Sole trader vs limited company — which is better for a freelancer earning over £50,000?
Direct Answer
For most freelancers earning over £30,000–£35,000 profit, a limited company is more tax-efficient than operating as a sole trader. At £50,000 profit, the tax saving is typically £3,000–£6,000 per year. At £80,000, the saving can exceed £10,000. However, a Ltd company has higher admin costs and more compliance obligations. The tax saving almost always outweighs the cost above £35,000.
Side-by-side comparison
| Factor | Sole Trader | Limited Company |
|---|---|---|
| Tax on profits (basic rate) | 20–29% (IT + NI) | 19% corp tax + 8.75% dividend |
| National Insurance | Class 2 + Class 4 NI | Employer NI on salary only |
| Personal liability | Unlimited | Limited to share capital |
| Admin burden | Low | Medium |
| Accountant cost | £20–50/month | £70–130/month |
| Pension tax relief | Personal contributions | Company contributions (no NI) |
| IR35 exposure | N/A | Relevant if contracting |
| Credibility with clients | Lower | Higher |
| Set-up cost | Free | £12–50 (online) |
Tax comparison at different income levels
| Annual profit | Sole trader tax | Ltd company tax | Annual saving |
|---|---|---|---|
| £30,000 | ~£7,200 | ~£5,400 | ~£1,800 |
| £50,000 | ~£14,200 | ~£9,600 | ~£4,600 |
| £70,000 | ~£23,500 | ~£15,200 | ~£8,300 |
| £80,000 | ~£27,800 | ~£17,400 | ~£10,400 |
Figures approximate, based on 2025/26 rates, sole director, salary at £12,570, remaining as dividends.
When each structure is the right choice
Sole trader is right when:
Annual profit below £25,000–£30,000
You want maximum simplicity — no Companies House filings
Testing a business idea, unsure if it will continue
Clients don't require Ltd company status
Transition period (recently redundant, part-time freelancing)
Limited company is right when:
Annual profit consistently above £30,000+
Corporate/public sector clients require Ltd company status
You want liability protection (personal assets protected)
You plan to grow and take on employees
You want to build retained profits and reinvest
The liability protection argument
As a sole trader, you are the business — unlimited personal liability for debts and legal claims. Your home, savings, and assets are at risk.
As a Ltd company director, your liability is limited to your share capital (with exceptions for personal guarantees and wrongful trading).
For IT contractors, consultants, and advisors: a PII claim could theoretically exceed personal assets — the Ltd structure provides a legal separation.
Can you switch from sole trader to Ltd later?
Yes — incorporating from sole trader to Ltd is straightforward
Notify HMRC of cessation as self-employed and register as director/employer
Outstanding sole trader debtors/creditors don't automatically transfer
Timing matters — incorporate at the start of a new tax year for simplicity
Not sure which structure is right for you?
Autobooks advises on business structure, incorporation, and tax planning — from £89+VAT/month.