Are Non-Solicitation Clauses Actually Enforceable In The UK?

Sometimes - but not always. UK courts are cautious about enforcing any restraint of trade, including non-solicitation clauses. The law is on your side if a clause is drafted too widely. But if the clause is reasonable and properly drafted, courts can and do enforce it. For a non-solicitation clause to be enforceable, it must be:

• Designed to protect a legitimate business interest (such as confidential information, client relationships, or key personnel)
• Reasonable in duration and scope (for example: which clients/employees are covered, and what conduct is restricted)
• No wider than necessary (it should only restrict what’s genuinely needed - not operate as a blanket restriction)

A note on context: courts tend to apply stricter scrutiny in employment contracts (because they can restrict someone’s ability to earn a living). In business sale agreements, restraints can sometimes be upheld more readily because the buyer is protecting goodwill they paid for. If a clause goes beyond what’s reasonably necessary - for example, covering people you never dealt with, or lasting for an excessive period without a clear justification - it may be unenforceable. In some cases, a court may be able to remove the problematic wording and enforce what remains, but that depends heavily on how the clause is drafted. If you’re unsure if a clause in your agreement meets these tests, this guide to non-compete and non-solicitation clauses is a great place to start, or you can speak to a contract law expert.

How Do I Spot An Unreasonable Or Overreaching Non-Solicitation Clause?

If you’re reviewing a contract, look out for red flags that suggest the clause may be unfair or less likely to hold up in court. Typical warning signs include:

• Unreasonably long time periods - what’s “reasonable” depends on the context, but longer periods generally need stronger justification (especially in employment)
• Wide coverage - e.g. prohibiting contact with any business contact, rather than limiting it to clients you had direct dealings with or employees you could realistically influence
• Overbroad definitions - terms like “client”, “prospective client”, “business contact”, or “supplier” defined so widely they capture people you never interacted with
• Lack of tailoring - “copy and paste” clauses that don’t relate to the actual risks or job functions involved
• Geography (sometimes) - geography is often less central for non-solicitation (because the restriction usually turns on who you can’t approach), but it can be a red flag if the clause effectively reaches far beyond the business’s real market or footprint without justification

If a clause falls foul of the above, don’t just sign and hope for the best. It’s smart to ask for specific changes while the contract is still being negotiated. You’ll find more on this process in our article on safely amending contracts.

If I’m Bound By A Non-Solicitation Clause, What Are My Options?

If you’ve already signed a contract with a non-solicitation clause and want to understand your options in the UK, your options aren’t necessarily limited to just waiting and watching the clock. Here’s what to consider:

1. Understand Exactly What The Clause Restricts

First, read the clause carefully. What does “solicitation” include? Direct approaches, indirect approaches, advertising, announcements, responding to inbound requests, or encouraging others to approach on your behalf? Sometimes, “no poaching” employees and “no contacting” clients are bundled together - and you’ll need to assess each. Also check whether your contract includes a non-dealing clause as well. Non-dealing is different from non-solicitation, and can restrict doing business with certain clients even if they approach you first.

2. Assess Whether The Clause Is Enforceable Or Over-broad

If it seems unreasonable (e.g. too long, too wide, covers people you never dealt with, or goes beyond what’s needed to protect a real interest), you may have a strong argument that the clause is unenforceable, or that it should only apply in a narrower form. Courts are generally reluctant to uphold broad, untailored restrictions, especially in employment settings. In business sale contexts, the court may be more willing to enforce restrictions that reasonably protect the goodwill sold - but the clause still needs to be proportionate.

3. Attempt To Negotiate (Before Or After Signing)

If you haven’t signed yet, ask for the clause to be narrowed or clarified. If the business relationship is ending amicably, you can sometimes negotiate a waiver or variation - especially if you can show the wording is broader than necessary for the business to protect its interests. For tips on updating or amending contract terms safely, see our overview of contract amendment processes.

