How to Write a Formal Complaint About a Coworker to HR
When a coworker's behavior crosses the line and informal attempts have not resolved it, here is how to document it formally.
Formal HR Complaint
Dear [HR Representative Name], I am writing to formally report a workplace concern regarding [Coworker Name/general description]. Situation: [Describe the behavior factually] Specific incidents: • [Date]: [What happened, who was present] • [Date]: [What happened, who was present] • [Date]: [What happened, who was present] Impact: This behavior has [affected my ability to work / created a hostile environment / violated company policy on X]. Steps taken: I have [tried to address it directly / spoken to my manager / documented each incident]. I am requesting [specific outcome - investigation / mediation / separation of work areas / enforcement of policy]. I am happy to provide any additional documentation or meet to discuss further. I trust this will be handled confidentially. Thank you, [Your Name] [Department/Title]
Suggested Subject Line
Formal Workplace Concern - Confidential
Alternative Versions
More Direct Version
Dear [HR], I need to report ongoing behavioral issues with [coworker]. Specific incidents are documented below with dates and witnesses. I request a formal investigation. [Incident list] Regards, [Your Name]
Warmer Version
Dear [HR], I am reaching out because I have been struggling with a situation at work that I have tried to resolve on my own. Unfortunately, [coworker's] behavior has continued to impact my work, and I feel it is important to bring it to your attention formally. I have documented specific incidents below and am happy to discuss further. I appreciate your help. [Incident list] Thank you, [Your Name]
When to Use This
Use this when: • Direct conversation has not resolved the issue • The behavior is serious or repeated • You need formal documentation • Company policy has been violated
What Not to Say
Avoid: • Emotional language or personal attacks • Vague complaints without specific incidents • Exaggerating or embellishing events • Gossiping to other coworkers before going to HR • Threatening legal action in your first communication