Sole Trader vs Limited Company: Which is Better for UK Freelancers?

If you're going freelance in the UK, one of the first decisions you'll face is whether to operate as a sole trader or set up a limited company. Both are legitimate business structures, but they suit different situations.

This guide breaks down the key differences so you can make the right call for your circumstances.

What Is a Sole Trader?

A sole trader is the simplest way to work for yourself in the UK. You register as self-employed with HMRC, file a Self Assessment tax return each year, and keep all the profits after tax.

There's no company to set up or maintain — you and the business are legally the same entity.

Pros of sole trader:

• Simple to set up (just register with HMRC)
• Minimal admin — one Self Assessment return per year
• No Companies House filing requirements
• Less accountancy overhead

Cons of sole trader:

• Unlimited personal liability — your personal assets are at risk if the business has debts
• Can appear less "established" to some clients
• Less tax-efficient at higher income levels

What Is a Limited Company?

A limited company (Ltd) is a separate legal entity from you. You become a director and shareholder of the company. Profits belong to the company first, and you pay yourself via salary and dividends.

Pros of limited company:

• Limited liability — your personal finances are protected
• More tax-efficient above ~£35,000–£40,000 profit
• Looks more professional to larger clients
• Easier to bring in partners or investors later

Cons of limited company:

• More admin — annual accounts, confirmation statement, Corporation Tax return
• Higher accountancy costs (typically £500–£1,500/year vs £100–£400 for sole trader)
• Must pay yourself a salary and manage PAYE if above thresholds
• IR35 risk if working through intermediaries for large clients

Tax Comparison: Sole Trader vs Limited Company

Sole Trader Tax (2025/26)

As a sole trader, you pay:

• Income Tax on profits above the Personal Allowance (£12,570)
  • 20% basic rate (£12,571–£50,270)
  • 40% higher rate (£50,271–£125,140)
• National Insurance — Class 4 NI at 9% on profits £12,570–£50,270, then 2% above

Limited Company Tax (2025/26)

As a limited company director:

• The company pays Corporation Tax at 19%–25% on profits
• You pay yourself a low salary (typically around £12,570) — no Income Tax or NI on this
• Additional income comes as dividends — taxed at 8.75% (basic rate), 33.75% (higher rate)

The key advantage: Dividends are not subject to National Insurance, saving you around 9–12% compared to employment income.

When Does a Limited Company Save Tax?

As a rough guide, limited companies become more tax-efficient once your profits exceed approximately £35,000–£40,000 per year, accounting for the additional accountancy costs.

Below that level, the admin costs and accountancy fees often cancel out the tax saving.

Liability: The Big Difference

This is often the deciding factor:

• Sole trader: If a client sues you, your personal bank account, car, and home could be at risk
• Limited company: Liability is limited to what's in the company — your personal assets are protected

If you're doing any work where things could go wrong (consulting, building software, giving advice), a limited company provides meaningful protection.

That said, most professional indemnity insurance policies are available for both structures, which mitigates sole trader risk significantly.

VAT: The Same for Both

VAT registration is based on turnover, not business structure. If your taxable turnover exceeds £90,000 in a 12-month period, you must register for VAT — whether you're a sole trader or limited company.

You can also register voluntarily below the threshold, which may benefit B2B freelancers who work with VAT-registered businesses.

Which Should You Choose?

Choose sole trader if:

• You're just starting out and want simplicity
• Your income is under £35,000–£40,000/year
• You want minimal admin
• You have professional indemnity insurance that covers your liability risk

Choose limited company if:

• Your income is over £35,000–£40,000/year
• You want personal liability protection
• You work with corporate clients who prefer dealing with companies
• You're planning to grow, take on employees, or bring in investors

How to Register

As a sole trader: Register for Self Assessment on GOV.UK

As a limited company: Incorporate at Companies House — costs £50 online and takes minutes

Invoicing as a Sole Trader or Limited Company

Whichever structure you choose, you'll need to send professional invoices. The key difference:

• Sole trader invoices should include your full name and business name (if you trade under one)
• Limited company invoices must include the company's registered name, registered address, and Companies House number

Billdrop handles both — you can customise your invoice with the right sender details for your business structure. Create a free invoice →

Summary

| | Sole Trader | Limited Company | |---|---|---| | Setup | Register with HMRC | Incorporate at Companies House | | Tax efficiency | Good under ~£35k | Better above ~£35k | | Liability | Unlimited | Limited | | Admin | Minimal | Moderate | | Accountancy cost | £100–£400/yr | £500–£1,500/yr | | IR35 risk | Lower | Yes, if caught |

Both structures are used by thousands of successful UK freelancers. The right choice depends on your income level, risk tolerance, and how much admin you're willing to do.

When in doubt, speak to an accountant — many offer free initial consultations.