After Company Registration: A UK Founder’s Legal Protection Checklist

Registering a UK limited company and protecting it are two separate jobs. Registration creates the company. Protection is the work that comes after: trade marks, contracts, privacy compliance, and proper agreements with the people you work with.

Three recent changes are especially important for UK founders. Companies House fees increased from 1 February 2026. Identity verification requirements for directors and People with Significant Control (PSCs) began from 18 November 2025, with a transition period for existing companies. And companies no longer need to keep separate internal registers of directors, company secretaries or PSCs, although they must still register that information with Companies House and keep it up to date.

This guide, prepared by FOUNDRS, focuses on the handover between the two: the registration decisions that shape your legal position and the protections to put in place before you begin trading. It is deliberately narrower than a general Companies House registration guide.

Why registration and protection are separate jobs

Many founders treat starting a business as a single event: incorporate, done. But incorporation only gives you the company. It does not automatically protect your brand, your contracts, your data, your IP, or your relationships with co-founders, contractors, employees and clients.

A registered company name does not stop someone else from using a similar name commercially. An incorporated company can still run into problems if it has no written contracts, no privacy policy, no clear IP ownership, or no agreement with the people helping build the business.

Founders who deal with both sides early are usually better placed to avoid disputes later, whether that is a brand conflict, a client refusing to pay, or a team member leaving with unclear IP ownership.

Part one: registration decisions that affect your legal position

Step 1: Choose your structure - sole trader or limited company?

Before you register anything, you’ll need to decide on your business structure. For most small businesses, the two most common options are operating as a sole trader or setting up a private limited company.

The right structure will depend on how you plan to run and grow the business, as the two options come with different legal, liability and administrative implications.

Sole trader

Legal status: You and the business are the same legal entity.
Liability: Personal - your own assets may be on the line.
Tax: You pay Income Tax on your profits.
Admin burden: Relatively minimal, with Self Assessment being the main requirement.
Best suited to: Freelancers and smaller-scale businesses.

Private limited company (Ltd)

Legal status: The company is a separate legal entity in its own right.
Liability: Limited - shareholders are generally only liable up to the value of their shares.
Tax: The company pays Corporation Tax, with separate decisions around salary and dividends.
Admin burden: Higher - including annual accounts, a confirmation statement and a Corporation Tax return.
Best suited to: Founders planning to scale, bring on co-founders or raise investment.

For founders planning to build something bigger than themselves, bring on co-founders, issue shares or raise investment, a private limited company will often be the more practical structure. It creates a legal entity separate from you personally and provides a clearer framework for ownership and growth.

Step 2: Pick your company name

Your company name is your legal identity. It appears on contracts, invoices, official company documents and the public Companies House register.

A valid UK company name must be unique, and you can check availability using the Companies House name checker. It also cannot include restricted words such as “Royal”, “Bank”, “Chartered” or “Authority” without prior approval from the relevant body.

 Registering a company name does not automatically give you exclusive trade mark rights or comprehensive protection for your brand. While Companies House registration helps prevent identical (and some very similar) company names from being registered, it does not provide the same protection as a registered trade mark. Another business may still be able to use a similar brand in some circumstances or own earlier trade mark rights that affect your ability to use the name.

Step 3: Set your registered office address

Every UK limited company needs a registered office address. This is where legal and official correspondence is sent, and it does not need to be where you work.

Your options include your home address, an accountant’s office, or a dedicated registered office service. Since March 2024, Companies House requires registered offices to be “appropriate”, meaning correspondence must be able to reach someone acting for the company. PO boxes alone do not qualify.

Every registered office address is published on the public register, so if you would prefer to keep your home address private, a registered office service is usually the cleaner option.

Companies must also provide a registered email address to Companies House. This is used for official communication and is not published on the public register.

Step 4: Appoint your directors and identify your PSCs

A company needs at least one director. Directors are legally responsible for running the company, filing accounts and keeping the company compliant. They must be at least 16 years old and not disqualified.

You will also need to declare any People with Significant Control (PSCs). PSCs are usually people who own more than 25% of the company’s shares, control more than 25% of voting rights, have the right to appoint or remove a majority of the board, or otherwise exercise significant influence over the company. For many solo founders, the director and PSC are the same person.

