Sole Trader vs Limited Company: Which Structure Is Right for You?

The key differences at a glance

	Sole trader	Limited company
Legal status	You and the business are the same legal entity.	The company is a separate legal entity from you as a director and shareholder.
Personal liability	Unlimited — you are personally responsible for business debts.	Generally limited to what you invested in shares (exceptions include personal guarantees and wrongful trading).
Tax on profits	Income tax and Class 4 National Insurance on your profits after allowable expenses.	Corporation tax on company profits, then personal tax on salary and dividends you extract.
Admin burden	Lower — typically a self-assessment return as a minimum.	Higher — Companies House filings, statutory accounts, corporation tax return, payroll if you take a salary, and maintaining company records.
Setup cost	No Companies House fee; register for self-employment with HMRC.	Companies House incorporation fee — £50 for online registration in most cases.
Privacy	Less information on public registers.	Certain company details appear on the Companies House register.
IR35 exposure	Off-payroll working rules can still apply depending on how you contract, but the classic “personal service company” structure is a limited company issue.	Personal service companies are often in scope of IR35 and off-payroll working when trading through a company.
Credibility	Common for freelancers; suitability depends on your sector and clients.	Some clients prefer contracting with a limited company.

How tax works as a sole trader

As a sole trader, you pay income tax on your business profits after the personal allowance (£12,570 in 2026/27). Profits above that are taxed at 20% up to £50,270, 40% up to £125,140, and 45% above £125,140.

You also pay Class 4 National Insurance on profits: 9% between £12,570 and £50,270, and 2% above £50,270.

You report everything through self-assessment. There is no separate “company” tax return for the structure itself.

How tax works as a limited company director

The limited company pays corporation tax on its taxable profits. In the figures used across ClearFigures calculators for 2026/27, profits up to £50,000 are taxed at the small profits rate (19%); above that threshold the main corporation tax rate (25%) applies in those same calculator models.

Most directors take a modest salary plus dividends from post-tax retained profits. A common approach aligns salary with the employer National Insurance secondary threshold (£5,000 in our 2026/27 HMRC config used on this site): at that salary, employer and employee NI shown in our tools are typically nil while the year can still count as a qualifying year for State Pension subject to wider rules.

Dividends do not attract National Insurance. Dividends above the dividend allowance (£500 in our site config for 2026/27) attract dividend income tax stacked on top of salary for banding purposes:

Band	Dividend tax rate used on this site (2026/27)
Within the dividend allowance	0% on dividends covered by the allowance
Dividend basic rate	8.75%
Dividend higher rate	33.75%
Dividend additional rate	39.35%

At what income level does a limited company become more efficient?

There is no single HMRC “switch-over” figure — it depends on expenses, how much you extract, VAT status, pension, and admin costs.

As a rough guide, ClearFigures’ Ltd vs sole trader calculator copy uses a broad rule of thumb that a limited company often becomes more tax-efficient than sole trader status at annual profits above around £30,000-£35,000, because dividends avoid National Insurance compared with taking profit as salary. Below that band, accountants’ fees for a limited company (£800–£2,000 in the £ range shown in FAQ content on ClearFigures) can swallow much of any saving.

Recent reductions in the dividend allowance and increases in employer National Insurance thresholds on this site change the maths — hence using the calculator matters more than quoting a meme number.

The admin burden — being realistic

If you incorporate, budget time and/or fees for recurring tasks:

• Annual statutory accounts filed with Companies House
• A corporation tax return to HMRC after your company accounting period ends
• Confirmation statement filed at Companies House each year
• PAYE RTI filings if you run payroll for your salary
• Company bank account and bookkeeping
• If VAT registered, Making Tax Digital for VAT record-keeping and filing

IR35 — the contractor consideration

If you trade through your own limited company, IR35 (the “off-payroll working” rules) can treat engagement as Inside IR35 depending on contract terms and actual working arrangements. Outside IR35, you retain more flexible extraction of profits via dividends subject to corporation tax—Inside IR35, your intermediary may operate more like PAYE for that engagement.

Whether IR35 bites is factual to each assignment; use HMRC guidance and contracts to assess status—this site’s IR35 calculator compares indicative take-home under common scenarios.

Other factors to consider

Limited liability

For many risks, creditors pursue the company, not your personal savings—subject to guarantees and conduct rules.

Client perception

Some industries expect invoices from “Ltd” entities; others treat sole traders as normal.

Business bank account

A limited company should keep its finances separate via a dedicated business bank account; sole traders are strongly advised to separate business and personal money even though legally it is one pot.

Making Tax Digital

Self-assessment taxpayers may fall under broader Making Tax Digital requirements as HMRC timelines evolve; VAT-registered traders already follow MTD for VAT whoever they trade as.

How to switch from sole trader to limited company

1. Incorporate a new company via Companies House (online filing is typically £50 and often approved quickly).
2. Open a business bank account in the company name.
3. Move contracts, invoicing domain, and bookkeeping into the new entity with clear cut-over dates.
4. Register for PAYE/CIS/VAT/etc. if applicable for the company.
5. Talk to your accountant before transferring intangible assets (“goodwill”)—there may be tax charges.
6. Stop sole trader registrations when appropriate once activities have moved—and update HMRC.

Which should you choose?

Sole trader may suit you if:

• Profit is modest and you want minimal compliance cost
• You are testing a new venture and want speed and simplicity
• You do not need the perception of a limited company

Limited company may suit you if:

• Profits are high enough that tax savings exceed professional fees
• You want limited liability separation for commercial risk
• Clients or agencies require a company structure

Frequently asked questions

Can I be both a sole trader and a limited company director?

Yes. You can operate one business as a sole trader and be a director of a separate limited company simultaneously.

Do I need an accountant for a limited company?

Not legally, but most directors do. Statutory accounts, corporation tax and payroll can be done yourself but most find a fixed-fee accountant (£800-£2,000 per year) worthwhile.

What is the fastest way to form a limited company?

Register online at Companies House. The fee is £50 and most applications are approved within 24 hours.

Can I convert my sole trader business to a limited company?

Yes. Register a new company and transfer your business activities. There are tax implications around goodwill and assets — seek accountant advice before incorporating.

Is a limited company always more tax efficient?

No. At lower profits, admin costs can outweigh the tax saving. Recent dividend allowance cuts and employer NI changes have also reduced the advantage at mid-range incomes. Use our calculator to find your crossover point.