An employee complaint is a report from a worker that something in the workplace is wrong: how they are being treated, how a coworker is behaving, how pay or scheduling is being handled. How you respond in the first week determines most of what follows, including whether the situation stays a workplace issue or becomes a legal one.

This article walks through what to do when a complaint lands on your desk, what Colorado law expects of you, and where owners get themselves in trouble.

Why the first response matters most

Most complaints do not arrive as legal claims. They arrive as a conversation in a doorway, a vague email, or a comment to a supervisor that gets passed along. The moment your business knows about a problem, though, the clock starts, legally and practically. Retaliation claims, which are now the most common charge filed with the EEOC, are rarely about the original complaint. They are about what happened to the person after they raised it.

The practical rule: treat every complaint as if you will someday need to explain your response to someone outside the company. Because sometimes you will.

The response, step by step

Take it in writing. If the complaint came verbally, write down what was said, when, and who was present, and confirm the substance back to the employee. You are not judging it yet. You are recording it.

Thank the employee and say what happens next. Not "we take this seriously" as a slogan, but the actual next step: who will look into it, roughly when they will hear back. Silence after a complaint is how employees conclude nothing is happening, and how lawyers get their first phone call.

Decide the scale of the response. A scheduling gripe needs a manager conversation. A harassment allegation, a discrimination claim, or anything involving safety needs a real investigation, and a decision about whether you can run it internally or need an outside senior consultant. The line is roughly this: if the allegation, taken as true, could produce a lawsuit or involves someone senior enough that no insider is neutral, get outside help.

Protect against retaliation from day one. No schedule changes, no reassignments, no cooling toward the person who complained, and tell their manager the same. Under both federal law and the Colorado Anti-Discrimination Act, retaliation is a separate violation even when the original complaint does not hold up.

Close the loop. When the review ends, tell the complaining employee it is resolved and what category of action was taken, without disclosing another employee's discipline in detail. Unclosed complaints are reopened complaints.

What Colorado adds on top of federal law

Colorado employers carry a few obligations beyond the federal baseline. The Colorado Anti-Discrimination Act applies to employers of every size, unlike federal Title VII which starts at 15 employees, so being small does not exempt you.

The POWR Act, in effect since 2023, tightened the harassment standard, replacing the old "severe or pervasive" bar with a lower threshold, and added recordkeeping requirements: complaints of discriminatory or unfair employment practices must be kept in a designated repository. If nobody at your company maintains one, that is a compliance gap sitting in plain sight.

Common mistakes owners make

Handling it in the hallway is the big one, a complaint acknowledged casually and never written down looks like a complaint ignored. Promising confidentiality you cannot keep is second; you can promise discretion, not secrecy, because an investigation has to talk to people.

Letting the accused's seniority slow the response is third, and it is exactly the situation where an outside consultant protects you most. And investigating your own decision, when the complaint is about something you did, is a conflict no owner should try to referee.

What this means for your business

Complaint handling runs on three documents you can set up before anything happens: a written complaint procedure in the handbook that names two routes to report (never just "tell your manager", the manager is sometimes the problem), a repository for complaint records per the POWR Act, and a short internal playbook for who does what in the first 48 hours. A company with those three things responds in days. A company without them improvises, and improvisation reads as indifference to the person who complained.

When a complaint is bigger than you can neutrally handle, that is the moment for a senior employee relations consultant rather than a guess. And if the complaint escalates into a formal review, the next article to read is how a workplace investigation actually works, because that process has its own rules, and doing it halfway is worse than not starting.