How to Handle an Employee Complaint: A Step-by-Step Guide for Founders

Employee complaints fall into two categories: operational (I disagree with this process, my manager doesn’t communicate well, I think this decision was wrong) and serious (I’m being harassed, I witnessed something illegal, I believe I’m being discriminated against). The way you handle each is very different, and misidentifying which one you have is one of the most common and costly mistakes founders make.

Step 1: listen without committing to an outcome

When an employee raises a complaint, your first job is to listen fully without minimizing, dismissing, or immediately defending the other party. Do not say “I’m sure they didn’t mean it that way” or “that doesn’t sound like something they would do.” Those responses communicate you’ve already decided the complaint isn’t valid. They also appear in lawsuits as evidence that management was biased from the start.

Take notes. Write down what the employee said, as close to verbatim as you can. Date and time stamp it. Close the conversation by thanking them for coming to you and explaining what happens next. Do not promise confidentiality you can’t keep — if the complaint involves harassment or discrimination, you are typically required to investigate, which means others will learn about it.

Step 2: determine what kind of complaint this is

If the complaint involves harassment, discrimination, a hostile work environment, retaliation, or a potential violation of law — stop and contact HR or an employment attorney before taking further action. These complaints trigger specific legal obligations: the duty to investigate promptly, maintain confidentiality to the extent possible, protect the complainant from retaliation, and document every step. Getting this wrong — either by mishandling the investigation or failing to act — creates significant liability.

If the complaint is operational, you have more flexibility in how you respond, but you still need to respond substantively and promptly.

Step 3: investigate before you act

For serious complaints, investigation means: speaking separately with the complainant, the accused, and any witnesses; reviewing relevant documents, messages, or records; and documenting every interview in writing. The investigation should be completed as quickly as the situation allows — unreasonable delay is itself a problem. It should be conducted by someone with no stake in the outcome. If that person doesn’t exist internally, bring in outside HR support.

Step 4: take action and document it

After the investigation, take action proportionate to the findings. If misconduct is confirmed: address it directly and document what was done. If the complaint cannot be substantiated: document the investigation and its findings, and communicate the outcome to the complainant without disclosing confidential details. Follow up with the complainant to confirm the situation has been addressed and they are not experiencing retaliation.

The retaliation issue: where companies really get in trouble

Federal law prohibits retaliation against employees who make good-faith complaints about discrimination or harassment — even if the underlying complaint is not substantiated. Retaliation doesn’t have to be firing. A schedule change, reassignment to a less desirable role, exclusion from meetings, or a suddenly critical performance review can all constitute retaliation. These cases are often easier for plaintiffs to win than the underlying discrimination claim. Once an employee makes a protected complaint, document every subsequent management action affecting them and make sure each has a legitimate business reason that predates the complaint.