Choosing between sole trader and limited company is one of the biggest decisions you'll make — and it affects tax, liability, and admin for years to come.

There's no universal "best" option — it depends on your income, risk, and growth plans.

At Brightson Accounting in Wolverhampton, we help business owners across the West Midlands make this decision every week.

This guide compares both structures side-by-side — so you can choose the right one for your situation.

Quick Summary
  • Sole trader: Simple, low cost, higher tax at higher incomes
  • Limited company: More tax-efficient, limited liability, more admin
  • Most people switch to limited company at £30k–£50k profit
  • You can change structure later (but it's easier to start correctly)

What Is a Sole Trader?

A sole trader is the simplest business structure in the UK.

You and the business are legally the same entity — which means:

  • You keep all profits (after tax)
  • You're personally liable for all debts
  • You pay Income Tax and National Insurance on profits

Registration is free and takes minutes via HMRC's website.

What Is a Limited Company?

A limited company is a separate legal entity — distinct from you as an individual.

This means:

  • The company owns assets and liabilities (not you)
  • Your personal liability is limited to your share capital
  • The company pays Corporation Tax on profits
  • You pay yourself a salary and/or dividends

Registration costs £12 via Companies House and takes 24 hours.

Tax Comparison

This is where the biggest difference lies — and why most accountants recommend limited companies once profits exceed £30,000–£50,000.

Sole Trader Tax:

  • Income Tax: 0% up to £12,570, 20% up to £50,270, 40% up to £125,140
  • Class 2 NI: £3.45/week (if profits exceed £12,570)
  • Class 4 NI: 9% on profits between £12,570–£50,270, then 2%

Limited Company Tax:

  • Corporation Tax: 19% on profits up to £50,000, 26.5% above £250,000
  • Salary: Typically £12,570 (tax-free)
  • Dividends: £500 tax-free, then 8.75% up to £50,270

At £40,000 profit, a limited company owner typically saves £2,000–£3,000/year compared to a sole trader.

Many small businesses we work with in the West Midlands incorporate once they hit consistent profits of £35,000+.

💡 Want to see how much tax you could save?

Most UK business owners are overpaying without realising it.

👉 Try the Corporation Tax Calculator

Read more: How Much Tax Will I Pay as a New Business Owner?

Liability & Risk

Sole Trader:

You are personally liable for all business debts.

If the business fails, creditors can pursue your personal assets (home, savings, car).

Limited Company:

Your liability is limited to the amount you invested in shares (usually £1–£100).

Your personal assets are protected (unless you've given personal guarantees).

💡 Note:
If you're in a high-risk industry (construction, consulting, healthcare), limited liability can be a major advantage.

Admin & Compliance

Sole Trader:

  • Simple bookkeeping
  • One Self Assessment tax return per year
  • No Companies House filing
  • Minimal ongoing costs

Limited Company:

  • More detailed bookkeeping
  • Annual accounts filed with Companies House
  • Corporation Tax return (CT600)
  • Confirmation Statement (annual)
  • Payroll setup (even if you're the only employee)

Most limited company owners use an accountant in Wolverhampton to handle compliance — it's faster, safer, and frees up your time.

Costs

Sole Trader:

  • Registration: Free
  • Accountant fees: £300–£600/year (optional but recommended)

Limited Company:

  • Registration: £12
  • Accountant fees: £800–£1,500/year (essential for most)
  • Software: £10–£30/month

At Brightson Accounting, we offer fixed-price packages for both structures.

Perception & Credibility

Limited companies are often perceived as more professional and established.

Some clients and suppliers prefer working with "Ltd" businesses — especially in B2B sectors.

From what we see with clients in Wolverhampton, this matters more in consultancy, IT, and professional services.

Raising Finance

Limited companies find it easier to:

  • Secure business loans
  • Attract investors
  • Bring on partners or shareholders

Sole traders typically rely on personal loans or guarantees.

When to Choose Sole Trader

Choose sole trader if:

  • You're testing a side hustle or new idea
  • Your profits are under £20,000/year
  • You want minimal admin
  • You're in a low-risk industry

When to Choose Limited Company

Choose limited company if:

  • Your profits exceed £30,000/year
  • You want to protect personal assets
  • You plan to reinvest profits in the business
  • You want to appear more professional
  • You're in a high-risk sector

Not sure which structure is right? Speak to an accountant.

Can You Switch Later?

Yes — you can incorporate a sole trader business at any time.

The process involves:

  • Forming a limited company
  • Transferring assets (equipment, stock, clients)
  • Closing your Self Assessment registration

We help businesses in Birmingham and Wolverhampton incorporate every month — it's straightforward with the right support.

Full guide: How to Start a Business in the UK (2026)

Need help starting your business?

We help business owners across Wolverhampton and the West Midlands set up correctly, avoid tax mistakes, and stay compliant.

Book a Free Consultation

Disclaimer

This content is for general guidance only and based on UK tax rules as of April 2026. Tax rules may change. For tailored advice, contact Brightson Accounting.