How to Write a Complaint Letter to the Manager (With Example)

1. Understand the Purpose of Your Complaint Letter

A complaint letter to a manager is a formal way to address workplace concerns. Common reasons for complaints include:

  • Unfair treatment or discrimination
  • Workplace harassment or bullying
  • Unsafe working conditions
  • Poor management decisions
  • Salary disputes or policy violations

A well-written complaint increases the likelihood of a positive resolution.

2. Review Company Policies Before Writing

Before drafting your letter, check:

  • Your company’s grievance policy – Outlines the complaint process
  • Who to address the complaint to – Your direct manager, HR, or senior management
  • Required documentation – Any supporting evidence needed for the complaint

Following company procedures ensures that your complaint is handled correctly.

3. Structure Your Complaint Letter Properly

A professional and well-organized letter improves clarity and effectiveness.

Your Details

  • Full name
  • Job title and department
  • Contact details (phone/email)

Recipient’s Details

  • Manager’s name
  • Company name and address

Subject Line

Example: Formal Complaint Regarding [Issue] – [Your Name]

Opening Paragraph

State your reason for writing concisely.

Example:
“I am writing to formally raise a complaint regarding [issue] that has been affecting my work environment. Despite previous attempts to resolve this matter informally, the issue remains unresolved.”

Main Body

Provide key details, including:

  • Description of the issue (e.g., unfair treatment, workplace safety, harassment)
  • Dates and times of incidents (if applicable)
  • Individuals involved
  • Previous actions taken to address the issue
  • Impact on your work and well-being

Attach supporting documents such as emails, witness statements, or company policy references.

Proposed Resolution

Explain what action you expect. Examples:

  • A formal investigation into the issue
  • Policy changes or additional training
  • Mediation or disciplinary action against the responsible party

Closing Statement

Request a timely response and express appreciation for their attention.

Example:
“I request that this matter be addressed promptly and would appreciate a response by [date]. Please confirm receipt of this letter.”

Sign-Off

Use a formal closing:

  • Yours sincerely (if addressing a named person)
  • Yours faithfully (if using “Dear Manager”)

4. Maintain a Professional and Respectful Tone

Even if you feel frustrated, keep your tone professional. Avoid emotional language or threats, as this could weaken your case.

5. Provide Supporting Documents

Attach relevant documents, such as:

  • Emails or previous correspondence
  • Witness statements (if applicable)
  • Photos or reports for workplace safety concerns

Mention in your letter that you have included these attachments.

6. Send the Letter via the Correct Channel

Depending on company policy, submit your complaint via:

  • Email – Attach the letter and request confirmation of receipt.
  • Printed Letter – Hand-deliver to your manager and request acknowledgment.
  • HR or Internal Complaint System – If your company has a formal grievance portal.

7. Follow Up If Necessary

If you do not receive a response within the expected timeframe, follow up with:

  • A polite email or phone call
  • A second complaint letter referencing your initial letter
  • Escalation to HR or senior management if unresolved

8. Escalate If Necessary

If the manager does not address your complaint, consider escalating to:

  • The HR Department – If the issue involves policy violations or workplace misconduct
  • Senior Management or Company Directors – If HR does not act
  • Regulatory Bodies – If the issue involves labor laws, workplace safety, or discrimination

9. Sample Complaint Letter to a Manager

[Your Name]
[Your Job Title]
[Company Name]
[Company Address]
[City, Postcode]
[Email]
[Phone Number]
[Date]

[Manager’s Name]
[Manager’s Job Title]
[Company Name]
[Company Address]

Subject: Formal Complaint Regarding [Issue] – [Your Name]

Dear [Manager’s Name],

I am writing to formally raise a complaint regarding [describe issue] that has been affecting my work environment. The issue first occurred on [date] and has continued despite previous attempts to address it informally.

The details of the issue are as follows:

  • Issue: [Briefly describe the problem, e.g., workplace harassment, salary dispute, unsafe conditions]
  • Attempts to resolve: [Mention any informal discussions, emails, or reports]
  • Impact: [Explain how it affects your work, well-being, or productivity]

I have attached supporting documents, including [list any evidence such as emails, witness statements, or policy references].

I kindly request that the necessary action be taken within [reasonable timeframe]. Please confirm receipt of this letter and provide a response by [date].

Thank you for your prompt attention to this matter.

Yours sincerely,
[Your Name]

10. Common Mistakes to Avoid

  • Being too vague – Provide specific details about the problem.
  • Using aggressive or emotional language – Keep it professional.
  • Ignoring company policies – Follow the correct complaint procedure.
  • Failing to provide evidence – Attach supporting documents where possible.

Frequently Asked Questions (FAQs)

How long should I wait for a response?
Most managers respond within 7 to 14 business days. If no response is received, follow up with HR.

Can I submit a complaint anonymously?
Some companies allow anonymous complaints, but they may have limitations in investigating the issue.

What if my complaint is ignored?
If ignored, escalate the complaint to HR, senior management, or legal authorities if necessary.

Should I consult a lawyer before submitting my complaint?
Legal advice may be useful if the complaint involves discrimination, harassment, or labor law violations.

Can I request a meeting instead of writing a letter?
Yes, but a written complaint ensures a formal record of your concerns.

Conclusion

Writing a complaint letter to a manager requires professionalism, clarity, and supporting evidence. By following these steps, you increase the likelihood of a fair resolution.

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