One of the most common questions we're asked at White & Co Accountants is whether to trade as a sole trader or set up a limited company. There's no single right answer — it depends on your income, circumstances, and plans for the future. Here's a breakdown of the key differences to help you decide.
What is a sole trader?
A sole trader is the simplest business structure — you trade as an individual, register with HMRC for Self Assessment, and pay Income Tax and National Insurance on your profits. There's no separation between you and your business legally, meaning you're personally liable for any debts or claims against the business.
What is a limited company?
A limited company is a separate legal entity, distinct from its owners (shareholders) and directors. The company's finances are separate from your personal finances, and your personal liability is limited to the value of shares you hold. Limited companies are registered at Companies House and must file annual accounts and a corporation tax return.
Tax comparison
Sole Trader
- Pay Income Tax at 20%, 40%, or 45% on profits above personal allowance
- Pay Class 4 NIC at 6% on profits between £12,570 and £50,270, and 2% above
- Personal allowance of £12,570 before any tax is due
Limited Company
- Company pays Corporation Tax at 19% (profits up to £50,000) or up to 25% (profits over £250,000)
- Directors typically take a small salary plus dividends — a tax-efficient combination
- Dividend tax rates are lower than Income Tax rates for higher earners
- More scope for tax planning, including pension contributions and timing of income
Generally speaking, a limited company becomes more tax-efficient once profits exceed around £30,000–£40,000 per year, though this depends on your circumstances.
Liability
This is one of the most significant differences. As a sole trader, you are personally liable for all business debts — meaning creditors could pursue your personal assets, including your home, if the business can't pay. As a limited company director, your personal liability is limited to the value of your shares, providing much greater protection.
Administration
Sole trading is administratively simpler — you just need to register for Self Assessment and file an annual tax return. A limited company involves more admin: filing annual accounts at Companies House, submitting a corporation tax return, running payroll for director salaries, and maintaining statutory records. The additional costs and time involved are worth considering.
Which is right for you?
Consider a limited company if you have profits above £30,000–£40,000, want personal liability protection, are looking to grow or take on employees, or want more flexibility in how you extract income. Consider remaining a sole trader if you're just starting out, have lower profits, or want to keep things simple and low-cost.
We can help you decide
At White & Co Accountants in Sutton Coldfield, we advise clients across Birmingham and the West Midlands on the most tax-efficient business structure for their circumstances. Whether you're just starting out or thinking about incorporating an existing sole trader business, we can run the numbers and help you make the right decision.
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