Sole Trader vs Limited Company — Which Is Right for Your UK Business in 2026?

The fundamental difference

As a sole trader, you and your business are legally the same entity. Your business profits are your personal income. You pay income tax and National Insurance through Self Assessment.

As a director/shareholder of a limited company, the company is a separate legal entity. The company pays Corporation Tax on its profits. You pay yourself a salary (subject to PAYE) and dividends. Your personal liability for company debts is generally limited to what you have invested.

Tax rates in 2026

Sole trader:

• Income tax: 20% on profits above the Personal Allowance (£12,570), 40% above £50,270
• Class 4 NIC: 6% between £12,570 and £50,270, 2% above

Limited company (small profits — under £50,000):

• Corporation Tax: 19% (small profits rate)
• Between £50,000 and £250,000: tapered relief applies (effective rate rising to 25%)
• Dividend tax: 8.75% (basic rate), 33.75% (higher rate)
• Director salary up to Personal Allowance: no income tax

When a limited company genuinely saves tax

The classic salary + dividend strategy works like this for a director earning £60,000:

1. Pay yourself a salary of £12,570 (using the Personal Allowance tax-free)
2. Take the remaining £47,430 as dividends
3. Pay Corporation Tax at 19% on company profits
4. Pay dividend tax at 8.75% on the first £37,700 of dividends (after the £500 dividend allowance)

Compared to taking the same amount as a sole trader:

• Sole trader total tax (income tax + NIC): approximately £15,800
• Limited company total tax (Corporation Tax + dividend tax + NIC on salary): approximately £12,500

The saving of approximately £3,300 needs to be weighed against:

• Accountant fees for company accounts and CT returns (typically £800-£1,500/year more than sole trader)
• Companies House filing requirements
• The loss of privacy (accounts are public at Companies House)
• Pension contributions and other planning that may achieve similar savings as a sole trader

At £60,000 profit, the net saving after additional accountancy costs is roughly £1,500-£2,500 per year.

When sole trader is better

Below £30,000 profit: The additional administration and accountancy costs of a limited company often exceed the tax saving at this level. The complexity is not worth it.

Irregular or short-term self-employment: If you are freelancing temporarily, the setup cost and ongoing obligations of a company are not justified.

High likelihood of losses: As discussed, sole trader accounting gives more flexible loss relief — you can offset losses against other income in the same tax year.

Simplicity is a priority: Sole trader bookkeeping is genuinely simpler. One bank account, one Self Assessment return, no annual accounts filing, no Companies House obligations.

When incorporation makes sense

• Consistent profits above £40,000-£50,000 where the tax saving justifies the complexity
• Clients require you to work through a limited company (common in tech contracting)
• You want to retain profits in the company for future investment rather than drawing them all personally
• You want limited liability protection for genuine business risk
• You are planning to bring in investors or sell the business

The 2026 reality check

The gap between sole trader and limited company tax has narrowed in recent years. The increase in Corporation Tax to 25% for companies with profits above £250,000, the reduction in the dividend allowance to £500, and the higher dividend tax rates all reduce the advantage of incorporation.

Before incorporating, model the numbers with a bookkeeper or accountant using your specific profit level and personal circumstances. A general rule of thumb ("always incorporate above £30,000") is not sufficient — the answer depends on your full financial picture.