Yes, whistleblowing is protected by law in the UK, but only when it counts as a “protected disclosure”. The Public Interest Disclosure Act 1998 added Part IVA to the Employment Rights Act 1996, and that protection is narrower than many people assume. Raising a concern is not automatically protected: you must disclose information that you reasonably believe is in the public interest and tends to show one of the listed types of wrongdoing, and you must take it to the right person. A purely personal complaint about your own pay or contract is usually a grievance, not whistleblowing. This guide explains the rules, including the 2026 changes.
At a glance: Nexis CPD’s £9 Employment Law course explains employment status, workers’ core rights, fair dismissal and where to get authoritative help, giving managers and staff the context whistleblowing law sits in. It is CPD accredited and 100% online with a verifiable e-certificate, and any three courses cost £18. It is awareness training and general information, not legal advice or a regulated qualification.
Is whistleblowing protected by law in the UK?
It is, and the protection has been in force since 2 July 1999. The Public Interest Disclosure Act 1998 inserted a new Part IVA (sections 43A to 43L) into the Employment Rights Act 1996, together with a right not to suffer detriment and a special unfair dismissal rule. The Act applies in England, Scotland and Wales; Northern Ireland has its own equivalent, the Public Interest Disclosure (Northern Ireland) Order 1998.
The key phrase is protected disclosure. Under section 43A, that means a “qualifying disclosure” made by a worker in accordance with one of sections 43C to 43H. So there is a two-part test. First, what you said must qualify: the right kind of information, about the right kind of wrongdoing, which you reasonably believe is in the public interest. Second, you must say it to the right person. Meet both and you are protected from dismissal or punishment for it. Fail either and you may have other rights, but not whistleblowing protection. What matters is the substance of the disclosure, not whether anyone calls it “whistleblowing”.
What counts as a protected disclosure?
The categories are set out in section 43B of the Employment Rights Act 1996. A qualifying disclosure is any disclosure of information which, in the worker’s reasonable belief, is made in the public interest and tends to show one or more of the following, whether it has happened, is happening or is likely to happen:
- A criminal offence, such as fraud, theft or bribery.
- A failure to comply with a legal obligation, a very wide category covering regulatory rules and statutory duties.
- A miscarriage of justice.
- A danger to the health or safety of any individual, such as unsafe working practices or risks to patients.
- Sexual harassment. This category, paragraph (da), was added by the Employment Rights Act 2025 and came into force on 6 April 2026. Section 43L defines it by reference to section 26(2) of the Equality Act 2010: unwanted conduct of a sexual nature.
- Damage to the environment.
- Deliberate concealment of information about any of the above.
Three details matter in practice. First, “reasonable belief”: you do not have to be right or prove the wrongdoing, but your belief must be genuine and reasonable, so an honest mistake can still be protected. Second, “disclosure of information”: a vague expression of unease may not qualify, whereas concrete facts about what happened, when and who was involved put you on firmer ground. Third, section 43B(2) says it does not matter whether the wrongdoing happened in the UK or abroad. A disclosure is not protected, however, if making it is itself a criminal offence.
Is a personal grievance covered by whistleblowing law?
Usually not, and this catches out more people than anything else. Since 25 June 2013, when the Enterprise and Regulatory Reform Act 2013 amended section 43B, the worker must reasonably believe the disclosure is “made in the public interest”. The government’s whistleblowing guidance on GOV.UK says personal grievances, such as bullying, harassment or discrimination aimed at you, are not covered by whistleblowing law unless your particular case is in the public interest.
A complaint that your manager miscalculated your own overtime is therefore normally a grievance. A disclosure that the payroll system is underpaying a large group of staff, or that the company is deliberately breaking minimum wage law, is far more likely to pass the test, because it affects others. The line is not always obvious, and one complaint can sometimes be both a grievance and a protected disclosure; the circumstances as a whole, including how many people are affected and how serious the wrongdoing is, are relevant.
Falling outside whistleblowing law does not leave you without options. Personal complaints belong in the grievance procedure, and discrimination, harassment and victimisation have their own protection under the Equality Act 2010. Our guides to disciplinary and grievance procedures and to whether bullying is illegal at work explain those routes. Sexual harassment is now different: because it is a listed category, reporting it can be a protected disclosure if the public interest test and other conditions are met.
