for refusing to violate a clear mandate of public policy or for reporting wrongdoing (whistleblowing) to an appropriate authority, applying a "contributing factor" causation standard. That standard no longer controls. Missouri's whistleblower statute, Mo. Rev. Stat. sec. 285.575, effective August 28, 2017, states that it "is intended to codify the existing common law exceptions to the at-will employment doctrine and to limit their future expansion by the courts," and that it, "in addition to chapter 213 and chapter 287, shall provide the exclusive remedy for any and all claims of unlawful employment practices."

For conduct on or after that date, a whistleblower discharge claim is brought under the statute rather than as a common-law tort, and the statute is stricter than Fleshner in two ways. On causation, the employee must show the protected status was the "motivating factor," which the statute defines as having "actually played a role in the adverse decision or action and had a determinative influence on the adverse decision or action." That is a higher bar than the contributing-factor test. On damages, a protected person has a private right of action for actual damages but not for punitive damages: recovery is limited to back pay and reimbursement of medical bills directly related to the violation, doubled as liquidated damages only where the employee proves by clear and convincing evidence that the employer's conduct was outrageous because of evil motive or reckless indifference. Court costs and reasonable attorney fees are available to a prevailing party.

The statute reaches employers with six or more employees for each working day in each of twenty or more calendar weeks in the current or preceding calendar year, and a "protected person" is an employee who reported an unlawful act of the employer to proper authorities, reported serious misconduct violating a clear mandate of public policy to the employer, or refused to carry out a directive that would violate the law. Retaliation for exercising workers' compensation rights is handled separately, by Mo. Rev. Stat. sec. 287.780, which since the same 2017 effective date also requires "motivating factor" causation. Employees who believe they were fired in retaliation for reporting illegal conduct should consult an attorney promptly, as deadlines for filing are short.

Implied-contract exception: narrow. In Johnson v. McDonnell Douglas Corp., 745 S.W.2d 661 (Mo. banc 1988), the Missouri Supreme Court expressly declined to adopt a general handbook exception to at-will employment. The court held that the company's handbook was merely an informational statement of self-imposed policies, made no contractual offer, and did not bind the employer, so no contract was formed. A later Missouri Court of Appeals decision, Morrow v. Hallmark Cards, Inc. (2008), cited Johnson for the rule that employer policies unilaterally imposed on at-will employees are not enforceable contracts. In practice, a standard employee handbook, standing alone, does not create an implied contract in Missouri. An implied contract can still arise, but only from a genuine, mutual, bargained-for promise, such as a specific offer of continued employment on defined terms with real consideration flowing both ways, not from unilateral policy language an employer can change at will. A clear and conspicuous at-will disclaimer further defeats any such claim. Employees should review their offer letters and any individually negotiated commitments carefully, but should not assume a general handbook alone displaces at-will status.

Covenant of good faith and fair dealing: Missouri does NOT recognize an implied covenant of good faith and fair dealing as an independent limit on the employer's right to terminate at will. Courts have declined to import this covenant into at-will employment relationships, so an employee cannot claim wrongful discharge simply because the employer acted in bad faith or without honest dealing in connection with the termination.

Is Missouri a right-to-work state?

Missouri is NOT a right-to-work state. Missouri's legislature passed a right-to-work law in 2017 that would have prohibited requiring workers to join a union or pay union fees as a condition of employment. However, before the law could take effect, Missouri voters rejected it by a wide margin via Proposition A in the August 2018 referendum. Because voters repealed the statute before it ever took effect, Missouri has never operated under a right-to-work regime. As of 2026, 26 states have right-to-work laws in effect; Michigan's repeal, effective February 13, 2024, reduced the total from 27.

It is important to separate right-to-work from at-will employment. They are entirely distinct legal concepts. Right-to-work governs union membership and dues: in right-to-work states, workers cannot be compelled to join a union or pay union fees as a condition of keeping their job. At-will employment governs the grounds for termination: it says an employer may fire a worker for any lawful reason or no reason. A state can be at-will without being right-to-work (Missouri is an example) and vice versa. The two concepts address different aspects of the employment relationship and are controlled by different bodies of law.

What at-will employment does not allow in Missouri

Even in a fully at-will state, federal and state law prohibit certain reasons for termination. These protections apply to all Missouri employers covered by the relevant statutes and cannot be waived by the at-will presumption.

Federal protections establish a floor in every state. Title VII of the Civil Rights Act of 1964 prohibits firing based on race, color, religion, sex, or national origin. The Age Discrimination in Employment Act (ADEA) protects workers 40 and older from age-based termination. The Americans with Disabilities Act (ADA) prohibits discharge because of a disability or perceived disability. The Genetic Information Nondiscrimination Act (GINA) bars using genetic information in employment decisions. The Pregnant Workers Fairness Act (PWFA), effective June 2023, requires reasonable accommodation for pregnancy-related conditions and bars retaliation. The Equal Pay Act prohibits pay disparities based on sex.

Retaliation protections are equally important. The Family and Medical Leave Act (FMLA) prohibits firing an employee for taking qualifying leave. The Fair Labor Standards Act (FLSA) bars retaliation for complaining about wage and hour violations. The Occupational Safety and Health Act (OSHA) protects employees who report unsafe conditions. The National Labor Relations Act (NLRA) protects concerted activity, such as discussing wages or organizing. The Uniformed Services Employment and Reemployment Rights Act (USERRA) protects military service members. Missouri's Human Rights Act, Mo. Rev. Stat. sec. 213.010 et seq., adds state-level protections against discrimination based on race, color, religion, national origin, ancestry, sex, disability, and age (40-69), among other characteristics, for employers with six or more employees.

