How do I write a complaint letter about a rude co-worker?
Sarah Garza
Updated on March 31, 2026
Steps To Writing A Formal Complaint Letter
- Always try to resolve the conflict amicably before proceeding to a formal complaint letter.
- Write down the details about the harassment.
- Format your letter professionally.
- Introduce yourself and your purpose.
- Include details about the facts of the harassment.
How do I complain about a coworker?
To make your complaint, try using a technique called “I-statements”. With an I-statement, you focus on the problem you’re having instead of what’s wrong with your coworker, then you ask for what you need. A well-worded I-statement, delivered in a friendly tone, doesn’t sound at all confrontational.
Can you file a grievance against a coworker?
You can’t file a grievance against a co-worker. Asking the Union to grieve another coworker who most likely is a bargained for employee, is not the appropriate, or even a possible course of action. The grievance procedure exists for one reason only: to enforce the contract.
How do I write a letter of complaint about a coworker?
How to write a formal complaint letter about a coworker
- Try to resolve the conflict on your own.
- Make sure you have an issue to report.
- State the purpose of the letter.
- Include a lot of details.
- Explain your involvement in the situation.
- Propose a resolution.
- Make a copy of your letter.
How do you write a formal complaint at work?
Basic rules
- keep your letter to the point. You need to give enough detail for your employer to be able to investigate your complaint properly.
- keep to the facts.
- never use abusive or offensive language.
- explain how you felt about the behaviour you are complaining about but don’t use emotive language.
How do you write an HR complaint?
A few tips you could use when drafting an Employee complaint letter include:
- Identify exactly the kind of workplace harassment that took place.
- Write down the details about the harassment.
- Introduce yourself and your purpose.
- Present the facts of the harassment.
- Explain in great detail how you responded.