Sole Trader vs Limited Company in the UK: Which Is Better for Your Business?

Choosing between a sole trader vs limited company in the UK is one of the first real decisions you make when you start a business, and it affects far more than paperwork. Your structure changes what happens if the business gets into debt, how you are taxed, how you take money out, and how much administration you do each year.

There is no single right answer: the structure that suits a freelancer testing an idea can be wrong for a growing business taking on risk. This guide compares both options using the current rates and rules on GOV.UK, so you can match the choice to your situation.

The quick answer

Start as a sole trader for the simplest possible start: no Companies House registration, one tax return a year, all decisions yours. Accept that you are personally responsible for the business’s debts.

Choose a limited company if protecting your personal assets matters, you expect to leave profits in the business, you want co-owners or investment, or your clients expect to deal with a company. Accept more filing, stricter rules about taking money out, and your company details appearing on a public register.

Sole trader vs limited company at a glance

What is a sole trader?

A sole trader runs a business as an individual. GOV.UK describes it as the simplest business structure to set up and keep records for. You work for yourself, are classed as self-employed, make all the decisions, and keep all the profits after paying tax.

You can start trading straight away. If you earn more than £1,000 from self-employment in a tax year (6 April to 5 April), you must register for Self Assessment and file a return each year — tell HMRC by 5 October in your business’s second tax year. Keep records of sales and expenses from day one, because they determine your profit and your tax.

Sole trader advantages

• Simplest start. No incorporation, no company law, no directors’ duties. If your budget is tight, our guide to how to start a business with no money in the UK shows how little a sole trader launch can cost.
• One tax system. Your profit is taxed as your personal income — one return, one set of calculations.
• Control and privacy. No shareholders to consult, and your accounts are not published.
• Easy to close. If the idea does not work, you stop trading, file your final return and move on.

Sole trader disadvantages

• Unlimited liability. The big one. With no separation between you and the business, you are personally responsible for all its debts, and your personal assets are exposed if it cannot pay. Insurance can reduce some risks, but not your legal position.
• Tax rises with profit. All profit is taxed in the year it is made at your Income Tax rates — even profit you would rather leave in the business to fund growth.
• Perception. Some larger clients and agencies prefer, or even require, suppliers to be limited companies.
• No shares to sell. You cannot split ownership neatly with a co-founder or sell shares in the business.

What is a limited company?

A limited company is legally separate from the people who own it. It is owned by shareholders, run by one or more directors (who can be the same people), and can hold assets, sign contracts and owe money in its own name. Most small companies are “limited by shares”, and one person can own 100% of the shares and be the only director.

You must register with Companies House before trading. As a director you are legally responsible for running the company properly: keeping records, filing annual accounts and a Company Tax Return, paying Corporation Tax, filing a confirmation statement at least once every 12 months, and keeping company money separate from your own. An accountant can help, but GOV.UK is clear the responsibility stays with you — directors who fail in their duties can be fined, prosecuted or disqualified.

Limited company pros and cons

The pros:

• Limited liability. Owners are responsible for company debts only up to the value of their investment, so if the company fails your personal assets are generally protected — though not where you have personally guaranteed borrowing.
• A separate, professional identity. Its own name and legal existence can help with clients, suppliers and tenders.
• Flexibility over profit. You choose how and when to take money out — salary, dividends, or leaving profit in the company for future investment.
• Easier to grow with others. You can issue shares and bring in co-founders or investors, and the company can apply for loans and investment in its own name.

The cons:

• More administration. Annual accounts, a Company Tax Return, a confirmation statement and reporting changes to Companies House all take time or cost money.
• Running costs. Incorporation costs £100 online, and a confirmation statement costs £50 online (£110 by post) in each 12-month payment period. Many directors also pay an accountant.
• Money is not simply yours. The company’s bank account is not your personal account; taking money out has rules and paperwork, explained below.
• Public information. The registered office address, directors and filed accounts are available on the public register for anyone to see.

How tax works for each structure

Tax is where most people try to make this decision, so understand the whole picture rather than comparing headline rates.

Tax as a sole trader

You pay Income Tax on your profits — income minus allowable business expenses. For 2026/27, the standard Personal Allowance is £12,570. In England, Wales and Northern Ireland, profits above that are taxed at 20% up to £50,270, 40% from £50,271 to £125,140, and 45% above £125,140.

You also pay Class 4 National Insurance: for 2026/27, 6% on profits between £12,570 and £50,270, and 2% above £50,270. If profits are £7,105 or more, Class 2 contributions are treated as paid, protecting your National Insurance record. HMRC works out both taxes from your Self Assessment return.

