If you're thinking about starting a business in the UK, one of the first decisions you'll face is choosing the right legal structure. For most entrepreneurs, that means understanding how a company with limited liability works, what it costs, and what responsibilities come with it. This guide walks you through everything from incorporation to ongoing compliance, so you can make informed decisions and avoid common pitfalls.
Key Takeaways
A UK limited company is a separate legal entity from its owners, offering limited liability that protects personal assets from company debts in most situations.
Most small UK businesses use the private limited company (Ltd) structure. The public limited company (PLC) is designed for larger businesses that want to offer shares to the general public.
Setting up a limited company online via Companies House typically takes around 24 hours in 2026, with direct fees starting at £100. You'll need a unique company name and a registered office address.
Directors must keep proper records, file annual accounts and a Confirmation Statement with Companies House, and pay corporation tax on the company's profits.
Switching from sole trader to limited company is often worth considering once profits are stable, personal financial risk is increasing, or you need to attract investors.
What is a Limited Company?
A limited company is a separate legal entity registered with Companies House under the Companies Act 2006. It is legally separate from its owners (shareholders) and managers (directors), meaning the company legally exists in its own right with its own finances, obligations, and legal standing.
Limited liability is the core benefit. Shareholders are liable only for their investment amount - specifically, any unpaid value on their shares. If the company fails, personal assets like a home or car are usually protected from business debts. In a company limited by guarantee, members pledge a small fixed sum (often £1) payable only if the company is wound up.
A limited company can:
Own property and other assets
Enter contracts in its own name
Employ staff
Borrow money and apply for business loans
Sue or be sued
Directors manage the daily operations of a limited company on behalf of shareholders. The term "company limited" in the UK refers to entities registered with Companies House, using suffixes like "Limited" or "Ltd" for private companies and "plc" for public limited companies.
Every limited company is a business, but not every business is a limited company. Sole traders and partnerships operate without separate legal personality, meaning the owners are personally liable for all business debts.
Types of Limited Company in the UK
The Companies Act 2006 recognises several limited company types. Choosing the right one affects ownership, fundraising, and how much regulation you'll deal with. Limited by shares is the most common type of limited company for commercial ventures, but other structures serve specific purposes. Limited liability partnerships combine features of partnerships and limited companies, though they fall outside the scope of this guide.
The three main types you'll encounter are the private limited company by shares, the private company limited by guarantee, and the public limited company.
Private Company Limited by Shares (Ltd)
This is the default structure for most UK startups and small businesses in 2026. Think tech consultancies, online retailers, or freelance contractors looking for more protection than a sole trader setup.
Ownership is divided into shares. Private limited companies have limited liability for shareholders, who may receive dividends from company profits. Shares cannot be offered to the general public, and transfers are governed by the company's articles of association and any shareholder agreements between existing shareholders.
A private limited company needs at least one director and at least one issued share. A company secretary is optional. The company must file annual accounts and a Confirmation Statement with Companies House, and its basic details appear on the public register for anyone to search.
Private Company Limited by Guarantee
A private company limited by guarantee is a limited company type with no share capital. Limited by guarantee companies do not have share capital. Instead, members agree to contribute a fixed nominal amount - for example, £1 - if the company is wound up with outstanding debts.
This structure is common for non-profit bodies, clubs, trade associations, and many charities. Profits are reinvested into the organisation's mission rather than distributed as dividends. A local sports club or professional association is a typical example, where members want limited liability and a formal governance structure without the complexity of share ownership.
Guarantor members cannot sell or transfer shares (since none exist), and they don't receive dividends. Organisations seeking charitable status should decide whether a company limited by guarantee or a Charitable Incorporated Organisation (CIO) best fits their governance and regulatory needs, ideally with professional advice.
Public Limited Company (PLC)
A public limited company is a company limited by shares that can offer shares to the general public and may be listed on regulated markets like the London Stock Exchange. Public limited companies can trade shares on stock exchanges, which gives them access to significant capital.
UK PLCs must meet specific legal thresholds: a minimum allotted share capital of £50,000, with at least 25% paid up. They require at least two directors, a qualified company secretary, and must include "plc" in their company name.
