Workplace Retaliation: What Counts, How Claims Start, and What HR Should Document

What Is Workplace Retaliation?

Retaliation is an employer taking action against someone because that person asserted a legal right or took part in a process that enforces one. For most discrimination complaints, the starting point is section 704(a) of Title VII, 42 U.S.C. § 2000e-3(a). It makes it unlawful for an employer to discriminate against an employee or applicant "because he has opposed any practice made an unlawful employment practice by this subchapter, or because he has made a charge, testified, assisted, or participated in any manner in an investigation, proceeding, or hearing under this subchapter."

The other EEO laws—the ADEA, ADA, Rehabilitation Act, Equal Pay Act, and GINA—also prohibit retaliation. The EEOC's position on these laws is set out in its Enforcement Guidance on Retaliation and Related Issues, issued August 25, 2016. The guidance is the agency's interpretation and does not bind courts. The EEOC's separate 2024 harassment guidance was rescinded in January 2026 and should not be cited as current.

A retaliation claim has three parts: protected activity, a materially adverse action, and a causal connection between them.

Why these claims are so common

Retaliation is the basis most often alleged in EEOC charges. The agency's charge table reports 54,350 charges alleging retaliation under all statutes out of 88,201 total charges in fiscal year 2025, about 62 percent. A single charge can allege several bases. Check the EEOC's current Enforcement and Litigation Statistics for the latest figures.

The practical reason is that the underlying complaint does not have to be correct. An employee can lose the discrimination claim and still win on retaliation.

Element One: Protected Activity

Section 704(a) protects two kinds of conduct, and the standards differ.

Participation means making a charge, testifying, assisting, or participating in an investigation, proceeding, or hearing under the statute. The EEOC's position is that participation is protected whether or not the underlying allegation has merit, and that false or bad-faith statements are for the agency or court to weigh, not for the employer to punish. Some courts have held otherwise, so check the rule in your jurisdiction with counsel before disciplining anyone for what they said in a charge or agency proceeding.

Opposition means opposing a practice the employee believes is unlawful. It is protected when the employee acts on a reasonable, good-faith belief that the conduct violates, or could come to violate, the EEO laws, and opposes it in a reasonable manner. The belief does not have to be right, and the employee does not have to use legal terms.

The EEOC lists these as examples of protected opposition:

• Complaining, or threatening to complain, about discrimination against oneself or others
• Providing information in an employer's internal investigation of an EEO matter
• Refusing to obey an order reasonably believed to be discriminatory
• Resisting sexual advances or intervening to protect others
• Requesting a reasonable accommodation for a disability or a religious practice
• Asking managers or coworkers about pay to uncover potentially discriminatory wages

An informal verbal complaint to a supervisor counts. So does serving as a witness in someone else's investigation.

Protected activity under other laws

Title VII is not the only source. Almost every workplace statute has its own provision, with its own agency, standards, and deadlines.

State laws add workers' compensation retaliation rules, whistleblower statutes, and, in some states, broader standards than federal law. For the leave-specific version of this problem, see our guide to preventing retaliation claims related to leave.

Element Two: A Materially Adverse Action

Older articles, including one this page replaces, described retaliatory conduct as termination, demotion, or another change that "materially affects the terms, conditions, or privileges of employment." That has not been the Title VII test since 2006.

In Burlington Northern & Santa Fe Railway Co. v. White, 548 U.S. 53 (2006), the Supreme Court held that the anti-retaliation provision "extends beyond workplace-related or employment-related retaliatory acts and harm." The employee must show that a reasonable employee would have found the action materially adverse, meaning it "well might have dissuaded a reasonable worker from making or supporting a charge of discrimination."

Three things follow from that decision:

1. The action does not have to cost the employee pay or title. In Burlington Northern, the two actions were a reassignment from forklift duty to dirtier track laborer work in the same job classification, and a 37-day unpaid suspension that was later reversed with back pay. Both counted.
2. Context decides. The Court's own examples: a schedule change may mean little to many workers but "may matter enormously to a young mother with school age children," and excluding an employee from a weekly training lunch that contributes to advancement might well deter a reasonable employee.
3. Trivial conduct is not enough. "Petty slights, minor annoyances, and simple lack of good manners" normally will not meet the standard. The EEOC adds that actions which are minor standing alone can qualify when considered together.

The EEOC's guidance gives further examples of actions that may be materially adverse: negative evaluations, transfers, reprimands, threatening reassignment, scrutinizing work or attendance more closely than that of other employees without justification, removing supervisory responsibilities, disparaging the person to others, and making false reports to government authorities.

Two extensions matter in practice. Action against a third party can be retaliation: in Thompson v. North American Stainless (2011), the Court held that firing an employee's fiancé because she filed a charge was actionable, while declining to define a fixed list of covered relationships. Former employees are also protected, so an unjustified negative reference given because of a past complaint can support a claim.

Do not confuse this test with the one for discrimination claims. In Muldrow v. City of St. Louis (2024), the Court held that a discrimination plaintiff challenging a transfer needs to show only some harm to a term or condition of employment, and explained that Burlington Northern's "materially adverse" standard was adopted for reasons specific to retaliation. The two claims are analyzed separately.

Element Three: Causation

Under University of Texas Southwestern Medical Center v. Nassar (2013), Title VII retaliation claims "must be proved according to traditional principles of but-for causation." The employee must show the action would not have happened but for a retaliatory motive. Retaliation does not have to be the only cause.

