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Employee Whistleblower Letter

Suitable For: UK (England & Wales, Northern Ireland and Scotland)
Downloads: 8,092
Last Updated: May 15, 2026
Time to Complete: 2 min.
Available formats: PDF and Word

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What is a whistleblowing letter in the UK?

A whistleblower letter​ is an official communication issued by the employee to inform their employer or other competent authority about the wrongdoing in the workplace. This letter can be used by:

A standard whistleblower letter sample defines details of the incident and employee’s information in a compliant and professional way.

When to Use this Whistleblowing Letter Template?

This letter can be used by employees and casual workers to report wrongdoings in the workplace, including:

  • a criminal offence;
  • violation of environmental laws;
  • violation of safety and health requirements in the workplace;
  • miscarriage of justice; and
  • any other violation of UK law or the company’s internal policies.

This letter is different from a letter of grievance that is being sent by an employee to complain about the work-related issues, such as unpaid wages, unallocated holidays, unfair dismissal, etc.

What information would you need to complete this sample whistleblower letter​?

A solid example whistleblowing letter should include a number of important elements, including:

Incident Details

This is the main section of the document that shall outline:

  • date on which the incident takes place;
  • detailed description of the incident itself;
  • list of staff and employees involved in the wrongdoing;

Any supporting documentation, such as video recordings or photos, can also be referred to in the text of the letter.

If the letter is being sent to the employer, it is better first to review a company’s internal hiring policy. The policy may contain a minimum list of information to be included in the letter.

Witnesses

Even if the letter is being sent anonymously, the sender may also include full names and job titles of witnesses. These are individuals who are not directly involved in the wrongdoing, though who can directly or indirectly confirm facts described in this letter.

Protected Disclosure

It is common for whistleblower letter​ templates to mention the protected disclosure. This is the right of all employees to be protected against harassment, bullying, victimisation, unfair dismissal, or redundancy for the fact of reporting the wrongdoing under the Public Interest Disclosure Act 1998.

This is a powerful legal clause that adds the text of the letter a professional tone.

Sender’s Details

Inclusion of the sender’s details in the letter depends on its type. If the letter is being sent anonymously, details of the employee should be omitted. In such a case the text of the letter shall outline “sent anonymously” and can only include the employer’s full name and the employee’s job title for reference.

If the employee is ready to share their identity in the text of the letter, in such a case a letter should clearly outline the employee’s full name, address, job title, contact email and phone number.

How to customise this letter template with FasterDraft?

To get a fully customisable whistleblower letter sample, follow a few easy steps below:

  1. Click the “Create Document” button.
  2. Answer simple questions in the form.
  3. Select a template’s format – PDF or Word.
  4. E-sign the document.
  5. Make a payment.

The document is ready for instant download immediately after the purchase.

Table of content

Frequently Asked Questions (FAQ)

  • 1. What is an anonymous whistleblowing letter sample​?

    This is a letter that is being sent to disclose and port ongoing issues in the workplace without disclosing the identity of the employee.

  • 2. Can I be fired for whistleblowing?

    No, you cannot fire employees for submission of this letter. UK employers are obliged to offer a protected disclosure guarantee to all employees and staff under the Public Interest Disclosure Act 1996.

  • 3. Do I need proof to make a whistleblowing report?

    No, submission of additional supporting documents is not directly required. However, the letter sample shall include a detailed description of the incident and a list of employees and staff involved, as well as any witnesses that can confirm information provided in the letter.

  • 4. In which format should this letter be sent?

    You can customise this letter as a Whistleblower email sample or as a normal letter that can be sent by post.

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