Sole Trader vs Limited Company: Is It Worth Incorporating?

“You should set up a limited company” is one of the most confidently given pieces of business advice on the internet — and also one of the most frequently wrong.

The truth is more nuanced: a limited company is the right structure for some people, at some stages of their business, under some circumstances. For many sole traders — especially those just starting out or earning under a certain level — it adds cost and complexity without a meaningful benefit in return.

I’m Anita, a Chartered Accountant who’s self-employed. I’ve seen both sides of this decision with clients over the years. This guide gives you the honest picture so you can make the call that’s right for your situation — not the one that sounds most impressive in a Facebook group.

Disclaimer: I’m an accountant but I’m not your accountant. This post is for guidance and information only. Everyone’s situation is different, and mistakes with business structure can be costly — so if you’re making this decision, please speak to a qualified accountant who can look at your specific numbers.

Do You Actually Need a Limited Company?

No. There is no legal requirement to run your business through a limited company. The majority of UK sole traders operate perfectly successfully without one — and many of the most successful freelancers, consultants, and small business owners stay as sole traders indefinitely.

The quickest and easiest way to start a business in the UK is to register as self-employed — you can do it online in 20 minutes. Many people start there and incorporate later if and when it makes sense. Relatively few go the other direction, because unwinding a limited company is significantly more complicated than starting one.

What Is a Limited Company?

A limited company is a separate legal entity — distinct from you personally. It has its own bank account, its own contracts, its own tax obligations. You run it as a director, but the company itself is responsible for its own debts and liabilities.

The name “limited” refers to limited liability — in theory, your personal assets are protected if the company runs into financial difficulty. In practice, as we’ll cover below, that protection is less complete than people assume.

The Four Main Business Structures in the UK

Most people reading this are choosing between the first two. That’s what the rest of this post focuses on.

Sole Trader vs Limited Company: The Key Differences

Tax

This is usually the main reason people consider incorporating — and it’s where the nuance matters most.

As a sole trader: You pay Income Tax and Class 4 National Insurance on your profits. At the basic rate, that’s 20% Income Tax + 6% NI = 26% on profits between £12,570 and £50,270.

As a limited company director: The company pays Corporation Tax on profits (19% for profits under £50,000, rising to 25% at £250,000+). You then extract money via a combination of a low salary and dividends. Dividends are taxed at lower rates than income — 8.75% at the basic rate — and aren’t subject to National Insurance.

The catch: The dividend allowance has dropped significantly in recent years — it’s now just £500 per year. And Corporation Tax increased in 2023. Together, these changes have narrowed the tax advantage of incorporating considerably compared to a few years ago.

The honest breakeven point for 2026/27:

• Under £40,000 profit → sole trader almost always wins. The admin costs of a limited company typically outweigh any tax saving.
• £40,000–£50,000 → grey area. Depends heavily on how much you need to draw personally and other factors.
• Over £50,000–£60,000 → limited company starts to make financial sense, typically saving £1,500–£6,000/year depending on your circumstances.

These are rough guides — the actual numbers depend on your full picture, including whether you can retain profits in the company rather than drawing them all personally.

Admin and Reporting

This is the real cost people underestimate.

As a sole trader: One Self Assessment tax return per year (or MTD quarterly updates if you’re above the threshold). Relatively simple, manageable without an accountant.

As a limited company: Annual accounts filed at Companies House. A Corporation Tax return (CT600) filed with HMRC. A Confirmation Statement filed each year. Director’s Self Assessment tax return. PAYE if you pay yourself a salary. These are non-negotiable — and getting them wrong results in penalties.

Most limited company directors need an accountant. That typically costs £500–£2,000/year, which needs to be factored into whether incorporation is actually worth it financially.

Liability Protection

A limited company separates your personal assets from your business liabilities — in theory.

In practice, the protection is less watertight than it sounds:

• Banks and lenders routinely require personal guarantees on loans and overdrafts, making you personally liable regardless of company structure
• HMRC can pursue directors personally for tax avoidance, wrongful trading, or unpaid taxes in certain circumstances
• Directors who draw excessive loans or dividends may be required to repay them
• HMRC has powers to prevent a company being struck off while tax remains unpaid

The liability protection is real for some risks — particularly third-party claims and supplier debts. But it’s not the total shield many people assume.

