The structure you choose shapes your tax, admin and personal risk. This guide compares sole trader and limited company in plain English so you can decide what fits.
Published July 2026 · Updated July 2026
As a sole trader you and your business are legally the same. You keep all profits after tax, report through Self Assessment, and enjoy minimal admin. The catch is unlimited liability: if the business owes money, you owe it personally.
A limited company is a separate legal entity. Your liability is limited to what you invest, so personal assets are generally protected. In return you file accounts at Companies House, submit a Corporation Tax return, and follow UK GAAP.
Sole traders pay Income Tax and National Insurance on profits. Company owners often take a small salary plus dividends, which can be more tax efficient at higher profit levels, though the gap has narrowed and depends on your numbers.
Weigh three things: how much personal risk you are exposed to, how much admin you are willing to take on, and your profit level. Low risk and modest profit often suits a sole trader; higher profit or real liability exposure points to a company.
Yes, and many do as profits grow. You incorporate a new company and transfer the trade across, with some tax points to handle.
No. It depends on your profit and how you extract money. Above certain profit levels it can help, but admin and accountancy costs offset some of the benefit.
Mostly, but not always. Directors can still be liable if they give personal guarantees or act improperly.
This guide is general information for UK small business owners, not accounting, tax or legal advice. Rules, rates and thresholds reflect 2026/27 and change over time; always check the linked official source or a qualified adviser for your situation.