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startup non-compete agreement uk

Non-Compete Agreement for UK Startups

A startup non-compete agreement UK founders actually enforce needs to be more than a copy-paste template. UK courts will strike down non-competes that are too broad, too long, or not tied to a legitimate business interest — and that happens more often than most founders realise. Whether you're bringing on a co-founder, hiring early employees, or onboarding a contractor with access to your customer list or proprietary tech, you need a clause that's proportionate and defensible. This page explains what makes a non-compete enforceable under English law, what to include for a startup context specifically, and how Atornee helps you draft or review one without paying solicitor rates for a first draft. If your situation involves senior hires, equity holders, or cross-border teams, we'll also tell you honestly when you should escalate to a qualified solicitor.

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Why this matters

Most startup founders either skip non-competes entirely or copy a clause from a US template that won't hold up in a UK court. The real problem: you've shared your roadmap, your customer pipeline, or your codebase with someone — and now they're leaving. A poorly drafted non-compete gives you false confidence. It looks protective on paper but gets thrown out the moment it's challenged. UK courts apply a strict reasonableness test. Too wide a geographic scope, too long a duration, or no clear legitimate interest to protect, and the clause is void. Startups need lean, targeted restrictions — not boilerplate.

The Atornee approach

Atornee doesn't generate a generic non-compete and call it done. You answer a short set of questions about your business — the role, what the person had access to, your sector, and the duration you need — and Atornee drafts a clause or full agreement tailored to that context. It flags where your proposed restrictions are likely too broad for UK courts, explains why, and suggests tighter alternatives. You can also paste in an existing clause and ask Atornee to review it. It's not a replacement for a solicitor on a complex dispute, but for getting a solid, UK-appropriate first draft reviewed and refined, it's significantly faster and cheaper.

What you get

A UK-specific non-compete agreement drafted around your actual business context — role, sector, and what needs protecting
Plain-English explanation of why each clause is included and where UK courts are likely to push back
Flagging of overly broad restrictions before you send the document, not after it's challenged
Guidance on pairing your non-compete with an NDA or IP assignment clause where relevant
A reviewable draft you can take to a solicitor if the situation escalates — saving time and cost on their end too

Before you sign checklist

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1. Identify exactly what you're protecting — customer lists, source code, supplier relationships, or trade secrets — before drafting anything
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2. Define the role and seniority of the person signing: courts apply stricter scrutiny to restrictions on junior employees
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3. Set a realistic duration — 6 to 12 months is typically defensible for most startup roles; 2 years rarely is
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4. Narrow the geographic scope to where you actually operate or compete, not 'worldwide' by default
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5. Check whether the restriction is being included in an employment contract, a consultancy agreement, or a shareholder agreement — the legal treatment differs
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6. Consider whether you also need a non-solicitation clause covering clients and employees separately from the non-compete
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7. If the person has equity or is a co-founder, escalate to a solicitor — the enforceability analysis is more complex and the stakes are higher

FAQ

Are non-compete agreements enforceable in the UK?

Yes, but only if they pass a reasonableness test under English common law. The restriction must protect a legitimate business interest, be no wider than necessary in scope, geography, and duration, and be reasonable between the parties. Courts will not rewrite an unenforceable clause — they'll void it entirely. This is why getting the drafting right from the start matters.

How long can a non-compete last for a UK startup employee?

There's no fixed legal maximum, but 6 to 12 months is the range most commonly upheld for employees in UK case law. Longer periods are harder to defend unless the person was very senior or had access to genuinely sensitive long-term business information. For contractors or co-founders, the analysis can differ.

Can I use a US non-compete template for my UK startup?

No. US non-compete law varies by state and operates under a completely different legal framework. Some US states enforce very broad restrictions; UK courts do not. Using a US template creates a false sense of protection and is likely to produce a clause that's unenforceable under English law.

Do non-competes apply to contractors and freelancers, not just employees?

Yes, you can include non-compete clauses in contractor or consultancy agreements. However, the enforceability test still applies. Courts will look at the commercial reality of the relationship and whether the restriction is proportionate. For contractors with short engagements, very long restrictions are particularly hard to justify.

What's the difference between a non-compete and a non-solicitation clause?

A non-compete restricts someone from working for or starting a competing business. A non-solicitation clause restricts them from approaching your clients or employees. They serve different purposes and you'll often want both. Non-solicitation clauses are generally easier to enforce because they're narrower in scope.

When should I get a solicitor involved instead of using Atornee?

Use Atornee to draft and review standard non-compete clauses for employees and contractors. Escalate to a qualified solicitor if you're dealing with a co-founder dispute, enforcing a clause through litigation, drafting restrictions tied to a share sale or investment round, or if the person being restricted is based outside the UK.

Related Atornee Guides

Cheap Contract Solicitor Alternative (UK)

Compare broader contract workflow options for UK startups managing multiple agreements.

Cheap Solicitor for NDA (UK)

Pair with your non-compete when confidentiality obligations also need to be covered.

Atornee Use Cases

See how UK founders and operators use Atornee across different contract and legal workflows.

External References

GOV.UK Business and Self-employed

Official UK government guidance on employment and business operations relevant to contract obligations.

UK Legislation

Primary statutory reference for UK contract law and employment legislation underpinning non-compete enforceability.

Trust & Verification Policy

Authored By

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Atornee Editorial Team

UK Contract Research

Reviewed By

C

Compliance Review Desk

UK Business Legal Content QA

Last reviewed on 3/4/2026

"Content is grounded in English common law principles governing restraint of trade clauses and informed by patterns in how UK courts assess non-compete enforceability. Guidance reflects practical drafting considerations for early-stage UK businesses across employment, contractor, and founder contexts."

References & Sources