4. Consider If “Solicitation” Has Actually Occurred

Sometimes, merely taking a new job or starting a new business is not enough to breach a clause. Generally, you have to actively solicit - as in, approach clients or staff (or encourage them to move) in a way captured by the clause. That said, “general marketing” is not automatically safe. Public advertising may be lower risk than direct outreach, but it can still be argued to be solicitation if it is clearly targeted at restricted clients or designed to prompt them to move. Whether something counts as solicitation depends heavily on the contract wording and the facts. If a client contacts you on their own (without prompting), that may reduce the risk under a pure non-solicitation clause - but a non-dealing clause may change the analysis.

5. Challenge The Clause If You’re Threatened With Legal Action

If things escalate and you receive a letter threatening action, don’t panic. You have options:

• Ask how the clause is said to be necessary and reasonable
• Point out any overreach (e.g. too long, too broad, covers irrelevant parties)
• Ask for evidence of real risk or harm (not just broad assertions)
• Seek legal advice before responding further if the threat is serious

In practice, the party seeking to enforce the clause typically needs to show it protects a legitimate business interest and goes no further than necessary. If they can’t, the court is less likely to enforce it.

How To Lawfully Work Around A Non-Solicitation Clause

In some cases, you’re not looking to breach a clause - you just want to know how you can keep working or growing your business without risking a dispute. Here are smart strategies:

• Define your target audience carefully: focus on new markets, regions, or clients outside the restricted group
• Avoid direct approaches to restricted parties: if the clause restricts approaching certain clients or staff, don’t contact them directly or indirectly
• Be cautious with marketing: broad, public-facing marketing may be lower risk than targeted outreach, but it can become risky if it’s clearly directed at restricted clients
• Keep business records: if a former client finds you organically, keep records showing you did not initiate contact (and check whether a non-dealing clause changes the risk)
• Negotiate a waiver or release: sometimes a written waiver, deed of variation, or settlement removes uncertainty and reduces the risk of legal action

Sometimes a simple conversation and a professionally drafted Deed of Termination or variation agreement can save a lot of legal hassle.

What Does The Court Consider If There’s A Dispute?

UK courts will look at whether the clause goes further than reasonably necessary to protect a genuine business interest. Factors that often matter include:

• Whether the clause effectively prevents you from earning a living in your field (particularly in employment situations)
• Whether it covers clients or staff you never actually dealt with or could not realistically influence
• Whether the duration is longer than needed to protect the relationships or goodwill at risk
• Whether the clause is clearly drafted and properly tailored to the role or transaction
• In a business sale, whether the restraint reasonably protects the goodwill purchased

If the clause is unclear or ambiguous, that can increase enforceability risk for the party trying to rely on it. Courts generally expect restrictive covenants to be clearly drafted and justified. If the clause is over-broad, a court may find it unenforceable. In some cases, a court may be able to remove the offending words and enforce the rest, but that depends on the drafting and whether what remains still makes sense and is fair.

Key Takeaways

• Non-solicitation clauses are only enforceable if they’re reasonable, clear, and genuinely necessary to protect a legitimate business interest.
• Reasonableness usually turns on duration and scope (who is covered and what conduct is restricted), and context matters: employment clauses are scrutinised more strictly than business sale restraints.
• If you’re bound by one, check exactly what it restricts (and whether there is also a non-dealing clause). If you’re accused of breaching it, the other party usually needs to justify why the restriction is necessary and proportionate.
• “General marketing” isn’t automatically safe - it can still be risky if it is targeted in a way that amounts to solicitation under the clause.
• Before you take steps that could be seen as solicitation, get advice. Early legal guidance can reduce the risk of an injunction, damages claim, or costly dispute.

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If you want tailored advice or help reviewing a non-solicitation clause, Sprintlaw UK’s expert contract lawyers are here to help. You can reach us at 08081347754 or team@sprintlaw.co.uk for a free, no-obligations chat.