Tax as a limited company

The company pays Corporation Tax first. For the financial year starting 1 April 2026, profits of £50,000 or less are taxed at the small profits rate of 19%, and profits over £250,000 at the main rate of 25%. Profits in between are taxed at the main rate reduced by marginal relief, so the effective rate rises gradually. Both limits are reduced if you have associated companies or a short accounting period.

Then you pay personal tax on what you take out:

• Salary. The company must register as an employer and run payroll, deducting Income Tax and National Insurance and paying employer’s National Insurance to HMRC.
• Dividends. Paid from profits after Corporation Tax — a company cannot pay out more than its available profits, and each dividend needs a directors’ meeting to declare it, minutes, and a dividend voucher. You get a £500 dividend allowance; for 2026/27, dividends above it are taxed at 10.75% (basic rate band), 35.75% (higher) and 39.35% (additional). Dividends are not a business cost for Corporation Tax.

Is a limited company more tax efficient?

Sometimes — but not in the way it is often sold. Comparing 19% Corporation Tax with 20% Income Tax tells you almost nothing, because the company owner is effectively taxed twice: Corporation Tax on company profit, then dividend tax when it is taken out personally. At lower profits, that second layer, plus accountancy and filing costs, can wipe out any saving. A company tends to work better when profits are higher, or when you can leave money in the business — retained profit has only borne Corporation Tax, and can be taken out in a later year when your personal position may differ.

There is no official profit figure at which a company suddenly becomes cheaper: it depends on how much you take out, your other income and your accountant’s fees. Treat any single “switch at this profit” claim with caution.

Liability and risk: the difference that matters most

For many businesses, risk matters more than a small tax difference. As a sole trader, a large unpaid bill or a contract gone wrong is ultimately your personal problem. As a limited company, the debt belongs to the company and your exposure is normally limited to what you have put in.

Think about your real-world risk. A freelance writer working from home, with no stock or premises, has modest exposure that insurance may cover well. A business signing leases, holding customer deposits, employing staff or ordering expensive stock carries far more — that is where limited liability earns its extra administration. It still has limits: directors remain responsible for their legal duties, and a personal guarantee makes that debt yours whatever your structure.

What about VAT?

Your structure makes no difference to VAT. Both sole traders and limited companies must register if taxable turnover goes over £90,000 in any rolling 12-month period, or is expected to go over £90,000 in the next 30 days alone, and either can register voluntarily below the threshold. Because the test is rolling, not based on the tax year, growing businesses need to watch it monthly — our full guide explains when you need to register for VAT in the UK.

Which structure should you choose?

Choose sole trader if you are testing an idea, working alone with low costs and low risk, or freelancing alongside other work with modest profits. Before committing money to either structure, check the idea itself first — see how to validate a startup idea.

Choose a limited company if your business carries real financial risk — leases, stock, staff, customer deposits or large contracts — and you want your personal assets separated from it.

Choose a limited company if you have a co-founder, plan to bring in investors, or want something you could one day sell, because shares make ownership, investment and sale far cleaner. The same applies if profits are growing and you do not need to take every pound out, so money can build up in the company at Corporation Tax rates.

Stay flexible if you are unsure. GOV.UK confirms you can move between structures, usually more easily from sole trader to limited company. Many businesses start as sole traders and incorporate when risk, clients or profits justify it. The mistake is not starting simple — it is failing to review the decision as the business changes.

FAQs

Which is better for a brand-new small business, sole trader or limited company?

For most brand-new, low-risk businesses, sole trader: you can start trading immediately, there is no Companies House fee, and admin is one Self Assessment return a year. Start as a limited company instead if your work carries significant risk, your clients require it, or you are launching with co-founders or investors.

Can I switch from sole trader to a limited company later?

Yes. GOV.UK says you can move between structures, usually more easily from sole trader to limited company. It involves registering a new company and moving contracts, bank accounts and assets across, but it is a normal step as a business grows.

How much does it cost to set up a limited company?

Companies House charges £100 to incorporate online, £124 by post, or £156 for same-day incorporation through software. A confirmation statement then costs £50 online (£110 by post) in each 12-month period. A sole trader has no Companies House fee at all. Accountants’ and agents’ fees are extra and vary.

Does a limited company always save tax?

No. The company pays Corporation Tax (19% on profits of £50,000 or less), but you then pay tax on salary or dividends taken out — for 2026/27, dividends above the £500 allowance are taxed at 10.75%, 35.75% or 39.35% depending on your band. With that second layer and accountancy costs included, a company may save little at lower profits, and more where profits are higher or money is left in the company.

Is the VAT registration threshold different for sole traders and limited companies?

No — it is £90,000 of taxable turnover in any rolling 12-month period for both, or expected turnover over £90,000 in the next 30 days. Registration below the threshold is voluntary for both.