Who is protected as a whistleblower?
Protection covers “workers”, which is wider than “employees”. The definition in section 230(3) includes anyone with a contract of employment and anyone who has agreed to do work personally for someone who is not their client or customer. Section 43K extends it further for whistleblowing, to cover agency workers, some contractors whose terms are set by the organisation they work for, certain NHS practitioners working under NHS contracts, student nurses and midwives on placement, and people on work experience or training schemes.
Acas lists those who are generally not protected: people who are genuinely self-employed, volunteers without a contract, non-executive directors and members of the armed forces. Employers can let such people use their whistleblowing procedure, which is good practice, but Acas notes that does not give them legal protection.
Who can you report a concern to and still be protected?
The law sets up a tiered system: the closer the recipient is to the problem, the easier the conditions.
- Your employer (section 43C). The default and simplest route. It includes using a procedure your employer has authorised, such as an external hotline, and raising the matter with another person legally responsible for the wrongdoing.
- A legal adviser (section 43D), in the course of getting legal advice.
- A minister (section 43E), if your employer is a body whose members are appointed by a minister.
- A prescribed person (section 43F). A regulator or other body named in law. You must reasonably believe the matter is within its remit and that the information is substantially true, a slightly higher bar than for your employer.
- Anyone else (sections 43G and 43H), such as the police or the media, under much stricter conditions explained below.
The government publishes the list of prescribed people and bodies on GOV.UK, last updated in September 2026. Examples include the Health and Safety Executive for workplace health and safety, the Care Quality Commission for health and social care, the Financial Conduct Authority for financial services, HMRC for tax, the Environment Agency, the Information Commissioner, the Equality and Human Rights Commission, and professional regulators such as the General Medical Council and the Nursing and Midwifery Council. Choosing the right body matters, because a disclosure sent to a regulator with no remit over it may not meet section 43F.
Can you go to the media and still be protected?
Sometimes, but it is the riskiest route and the law deliberately makes it harder. Under section 43G, a wider disclosure is protected only if you reasonably believe the information is substantially true, you are not acting for personal gain, it is reasonable in all the circumstances, and one of three preconditions applies: you reasonably believe you would suffer detriment if you went to your employer or a prescribed person; there is no prescribed person and you reasonably believe evidence would be concealed or destroyed; or you have already raised substantially the same information with your employer or a prescribed person.
In judging reasonableness, a tribunal must consider who you told, how serious the wrongdoing is, whether it is continuing, any breach of confidence owed to others, how earlier disclosures were handled, and whether you followed your employer’s procedure. Section 43H drops the preconditions for failures of an “exceptionally serious nature”, but the other conditions remain. Anyone thinking about going public should get advice first, because an unprotected disclosure to the press can leave you open to disciplinary action.
What protection do whistleblowers get?
Protection from detriment. Section 47B gives a worker the right not to be subjected to any detriment, by any act or deliberate failure to act, on the ground that they made a protected disclosure. Acas gives examples such as bullying, being denied training or promotion, or having hours cut without good reason. Since 2013 this also covers detriment by fellow workers and agents, and the employer is treated as having done it too unless it shows it took all reasonable steps to prevent it. At a tribunal, section 48(2) puts the burden on the employer to show why it acted as it did.
Automatically unfair dismissal. Under section 103A, an employee is automatically unfairly dismissed if the reason, or principal reason, for dismissal is that they made a protected disclosure. Three features make this unusually strong:
- No qualifying service. Section 108(3)(ff) removes the usual continuous employment requirement, so protection applies from day one.
- No compensation cap. The ordinary compensatory award is capped at the lower of £123,543 (the figure from 6 April 2026) or 52 weeks’ pay, but section 124(1A) disapplies the cap for section 103A dismissals.
- Interim relief. Under section 128, a dismissed employee can apply for interim relief, which, if granted, can keep their employment, or at least their pay, continuing until the case is decided. The application must be made within seven days of the dismissal date.
Workers who are not employees cannot claim unfair dismissal, but having their contract ended because of a protected disclosure is a detriment they can claim for under section 47B.
Does a whistleblower have to act in good faith?
