Employment guide

Whistleblowing and Retaliation at Work

Facing retaliation after whistleblowing? Understand your legal protections under UK law, what qualifies as a disclosure, and what options may be available.

Last reviewed: 30 March 2026

Quick answer

Workers who make qualifying disclosures in the public interest are protected from detriment and dismissal under the Employment Rights Act 1996 (as amended by the Public Interest Disclosure Act 1998). If a worker is subjected to retaliation for whistleblowing, they may be able to bring a claim to the employment tribunal with no qualifying service period required.

What this means in practice

For a disclosure to qualify for whistleblowing protection, it must be a disclosure of information (not merely an allegation or expression of opinion) that the worker reasonably believes tends to show one or more of six types of wrongdoing, and the disclosure must be made in the public interest. The six categories are: criminal offences, breach of legal obligations, miscarriages of justice, dangers to health and safety, environmental damage, and deliberate concealment of any of these. The disclosure must be made to an appropriate person — typically the employer in the first instance, though disclosures to prescribed persons (such as regulators), legal advisors, and in certain circumstances to the wider public, are also protected. Retaliation can take many forms, from dismissal to more subtle detriments such as being passed over for promotion, being excluded from projects, or having responsibilities removed.

Common situations

Common situations include: being dismissed shortly after reporting health and safety concerns, being subjected to disciplinary action after raising concerns about financial irregularities, experiencing a hostile working environment after reporting regulatory breaches, being moved to a less desirable role after disclosing information about illegal practices, having hours reduced or shifts changed after raising concerns, and being ostracised or excluded by colleagues and management after making a disclosure.

What UK law says

The Public Interest Disclosure Act 1998 (PIDA) inserted provisions into the Employment Rights Act 1996 (sections 43A to 43L) that protect workers who make qualifying disclosures. Section 43B defines a qualifying disclosure. Section 47B protects workers from being subjected to any detriment by their employer on the ground that they have made a protected disclosure. Section 103A provides that dismissal for making a protected disclosure is automatically unfair, with no qualifying service period required and no cap on compensation. Section 43C to 43H set out the circumstances in which disclosures to various recipients are protected. The prescribed persons list (to whom disclosures may be made) is maintained by the government and includes regulators such as the FCA, HSE, CQC, and HMRC.

What people often consider

People who have made or are considering making a whistleblowing disclosure often think about whether the disclosure meets the legal test for protection — particularly whether it is in the public interest and whether it is a disclosure of information rather than a general complaint. Some consider making the disclosure to the employer first, as this is often the simplest route to protection, while others may need to consider disclosing to a prescribed person or regulator if they reasonably believe the employer will not address the concern. Keeping detailed records of the disclosure and any subsequent treatment is widely considered important. Seeking advice from a solicitor specialising in whistleblowing cases, or from the charity Protect (formerly Public Concern at Work), may help clarify the options.

Common mistakes to avoid

Common mistakes include: not framing the disclosure as a public interest concern (personal grievances are generally not protected), making disclosures to the media or public without first attempting internal or regulatory channels (which may affect whether the disclosure is protected), not keeping written records of when and how the disclosure was made, failing to recognise subtle forms of retaliation such as being excluded from opportunities, and missing the three-month less one day time limit for bringing tribunal claims.

Frequently asked questions

What counts as whistleblowing under UK law?
Under sections 43A and 43B of the ERA 1996, a qualifying disclosure is a disclosure of information that the worker reasonably believes tends to show a criminal offence, breach of legal obligation, miscarriage of justice, danger to health and safety, environmental damage, or deliberate concealment of any of these, made in the public interest.
Do I need a certain length of service to be protected as a whistleblower?
No. Protection from detriment under s.47B ERA 1996 and from dismissal under s.103A ERA 1996 applies regardless of length of service. There is also no cap on compensation for whistleblowing dismissal claims, unlike ordinary unfair dismissal.
Who should I report my whistleblowing concern to?
The employer is typically the first point of contact for a protected disclosure under s.43C ERA 1996. Disclosures may also be protected when made to a legal advisor (s.43D), a prescribed person or regulator (s.43F), or in wider circumstances set out in s.43G and s.43H. The appropriate route depends on the nature of the concern.
What if I am dismissed after whistleblowing?
Dismissal for making a protected disclosure is automatically unfair under s.103A ERA 1996. A claim may be brought to the employment tribunal with no qualifying service period. Compensation is uncapped and may include an award for financial losses as well as injury to feelings in some cases.

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This guide provides general information about UK law and is not legal advice. Laws and regulations may change. For advice specific to your situation, consult a qualified solicitor. LawClarity is an informational service only.