Tax considerations for small business owners: Sole traders vs limited companies 

Navigating the complex landscape of taxation is a fundamental responsibility of all business owners.  

When it comes to small businesses in the UK, there are predominantly two categories to consider: sole traders and limited companies.  

Sole Traders  

Income Tax  

As a sole trader, your business income is regarded as your personal income.  

You are required to pay Income Tax through Self-Assessment. The Income Tax rates for the 2023/24 tax year are as follows: 

• Personal Allowance: Up to £12,570 – 0 per cent tax  
• Basic rate: £12,571 to £50,270 – 20 per cent tax 
• Higher rate: £50,271 to £125,140 – 40 per cent 

• Additional rate: Over £125,140 – 45 per cent  

National Insurance  

Sole traders are also required to pay Class 2 and Class 4 National Insurance Contributions (NICs).  

• Class 2 NICs are paid at a flat weekly rate of £3.45. 
• Class 4 NICs are calculated as a percentage of your profits. Nine per cent on profits between £12,750 and £50,270 and 2 per cent on profits over £50,270.  

Limited Companies  

Corporation Tax  

Limited companies are subject to Corporation Tax on their profits.  

The amount of Corporation Tax your company is liable for is contingent on its taxable profits. 

A 19 per cent rate is applied if your company’s profits are no more than £50,000. 

Profits equalling or exceeding £250,000 incur a 25 per cent tax rate.  

For profits that fall between £50,000 and £250,000, a graduated scale ranging from 19 to 25 per cent is used to determine the Corporation Tax Rate.  

Dividend Tax  

If you are a director of a limited company, you might choose to take out a part of the profits as dividends.  

Dividends have their own tax bands, which are separate from Income Tax bands. 

Salaries and National Insurance 

Directors who are also employees of the company will have to pay Income Tax and National Insurance on their salaries.  

The company will also have to make employer National Insurance contributions.  

Pros and Cons  

Sole traders  

Advantages  

• Simple to set up and operate as a sole trader  
• Sole traders have complete control over their business decisions  
• Sole traders are not required to publicly disclose their financial information  
• Lower administrative burden  

Disadvantages 

• Sole traders are personally liable for any debts or losses their business incurs 
• Limited funding options  
• Potential credibility issues which could affect the clients you want to attract to your business  

Limited companies  

Advantages  

• Limited liability, protecting personal assets and limiting debt liability 
• Potentially lower tax rates and benefits from dividends  
• Offers credibility and protects the company name  
• Easier to raise funds through various avenues and finance  

Disadvantages 

• Strict and complex regulatory requirements and increased potential for penalties  
• Increased paperwork and administrative tasks  
• Restrictions on cash flow and dividend distribution due to Corporation Tax  

Understanding the nuanced tax implications of operating as a sole trader versus a limited company can significantly influence your business’s financial health.  

No matter what your choice is, it is always recommended to consult with an accountant to understand the intricate details and ensure that you are meeting all regulatory requirements.  

For more advice on what business structure is best for your small business, get in touch today.