Non-Compete clause: meaning, risks, and what to negotiate

No — under English law, non-compete clauses are restraints of trade and are presumed unenforceable unless the party relying on them can prove two things: first, that they have a legitimate business interest worth protecting (such as confidential client relationships, trade secrets, or goodwill); and second, that the restriction is reasonable in scope, duration, and geography. Courts will not rewrite an overly broad clause to make it enforceable — they will simply strike it out. A non-compete that is too wide is worth nothing to the party relying on it, while still creating a chilling effect on the restricted party.

A non-compete broadly prohibits the restricted party from engaging in competing activities — working for a competitor, running a competing business, or providing competing services. A non-solicitation clause is narrower — it only prevents the restricted party from actively approaching specified clients, customers, or employees of the other party. Non-solicitation clauses are generally easier to enforce because they are more targeted and proportionate. In most commercial contracts, a non-solicitation clause provides adequate protection for the legitimate interests at stake and is significantly less restrictive than a full non-compete.

There is no fixed rule, but English courts assess duration as part of the overall reasonableness of the restriction. In commercial B2B contracts, post-term restrictions of up to six months are generally defensible for most types of arrangement. Twelve months may be justified where genuinely sensitive client relationships or confidential information are at stake. Restrictions beyond twelve months face increasing scrutiny and require clear justification. The longer the duration, the narrower the scope and geography must be to remain proportionate.

Yes — and this is one of the most significant practical risks of a non-compete clause. A party seeking to enforce a non-compete can apply to court for an interim injunction, which can be granted quickly and without a full hearing on the merits, provided they can show a serious issue to be tried and that the balance of convenience favours granting the order. An injunction can shut down legitimate business activity within days of an application being issued, well before the underlying dispute is resolved. This makes the threat of injunction proceedings a powerful commercial tool even where the non-compete itself might ultimately be found unenforceable at trial.

This is a critical drafting point that is frequently overlooked. Many non-compete clauses state that the restriction applies on termination 'for any reason' — which in principle includes termination caused by the other party's own breach. Under English law, an accepted repudiatory breach by one party may release the other from future obligations, including post-term restrictions, depending on how the clause is drafted. To avoid ambiguity, always negotiate an express carve-out: the non-compete should fall away if the contract is terminated due to the other party's material breach or insolvency.

Not exactly, though the same overarching restraint of trade doctrine applies. Employment non-competes face particularly intense scrutiny because of the power imbalance between employer and employee and the employee's need to earn a living. In B2B contracts between commercial entities, courts give more weight to the agreed allocation of risk and the commercial context — but the requirement to demonstrate a legitimate protectable interest and a proportionate restriction still applies. A non-compete in a B2B services contract is not automatically enforceable simply because both parties are businesses.

Under English law, the categories of legitimate business interest that can justify a non-compete are well established: trade secrets and genuinely confidential information; stable customer or client relationships built up through the contract; and, in some contexts, the goodwill of a business acquired through a sale or merger. A general desire to prevent competition — without a specific protectable interest — is not sufficient. The interest must be one that the law recognises as deserving of protection, and the restriction must be no wider than necessary to protect it.

With caution. Non-competes in freelance and contractor agreements can have a disproportionate impact because contractors typically rely on working across multiple clients in a specialised field. Before accepting, assess how much of your current or anticipated income the restriction would affect, whether the other party has a genuine interest to protect or is simply seeking to lock out competition, whether a narrower non-solicitation clause would meet their stated needs, and whether you are being compensated in any way for the restriction. If the clause is broad and the contract is short-term or low-value, push back firmly — the commercial justification for accepting a meaningful non-compete should be proportionate to the value of the engagement.