Sexual Harassment and Whistleblowing in the UK

Since 6 April 2026, sexual harassment has been expressly included as a qualifying disclosure under UK whistleblowing law. This means workers who blow the whistle on sexual harassment may be protected from detriment and unfair dismissal, provided the legal conditions are met. Acas confirms that this protection applies from 6 April 2026.

For UK employers, this change makes it even more important to provide safe, confidential and clearly documented ways for workers to raise concerns. Sexual harassment reports can be sensitive, complex and high-risk. They need to be handled with care, consistency and the right level of confidentiality.

In this article, we explain what the change means, how it connects to PIDA and protected disclosures, and what employers should review in their internal reporting process.

What changed in UK whistleblowing law?

Sexual harassment is now specifically listed as a matter that can qualify for whistleblowing protection under UK law. The Employment Rights Act 2025 amended the Employment Rights Act 1996 by adding sexual harassment to the list of disclosures that may qualify for protection.

Before this change, a worker reporting sexual harassment often had to rely on another category of wrongdoing, such as a health and safety risk or breach of a legal obligation. The new wording makes the position clearer by expressly recognising sexual harassment as a potential whistleblowing disclosure.

However, this does not mean that every sexual harassment complaint is automatically protected as whistleblowing. The disclosure still needs to meet the relevant legal requirements. This is why employers need a clear process for assessing, escalating and documenting sensitive reports.

How does this connect to PIDA?

PIDA stands for the Public Interest Disclosure Act 1998. It is a key part of the UK whistleblowing framework and protects workers who make certain disclosures of information in the public interest.

Under the Employment Rights Act 1996, a protected disclosure is a qualifying disclosure made by a worker in accordance with the legal requirements.

In practice, this means that employers should not treat whistleblowing as only an HR issue. Reports may involve legal, compliance, health and safety, safeguarding, misconduct or governance concerns. Sexual harassment can now also fall within this framework when the conditions for whistleblowing protection are met.

Why this matters for UK employers

Sexual harassment reports can involve several parts of the organisation, including HR, legal, compliance, senior management and line managers. If the process is unclear, workers may not feel safe speaking up internally.

A trusted internal reporting process helps employers:

• give workers a safe way to raise concerns
• protect confidentiality
• reduce the risk of retaliation
• document actions and decisions
• involve the right people at the right time
• follow up with the reporter where appropriate
• identify patterns or repeated misconduct

GOV.UK guidance for employers also highlights that whistleblowing policies and procedures help create a transparent working environment and demonstrate an organisation’s commitment to handling wrongdoing in the workplace.

Sexual harassment whistleblowing UK: what should employers review?

For employers searching for guidance on sexual harassment whistleblowing UK, the key question is practical: can workers report concerns safely, and can the organisation handle those reports properly?

UK employers should review whether their whistleblowing process clearly covers:

• sexual harassment disclosures
• confidential and anonymous reporting options
• protection from detriment or unfair treatment
• escalation routes for HR, legal and compliance teams
• secure case documentation
• access controls for sensitive reports
• communication with the reporter
• alignment with grievance, harassment and safeguarding procedures

A policy alone is not enough. Workers need to know where to report, what happens after a report is submitted and how their confidentiality will be protected.

Why internal reporting channels matter

When people do not trust internal reporting processes, they may stay silent or raise concerns externally. Both can create risk for the organisation.

Secure internal reporting channels help workers raise concerns earlier and give employers a structured way to respond. This is especially important for sensitive cases involving sexual harassment, discrimination, retaliation or wider workplace misconduct.

A clear reporting channel also helps responsible teams document the process from the first report to the final outcome. That documentation can be important if the organisation later needs to show how the concern was handled.

How Whistlelink supports secure reporting

Whistlelink helps organisations provide secure and confidential internal reporting channels that are simple for workers to use and easy for responsible teams to manage.

With Whistlelink, organisations can:

• receive reports through secure reporting channels
• allow anonymous two-way communication
• assign cases to the right people
• manage sensitive disclosures with access controls
• document actions, decisions and follow-up
• support reporting across different locations and legal environments

For UK employers, this supports a more trusted speak-up process and helps HR, legal and compliance teams handle sensitive concerns consistently.

Want to review your UK reporting process?
Book a demo to see how Whistlelink can support secure reporting, confidential follow-up and structured case management.