Because few decision makers announce a retaliatory motive, causation is usually shown through circumstantial evidence. The EEOC's guidance identifies the kinds that matter:

• Suspicious timing. Closeness in time between the protected activity and the action. The guidance is equally clear that a long gap does not rule out retaliation where other evidence exists.
• Statements. Oral or written comments by the people who recommended or approved the action.
• Comparative evidence. A similarly situated employee who did not complain was treated better, or a rule was enforced selectively.
• Inconsistent or shifting explanations. Different reasons given at different times, or reasons the documents do not support.

Other statutes use different causation rules, so involve counsel when a claim arises under the FMLA, the OSH Act, or a whistleblower law.

How Retaliation Claims Start During an Investigation

Much of the exposure is created by well-meant decisions in the days after a complaint.

• Interim measures that burden the complainant. Separating the parties is often sensible. Moving the complainant to a worse shift, location, or assignment to achieve it is the fact pattern Burlington Northern describes. If someone has to move, consider moving the accused, or give the complainant a real choice and document it. Our posts on when an employer has to investigate and administrative leave pending investigation cover interim decisions in detail.
• Discipline that was already coming. An employee with real performance problems complains, and the manager proceeds with discipline planned earlier. This can be lawful. It is defensible only if the record predates the complaint and matches how others were treated.
• Exclusion and coldness. The employee stops being invited to meetings or considered for good assignments. One awkward interaction is a petty slight. A sustained pattern that affects the employee's work may not be.
• Increased scrutiny. Closer monitoring that begins right after a complaint, and is not applied to peers, is on the EEOC's list of examples.
• Witnesses and former employees. Both are protected and both are easy to overlook.

What HR Should Do and Document

The EEOC's guidance lists "promising practices" in five areas: written policies, training, anti-retaliation advice and individualized support, proactive follow-up, and review of employment actions. The agency notes these do not insulate an employer from liability.

When the complaint arrives

1. Tell the complainant that retaliation is prohibited and exactly how to report it. Record that you did so in the intake record; see documenting the statement of complaint.
2. Tell the accused, and the accused's manager, what retaliation includes, with examples, and whom to consult before making any decision that affects the complainant or a witness. The EEOC recommends giving accused managers a resource person to help them handle their own reaction.
3. Record a baseline: the complainant's current assignment, schedule, pay, most recent evaluation, and any pending discipline, as they stood before the complaint.
4. Limit knowledge of the complaint to those who need it.

During and after the investigation

5. Check in with the complainant and key witnesses at set intervals and ask directly whether anything has changed in how they are treated. Many employers use points such as 30 and 90 days after closing; choose intervals that fit the case and keep to them.
6. Route proposed employment actions affecting the complainant or witnesses through HR, an EEO specialist, or counsel for a defined period.
7. Treat any report of retaliation as a new complaint and follow your HR investigation process, step by step.
8. Keep the baseline, check-in notes, and review decisions with the investigation file, following the practices in evidence collection and storage.

Sample baseline and monitoring record

The names and facts below are fictional and shown only as an example.

When discipline or termination is warranted

The EEOC's guidance says plainly that employers remain free to discipline or terminate for legitimate, non-retaliatory reasons despite prior protected activity. Before acting:

9. Confirm the basis is documented and either predates the complaint or is independently serious.
10. Compare the proposed action with how similar conduct by others was handled.
11. Have someone who was not named in the complaint evaluate the decision independently.
12. Make sure the stated reason will be the same everywhere it appears, from the termination letter to an agency response. The employee termination checklist and our overview of the EEOC complaint process show where those statements end up.

Training That Prevents Retaliation Complaints

Policies do little unless people know what they mean before a complaint is filed.

All employees should be able to explain what retaliation is, know how and to whom to report it, and understand the basics of an investigation: how to raise a complaint, what an investigator does, and that the employer will act on retaliation against anyone who complains or provides information. Explaining the process in advance also reduces the reluctance that slows investigations down.

Managers need more:

• What counts as protected activity, including informal complaints, accommodation requests, and witness participation
• How broad "materially adverse" is, with examples such as exclusion, scrutiny, and reassignment
• The duty to consult HR before any employment action involving someone who complained or was a witness
• How to keep supervising normally when they cannot be told the details of an investigation
• How to stop suspected retaliation by others and report it immediately, and that they may never discourage an employee from reporting it
• For managers at remote sites who may receive complaints first: what form to use, what to ask, what to preserve, and where to send it

One caution on confidentiality instructions. Asking participants not to discuss an open investigation is common, but broad or open-ended gag instructions to nonsupervisory employees can raise issues under the National Labor Relations Act. Keep the request narrow, tie it to the integrity of the investigation, and use wording counsel has approved. Consult labor counsel on the current NLRB standard.

Investigators need the deepest version. The agenda for our Internal Investigations Certificate Program lists a review of the Supreme Court case that redefined retaliation and an exercise on telling cold behavior from retaliation. Broader EEO Training options cover the underlying discrimination and harassment law.

Frequently Asked Questions

The Bottom Line

Workplace retaliation claims are built from timing, inconsistency, and missing records. The prevention is specific: tell everyone involved, in writing, what retaliation includes; record the complainant's and witnesses' status before anything changes; check in on a schedule; and have every later decision that affects them reviewed by someone outside the complaint.

To see where these steps sit in the full process, start with the Workplace Investigations Guide and the Workplace Investigation FAQs. To practice them, the three-day Internal Investigations Certificate Program covers retaliation alongside interviewing, evidence, and report writing.