Since November 2025, companies no longer need to maintain separate internal registers of directors, company secretaries or PSCs. However, they must still register that information with Companies House and keep it up to date. Companies must also still maintain their own register of members, which records the shareholders.

Step 5: Choose your SIC code

A Standard Industrial Classification (SIC) code tells Companies House and HMRC what your business does. Most companies use one SIC code, but you can register up to four if your business spans different categories.

Choose the closest match to your main business activity using the official SIC code list on the Companies House website. Taking care here can help avoid friction with banks, insurers or HMRC later.

Step 6: Decide your share structure

When you register, you issue shares to the company’s owners. If you are starting alone, a common simple structure is 100 ordinary shares at £1 each, all held by you.

If you are starting with others, agree and document who owns what before you register. Your share structure affects control, dividends, future investment and what happens if someone leaves.

Simple starter approaches include:

• Solo founder: 100 ordinary shares at £1, all held by you
• Equal co-founders: 100 ordinary shares at £1, split equally
• Mixed equity: agreed percentages, documented alongside a shareholders’ agreement

If the equity split is at all complex, it is worth getting the shareholders’ agreement drafted properly before you incorporate.

Step 7: Verify your identity

Since 18 November 2025, identity verification has been a legal requirement for directors and PSCs of UK companies. New directors need to verify their identity to incorporate a company or be appointed to an existing company, while existing directors and PSCs are being brought into the regime through Companies House's phased transition process. This requirement was introduced under the Economic Crime and Corporate Transparency Act.

Verification is usually completed through GOV.UK One Login or through an Authorised Corporate Service Provider (ACSP), using photo ID such as a passport or driving licence and, where required, proof of address.

Plan this into your timeline, especially if you are incorporating a new company or appointing new directors or PSCs.

Step 8: Prepare your company documents

Two documents are required at registration. The Memorandum of Association confirms the founders’ intention to form the company. If you register online, Companies House usually generates this automatically.

The Articles of Association set out the internal rules for how the company operates. Most straightforward companies adopt the standard Model Articles. Bespoke articles may be useful if you are taking on investment, creating different share classes, or putting unusual arrangements in place.

Step 9: Submit to Companies House

Once everything is ready, your application goes to Companies House. From 1 February 2026, online incorporation costs £100. Paper filings cost £124, and same-day digital registrations are available for £156. Online applications are often approved within a few hours, though timing can vary.

Once approved, you receive a Certificate of Incorporation, which is the legal proof that your company exists, along with a company number and a Unique Taxpayer Reference (UTR) for Corporation Tax.

Part two: the legal protections company registration does not give you

Registration gives you a company. What comes next determines whether it is properly protected.

Protect your intellectual property

Registering a company name is not the same as owning your brand. If your brand has value, you should consider registering a trade mark with the UK Intellectual Property Office (IPO).

A UK trade mark gives you exclusive rights to use your brand name and/or logo in the classes of goods or services you register for. Online applications now start from £205 for one class, with additional classes costing £60 each. Once registered, a trade mark lasts for ten years before renewal.

 Even without a registered trade mark, businesses may in some circumstances be able to rely on the common law action of passing off. However, this generally requires proving goodwill and can be more complex, expensive and uncertain than enforcing a registered trade mark.

IP protection can also cover:

• Logos and brand marks - register as trade marks
•  Written content, software code and photography - copyright generally arises automatically, but businesses should ensure ownership is properly documented, particularly where work is created by contractors, freelancers or other external contributors.
• Product designs - protected through registered design rights where appropriate
• Inventions - potentially protected through patents, usually with specialist advice

Get your contracts right

 Verbal agreements and email exchanges can, depending on the circumstances, be legally binding under English law.

Written contracts with clients, suppliers and collaborators define the scope of work, payment terms, liability caps, termination rights and what happens if there is a dispute. They are the foundation of professional relationships.

