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Changes to Whistleblowing protections under UK law

Published Jan 28, 2026

Sexual harassment will become a "qualifying disclosure" under whistleblowing law from April 2026. This will mean protection from detriment and unfair dismissal for whistleblowers making a sexual harassment disclosure.

So, this will mean that a complaint or report of sexual harassment at work will be treated as a protected disclosure under whistleblowing legislation.

Employers will need to update their Whistleblowing Policy to maintain compliance with the amended legislation.

What is Whistleblowing?

UK law protects workers who raise concerns about wrongdoing in the public interest. Such concerns include criminal offenses, dangers to health and safety, environmental damage and breaches of legal duty. These protections are set out in the Public Interest Disclosure Act 1998.

To qualify for protection, a disclosure must relate to specific types of wrongdoing (such as those noted above) and be made to an appropriate person, such as an employer or regulator.

Where a disclosure meets the legal test, workers are then protected from being dismissed or subjected to detriment (e.g. disciplinary action, demotion, blocked from training, etc.) because they spoke up.

There is no minimum length of service required for whistleblowing protection.

If a tribunal finds that a dismissal or other adverse treatment was “materially influenced” by a protected disclosure then the employer can face an uncapped compensation award.

Sourced by: Gavin Parrott