Sole Trader vs Limited Company: Which is Right for You?

By Ben, Founder of Solofold  ·  Published May 2026  ·  8 min read

I ran as a sole trader for 12 years before incorporating. The decision to switch saved me tax — but also added complexity and cost I hadn't fully anticipated. Here is the honest comparison I wish I'd had before making that decision.

The short answer

Sole trader is simpler, cheaper to run, and perfectly suitable for most freelancers and consultants — especially below £40,000-50,000 profit. Limited company becomes financially advantageous above that level, but brings meaningful additional costs and administration.

The decision should be driven by your profit level, not by what sounds more impressive. Many people incorporate too early and end up paying more overall once accountancy costs are factored in.

Sole trader: How it works

As a sole trader you and your business are legally the same entity. You register with HMRC, keep records of income and expenses, and file a Self Assessment return each January. Tax is calculated on your profit — income minus allowable expenses.

Tax rates (2026/27):
Personal Allowance: £12,570 (0% tax)
Basic rate: 20% on profits up to £50,270
Higher rate: 40% on profits £50,271-£125,140
Additional rate: 45% above £125,140

Plus Class 4 NI at 9% (up to £50,270) and 2% above. Your entire profit is subject to these rates — there is no flexibility on how you extract money from the business.

Limited company: How it works

A limited company is a separate legal entity from you. It pays Corporation Tax on its profits (currently 19-25% depending on profit level). You then extract money as a combination of salary and dividends.

Typical extraction strategy:
Salary: £12,570/year (equal to personal allowance — no income tax)
Dividends: Remainder of what you need to live on
Dividend tax rates: 8.75% (basic), 33.75% (higher), 39.35% (additional)

The tax saving comes from dividends being taxed at lower rates than income — and the flexibility to leave profits in the company and extract them in lower-income years.

Worked comparison: £60,000 profit

As a sole trader (£60,000 profit):
Income tax: approximately £11,432
Class 4 NI: approximately £3,487
Total tax: approximately £14,919
Take-home: approximately £45,081

As a limited company (£60,000 profit):
Corporation tax: approximately £11,400
Income tax on salary + dividends: approximately £4,200
Total tax: approximately £15,600
Accountancy costs: approximately £1,500-2,500/year
Net saving vs sole trader: approximately -£1,000 to +£419 depending on accountant costs

At £60,000 profit the tax saving from incorporating is often wiped out by higher accountancy fees. The financial case for incorporation strengthens significantly above £80,000-100,000 profit.

Key differences beyond tax

Liability
Sole trader: You are personally liable for business debts. If the business owes money, your personal assets (including your home) could be at risk.
Limited company: Your liability is limited to what you have invested in the company. Personal assets are protected.

Administration
Sole trader: Self Assessment tax return once a year. Simple.
Limited company: Annual accounts, confirmation statement, Corporation Tax return, payroll (PAYE), dividend records. Significantly more complex — hence the higher accountancy fees.

Credibility
Some larger clients prefer working with limited companies — they can sometimes be perceived as more established. In practice this matters much less than people expect.

Mortgages and loans
Sole traders often find it simpler to obtain mortgages — lenders use your Self Assessment income directly. Limited company directors need to show both salary and dividends, and some lenders are less familiar with this structure.

When to switch to a limited company

Consider incorporating when:

✓ Your profit consistently exceeds £50,000-60,000/year

✓ You want to retain profits in the business (not extract everything)

✓ You have meaningful liability risk in your line of work

✓ A specific major client requires it

✓ You plan to take on employees or business partners

Stay as a sole trader if

✓ Your profit is under £50,000/year

✓ You want minimal administration

✓ You are just starting out and growing

✓ You extract most of your profit as personal income each year