What Is A Private Company In The UK?

If you’re weighing up the best structure for your venture, you’ll quickly come across the term “private company”. It’s one of the most popular ways to run a small business in the UK because it offers flexibility and protection - but what does it actually mean in practice?

In this guide, we’ll explain what a private company is, how it compares to other structures, the steps to set one up, and the legal responsibilities you’ll need to meet once you’re up and running. We’ll also flag the key documents that help keep you protected from day one.

By the end, you’ll know whether a private company is the right fit for your business - and the practical steps to get started confidently.

What Is A Private Company In The UK?

A private company is a business that’s incorporated at Companies House and not listed on a stock exchange. The most common form is a private company limited by shares (often written as “Ltd”).

Here’s the crucial bit: a private company is a separate legal entity. That means the company can own property, enter contracts and take on debts in its own name. In most cases, shareholders’ personal assets are protected if things go wrong - that’s the advantage of “limited liability”.

Private companies are governed mainly by the Companies Act 2006. They must follow specific rules around directors, record-keeping and filings, but they also enjoy a lot of flexibility in how they’re run. You can tailor your company’s constitution and internal rules to suit how you and your co-founders want to operate.

If you’re curious about the kinds of businesses that typically adopt this structure, it’s worth exploring some examples of private limited companies and how they’re set up in practice.

Private Limited By Shares Vs Limited By Guarantee

When we say “private company”, we’re usually talking about one of two forms:

Private Company Limited By Shares (LTD)

• Ownership: Shareholders own the company through shares.
• Liability: Shareholders’ liability is limited to the amount unpaid on their shares.
• Profit: Profits can be distributed as dividends.
• Best for: Most commercial businesses looking to trade and grow.

Private Company Limited By Guarantee

• Ownership: Members, not shareholders, “guarantee” to contribute a nominal amount (e.g. £1) if the company is wound up.
• Liability: Members’ liability is limited to the guarantee amount.
• Profit: Typically used for not-for-profits and membership organisations; profits are usually reinvested.
• Best for: Clubs, charities (often with charitable status), associations and community ventures.

Deciding between shares and guarantee depends on your purpose. If you’re trading for profit, a shares model is usually the way to go. If your goal is non-profit activity with a formal structure, a guarantee model may be a better fit. If you’re leaning towards a guarantee structure, it helps to understand how companies limited by guarantee work in detail.

How Do You Set Up A Private Company?

Incorporating a UK private company is straightforward when you know the steps. Broadly, you’ll prepare your core company details, file an application with Companies House, and then put the right internal documents and registrations in place.

1) Choose Your Company Name And Core Details

Pick a unique name (Companies House will check availability). Decide on your registered office address (publicly visible), service address for directors, and a Standard Industrial Classification (SIC) code that matches your activities.

At this stage, think about ownership and control - who will be shareholders, directors and anyone with significant influence. You’ll need to disclose People with Significant Control (PSC), which usually means those holding more than 25% of shares or voting rights, or otherwise exercising significant control.

2) Prepare Your Articles Of Association

Your Articles are the company’s rulebook. You can use the “Model Articles” from Companies House or tailor your own to match your specific needs. Customised Articles can clarify decision-making, share rights, director powers and restrictions, and how shares can be transferred. If you’re planning to raise investment or run a multi-founder business, bespoke Articles are well worth it. You can work with a lawyer on fit-for-purpose Articles of Association as part of your setup.

3) Decide Share Structure And Allocate Shares

Set your initial share capital and classes (e.g. ordinary shares, or separate classes with different rights if needed). Allocate shares to founders and early contributors. If you’re incentivising team members, consider whether a Share Vesting Agreement makes sense to align long-term commitment.

4) File Your Incorporation

You can file online with Companies House or use a professional to handle it end-to-end. Many founders choose a streamlined service to ensure the paperwork is correct and to avoid delays. If you’d like a hand, you can register a company with legal support and have your core documents set up properly from day one.

5) Receive Your Company Number And Keep It Handy

Once approved, Companies House issues a unique company number. You’ll use it on invoices, contracts and filings. If you’re not sure how to locate or use it correctly, here’s a simple guide to company registration numbers.

