Sole Trader vs Limited Company (UK 2026/27)

Is a Limited Company Always More Tax Efficient?

One of the biggest myths in business is that a limited company always saves tax.

It doesn’t.

In fact, for many business owners who withdraw all of their profits each year, remaining a sole trader can actually leave them better off.

So why do so many businesses incorporate?

The answer is that tax is only one part of the decision.

Limited companies offer advantages such as limited liability, a more professional image and greater flexibility if profits are retained within the business.

This guide explains the differences in plain English so you can decide which structure is right for you.

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What Is a Sole Trader?

A sole trader is an individual who runs a business in their own name or under a trading name.

Legally, you and the business are the same person.

You keep all of the profits after tax, but you are personally responsible for any debts the business cannot pay.

Many businesses start this way because it’s simple, inexpensive and involves less administration.

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What Is a Limited Company?

A limited company is a separate legal entity.

The company owns the business, enters into contracts and pays Corporation Tax on its profits.

You normally own the company through shares and manage it as a director.

The company structure offers limited liability (subject to certain exceptions), but it also comes with additional legal responsibilities such as filing annual accounts and Companies House returns.

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How Are Sole Traders Taxed?

As a sole trader, all business profits belong to you personally.

You pay Income Tax and National Insurance on those profits, whether you spend the money or leave it in the business bank account.

There is no separation between you and the business.

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How Are Limited Companies Taxed?

A limited company pays Corporation Tax on its taxable profits.

If you want to take money out of the company personally, you normally do so through a combination of salary and dividends.

Those dividends are taxed personally.

This means there are effectively two layers of tax:

• Corporation Tax paid by the company.

• Personal tax when profits are extracted.

If every available pound is withdrawn, the combined tax burden can sometimes exceed that of a sole trader.

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Example 1 – Annual Profit of £50,000

Let’s assume:

• Business profit of £50,000

• One owner

• No employees

• No other income

• All available profits withdrawn personally

Sole Trader

The owner pays Income Tax and National Insurance on the £50,000 profit.

Limited Company

The company pays Corporation Tax.

The remaining profits are then extracted using a tax-efficient salary and dividend strategy.

Which Pays Less Tax?

Under these assumptions, the sole trader is likely to pay less overall tax.

The difference isn’t enormous, but it demonstrates an important point:

A limited company does not automatically save tax simply because you’ve incorporated.

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Example 2 – Annual Profit of £100,000

Now let’s assume annual profits increase to £100,000.

Again we’ll assume:

• One owner.

• No other income.

• No employees 

• All available profits are withdrawn.

Sole Trader

The owner pays Income Tax and National Insurance on the £100,000 profit.

Limited Company

The company first pays Corporation Tax.

The remaining profits are then withdrawn through salary and dividends.

Which Pays Less Tax?

Many people expect the limited company to win.

However, where all profits are extracted, the sole trader can actually be better off overall.

That’s because:

• the company pays Corporation Tax,

• dividends are then taxed personally,

• and Employer’s National Insurance may also arise.

This often surprises business owners who have been told that “everyone should have a limited company.”

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So Why Do People Incorporate?

If sole traders can sometimes pay less tax, why do so many businesses choose a limited company?

Because tax is only one factor.

A limited company may still be the better choice if you:

• Want the protection of limited liability.

• Have employees

• Need a more professional image.

• Intend to bring in business partners or investors.

• Plan to sell the business in the future.

• Want to retain profits within the company to fund growth.

• Make employer pension contributions.

• Don’t need to withdraw all of the profits each year.

This final point is particularly important.

If profits remain within the company rather than being extracted immediately, the company structure often becomes far more attractive from a tax perspective.

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Limited Liability

One of the biggest advantages of a limited company is limited liability.

A sole trader is personally responsible for business debts.

A limited company creates a legal separation between the business and its owners.

Although directors still have legal responsibilities—and lenders often require personal guarantees—the additional protection is valuable for many businesses.

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Administration

Running a limited company involves more administration.

A sole trader generally needs:

• Bookkeeping.

• A Self Assessment tax return.

• Good business records.

A limited company must also deal with:

• Annual accounts.

• Corporation Tax returns.

• Companies House filings.

• Confirmation Statements.

• Directors’ statutory responsibilities.

Modern accounting software has made these obligations much easier to manage.

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Common Myths

“A Limited Company Always Saves Tax”

False.

It depends on:

• your profit level,

• how much money you withdraw,

• Whether you have other employees

• whether profits are retained,

• pension planning,

• and your personal circumstances.

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“Every Accountant Recommends Incorporating”

They shouldn’t.

The correct advice is to compare both options using your own figures.

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“A Sole Trader Can’t Build a Big Business”

Completely false.

Many highly successful businesses remain sole traders for years before incorporating.

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Which Structure Is Right For You?

There isn’t a single answer.

We normally consider:

• Your expected profits.

• How much income you need personally.

• Whether profits will be retained.

• Your future growth plans.

• Business risk.

• Pension planning.

• Succession planning.

• The overall tax position.

Sometimes remaining a sole trader is the best decision.

Sometimes incorporating is the better commercial choice—even if it doesn’t reduce your tax bill immediately.

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Our Advice

Don’t incorporate because someone tells you “it saves tax.”

Equally, don’t remain a sole trader simply because it’s easier.

The right answer comes from comparing the numbers and considering your long-term business goals.

At Paul Marks & Co, we’ll prepare a personalised comparison using your own figures and explain the advantages and disadvantages of each structure in plain English.

That way, you can choose the structure that’s genuinely right for your business—not the one based on myths or outdated advice.

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Frequently Asked Questions

Is a limited company always more tax efficient?

No. If you withdraw all of your profits each year, a sole trader can sometimes pay less overall tax.

When does a limited company become more attractive?

Often when profits can be retained within the company, employer pension contributions are made, or there are commercial reasons such as limited liability or future succession planning.

Can I incorporate later?

Yes. Many businesses begin as sole traders and incorporate as they grow.

How do I know which is right for me?

The only reliable way is to compare both options using your own figures and circumstances.