What Is a Non-Compete Clause and Can It Be Enforced?

A non-compete clause restricts certain competitive activity after employment or another contractual relationship ends. In employment contracts, enforceability depends on whether the restriction can be legally justified.

This explanation focuses on England and Wales.

Lowdown

A non-compete is a type of restrictive covenant, meaning a contractual restriction on what someone can do after a relationship ends. It may restrict working for a competitor or starting a competing business. Other restrictions may deal with clients, staff or confidential information.^[1]

Non-competes can appear in employment contracts and other commercial agreements.^[2]

Why It Matters

In employment contracts, the starting point is that a non-compete is unenforceable unless the employer can justify it. The restriction must protect a legitimate business interest, such as confidential information or customer relationships, and go no further than reasonably necessary.^[3]

Acas explains that restrictive covenants will not usually be enforceable unless they are clear, specific and time-restricted. The duration, activities covered and geographical or market scope can all matter.^[1]

As at October 2026, there is no automatic three-month statutory limit on employment non-compete clauses. On 9 October 2026, the government announced plans to introduce new legislation restricting their use, particularly to help start-ups and growing businesses recruit workers. The details have not yet been finalised, and the proposed changes are not yet law. For now, enforceability depends on the circumstances and whether the restriction is reasonable.^[3][4]

If you are a contractor, shareholder or business seller, do not assume employment rules apply in exactly the same way. The legal assessment depends on the type of agreement.

Our Conclusion

Check what the non-compete prevents you doing, how long it lasts and how widely it applies. The broader the restriction, the more carefully its justification needs to be considered.

Sources

[1] Acas, Terms restricting a worker's actions — Restrictive covenants

[2] HMRC, Goodwill: restrictive covenants, exclusivity agreements, non-competition agreements etc

[3] Department for Business and Trade, Working paper on options for reform of non-compete clauses in employment contracts

[4] Prime Minister, Speech at the Innovation Nation Summit, 9 October 2026 — non-compete clause reform plans