At-will employment and the Section 7 line: what "any reason" leaves out

"Any reason" is not "every reason"

At-will is a strong default, and it cuts both ways. An employee can quit on a Tuesday with no notice and no explanation, and an employer can let someone go the same way. That is the rule almost everywhere, and it is broad. The mistake is reading it as absolute. A termination that is technically at-will can still be unlawful if it crosses one of a small set of lines. A work rule that looks ordinary can still be a problem if it reaches too far into what employees are allowed to discuss.

Two separate bodies of law do the bounding, and they come from different places. State law, mostly built by courts over decades, sets the exceptions to at-will and decides what counts as wrongful termination. Federal labor law, through the National Labor Relations Act, protects the right to act together over working conditions. It also limits the rules an employer can maintain. Keep them separate in your head and the picture gets a lot clearer.

1. An illegal reason is never allowed. You cannot fire someone because of a protected characteristic, in retaliation for exercising a legal right, or for any other reason a statute forbids. Title VII, the ADA, the ADEA, the FMLA, and the NLRA all carve reasons out of at-will. At-will is no defense to any of them.
2. The three common-law exceptions. Courts in most states recognize a public-policy exception, an implied-contract exception, or both, and a minority recognize a covenant of good faith and fair dealing. Each one can turn an at-will firing into a wrongful one.
3. A contract or a handbook promise. An express contract or a union agreement can replace at-will with for-cause terms. So can handbook language or assurances that imply job security, often by accident. This is why a clear disclaimer matters.
4. Montana. One state is not at-will at all. After an employee completes a probationary period, a Montana employer must have good cause to terminate, by statute rather than by case law.

At-will and the three ways courts narrow it

At-will employment is the baseline assumption in every state but one. Unless something changes it, the law presumes there is no fixed term and either party can walk away. What varies from state to state is the set of exceptions the courts have built on top of that presumption. Three are common enough to have names.

Public policy Most states

You cannot fire someone for a reason that violates a clear public policy. The usual examples are refusing to commit an illegal act or reporting a violation of the law. The third is exercising a legal right, such as filing a workers’ compensation claim, serving on a jury, or taking protected leave. This is the most widely recognized exception.

Implied contract Most states

An employer can create an implied promise of job security without meaning to. It can come from handbook language, a stated progressive-discipline process, verbal assurances, or a long pattern of for-cause practice. Where courts find one, at-will gives way. A plainly worded at-will disclaimer is the standard guard against this.

Good faith and fair dealing A minority of states

A smaller set of states reads an implied duty of good faith into the employment relationship. It is usually invoked against a bad-faith firing, such as letting someone go right before a commission or bonus vests, specifically to avoid paying it. This is the narrowest of the three.

How many states fall in each bucket is not a fixed number, and sources disagree because the lines move as courts decide new cases. The Bureau of Labor Statistics review that practitioners still cite counted the public-policy exception in 43 states. It found the implied-contract exception in 38 and the good-faith covenant in 11. Those tallies have drifted since, but the shape holds: the public-policy and implied-contract exceptions are widespread, and the good-faith covenant is the rare one. The practical takeaway does not depend on the exact count. In any state, an otherwise lawful firing can become wrongful if it trips one of these. The reason for a termination and the paper trail behind it matter even when employment is at-will.

Montana is not an at-will state

Montana stands alone. Under its Wrongful Discharge from Employment Act, an employee who has completed the employer’s probationary period cannot be fired without good cause. Good cause means a reasonable, job-related ground. That covers failure to perform, disruption of the business, a material violation of written policies, or another legitimate business reason. Montana’s courts and legislature went further than the common-law exceptions other states use. The Act superseded the state’s old at-will statute outright. Good cause is the rule there, not an exception to it.

12-month default probation

A 2021 amendment raised Montana’s default probationary period from six months to twelve. An employer can set its own period in a written policy and extend it, but the total cannot exceed 18 months. During probation the relationship is at-will and either side can end it for any reason. Good cause attaches once probation ends.

This catches out-of-state employers most often. A company headquartered elsewhere can still owe the Montana standard to an employee who does most of their work in Montana. A choice-of-law clause picking another state’s law will not always save it. The employee side of at-will is untouched anywhere, including Montana: a worker can still quit at any time. It is the employer’s freedom to terminate that Montana constrains.

The Section 7 line even with no union

Here is the part that surprises people. A separate federal law, the National Labor Relations Act, protects employees who act together over the terms of their work. It applies to most private-sector employers whether or not there is a union. Section 7 of the Act gives employees the right to engage in concerted activity for mutual aid or protection. Section 8(a)(1) makes it an unfair labor practice for an employer to interfere with that right. The Board has long held that this includes maintaining work rules that would reasonably tend to discourage employees from exercising it.

