This guide is maintained as a current resource for September 2026 and covers only the laws of England and Wales. Information is for general guidance, not legal advice. Consult a qualified solicitor for advice specific to your situation.
Worried about a non-compete clause in your contract? Learn the legal tests for enforceability, what constitutes a legitimate business interest, and how to assess your contractual limits.
Restrictive covenants are clauses in employment contracts that limit what employees can do during and often after their employment. They are commonly used to protect an employer's legitimate business interests such as confidential information, client relationships, and workforce stability. However, these clauses are subject to strict legal rules and are only enforceable in limited circumstances. This article explains the legal framework governing restrictive covenants, the different types of covenants, how enforceability is assessed, practical considerations for both employers and employees, and steps to take if enforcement is threatened.
What Are Restrictive Covenants?
A restrictive covenant is a contractual provision that restricts an employee's activities either during employment or after it ends. Common restrictions include:
- Non‑competition clauses: prevent employees from working for or setting up a business that competes with their former employer within a specified period or territory.
- Non‑solicitation of clients: bar former employees from approaching clients or customers of the employer after leaving.
- Non‑dealing clauses: prevent dealing with specified clients or customers, even if the client initiates contact.
- Non‑poaching of employees: restrict attempts to recruit or entice colleagues away from the former employer.
- Confidentiality clauses: restrict use or disclosure of confidential information.
Restrictive covenants may appear in the main contract of employment or in post‑termination restrictions, which apply after the employment has ended.
Legal Basis: Restraint of Trade
Restrictive covenants are not automatically enforceable. Under English law, they are treated as restraints of trade, which are prima facie void unless justified as reasonable and necessary to protect a legitimate business interest. Courts have developed the principles governing enforceability through case law rather than statute.
To be enforceable, a restrictive covenant must satisfy two primary criteria:
- Protection of a Legitimate Business Interest – The employer must show it has a real business interest worthy of protection, beyond mere desire to prevent competition.
- Reasonableness in Scope, Duration and Geography – The covenant must not go further than reasonably necessary to protect that interest.
Examples of legitimate business interests include trade secrets, confidential information, connections with clients or customers, and stability of the workforce. Mere protection from competition alone is not sufficient.
How Enforceability Is Assessed
Courts and tribunals assess restrictive covenants on a case‑by‑case basis, considering a range of factors:
Scope of Restriction
The activity constrained must be clearly defined and necessary to protect legitimate interests. Broad language that restrains all forms of competition may be struck down as unreasonable.
Duration of Restriction
Duration must relate to the risk period for the business interest. Commonly, 3 to 12 months post‑termination is accepted, with longer durations typically only for senior roles with significant access to confidential information or key relationships.
Geographic Limits
Where relevant, geographic limitations should reflect where the employer actually conducts business. Overly broad territorial restrictions (for example, worldwide for a local business) may be unenforceable.
Consideration
For covenants included when the contract is first entered into, ordinary employment benefits (salary and role) usually provide sufficient consideration. However, where restrictive covenants are added later during employment, the employer may need to offer additional consideration such as a pay rise or bonus to make them binding.
Common Types of Restrictive Covenants
Non‑Competition Clauses
These are the most restrictive and hardest to enforce because they can prevent employees from working in their chosen field after leaving. Employers must demonstrate that they are necessary to protect legitimate business interests and that the duration and scope are reasonable. Courts often view lengthy or overly broad non‑competes with scepticism.
Non‑Solicitation and Non‑Dealing Clauses
Non‑solicitation clauses can be more enforceable than non‑competition clauses because they focus on specific client relationships rather than broad activity bans. Non‑dealing clauses, which prohibit any dealings with specified clients regardless of who initiates contact, are more restrictive and face greater scrutiny.
Non‑Poaching Clauses
Clauses preventing recruitment of former colleagues may be enforceable if tailored to protect investment in the workforce. However, restrictions that apply indefinitely or to employees who joined after the individual left are more likely to be struck down.
Confidentiality Clauses
Confidentiality provisions are distinct in that they protect sensitive information rather than restrict competition directly. Properly drafted confidentiality clauses can be enforceable indefinitely, provided they are clear about the information they cover.
Enforcement and Remedies
If an employer believes an employee has breached a restrictive covenant, there are several legal tools available:
- Injunctions: A court order requiring the employee to stop the prohibited activity.
- Damages: Compensation for losses suffered due to the breach.
- Interim Injunctions: Short‑term orders pending a full trial, often granted where there is a serious issue to be tried and a risk of irreparable harm.
Courts interpret the enforceability of restrictive covenants at the time they were agreed, not at the time of enforcement. This emphasises the need for careful drafting and documentation from the outset.
Practical Considerations Before Enforcement
Drafting Best Practice
To maximise enforceability, employers should tailor covenants to the specific role and business needs, define the business interest clearly, limit scope and geography, and justify the duration. Poorly drafted or generic covenants risk being declared void and unenforceable.
Reviewing Existing Contracts
Employers should periodically review restrictive covenants, especially where roles evolve or employees are promoted, to ensure they remain appropriate and enforceable. Updating covenants without appropriate consideration can undermine their validity.
Employee Negotiation and Challenge
Employees should understand that overly restrictive clauses may be unenforceable. Challenging a covenant often begins with legal advice, and can lead to negotiation, redrafting, or legal proceedings if necessary.
Potential Future Changes
The UK Government has proposed reforms to limit or cap non‑compete clauses in employment contracts to enhance job mobility and economic flexibility, though no statutory cap has yet been enacted. Proposed changes include limiting enforceability unless specific criteria are met.
Key Takeaways
Restrictive covenants are important contractual tools that can protect legitimate business interests when appropriate. However, English law places significant limits on their enforceability. To be valid, restrictive covenants must protect a genuine business interest and be reasonable in scope, duration and geography. Employers must draft and review these clauses carefully, and employees should seek to understand and, where necessary, challenge provisions that unreasonably restrict their post‑employment opportunities. Proper understanding of these legal rules helps both employers and employees navigate complex contractual restrictions while balancing commercial and individual interests.