PLCs face more stringent accounts and audit requirements, stricter governance expectations, and higher scrutiny from regulators and investors. Most small and medium UK businesses don't need this structure. A PLC is typically relevant only when a company is considering large-scale fundraising or public share offerings.
Why Set Up a Limited Company Instead of Trading as a Sole Trader?
Operating as a sole trader means there's no separate legal entity - you and your business are the same in the eyes of the law. Forming a limited company creates a legally separate structure registered with Companies House.
Core reasons to incorporate include managing risk via limited liability, potential tax efficiency at certain profit levels, and improved credibility with clients and suppliers. But personal circumstances matter: your income level, other employment, plans to reinvest profits, and risk profile all influence whether a limited company structure is the right move. Forming a limited company adds administrative responsibilities, including corporation tax returns, annual accounts, and public disclosure of some company information.
Rates and allowances change regularly. Seek professional tax and legal advice before deciding.
Limited Liability and Personal Risk
In practical terms, limited liability protects personal assets from business debts. Your personal finances stay separate from the company's obligations. If the company fails, creditors generally cannot come after your home, savings, or personal belongings.
However, directors may still be personally liable in cases of fraud, wrongful trading, or where they've given personal guarantees to lenders. For example, a private limited company taking a £40,000 bank loan in 2026 where the bank requires a personal guarantee means the director's personal financial risk extends beyond the company's assets.
When a company becomes insolvent, shareholders contribute only unpaid share amounts - nothing more, provided there's no misconduct. Proper governance and accurate record-keeping are essential for maintaining this protection and defending against allegations of "lifting the corporate veil."
Brand Identity and Professional Image
Using a limited company name ending in "Limited" or "Ltd" can make a business appear more established to UK customers, suppliers, and lenders. A separate company name also helps build a distinct brand that isn't tied to the owner's personal identity, which is useful if the business is ever sold.
Certain larger organisations, including public bodies and corporates, prefer or require suppliers to operate as limited companies for compliance reasons. Company names are published on the company register, so choosing a professional, future-proof name matters for credibility and searchability.
Securing the matching domain name and social media handles should be part of building a cohesive brand identity for any new limited company.
Access to Capital and Growth
A private limited company can issue new shares to bring in co-founders, angel investors, or employee shareholders without changing the underlying legal entity. Limited liability companies can issue shares to raise capital, making this structure attractive to early-stage investors. Limited companies can apply for business loans and investments through banks and specialist lenders who have well-established products calibrated to this structure.
Retaining profits inside a limited company for reinvestment - buying equipment, hiring staff - may be more tax-efficient than withdrawing everything as personal income. Rapid growth, especially if planning to hire multiple employees or sign large contracts, is a strong signal that a limited company structure is appropriate.
Employee Incentives and Ownership
Private limited companies can implement share option schemes, such as Enterprise Management Incentives (subject to HMRC rules), to reward and retain key staff. Structured benefits like workplace pensions, health insurance, and bonus schemes are also easier to administer via a company.
Creating future ownership opportunities through growth shares or long-term incentive plans is simpler in a company limited by shares than as a sole trader. However, employee equity schemes must be properly documented with legal and tax advice to avoid unexpected tax bills.
Clear ownership and incentive structures can make a company more attractive to future buyers or investors who want to see the management team's commitment.
When Should You Set Up a Limited Company?
Incorporation timing should reflect revenue stability, risk level, and growth plans - not just a specific date or milestone.
Consider incorporating once turnover and profit are consistently above a modest threshold. Many accountants suggest the £30,000–£40,000 per year range as a practical starting point where tax benefits begin to outweigh compliance costs.
Other triggers include:
Signing long-term contracts or taking on larger financial commitments
Hiring employees or engaging subcontractors regularly
Needing credibility for a specific client or sector
Some founders choose to incorporate before they start trading, so that branding, contracts, and a business bank account are all set up in the company's name from day one. If you're switching from sole trader to limited company mid-year, plan the transition date with an accountant to avoid messy tax overlaps.
How to Set Up a Limited Company in the UK (Step-by-Step)
Most UK limited companies are incorporated online in 2026 via Companies House or an authorised formation agent. You must register your company before trading. The process includes choosing the limited company type, picking a compliant company name, appointing at least one director, allocating shares or guarantees, and providing a registered office address.