At-will employment simply means no reason is required for a lawful discharge. An employer relying on an illegal reason is not protected by the at-will doctrine.

If you were fired in Missouri

Being let go in an at-will state can feel arbitrary, but the absence of a stated reason does not mean the termination was legal. The first step is to document what happened as clearly and completely as possible. Write down the events leading up to the discharge, any comments a supervisor made, the timing relative to any complaint you filed or protected activity you engaged in, and any written communication you received.

Second, consider whether any of Missouri's recognized exceptions might apply. Were you fired after reporting a safety violation or refusing a directive you believed was illegal? That could support a claim under Missouri's Whistleblower's Protection Act, Mo. Rev. Stat. sec. 285.575, which since August 28, 2017 supplies the exclusive remedy in place of the common-law public-policy tort. If the firing followed a workers' compensation claim, the governing provision is Mo. Rev. Stat. sec. 287.780 instead. Did your employer make you a specific, individually negotiated promise of continued employment, separate from a general handbook? Missouri's implied-contract exception is narrow after Johnson v. McDonnell Douglas, so a standard handbook alone is unlikely to support a claim, but a specific bargained-for commitment might.

Third, consider the federal floor. If the termination had any connection to your race, sex, age, disability, pregnancy, military service, wage complaints, or other protected status or activity, a federal or state civil rights claim may exist regardless of Missouri's at-will rule.

Finally, act quickly. Deadlines matter. Claims under the Missouri Human Rights Act must be filed with the Missouri Commission on Human Rights, generally within 180 days of the adverse action. Federal EEOC charges typically must be filed within 300 days in states with a parallel agency. A whistleblower discharge claim now runs under Mo. Rev. Stat. sec. 285.575 rather than as a common-law tort, and a workers' compensation retaliation claim runs under Mo. Rev. Stat. sec. 287.780; each carries its own filing deadline, so confirm which provision governs your firing before assuming you have time. To keep all of these options open, let a Missouri employment lawyer review the termination in a free case evaluation as soon as possible (attorney advertising).

This article is general legal information, not legal advice. Employment law varies by state and changes frequently, and it is not a substitute for advice about a specific termination. For guidance on your situation, consult a licensed employment attorney in Missouri.

Related: At-Will Employment by State | Whistleblower Protections

More Missouri Laws

• Missouri Employee Monitoring Laws
• Missouri Final Paycheck Laws
• Missouri Whistleblower Laws
• Missouri Workers Compensation Laws

Frequently Asked Questions

Is Missouri an at-will state?

Yes. Missouri follows the at-will employment doctrine under common law, meaning an employer may terminate an employee at any time for any lawful reason or no reason, and an employee may resign at any time. Exceptions exist for public-policy violations, implied contracts, and federally protected characteristics.

Can I be fired for no reason in Missouri?

Generally yes. Under Missouri's at-will rule, an employer is not required to give a reason for termination. However, if the actual reason was illegal (discrimination, retaliation for whistleblowing, violation of an implied contract), the termination may still be actionable even if no reason was stated.

Is Missouri a right-to-work state?

No. Missouri's 2017 right-to-work law was repealed by voters via Proposition A in August 2018 before it ever took effect. Missouri workers can be required to pay union fees under a collective bargaining agreement. Right-to-work is a separate concept from at-will employment.

Can my employer fire me for filing a workers' compensation claim or reporting illegal activity in Missouri?

Not lawfully, but the two situations are governed by different statutes and both were tightened in 2017. Firing an employee for exercising workers' compensation rights is a statutory claim under Mo. Rev. Stat. sec. 287.780, not the common-law public-policy tort; effective August 28, 2017, that section requires the exercise of comp rights to be the 'motivating factor,' defined as having 'actually played a role in the discharge or discrimination and had a determinative influence on the discharge or discrimination.' Firing an employee for reporting illegal activity falls under Mo. Rev. Stat. sec. 285.575, effective the same date, which applies the same 'motivating factor' test, supplies the exclusive remedy alongside chapters 213 and 287, and allows actual damages but not punitive damages. The older 'contributing factor' standard associated with Fleshner v. Pepose Vision Institute, 304 S.W.3d 81 (Mo. banc 2010), does not apply to conduct on or after August 28, 2017.

Does an employee handbook protect me in Missouri?

Rarely, and not simply by being a handbook. In Johnson v. McDonnell Douglas Corp., 745 S.W.2d 661 (Mo. banc 1988), the Missouri Supreme Court declined to adopt a general handbook exception, holding that a handbook's self-imposed policies do not by themselves form a binding contract. Missouri courts require a genuine, mutual, bargained-for promise, not general handbook language, before at-will status is displaced. A specific, individually negotiated commitment of continued employment is a different question. Review your documents carefully or consult an attorney.

What protections do I have against discrimination in Missouri?

Federal law (Title VII, ADA, ADEA, GINA, PWFA) prohibits termination based on protected characteristics at all covered employers. Missouri's Human Rights Act, Mo. Rev. Stat. sec. 213.010 et seq., extends similar protections and applies to employers with six or more employees. Neither at-will employment nor a lack of stated reason shields an employer from liability for discriminatory discharge.

How long do I have to file a wrongful termination claim in Missouri?

Deadlines are strict and vary by claim. A charge under the Missouri Human Rights Act generally must be filed with the Missouri Commission on Human Rights within 180 days of the adverse action. Federal EEOC charges typically must be filed within 300 days in Missouri. Whistleblower discharge claims under Mo. Rev. Stat. sec. 285.575 and workers' compensation retaliation claims under Mo. Rev. Stat. sec. 287.780 carry their own separate deadlines. Consult an employment attorney promptly to avoid losing your rights.