The most common collision is a rule telling employees not to discuss their pay. Talking about wages with coworkers is close to the center of what Section 7 protects. A blanket pay-secrecy rule is therefore unlawful in most workplaces, union or not. The same logic reaches confidentiality, social media, and conduct rules. The problem is a rule written so broadly an employee could read it as a bar on discussing working conditions.

1. Talking about pay and conditions. Employees can discuss and compare wages, hours, and working conditions with each other. A rule that forbids discussing pay, or treats it as confidential, runs straight into Section 7.
2. Raising concerns together. Two or more employees acting together over a shared work issue, or one employee acting on behalf of others, is protected concerted activity. Disciplining someone for it can be an unfair labor practice.
3. Speaking up about work, including online. A social-media post about shared working conditions can be protected. A policy that broadly bars criticizing or disparaging the company can be read to chill that right. This is where many handbook rules get into trouble.
4. The choice to stay out of it. The right runs both ways. Employees are equally free to decline to take part in concerted or union activity. An employer cannot coerce participation any more than it can punish it.

The Act does not cover everyone. Supervisors as the Act defines them, independent contractors, agricultural and domestic workers, and public-sector employees are outside Section 7. Railroad and airline workers are covered by a different statute. But the line sweeps in the rank-and-file employees most handbooks are written for. The question is rarely whether the Act applies, and almost always whether a given rule reaches too far.

How work rules are judged and why that test keeps changing

When the Labor Board decides whether a facially neutral work rule is lawful, it applies a legal test. That test is set by whoever holds the majority on the Board at the time. It has flipped with the last several administrations, which makes it the single most volatile item on this page. As of mid-2026, the governing standard is the one the Board adopted in Stericycle, Inc. in 2023.

The standard now Stericycle, 2023

A rule is presumptively unlawful if it has a reasonable tendency to chill employees from exercising Section 7 rights. The test views the rule from the perspective of an employee who is economically dependent on the job. The employer can rebut that by proving the rule advances a legitimate and substantial business interest. That interest must be one that cannot be met with a more narrowly tailored rule. It overruled the more employer-friendly Boeing framework.

Where it may be heading Expected to shift

The Board lost its quorum for most of 2025 and regained it in January 2026 with a new majority. That majority is widely expected to revisit Stericycle and return to something closer to the 2017 Boeing standard. It gave employer interests more weight and treated some categories of rules as lawful on their face. As of the latest reporting, no decision has overruled Stericycle, so it remains the operative test.

Two practical notes follow from that. First, the change is not instant. A new Board majority can only act when the right case reaches it. This Board’s quorum is itself fragile, with a member’s term expiring in the second half of 2026. The General Counsel decides which cases to pursue, and has already signaled a shift in how work-rule charges will be handled. A signal from the prosecutor is not the same as a new rule from the Board. Until the Board itself acts, Stericycle is what regional offices and administrative law judges apply.

Second, and more useful, the underlying right does not move when the test does. Section 7 is a statute. A change in administration can loosen how aggressively overbroad rules are challenged, and it can change the legal standard for judging them. It cannot repeal the right of employees to talk together about their pay and conditions. So the safe way to write a handbook is the same under either test. Draw each rule narrowly and tie it to a real business reason rather than a broad ban. Then add a short savings statement. It should make clear that nothing in the policies limits employees’ rights under the National Labor Relations Act. One caution is worth keeping. Under the current Stericycle standard, a savings clause helps but will not rescue a rule that is overbroad on its own. The narrow drafting has to come first. As the four-fifths rule article on this site puts it about a different shifting area, the law shifts and the safe practice does not.

Four ways the line gets crossed

• A blanket rule against discussing pay.Telling employees their compensation is confidential and may not be shared is one of the most common handbook mistakes. Discussing wages with coworkers is core protected activity under Section 7. A pay-secrecy rule is therefore unlawful in most workplaces, union or not. Several states bar it directly as well.
• A handbook that promises more than you mean.Three kinds of language can create an implied contract that quietly undoes at-will. Saying employees will only be let go for cause is one. So is a progressive-discipline policy written as a guarantee of steps, or a phrase like permanent employee. Pair an at-will statement with a clear not-a-contract disclaimer and an acknowledgment, and keep the discipline policy framed as a guide, not a promise.
• Overbroad civility, confidentiality, and social-media rules.Some common rules can be read to reach protected speech about working conditions. Examples are barring negative comments about the company, requiring employees to be respectful at all times, or keeping all company matters confidential. The fix is specificity: aim the rule at the real harm, such as harassment or disclosure of genuine trade secrets, not at criticism in general.
• Treating the firing date as the only thing that matters.An at-will termination can still be wrongful if the timing or the reason lines up with a protected event. Think of a workers’ comp claim last week, an FMLA request, or a group of employees who just complained together about scheduling. The decision needs a documented, legitimate reason, not just the at-will label.

Six red flags to check before you fire someone

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