6) Set Up Your Bank, Tax And Key Registrations

• Open a business bank account in the company’s name.
• Register with HMRC for Corporation Tax (usually within 3 months of starting to trade).
• Consider VAT registration depending on turnover and business model.
• If you’ll hire staff, set up PAYE and workplace pensions.

7) Put Your Internal Records And Contracts In Place

From the outset, maintain statutory registers and issue share certificates to shareholders. It’s good practice to follow the rules around share certificates and member registers to avoid disputes later. We’ll cover other essential documents below - these set the ground rules, reduce risks and make it easier to grow.

Ongoing Legal Obligations For Private Companies

Once your LTD is live, there are continuing responsibilities. Meeting these is manageable when you build a simple routine.

Companies House Filings

• Annual Accounts: Prepare and file annual accounts. Small and micro entities can often file reduced information (“filleted” accounts). Many small LTDs qualify for audit exemptions under the Companies Act 2006.
• Confirmation Statement: File at least once every 12 months to confirm key company information.
• Event-Driven Filings: Notify changes to directors, PSCs, registered office, share allotments and other updates promptly.

If you meet size thresholds, you may be able to file total exemption accounts - speak with your accountant to confirm eligibility and make sure your disclosures are correct.

Taxes And HMRC

• Corporation Tax: Applicable to your company’s profits. Keep accurate books to make returns straightforward.
• VAT: Mandatory registration if you exceed the threshold; optional below it depending on your customers and cashflow.
• PAYE: If you have employees or pay directors through payroll, run PAYE and make real-time information (RTI) submissions.

You’ll also make commercial decisions about how to pay yourself and other directors. For context on common approaches, here’s a primer on director salary options and tax efficiency.

Company Records And Decision-Making

• Statutory Registers: Keep them up to date (members, directors, PSCs, charges etc.).
• Board Minutes And Resolutions: Record key decisions. Some matters require shareholder approval; check whether an ordinary vs special resolution is needed and document accordingly.
• Contracts: Maintain organised records of customer, supplier and employment contracts.

Employment And Supplier Compliance

If you hire staff, you’ll need written Employment Contracts and a basic Staff Handbook or core policies (like disciplinary, grievance, equal opportunities). For key executives or founder-directors, a tailored Directors Service Agreement helps align duties, remuneration and restrictions.

With suppliers and customers, make sure your contract terms are clear about scope, pricing, liability caps, IP and termination. A short, well-drafted set of Business Terms or a Master Services Agreement can save a lot of headaches.

Data Protection And Consumer Law

If you handle personal data, you must comply with UK GDPR and the Data Protection Act 2018 - for most companies this means having a clear Privacy Policy, appropriate data processing clauses with processors, and sound security practices. If you sell to consumers, you’ll also need to follow the Consumer Rights Act 2015 and Consumer Contracts Regulations (e.g. transparent pricing, delivery timelines, fair terms and cancellation rights for distance sales).

It’s a lot, but don’t stress - building these requirements into your processes early makes compliance routine rather than a scramble later.

Private Company Vs Public Company: Key Differences

Private and public companies share the same core concept (both are limited liability companies under the Companies Act 2006), but they operate differently.

Private Company (LTD)

• Ownership: Shares held privately; transfer can be restricted by Articles or a Shareholders Agreement.
• Capital Raising: Can raise funds from private investors but cannot offer shares to the general public.
• Regulation: Less onerous reporting and governance compared to public companies.
• Flexibility: Greater freedom to set bespoke rules in Articles and shareholder arrangements.
• Best for: SMEs, startups and closely-held businesses.

Public Limited Company (PLC)

• Ownership: Shares may be offered to the public (subject to securities rules) and potentially listed on an exchange.
• Capital Raising: Access to public capital but at the cost of higher compliance.
• Regulation: More stringent reporting, governance and audit requirements.
• Costs: Significantly higher ongoing costs and disclosure obligations.
• Best for: Larger companies seeking public investment.

Most small businesses don’t need PLC status. If you’re exploring investment, you can raise funds privately and manage share issues with robust internal governance.

Essential Documents To Protect Your Private Company

Legal documents are more than “paperwork” - they’re the rulebook that protects your team, your brand and your cashflow. Here are the core ones we recommend as a baseline for private companies.