The contracts many UK businesses need early include:

• Client service agreement or terms of business - what you deliver, for how much, and under what terms
• Supplier agreements - what you are buying, liability, delivery terms and responsibilities
• Website terms and conditions - particularly if you sell online or take sign-ups
• NDAs - before sharing confidential information with investors, contractors or potential partners

Handle privacy and data properly

If your business collects personal data, UK GDPR may apply. Personal data can include names, email addresses, payment details, employee records and, in some cases, online identifiers such as IP addresses.

Depending on your processing activities, your business may also need to register with the Information Commissioner's Office (ICO) and pay the data protection fee, unless an exemption applies.

For many small businesses, the ICO data protection fee is likely to fall within the lower fee tiers, but current fees range from £52 to £3,763 depending on the organisation’s size and circumstances. Businesses should use the ICO’s self-assessment tool to check whether they need to pay and which tier applies. Getting this right from the start is much easier than fixing it after a complaint or data issue.

Protect the relationships with people you work with

The moment you work with other people, you should define the relationship in writing.

Employment contracts and contractor agreements determine who owns the IP created, what notice periods apply, what confidentiality obligations exist, and what happens when the arrangement ends.

The distinction between an employee and a contractor can also have tax implications under IR35 rules.  Where the IR35 rules apply, HMRC may seek additional tax and National Insurance contributions, so it's important to assess working arrangements carefully.

At minimum, consider written agreements for:

• Employees - a written statement of employment particulars is a legal requirement from day one
• Contractors and freelancers - scope, IP ownership, confidentiality and payment terms
• Co-founders - a founders’ agreement or shareholders’ agreement covering vesting, roles and decision-making

Your post-registration legal checklist

Founders do not always need every document or registration on day one. But before you launch publicly, it is worth checking whether you have:

1. The right company structure and share split
2. A brand clearance search and trade mark plan
3. Client terms, service agreements or website terms before work starts
4. A privacy policy and an ICO registration check if you handle personal data
5. Contractor, employment or founder agreements before people start contributing to the business

This order helps you cover the most common early risks: ownership, payment, brand protection, privacy compliance and team relationships.

Where to go from here: FOUNDRS x Sprintlaw

Registering a company is one part of getting started. Protecting the business is the next.

FOUNDRS and Sprintlaw are working together to help founders cover both sides. FOUNDRS supports the incorporation process, including Companies House registration, registered office support, digital mailbox services and compliance reminders.

Sprintlaw can help with the legal protections that often come next, including trade marks, contracts, website terms, privacy policies, employment documents, contractor agreements and shareholders’ agreements.

FOUNDRS users can also access 5% off their first Sprintlaw project.

Frequently asked questions

What are the 2026 Companies House incorporation fees?

Online registration with Companies House costs £100 from 1 February 2026. Paper filings cost £124. Same-day digital registration through a software filer costs £156. Formation services may charge their own fees on top, though some providers only pass through the Companies House fee.

When is Companies House identity verification required?

Yes. Since 18 November 2025, identity verification has been mandatory for new directors and People with Significant Control of UK companies. Existing directors and PSCs are being brought into the regime through Companies House's transition process. Verification can be completed through GOV.UK One Login or an Authorised Corporate Service Provider.

Does registering a company name protect my brand?

No. Company registration gives you a unique entry on the Companies House register, but it does not give you exclusive rights to use the name commercially. Brand protection usually requires a separate trade mark application through the UK Intellectual Property Office, with online applications now starting from £205 for one class.

Do I need to register with the ICO as a small business?

Many small businesses that process personal data need to register with the Information Commissioner’s Office and pay the annual data protection fee, unless an exemption applies. Current fees range from £52 to £3,763 depending on the organisation’s size and circumstances. Personal data can include customer emails, client names, employee records and some website analytics data.

What ongoing legal obligations does a UK limited company have?

A UK limited company usually needs to file an annual confirmation statement with Companies House, statutory annual accounts, and a Corporation Tax return with HMRC. VAT and PAYE reporting obligations may also apply depending on turnover and whether the company runs payroll.

When should I apply for a trade mark?

As early as you can reasonably do so, ideally before you invest heavily in a brand or launch publicly. A UK trade mark application can take several months, and protection generally runs from the filing date once the mark is registered.

If you would like a consultation on legal protection for your small business, you can reach us at 08081347754 or team@sprintlaw.co.uk for a free, no-obligations chat.