Sole Trader vs Limited Company in 2026/27: Why the Old Tax Advice No Longer Works

For a long time, business owners have heard the same advice, “Once profits reach a certain level, switching from sole trader to limited company is automatically more tax-efficient” 

However, in the year 2026/27, this rule of thumb is not reliable. The gap between sole trader and limited company structure is dependent on Corporation Tax, Dividend Tax, National insurance, and how much stays in the business. 

This guide is a practical comparison, not a one-size-fits-all answer. 

Sole Trader vs Limited Company: What Is the Main Difference?

The core difference between sole trader Vs Limited company is legal status. 

Sole trader

• You and the business are legally the same.
• Profits are taxed as your personal income.
• Income Tax and National Insurance may apply.
• Administration is generally simpler.

Limited company

• The company is a separate legal entity.
• It pays Corporation Tax on its profits.
• You can then take money out as salary, dividends or other methods.
• Reporting and compliance requirements are greater.

We discuss the Tax details below. In the meantime, memorise one point: A sole trader is taxed once whereas a company owner may be taxed at two levels. 

For a closer look at the benefits and responsibilities of incorporation, read our guide to the advantages and disadvantages of setting up a limited company

Why the Old “Incorporate at X Profit” Advice No Longer Works

Previously, incorporating a certain profit level gave a clearer tax advantage. In 2026/27, the sum is more complex. The results are dependent on: 

• Corporation Tax rates
• Dividend tax rates
• Employer National Insurance
• Salary levels
• The dividend allowance
• Personal Allowance restrictions at higher incomes
• Whether profit is withdrawn or retained
• Accountancy and compliance costs

For example, take two business owners with the same annual profit. One needs every single pound for living costs whereas the other can leave half in the company. So, their outcomes can be widely different. 

How Sole Traders Are Taxed in 2026/27

A Sole trader is obligated to pay Income Tax on taxable profit, not turnover and allowable business expenses tend to reduce that profit. 

For the year 2026/27, the standard personal allowance is £12,570. The income above this is taxed at the following rates: 

• Basic rate: 20% on income from £12,571 to £50,270.
• Higher rate: 40% from £50,271 to £125,140.
• Additional rate: 45% above £125,140.

Your personal allowance reduces gradually once your income reaches above  £100,000, falling by £1 for every £2 you earn over this amount. You are not eligible for Personal Allowance once your income reaches £125,140. 

How Limited Company Owners Are Taxed in 2026/27

Company taxation happens in stages:

• Stage 1: The company pays Corporation Tax on taxable profits. On profits up to £50,000, the rate is 19% and 25% above £250,000. If your profit falls between these two thresholds, you may be able to claim Marginal Relief which in turn reduces the amount of corporation tax you pay. 
• Stage 2: A director may take a salary from the company. However, the company is required to pay Employer National Insurance at 15% on any salary that is above  £5,000 a year. Employment Allowance can help reduce this cost up to £10,500. However, there is an exception. If the director is the only individual earning above this threshold, the company can not claim it. 
• Stage 3: Once salary has been paid, the company can distribute any profits between its shareholders as dividends. These dividends are subject to Personal Tax which is dependent on the shareholder’s income. The Dividend Allowance is only £500. 

What really matters is how much tax you pay both on your company’s profits and when you take money for yourself. Corporation Tax alone does not give you the full picture. 

Why Dividend Tax Matters More in 2026/27

Dividend tax rates have increased by 2 percentage points from 6 April 2026. This has reduced some of the tax benefits of running a limited company less attractive. 

The rates above the  £500 dividend allowance are as follows: 

• Basic rate: 10.75%
• Higher rate: 35.75%
• Additional rate: 39.35% (unchanged)

This  £500 dividend allowance is small so more of your Dividend Income is taxable. Keeping in mind that dividends are paid from company profits that have already been taxed. As an owner, if you need to withdraw most of your profits from the company, incorporating may not leave as much of a tax advantage as it used to. 

Retaining Profit Can Change the Calculation

When profit does not need to leave the business, a limited company can still offer flexibility. 

If you leave some profit in the company, you do not have to pay personal dividend tax on it until you withdraw it as dividends. The company is still required to pay Corporation Tax but you can keep the remaining money in the business and utilise it for things like purchasing equipment, hiring staff, or funding future growth. 

However, it works differently for sole traders. You are required to pay tax on your business profits of the year, even if you keep the money in the business. If you need to withdraw most of your profits to cover your living expenses, operating as a limited company may not offer as much of a tax advantage. How much profit you make is not the only thing that matters, but also how much you need to take out of the business. 

What About Admin and Accountancy Costs?

When deciding between sole trading or limited company, tax is not the only thing to consider. The amount of paperwork and admin involved needs to be considered as well. 

Operating as a Limited company usually means dealing with the following: 

• Annual accounts
• A Company Tax Return, even if no tax is due
• Companies House filings, including a confirmation statement at least every 12 months
• Payroll, where a salary is paid
• Dividend records
• Director responsibilities

All of this increases the accountancy fees and compliance costs, which can offset a small tax saving. Sole traders generally have simpler reporting. However, Making Tax Digital for Income Tax is being introduced in stages. It applies to those with qualifying gross income over £50,000 from April 2026, £30,000 from April 2027 and £20,000 from April 2028. It means digital records and quarterly updates.

When Might Staying as a Sole Trader Make Sense?

Operating as a sole trader is suitable when: 

• Profits are relatively modest.
• Most profit needs to be withdrawn personally.
• Simplicity is a priority.
• The business is still being tested.
• Extra company administration would outweigh any benefit.
• There is no strong commercial reason to incorporate.

If you have a small business and prefer to keep things simple, staying as a sole trader is the more practical choice. 

When Might a Limited Company Make Sense?

A limited company makes sense when: 

• Profits are growing.
• Some profit can stay in the company.
• The business is reinvesting for growth.
• There are commercial reasons to operate through a company.
• You want clearer separation between personal and business finances.
• You may bring in employees, investors or extra shareholders.

Ultimately, tax savings are only a part of the decision. You also need to consider what works best for your business in the present and how it grows. 

What Should You Compare Before Deciding?

When choosing between operating as a Sole trader or Limited company it is important to look at the bigger picture.
Here is an easy checklist you can look into to make your decision a little easier: 

• Expected annual profit
• Income you need personally
• Whether profit can stay in the business
• Income Tax
• National Insurance
• Corporation Tax
• Dividend tax
• Employer National Insurance
• Accountancy and compliance costs
• Growth plans
• Risk and liability
• Future plans for the business

Ultimately there is no specific figure that can tell you when to become a Limited company. The correct comparison uses your actual projected numbers. 

Key Takeaway

There is no universal profit level that makes a limited company automatically the better tax choice in 2026/27. The correct structure depends on: 

• Profit 
• Personal withdrawals 
• Tax rates 
• Retained earnings 
• Administration costs 
• Wider business plans 

You must compare your own figures instead of relying on the outdated rule of thumb method. 

Not sure whether staying as a sole trader or switching to a limited company is right for you? Speak to our team for a comparison based on your actual profits, personal income needs and business plans, so you can choose the structure that makes the most sense for 2026/27.