Articles Of Association (Company Constitution)

Your Articles set decision-making rules, director powers, share rights, pre-emption on new share issues and more. Clear, tailored provisions reduce deadlocks and protect minority or majority interests depending on your goals. If you anticipate growth, having fit-for-purpose Articles of Association is essential.

Shareholders Agreement

This sits alongside your Articles and covers what happens if someone wants to leave, how dividends are declared, drag/tag rights on sales, founder leaver provisions and dispute resolution. It’s the single most effective way to avoid painful disputes as your company grows. If you have more than one owner, prioritise a strong Shareholders Agreement.

Directors Service Agreement

Where directors are also working in the business, this contract sets out duties, pay, IP ownership, confidentiality and restrictive covenants to protect the company when key people leave. Using a tailored Directors Service Agreement is a smart move for founder-teams and senior hires.

Issue Of Shares, Registers And Certificates

Whenever you bring in a new investor or reallocate shares, document it properly. Keep your statutory registers up to date and issue share certificates promptly. The admin matters - neat records help with future due diligence and minimise disputes. If you’re not sure what to maintain, this guide to share certificates and member registers is a useful checklist.

Data And Customer Terms

• Privacy Policy and Data Processing terms to comply with UK GDPR.
• Website or App Terms of Use, and Terms of Sale/Service for your products or services.
• Clear limitation of liability and IP clauses to reduce risk.

Board And Shareholder Resolutions

Documenting decisions correctly matters. For example, certain actions (like amending Articles or approving a buyback) need shareholder approval at specific thresholds. If you’re ever unsure, check whether an ordinary or special resolution is required and record it accurately.

Planning For Changes

Companies evolve. You might pause trading and go dormant for a period, in which case you’ll still have filing obligations - this quick guide to making a company dormant sets out the steps. If you intend to sell shares, consider a well-structured Share Sale Agreement to protect both sides and smooth the transition.

Common Advantages (And A Few Trade-Offs) Of Private Companies

Why do so many small businesses choose a private company?

Key Advantages

• Limited Liability: Your personal assets are generally protected if the company faces debts or legal claims.
• Separate Legal Entity: The company owns contracts and assets in its own name, which simplifies continuity and investment.
• Professional Image: Many clients and suppliers prefer contracting with a company.
• Flexible Ownership: You can issue and transfer shares, bring in investors, and design share classes to suit growth plans.
• Tax Planning: Scope for legitimate tax planning through salaries, dividends and allowances (with professional advice).

Potential Trade-Offs

• Administrative Duties: Filings, accounts and registers require attention (a good accountant and simple internal processes make this easy).
• Public Disclosure: Certain information (e.g. directors, PSCs, registered office, some accounts) is public at Companies House.
• Costs: Setup and annual compliance cost more than running as a sole trader - but often deliver value through protection and growth options.

For most ambitious small businesses, the benefits outweigh the drawbacks - especially if you build neat processes early.

Is A Private Company Right For Your Business?

Ask yourself a few practical questions:

• Do you want limited liability protection for founders?
• Will you raise investment or bring in co-founders now or later?
• Do your customers expect to contract with a company?
• Are you comfortable with basic filings and record-keeping each year?

If you’re nodding along, a private company is likely a strong fit. And remember, your structure isn’t set in stone - but changing later can be more complex and costly. Getting your legal foundations right early gives you a smoother runway for growth.

Key Takeaways

• A private company is a separate legal entity, usually a limited by shares “Ltd”, offering limited liability and flexible ownership.
• Choose between limited by shares (best for trading businesses) and limited by guarantee (common for not-for-profits) based on your goals.
• Set up the right way: prepare tailored Articles, decide your share structure, file your incorporation, and organise bank, tax and PAYE registrations.
• Stay compliant: file annual accounts and your confirmation statement, keep statutory registers, and record decisions with the correct board or shareholder resolution.
• Protect your business with core documents: Articles of Association, a Shareholders Agreement, Directors Service Agreement, clear customer terms and data protection documents.
• Keep practical admin in check: issue share certificates, maintain member registers, and use your company number correctly in contracts and invoices.
• Build good habits from day one - tidy records and clear contracts reduce risk and make future fundraising or exit far easier.

If you’d like help setting up a private company, drafting your documents or staying compliant, you can reach us on 08081347754 or team@sprintlaw.co.uk for a free, no-obligations chat.