A limited company is an incorporated business entity in which the liability of its members is generally limited according to the legal structure and the nature of their ownership interests or guarantees. In the United Kingdom, common forms include a private company limited by shares, a public limited company and a private company limited by guarantee.
A limited company is legally separate from its members, meaning that the company can ordinarily own assets, enter contracts, incur debts and conduct legal proceedings in its own name. "Limited" therefore primarily refers to the legal limitation of members' liability rather than the size, profitability or operational scope of the business. A limited company can be a one-person business, a family enterprise, an international group or a publicly traded organisation depending on its particular form.
The most common UK commercial structure for owner-managed businesses is a private company limited by shares. Such a company has a share capital divided into shares, and shareholders normally have rights associated with those shares. If the company becomes insolvent, shareholders are ordinarily not personally responsible for ordinary company debts beyond the amount they have agreed to contribute, subject to specific legal circumstances. The company itself remains responsible for its own liabilities.
This separation between the company's obligations and the shareholders' personal assets is one of the principal reasons entrepreneurs use limited companies. It is important, however, to distinguish limited liability from an absolute guarantee against personal loss, because shareholders or directors can incur personal obligations in circumstances such as personal guarantees or unlawful conduct.
A limited company has a formal legal structure involving shareholders and directors. Shareholders are the members who own shares in a company limited by shares, while directors are responsible for managing or overseeing the company according to applicable law and its constitutional documents. A single individual can often be both the sole shareholder and sole director of a private limited company, which makes the structure suitable for owner-managed businesses. Larger limited companies can have numerous shareholders and several directors. The company remains legally distinct from those individuals even where one person controls all or nearly all of the ownership.
Limited companies have continuing administrative responsibilities. In the UK, an incorporated company generally needs to maintain statutory records, submit required information to Companies House, prepare and file accounts where required, submit confirmation statements and deal with taxation and other obligations. Directors must comply with applicable statutory duties, including duties concerning the company's interests, conflicts and reasonable care and skill. The company may also have responsibilities involving payroll, VAT, employment law, data protection, contracts, intellectual property and sector-specific regulation. These obligations distinguish an incorporated limited company from an informal business arrangement and create administrative costs that should be considered when choosing the structure.
A company limited by guarantee operates differently from a company limited by shares. Instead of having shareholders with ordinary share ownership, members promise to contribute a specified amount if the company is wound up, subject to the company's constitution and applicable law. This form is commonly associated with non-profit organisations, clubs, associations and community bodies, although the exact uses depend on legal circumstances. A private company limited by shares is generally more appropriate for an ordinary commercial business seeking to allocate ownership through shares. The word "limited" alone therefore does not identify the precise corporate structure; the distinction between shares and guarantees is important.
Limited companies can offer advantages including separate legal personality, potentially limited shareholder liability, continuity, clearer ownership arrangements and opportunities to retain profits within the company. They can also facilitate bringing in additional shareholders or transferring ownership through shares, subject to applicable restrictions. Disadvantages include incorporation and ongoing administration, accounting and filing requirements, the need to maintain appropriate corporate records and potentially greater complexity than operating as a sole proprietor. Tax treatment also differs from that of an individual business owner and can change over time according to legislation. The choice of structure should therefore consider liability, taxation, administration, ownership, financing and long-term objectives rather than treating limited incorporation as automatically preferable.
Limited liability does not mean that directors can act without personal responsibility. Directors can have individual duties under company law and may become personally liable in certain circumstances, particularly where they undertake personal guarantees, commit their own wrongful acts or become subject to specific statutory liability. A company's separate legal personality also does not prevent employees, directors or shareholders from being personally liable for their own independent actions. The company may additionally be required to maintain appropriate insurance and financial controls depending on the nature of its activities. The corporate structure provides a legal framework for allocating responsibility, but it does not eliminate all business or personal risk.
Limited company should be distinguished from "corporation", "private company", "public company" and "sole proprietorship". A corporation is a broad concept of separate legal personality in many legal systems; a limited company is a particular form of incorporated entity characterised by limited member liability. A private company may be limited by shares or guarantee, while a public limited company is a distinct public corporate form.
A sole proprietorship, by contrast, generally does not create a separate legal entity between the owner and the business. A limited company can therefore be understood as a legal structure rather than a description of business size or business activity. The same limited-company structure can be used for businesses ranging from a single-person consultancy to a substantial commercial enterprise.