You need to prepare documents for Companies House registration, including articles of association, a statement of capital, and details of persons with significant control. From 2026, identity verification via GOV.UK One Login (using your government gateway user ID and personal details) is becoming mandatory for all directors. You may need your national insurance number and passport number during the verification process.
Once incorporated, the company receives a unique company number, a certificate of incorporation, and appears on the public register.
Choose the Right Limited Company Type
Most solo freelancers, consultants, and small product businesses start with a private limited company limited by shares. Charities and community groups may opt for a company limited by guarantee or a specialist structure like a CIC.
Consider your long-term exit plans. Will you sell shares? Pass the business to family? Potentially list on a market? These choices influence the best limited company type. If in doubt, check official UK government guidance or speak to a solicitor.
Choose a Compliant Company Name
UK company names must be unique on the Companies House register and must not be "too like" an existing name. Use the official name availability checker, and search trademarks at the UK Intellectual Property Office to avoid conflicts.
Private limited company names must end with "Limited" or "Ltd." Certain words like "Royal" or "Bank" need prior permission. Choose a name that's easy to pronounce, spell, and remember - one that works on digital platforms too.
Avoid names that are too narrow or location-specific if you might expand later.
Appoint Directors and, if Needed, a Company Secretary
Every limited company must appoint at least one director. The legal minimum is at least one director who is a natural person aged 16 or over. A limited company must have at least one director to be validly incorporated.
Directors' duties under the Companies Act 2006 include promoting the success of the company, exercising reasonable care, and avoiding conflicts of interest. A company secretary is optional for private companies but mandatory for PLCs.
Directors' details - full name, month and year of birth - are recorded at Companies House and visible on the public register. You can protect your home address by using a service address. From 2026, all directors must verify their identity through approved methods, which may involve a security service or government gateway user process.
Decide on Shareholders or Guarantors and Ownership Structure
At incorporation, a company limited by shares must issue at least one share and record who owns it. A sole shareholder can also be the sole director. For companies limited by guarantee, members and their guarantee amounts must be recorded.
Co-founders should document ownership splits formally. A shareholder agreement covering big decisions, exits, and disputes is strongly recommended. Persons with significant control (PSCs) - anyone with more than 25% of shares or voting rights - must be reported to Companies House.
Using different share classes (ordinary, non-voting, preference) should only be done with professional advice, since rights attached to shares have long-term implications for existing shareholders and future investors.
Registered Office Address and Other Key Company Details
A UK limited company must have a registered office address. This is the official address for HMRC and Companies House correspondence, and it must be in the same UK jurisdiction where the company is registered (England and Wales, Scotland, or Northern Ireland).
The registered office appears on the public register, so many directors use a professional registered office service instead of their home address for privacy. Directors can also use a separate service address to keep residential addresses off the public record.
Other required details at incorporation include a SIC code describing business activity, a statement of capital, articles of association, and PSC information. Review the model articles provided by Companies House and only consider customised articles where specific needs justify the extra legal cost.
Costs and Timescales for Setting Up a Limited Company
In 2026, direct incorporation via Companies House costs £100 online (standard). Same-day processing is available for £156. Online applications can be processed in as little as one day on working days. Postal applications are slower - about 8–10 days - and cost around £124.
Using a formation agent (including registered office address and support) typically adds more, with packages ranging from £50 to several hundred pounds on top of the government fee.
Typical additional costs to budget for:
Cost Item | Approximate Range |
|---|---|
Accountant setup and first-year fees | £300–£1,500 |
Domain registration | £5–£20/year |
Business insurance | £100–£500/year |
Accounting software | £10–£40/month |
Confirmation Statement (digital) | £50/year |
Budget not just for incorporation but for ongoing compliance costs, including annual accounts preparation and Companies House filing fees.
Running a Private Limited Company: Ongoing Responsibilities
After incorporation, directors are responsible for ensuring the company meets filing deadlines with HMRC and Companies House, even if tasks are delegated to an accountant. Directors are responsible for the company's financial records. A separate business account, proper record-keeping, and timely tax registrations are essential to preserving limited liability and avoiding penalties.
UK rules require transparency: certain information about directors, shareholders, PSCs, and accounts is publicly accessible through the Companies House register. Schedule key compliance dates in a shared calendar from the outset.
