Five essential documents for setting up your UK startup
Last updated: 25 July 2026
Starting a business in the UK is an exciting venture, but it comes with a fair share of paperwork. Getting your documentation in order from day one isn't just about compliance; it lays a solid foundation for future growth, investment, and operations. Skimping on these initial steps can lead to headaches down the line. Here are five essential legal documents every UK startup needs to consider from the outset.
1. Articles of association
Think of the Articles of Association as your company's rulebook. It's a legally binding document that governs how your company is run, owned, and managed. It covers critical aspects like director appointments, shareholder rights, decision-making processes, and the transfer of shares. While you can opt for the standard model articles provided by Companies House, many startups choose to customise them.
Why it's important:
- Defines the relationship between the company, its directors, and its shareholders.
- Establishes procedures for key company decisions.
- Can be tailored to suit specific founder agreements or investor requirements.
StartupDocs tip: Even if you start with model articles, be prepared to amend them as your company grows or takes on investment. Future investors will often have specific clauses they want included, for example, pre-emption rights or drag-along clauses.
2. Shareholders' agreement
While the Articles of Association are public and registered with Companies House, a Shareholders' Agreement is a private contract between the shareholders of a company and sometimes the company itself. It typically supplements the Articles and covers more detailed, often sensitive, arrangements that founders want to keep confidential.
Why it's important:
- Outlines founder responsibilities, equity vesting schedules, and exit strategies.
- Provides mechanisms for resolving shareholder disputes.
- Can include restrictive covenants (e.g., non-compete, non-solicitation) for founders.
- Establishes rights concerning new share issues, share transfers, and company valuation.
StartupDocs tip: This document is crucial for co-founder relationships. Spend time drafting this even if you feel you know and trust your co-founders implicitly. It's much easier to agree on terms when everyone is optimistic than when disputes arise.
3. Employment contracts / consultancy agreements
As soon as you bring on your first employee or engage a freelancer, you need the right paperwork. The distinction between an employee and a consultant is crucial and has significant implications for tax, national insurance, and employment rights. An employment contract is for those working under your direct supervision, while a consultancy agreement is for independent contractors providing services.
Why it's important:
- Employment contracts: Define terms of employment, salary, holiday, notice periods, intellectual property assignment, and confidentiality.
- Consultancy agreements: Outline services to be provided, fees, payment terms, intellectual property ownership, and confidentiality.
- Ensures legal compliance and protects both parties.
StartupDocs tip: Incorrectly classifying a worker can lead to severe penalties from HMRC. If in doubt, seek professional advice. StartupDocs provides templates tailored for both categories to ensure you're compliant from the start.
4. Privacy policy and cookie policy
If your startup collects, processes, or stores any personal data from individuals (which nearly all do), you need a comprehensive Privacy Policy. If your website uses cookies, a Cookie Policy is generally required too. These documents explain to users how their data is handled, in compliance with GDPR and the UK Data Protection Act 2018.
Why it's important:
- Legal requirement under UK data protection laws.
- Builds trust with your users and customers.
- Outlines data collection, use, storage, and deletion practices.
- Explains user rights regarding their data.
StartupDocs tip: Don't just copy and paste. Your policies need to accurately reflect your specific data handling practices. StartupDocs' compliance checks can help you identify gaps or areas for improvement in your privacy documentation.
5. Website terms and conditions / terms of service
For any startup with a website, app, or online platform, Terms and Conditions (or Terms of Service) are non-negotiable. This document sets out the rules for using your service or website, defining the contractual relationship between your company and its users or customers.
Why it's important:
- Limits your liability and protects your intellectual property.
- Defines warranties, disclaimers, and acceptable use policies.
- Establishes dispute resolution mechanisms.
- Clarifies payment terms, cancellation policies, and subscription details for services.
StartupDocs tip: Make sure your users can easily find and understand these terms. Hiding them away or using overly complex language can render them unenforceable. Regularly review and update them, especially as your product or service evolves.
Getting these foundational documents right will save you resources and stress in the long run. While StartupDocs can help you draft and manage many of these, always consult a solicitor for bespoke legal advice tailored to your specific circumstances and complex legal queries.