Privacy

Another practical difference worth knowing: a simplified version of your limited company’s annual accounts is publicly available at Companies House. As a sole trader, your finances are entirely private.

Credibility

Some clients — particularly larger organisations and government bodies — prefer to contract with limited companies. If this applies to your industry, it’s a legitimate reason to incorporate that goes beyond the tax question.

Should You Incorporate? A Decision Framework

Ask yourself these questions honestly:

Are your profits consistently above £50,000? If yes, it’s worth getting proper accountant advice on whether incorporating makes financial sense for your specific situation.

Do you need the liability protection? If your work carries meaningful risk of claims — consultancy, professional services, construction — the liability protection may be worth having even at lower profit levels. Alternatively, good professional indemnity insurance covers many of the same risks at lower cost and complexity.

Do you need to retain profits in the business? One of the biggest advantages of a limited company is that you can leave money in the company, taxed at the lower Corporation Tax rate, and draw it down in future years when it suits you. If you extract everything you earn each year, this advantage disappears.

Can you absorb the extra admin? If the thought of additional filing deadlines, Companies House accounts, and accountant fees adds genuine stress or cost to your situation, that’s a real factor — not an excuse.

Are you thinking long-term? If you plan to take on employees, bring in investors, or sell the business eventually, a limited company structure makes that significantly easier.

The Honest Advice

Start as a sole trader unless you have a specific reason not to. It’s simpler, cheaper to run, easier to understand, and for most people at the early stages of self-employment, the tax difference is minimal.

Revisit the question when your profits consistently exceed £40,000–£50,000, when liability becomes a real concern, or when your business starts to look like it’s scaling. At that point, get a proper accountant to model the numbers for your specific situation — not a generic comparison from the internet.

Going from sole trader to limited company is straightforward when the time is right. Going the other direction is significantly more complicated. Starting simple gives you options.

Whether you’re a sole trader or a limited company director, The Self Employed Club has handpicked deals on the tools you need — accounting software, business banking, insurance, and more. Free to join. Browse the deals →

FAQs

Is it better to be a sole trader or a limited company?

It depends on your profit level, risk exposure, and growth plans. For most people starting out or earning under £40,000–£50,000 profit, sole trader is simpler and often just as tax-efficient once admin costs are factored in. Above that level it’s worth getting professional advice on your specific numbers.

When does it make financial sense to incorporate?

Generally when profits consistently exceed £50,000–£60,000, when you can retain profits in the company rather than drawing everything personally, and when the tax saving exceeds the additional accountancy and admin costs. The exact breakeven varies by individual.

Does a limited company protect my personal assets?

Partially — but less completely than many people assume. Banks routinely require personal guarantees, and HMRC can pursue directors personally in cases of fraud, wrongful trading, or excessive drawings. Good professional indemnity insurance often covers similar risks with less admin burden.

Do I need an accountant if I have a limited company?

Almost certainly yes. The filing requirements — Companies House accounts, CT600, Confirmation Statement, director’s Self Assessment — are significantly more complex than a sole trader return, and the penalties for getting them wrong are meaningful.

Can I switch from sole trader to limited company later?

Yes — and it’s relatively straightforward. Many people start as sole traders and incorporate when their circumstances make it worthwhile. The reverse is more complex, so starting simple is generally the lower-risk approach.

Is a limited company more tax-efficient?

It can be, at higher profit levels. But the Corporation Tax increase in 2023 and the reduction of the dividend allowance to £500 have narrowed the advantage significantly. Don’t assume incorporation automatically saves tax — model the actual numbers for your situation.

What’s the cheapest way to run a limited company?

You’ll typically need accounting software and an accountant — budget at least £500–£2,000/year for the latter. The Self Employed Club has deals on accounting software including Xero. Browse deals →

About the Author

Join the Club — it's completely free

Members get handpicked deals and discounts on the tools, services and everyday essentials UK sole traders actually use. Free to join, no catch.

Join for Free How it Works