Bookkeeping, Annual Accounts, and Companies House Filings
Every limited company must maintain accurate accounting records covering income, expenses, assets, liabilities, and supporting documents. Directors must keep accurate company records and accounts - this is a legal requirement, not optional.
A limited company must file annual accounts with Companies House by the statutory deadline and submit them to HMRC as part of tax filings. Many small companies qualify for simplified or micro-entity reporting formats, which reduce disclosure but still require timely, accurate filings.
The Confirmation Statement must be filed at least once a year to confirm details of shareholders, PSCs, and registered office address. Working with a qualified accountant and using cloud accounting software makes this process far more manageable.
Taxes: Corporation Tax, PAYE, VAT, and Dividends
Limited companies must pay taxes on their profits. A limited company must register for Corporation Tax with HMRC within three months of starting to trade. Directors and shareholders are taxed separately on money they receive from the company - salaries through PAYE, dividends from post-tax profits.
Companies may need to register for VAT once turnover exceeds the prevailing registration threshold. When employing staff, running payroll correctly and meeting workplace pension auto-enrolment duties become mandatory.
Tax rules, rates, and allowances change frequently. Up-to-date professional advice from an accountant is essential.
Using a Business Bank Account and Managing Company Money
While not legally mandatory in every case, a dedicated business bank account is strongly recommended to keep personal and business finances separate. Most UK banks and fintech providers in 2026 offer online business bank accounts tailored for limited companies, often with integrated accounting features.
Directors should not treat the company business account as a personal wallet. Withdrawals must be properly recorded as salary, dividends, expense reimbursements, or director's loans. Overdrawn director's loan accounts can create tax charges and personal liability if not repaid within required time limits.
As the company grows, implement a simple internal approval process for large payments to demonstrate sound governance and protect both personal finances and business finances.
Switching from Sole Trader to Limited Company
Many UK sole traders eventually incorporate for several advantages: better risk management, growing profits, and customer expectations for dealing with a limited company. The move involves registering a new company, opening a company business bank account, and notifying HMRC of changes in trading status.
Asset and contract transfers need careful handling. Business assets, ongoing client contracts, and possibly employees may need to be formally moved from the individual to the new company. Timing matters - aligning the switch with the start of a new tax year simplifies record-keeping and tax calculations.
Don't forget continuity planning. Update invoices, websites, stationery, and marketing materials to reflect the new company name and registered office address. Inform clients, suppliers, and any relevant licensing bodies.
FAQ
Can I set up a limited company if I live outside the UK?
Non-UK residents can generally form and own UK limited companies. You'll need to supply required identity verification, use a UK registered office address, and comply with UK company and tax law. Be aware this may create tax obligations in other countries, so cross-border tax advice is important. Many non-UK founders use professional services for mail forwarding and company secretarial support.
How do I close a limited company if I no longer need it?
There are two main routes. For solvent, inactive companies, you can apply for voluntary strike off by filing form DS01 with Companies House. You'll need to settle debts, distribute any remaining money, and inform creditors. For companies with debts or complex affairs, formal liquidation is the appropriate process. If the company cannot pay its debts, seek insolvency or legal advice promptly to avoid wrongful trading and becoming personally liable.
Can I change my company name after incorporation?
Yes. Pass the appropriate shareholder resolution and file form NM01 with Companies House. The new name must still comply with naming rules, and the change only takes effect once Companies House issues a new certificate of incorporation on change of name. Remember to update your bank, HMRC, customers, suppliers, and all branding assets once the new name is official.
Do I need a shareholders’ agreement for a small limited company?
Shareholders' agreements are not a legal requirement, but they're strongly recommended where there is more than one shareholder. Even in small family businesses, these documents can cover share transfers, decision-making, dispute resolution, and what happens if a shareholder dies or wants to sell. Putting one in place early can prevent costly conflict later and make the company more attractive to lenders and investors.
What is the difference between a director and a shareholder?
A shareholder owns part of the company through shares and may receive dividends from profits. A director is responsible for managing the company's day-to-day affairs and ensuring legal compliance. In many small UK limited companies, one person is both sole director and sole shareholder, but the roles remain legally distinct. Big decisions like appointing directors, changing articles of association, or issuing new shares typically require shareholder approval, reflecting their ultimate ownership control over the company.