Not as a condition of protection. Section 18 of the Enterprise and Regulatory Reform Act 2013 removed the old “good faith” requirement in 2013, alongside the new public interest test, so a disclosure made partly out of spite can still be protected. Motive still affects money, though: sections 49(6A) and 123(6A) let a tribunal reduce compensation by up to 25% if the disclosure was not made in good faith and it is just and equitable to do so. For wider disclosures under sections 43G and 43H, not acting for personal gain also remains a condition of protection.
Can an NDA or gagging clause stop you whistleblowing?
No. Section 43J makes any provision in an agreement between a worker and their employer void “in so far as it purports to preclude the worker from making a protected disclosure”. That includes confidentiality clauses in contracts and settlement agreements. Two qualifications apply: it only protects disclosures that meet the legal test, so a confidentiality clause can still bite on an unprotected leak, and it voids only the offending part, not the whole agreement. Employers should make the carve-out explicit so staff are not misled into thinking they cannot speak to a regulator.
How long do you have to bring a whistleblowing claim?
The time limit changed on 1 October 2026. The Employment Rights Act 2025 extended the deadline for most tribunal claims, including whistleblowing detriment under section 48 and unfair dismissal under section 111, from three months to six. The commencement regulations (S.I. 2026/954) keep the old limit where the relevant date was before 1 October 2026:
- Dismissal or detriment on or after 1 October 2026: six months less one day, from the effective date of termination or from the act complained of (or the last in a series of similar acts).
- Dismissal or detriment before 1 October 2026: three months less one day.
You must normally notify Acas for early conciliation before lodging a claim. Acas explains that the time limit pauses during early conciliation if you contact Acas within the original deadline. The seven-day interim relief deadline is separate. Some guidance written before October 2026 still quotes three months, so if you are near a deadline, check with Acas or take advice quickly.
How do you raise a whistleblowing concern safely?
Most whistleblowing never goes near a tribunal; it is resolved when the right person hears the concern early. These steps give you the best chance of being heard and staying protected:
- Check your whistleblowing policy. It should say who to contact, including an alternative if your line manager is involved. Using an authorised procedure counts as disclosing to your employer.
- Get confidential advice early. The charity Protect runs a free, confidential advice line for workers, Acas can explain your rights, and a trade union can help. Speaking to a lawyer for advice is itself protected.
- Stick to facts. Describe what you saw or heard, when and where, and why it worries you. You do not need proof, and you should not gather evidence in ways that break the law or your employer’s data rules.
- Say why it matters to others. Explain who could be affected, such as patients, customers, colleagues or the public. This helps show the public interest.
- Put it in writing and keep a copy. A short, dated email makes it much easier to show later what you disclosed and to whom.
- Ask for confidentiality if you want it. Confidential reporting usually works better than anonymity; GOV.UK warns that if you report anonymously it may be harder to show later unfair treatment was caused by your disclosure.
- Escalate in steps. If nothing happens, or you reasonably fear reprisal, consider the relevant prescribed person. Take advice before going to the media.
- Record any reprisals and watch the clock. Note changes in how you are treated, with dates, and contact Acas well within the time limit if you need to make a claim.
What should employers do about whistleblowing?
The government’s guidance for employers confirms there is no legal requirement to have a whistleblowing policy, but warns that going without one risks wrongdoing going undetected, reputational damage and legal proceedings. Concerns dealt with early are far cheaper than problems uncovered by a regulator or a tribunal. An effective approach usually includes:
- A clear policy explaining what can be raised, who to contact, alternatives if a manager is involved, and the right to go to a prescribed person.
- A safe route, with named, trained contacts and ideally a confidential channel outside the line management chain.
- No retaliation. Because employers are liable for detriment by colleagues unless they took all reasonable steps to prevent it, training staff and acting on victimisation is part of the employer’s defence.
- Investigation and feedback. Record the concern, investigate proportionately, and tell the person what you can about the outcome. Silence is a common reason people go outside.
- Checked settlement agreements and NDAs, so none appear to prevent protected disclosures.
The new sexual harassment category links whistleblowing to the employer’s duty under section 40A of the Equality Act 2010 to take reasonable steps to prevent sexual harassment; a worker sidelined after reporting it may now have a whistleblowing claim as well as a victimisation claim. Our guide to sexual harassment in the workplace covers that duty, and HR teams can see how this training fits into professional development in our note on CPD requirements for HR professionals.
