Restrictive Covenant (UK)
A contractual clause in UK employment law that limits an employee's activities after leaving a company, including non-compete, non-solicitation, and non-dealing restrictions, enforceable only if the employer proves the clause protects a legitimate business interest and is reasonable in scope.
- What Is a Restrictive Covenant in UK Employment Law?
- Types of Restrictive Covenants in UK Employment
- The Reasonableness Test
- Interaction with Garden Leave
- Enforcing Restrictive Covenants in the UK
- Drafting Enforceable Restrictive Covenants for UK Contracts
- Proposed UK Reforms and Future Direction
- Frequently Asked Questions About Restrictive Covenants in the UK
What Is a Restrictive Covenant in UK Employment Law?
Key Takeaways
- ✓A restrictive covenant is any clause in an employment contract that limits what an employee can do after leaving. UK law recognizes several types: non-compete, non-solicitation, non-dealing, and non-poaching.
- ✓UK courts start from the position that restrictive covenants are void as restraints of trade. The employer must prove each clause is reasonable and necessary to protect a legitimate business interest.
- ✓The reasonableness test looks at three factors: whether there's a legitimate interest to protect, whether the restriction goes no further than necessary, and whether it's reasonable in the public interest.
- ✓Garden leave clauses and restrictive covenants can overlap. Courts may reduce the enforceable period of a restrictive covenant by the length of garden leave already served.
- ✓The UK Government proposed limiting non-compete covenants to 3 months in 2023 but hasn't enacted legislation. Current law still relies on the common law reasonableness test.
In UK employment law, a restrictive covenant is a contractual term that restricts an employee's freedom to work or conduct business after their employment ends. Unlike the US, where enforceability varies by state, the UK applies a single common law framework across England, Wales, and Scotland (with minor differences in Scottish terminology). The starting position under English common law is that restraints of trade are void and unenforceable. This has been the rule since the Nordenfelt v Maxim Nordenfelt Guns and Ammunition Company case in 1894. To enforce a restrictive covenant, the employer must prove it protects a legitimate business interest (trade secrets, client connections, or workforce stability) and that it goes no further than reasonably necessary to protect that interest. This is a high bar. UK courts don't rewrite overbroad covenants. If a clause is unreasonable, it's struck out entirely. There's no 'blue pencil' doctrine that lets courts narrow the restriction, unless the clause contains clearly severable standalone provisions.
Types of Restrictive Covenants in UK Employment
UK employment contracts typically include several types of restrictive covenants, each with different scope and enforceability thresholds.
| Type | What It Restricts | Enforceability Level | Typical Duration |
|---|---|---|---|
| Non-Compete | Working for or setting up a competing business | Hardest to enforce. Broadest restriction. | 6-12 months |
| Non-Solicitation | Actively approaching the employer's clients or customers | Moderately enforceable. Must specify which clients. | 6-12 months |
| Non-Dealing | Doing business with the employer's clients, even if the client initiates contact | More enforceable than non-compete, broader than non-solicitation | 6-12 months |
| Non-Poaching | Recruiting or enticing away the employer's employees | Generally enforceable if limited to specific teams or senior staff | 6-12 months |
| Confidentiality | Using or disclosing the employer's confidential information | Highly enforceable. Can be indefinite. | Unlimited (no expiry needed) |
The Reasonableness Test
This is the central test UK courts apply when deciding whether to enforce a restrictive covenant. Getting it right at the drafting stage is far cheaper than litigating it later.
Legitimate business interest
The employer must identify a specific interest worth protecting. UK courts recognize three categories: trade secrets and confidential information (not just general skill and knowledge), client and customer connections (relationships the employee built or maintained on behalf of the employer), and workforce stability (preventing a senior leaver from stripping out an entire team). A restrictive covenant that doesn't protect one of these interests will fail at the first hurdle.
No wider than necessary
Even if a legitimate interest exists, the restriction must be the minimum necessary to protect it. A 12-month non-compete for a junior account executive with a 6-month client relationship cycle is likely too long. A 6-month non-solicitation limited to clients the employee personally serviced in the last 12 months is more likely to survive. Courts look at the employee's actual role, seniority, and the realistic threat their departure poses.
Public interest
Courts also consider whether enforcement would harm the public interest. This factor rarely defeats an otherwise reasonable covenant, but it can be relevant in specialized fields (healthcare, for example) where restricting a professional's ability to practice could deprive the public of needed services.
