Defamation Law in the United Kingdom

Last revised by LocalRoot - 22 Jun 2026, 12:20

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Defamation law in the United Kingdom covers civil claims about published statements that damage a person's or organisation's reputation. It sits between two competing interests: protection of reputation and freedom of expression.

The law is not identical across the United Kingdom. England and Wales are mainly governed by common law and the Defamation Act 2013. Scotland has its own modern statute, the Defamation and Malicious Publication (Scotland) Act 2021. Northern Ireland has separate legislation, including the Defamation Act (Northern Ireland) 2022. A claim therefore depends on the jurisdiction, the words used, the audience and the evidence of harm.

Basic Meaning

Defamation is usually concerned with a statement that tends to lower a person in the estimation of ordinary people. The statement must refer to the claimant and must be published to at least one person other than the claimant.

Traditional English law distinguishes between libel and slander. Libel usually involves written, broadcast or otherwise permanent publication. Slander usually involves spoken or more temporary publication. In modern online cases the distinction is often less important than the publication, meaning, identification and harm caused by the words.

England and Wales

The Defamation Act 2013 changed the law in England and Wales. Section 1 introduced the serious harm requirement. A statement is not defamatory unless its publication has caused or is likely to cause serious harm to the claimant's reputation. For a body that trades for profit, serious harm requires serious financial loss or likely serious financial loss.

The Act also put several major defences into statutory form. These include truth, honest opinion and publication on a matter of public interest. It also contains provisions about operators of websites, peer-reviewed scientific or academic statements, reports protected by privilege, single publication and jurisdiction.

Scotland

Scotland's law was updated by the Defamation and Malicious Publication (Scotland) Act 2021. The Act modernised Scots defamation law, placed several rules on a statutory footing and replaced older common law delicts of verbal injury with malicious publication provisions.

The Scottish Act also uses a serious harm threshold. It reflects some of the same policy concerns as the 2013 Act in England and Wales, but it is a separate statute and should not be treated as a direct copy.

Northern Ireland

Northern Ireland did not simply adopt the Defamation Act 2013. Its law developed separately and was later amended by the Defamation Act (Northern Ireland) 2022. That Act introduced statutory defences including truth, honest opinion and publication on a matter of public interest.

The Northern Ireland Human Rights Commission has noted continuing debate about whether Northern Ireland law should include a serious harm threshold similar to other UK jurisdictions. This is one reason a UK-wide summary of defamation law has to be careful about jurisdiction.

Defences

Common defences include:

Truth: the defendant shows that the imputation complained of is substantially true.
Honest opinion: the words are recognisable as opinion and an honest person could have held that opinion on the basis indicated.
Public interest: the defendant shows that the statement was, or formed part of, a statement on a matter of public interest and that they reasonably believed publication was in the public interest.
Privilege: some reports or statements are protected because of where or how they were made, such as court reports or parliamentary proceedings.

The exact wording and availability of each defence depends on the jurisdiction and the facts.

Online Publication

Online defamation can involve social media posts, website articles, videos, comments, reviews, forum posts and search results. The main questions remain practical: what was published, what did it mean, who was identified, who saw it, and what harm did it cause?

Online publication can also raise issues about website operators, republication, jurisdiction and limitation periods. A post that appears casual may still be treated as publication if it identifies someone and damages reputation.

Examples

Calling a business dishonest in a public review may become defamatory if the allegation is false and causes serious reputational or financial harm. Saying that a politician's policy is wrong is usually opinion and political criticism, but falsely alleging criminal conduct may be different. Publishing accurate notes of court proceedings may be protected by privilege if the statutory conditions are met.

The line between fact and opinion matters. "I disliked the service" is different from "the owner stole my money". The first is normally a value judgement. The second alleges misconduct and may require proof.

References

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