Sole Trader vs Limited Company UK: Which is Best for You? 2026 Guide
Key Differences
The main differences between sole trader and limited company structures:
- Legal Status: Sole traders and their business are one entity; limited companies are separate
- Liability: Sole traders have unlimited liability; limited companies protect personal assets
- Tax: Sole traders pay income tax; limited companies pay corporation tax
- Admin: Sole traders have minimal paperwork; limited companies require annual accounts and Companies House filings
💡 Quick Tip
Thistle works for both sole traders and limited companies—switch your business structure anytime without changing software.
Tax Comparison
| Profit Level | Sole Trader Tax | Limited Company Tax |
|---|---|---|
| £20,000 | £1,486 + £670 NI = £2,156 | £3,800 corp tax + £0 dividend tax = £3,800 |
| £50,000 | £7,486 + £3,368 NI = £10,854 | £9,500 corp tax + £1,368 dividend tax = £10,868 |
| £100,000 | £27,486 + £4,368 NI = £31,854 | £19,000 corp tax + £6,475 dividend tax = £25,475 |
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Start Free Trial →When to Incorporate
Consider forming a limited company when:
- Your profits consistently exceed £50,000/year
- You want to protect personal assets from business liability
- You plan to raise investment or sell the business
- You want to appear more professional to corporate clients
Frequently Asked Questions
What is the difference between sole trader and limited company?
A sole trader is self-employed and personally liable for business debts. A limited company is a separate legal entity with limited liability protection but more admin requirements.
Which is more tax efficient?
For profits under £25k, sole trader is usually better. Between £25k-£50k they're similar. Above £50k, a limited company is often more tax efficient due to lower corporation tax rates.
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