A sole trader is the simplest way to work for yourself, but you and the business are legally the same — so you're personally liable for its debts. A limited company is a separate legal entity that protects your personal assets and can be more tax-efficient at higher profits, but it comes with more admin and public filing. The right choice depends on your profit level, your appetite for paperwork, and how much personal risk you're comfortable with.
The quick comparison
| Sole trader | Limited company | |
|---|---|---|
| Liability | Unlimited — your personal assets are at risk | Limited to what you put in |
| Tax | Income Tax + National Insurance on profits | Corporation Tax on profits; you draw salary + dividends |
| Admin | Light — one Self Assessment a year | Heavier — annual accounts, Corporation Tax return, confirmation statement |
| Privacy | Your details stay private | Company and director details are public at Companies House |
| Credibility | Fine for many clients | Can look more established to larger clients |
When a sole trader usually makes sense
- You're starting out or testing an idea
- Profits are modest
- You want minimal admin and cost
- You'd rather keep your affairs private
Being a sole trader is quick to set up, cheap to run, and you keep control of everything. The trade-off is unlimited liability and, once profits grow, potentially more tax than a company would pay.
When a limited company usually makes sense
- Profits are growing and tax efficiency matters
- You want to protect personal assets from business risk
- You're taking on larger clients who prefer to deal with companies
- You want to retain profit in the business or bring in investment
A company can be more tax-efficient at higher profit levels through a mix of salary and dividends, and it ring-fences your personal finances. The cost is more compliance — statutory accounts, a Corporation Tax return, payroll if you take a salary, and public filings.
The honest answer: it depends on the numbers
There's no universal "better" structure — it turns on your specific profit, how much you need to draw personally, and your plans for growth. Tax rates, allowances and thresholds also change from year to year, so a decision that's right this year should be reviewed as you grow.
This is exactly the kind of thing we model for clients: we'll run your numbers both ways and show you the real take-home difference before you decide. Book a free consultation and we'll make the right call obvious.
This article is general information, not personal tax or legal advice. Rates and thresholds change — speak to us about your circumstances.