How does Freedom to Speak Up work in the NHS?
Healthcare shows how a sector can build on the legal minimum. Following Sir Robert Francis’s Freedom to Speak Up review, published in February 2015, NHS organisations introduced Freedom to Speak Up Guardians: designated people who listen to staff concerns, support them and help the organisation learn. The National Guardian’s Office describes speaking up as being about “anything that gets in the way of doing a great job”, deliberately wider than the legal definition of a protected disclosure.
The national arrangements have recently changed. NHS England confirmed that the National Guardian’s Office would close at the end of June 2026, with NHS England taking on some of its activities from 1 July 2026 and healthcare organisations taking greater responsibility for their own arrangements. The lesson for other sectors is that a named, trusted route to raise concerns is what makes the legal protections work in practice.
Help your team speak up safely and handle concerns properly
Nexis CPD’s Employment Law course gives managers, HR and staff a plain-English grounding in employment status, core workplace rights, discipline, grievances and dismissal, and where to get authoritative help, which is the legal backdrop to handling a whistleblowing concern fairly. It pairs well with our Duty of Care course, whose module on incidents, safeguarding and whistleblowing helps staff in care and support roles recognise when and how to raise a concern, and our Bullying and Harassment in the Workplace course, which covers victimisation, the Worker Protection Act 2023 and the role of managers when someone reports harassment. Taken together, the three cover the legal framework, the routes for raising concerns, and the behaviours that stop people suffering for speaking up, and you can take all three as a bundle.
£9 per course. CPD accredited, 100% online, verifiable e-certificate. Pay for 2, get 3 — any 3 courses for £18. These are CPD-accredited awareness courses to support your organisation’s policies and training, not Ofqual-regulated qualifications.
Frequently asked questions
Is whistleblowing protected by law in the UK?
Yes, but only if it is a protected disclosure under Part IVA of the Employment Rights Act 1996, added by the Public Interest Disclosure Act 1998. The worker must disclose information they reasonably believe is in the public interest and tends to show a listed wrongdoing, such as a crime, a breach of a legal obligation, a danger to health and safety or sexual harassment, and must make it to an appropriate person such as their employer or a prescribed regulator.
Is a personal grievance protected as whistleblowing?
Usually not. Since 2013 the worker must reasonably believe the disclosure is in the public interest, so a complaint that only affects you, such as a dispute about your own pay, is normally a grievance. It may still be protected if it is genuinely in the public interest, and it may be covered by other law such as the Equality Act 2010.
Can I be sacked for whistleblowing?
If you are an employee and the main reason for your dismissal is that you made a protected disclosure, the dismissal is automatically unfair under section 103A of the Employment Rights Act 1996. No minimum length of service is needed and the usual compensation cap does not apply. Workers who are not employees are protected from detriment, including having their contract ended.
Is sexual harassment a whistleblowing category?
Yes. Since 6 April 2026, the Employment Rights Act 2025 has added sexual harassment to the list of wrongdoing in section 43B of the Employment Rights Act 1996, provided the worker reasonably believes the disclosure is in the public interest and the other conditions are met.
Can an NDA stop me blowing the whistle?
No. Section 43J of the Employment Rights Act 1996 makes any term in an agreement between a worker and employer void so far as it tries to stop a protected disclosure, including in settlement agreements. It only protects disclosures that meet the legal test, so take advice before disclosing confidential information outside the organisation.
How long do I have to bring a whistleblowing claim?
For a dismissal or detriment on or after 1 October 2026, the limit is six months less one day; for earlier events it is three months less one day. You must normally notify Acas for early conciliation first, which pauses the clock, and an interim relief application must be made within seven days of dismissal.
This article is general information about whistleblowing law in England, Scotland and Wales and is not legal advice. Northern Ireland has separate legislation. Whether a disclosure is protected depends on the specific facts, so for an individual situation contact Acas, the whistleblowing charity Protect, a trade union or a qualified legal adviser. These Nexis CPD courses are CPD-accredited awareness training, not Ofqual-regulated qualifications.