Judged at the time of signing
Critically, UK courts assess reasonableness at the time the contract was signed, not at the time of enforcement. A covenant that was reasonable when an employee was a junior salesperson may be unreasonable by the time they've been promoted to sales director, since the employer should have updated the covenant to match the new role. This is why regular contract reviews matter.
Interaction with Garden Leave
Garden leave and restrictive covenants serve overlapping purposes, and UK courts increasingly consider them together when assessing enforcement.
What garden leave achieves
During garden leave, the employee remains employed and on full pay but doesn't attend work or contact clients. The employer retains the right to enforce during-employment obligations (confidentiality, exclusivity, non-competition) without needing a separate post-termination covenant. A three-month garden leave period provides three months of protection automatically, since the employee is still contractually bound as an employee.
The overlap problem
If an employee serves three months of garden leave followed by a 12-month non-compete, the total restriction is 15 months. Courts may view this as excessive and reduce the post-termination covenant accordingly. In TFS Derivatives Ltd v. Morgan (2004), the court indicated it would factor garden leave into the overall assessment of reasonableness. Best practice is to draft the non-compete period to be inclusive of, not in addition to, any garden leave served.
Enforcing Restrictive Covenants in the UK
If a former employee breaches a restrictive covenant, the employer has several legal options, but speed is essential.
Interim injunctions
The primary remedy is an interim (temporary) injunction from the High Court, preventing the ex-employee from continuing the restricted activity until a full trial. The employer must act quickly: delays of even a few weeks can undermine the application. The court applies the American Cyanamid test: is there a serious question to be tried, would damages be an inadequate remedy, and does the balance of convenience favor granting the injunction?
Damages
If the employer can prove financial loss from the breach (lost clients, diverted revenue), they can claim damages. Proving the exact loss caused by a covenant breach is often difficult, which is why injunctions are the preferred remedy. Some contracts include agreed damages clauses, but UK courts will only enforce these if they represent a genuine pre-estimate of loss, not a penalty.
Springboard relief
In cases where a former employee gained an unfair advantage by breaching their covenant (for example, by soliciting clients during the notice period before the covenant kicked in), courts can grant 'springboard' injunctions that extend beyond the covenant period. This prevents the wrongdoer from profiting from the breach.
Drafting Enforceable Restrictive Covenants for UK Contracts
UK courts are strict about covenant drafting. A poorly worded clause is worse than no clause at all because it creates false confidence.
- Draft separate, standalone clauses for each type of restriction (non-compete, non-solicitation, non-dealing, non-poaching). If one falls, the others can still survive.
- Limit non-solicitation and non-dealing clauses to clients the employee personally dealt with in the 12 months before departure. Broader scope weakens enforceability.
- Keep non-compete durations as short as possible. Six months is safer than 12. Twelve months is the realistic maximum for senior roles.
- Define 'competing business' precisely. Vague definitions like 'any business in a similar field' are vulnerable to challenge.
- Include a severability clause so courts can sever an unreasonable provision without voiding the entire set of covenants.
- Review and update covenants when an employee is promoted, changes roles, or takes on new responsibilities. Stale covenants drafted for a junior role won't protect senior-level interests.
- Consider whether garden leave alone provides sufficient protection, making a post-termination non-compete unnecessary. This avoids the overlap issue entirely.
- Get legal advice from a UK employment solicitor. Covenant law is highly fact-specific, and generic templates from US firms rarely meet UK standards.
Proposed UK Reforms and Future Direction
The UK Government has signaled interest in reforming restrictive covenants, though progress has been slow.
The 3-month cap proposal
In May 2023, the UK Government announced plans to limit post-employment non-compete clauses to a maximum of 3 months. The stated goal was to boost innovation, worker mobility, and economic dynamism. The proposal would not affect other types of restrictive covenants (non-solicitation, non-dealing, confidentiality). As of early 2026, no legislation has been introduced, and the proposal appears to have been deprioritized.
Impact on current practice
Even without legislation, the proposal has influenced employer behavior. Many companies are already shortening non-compete periods and relying more on non-solicitation and confidentiality clauses instead. Employment lawyers report that courts are looking more critically at lengthy non-competes, even in the absence of new statutory limits. The direction of travel is clear: shorter, narrower restrictions with a heavier burden on employers to justify enforcement.
Frequently Asked Questions
Can a UK employer enforce a restrictive covenant if they breached the employment contract first?
Do restrictive covenants apply if I'm made redundant?
Can my new employer be liable if I breach my restrictive covenant?
Are restrictive covenants in settlement agreements treated differently?
What happens if my restrictive covenant is too broadly drafted?
Written by Adithyan RK