Limited company or sole trader in 2025/26: which is more tax-efficient for you?

It is one of the most common questions we hear from contractors, consultants, and freelancers starting out — or reviewing their setup after a few years of trading. Should you be a sole trader or a limited company?

The honest answer is: it depends on your income level, your circumstances, and what you plan to do with the money. But the maths has shifted in recent years, and what was clearly the right answer for many people five years ago is worth revisiting now.

This article runs through the key differences, the numbers for 2025/26, and the factors that matter beyond tax.

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 on everything you earn above the personal allowance, regardless of how much you actually draw from the business.

As a limited company, your business is a separate legal entity. The company pays Corporation Tax on its profits. You, as director, choose how to extract money from the company — typically a combination of salary and dividends — and you only pay personal tax on what you actually take out.

That flexibility is the core tax advantage of the limited company structure.

The tax rates in 2025/26

Sole trader:

• Personal allowance: £12,570 (no tax)
• Basic rate: 20% on income £12,571–£50,270
• Higher rate: 40% on income £50,271–£125,140
• Additional rate: 45% on income above £125,140
• Class 4 NICs: 9% on profits £12,570–£50,270, then 2%
• Class 2 NICs: £3.45 per week (if profits above £12,570)

Limited company:

• Corporation Tax: 19% on profits up to £50,000 (small profits rate); 25% on profits above £250,000; marginal relief between the two thresholds
• Dividend allowance: £500 (reduced from £1,000 in 2023/24 and £2,000 before that)
• Dividend tax rates: 8.75% basic rate, 33.75% higher rate, 39.35% additional rate

Running the numbers: a realistic comparison

Let us take a typical example — a freelance consultant billing £80,000 per year with £5,000 in allowable business expenses. Profit is therefore £75,000.

As a sole trader

Taxable income: £75,000

• Personal allowance: £12,570 — no tax
• Basic rate band: £37,700 at 20% = £7,540
• Higher rate: £24,730 at 40% = £9,892
• Class 4 NICs: £3,337 (at 9%) + £492 (at 2%) = £3,829
• Class 2 NICs: £179

Total tax and NICs: approximately £21,440

Take-home: approximately £53,560

As a limited company (optimal extraction)

The standard approach for a limited company director is to pay yourself a salary at the National Insurance primary threshold (£12,570) and take the rest as dividends.

• Salary: £12,570 — no Income Tax, no employee NICs (small salary, employer NICs above secondary threshold but let us keep this simple)
• Remaining profit after salary and Corporation Tax:
  • Profit before salary: £75,000
  • Less salary: £12,570
  • Company profit: £62,430
  • Corporation Tax at 19% (small profits rate): £11,861
  • Profit after CT: £50,569
• Dividends drawn: £50,569
  • Dividend allowance: £500 — tax free
  • Remaining £50,069 — £37,700 at basic rate 8.75% = £3,299; £12,369 at higher rate 33.75% = £4,175
  • Total dividend tax: £7,474

Total tax (CT + personal): approximately £19,335

Take-home: approximately £55,665

The saving

On £75,000 profit, operating as a limited company saves approximately £2,100 per year in this scenario.

At lower income levels — say £40,000 profit — the saving narrows considerably and can disappear entirely when you factor in the additional accounting costs of running a company.

At higher income levels — £100,000 and above — the saving grows, though the personal allowance taper (which removes £1 of allowance for every £2 earned above £100,000) complicates things for both structures.

The break-even point

As a rough guide, the limited company structure tends to become financially worthwhile when your profit is consistently above £35,000–£40,000 per year, assuming you are not drawing everything out immediately and the additional accountancy costs are factored in.

Below that level, the tax saving is modest and the administrative overhead — company accounts, Corporation Tax return, Companies House filings, payroll — may not be worth it.

What the numbers do not capture

Tax efficiency is only one part of the decision. There are several non-tax factors that matter:

Limited liability. As a sole trader, you are personally liable for all business debts. As a director and shareholder of a limited company, your personal liability is limited to the share capital you have invested (usually £1). If your work carries any contractual or professional risk, this matters.

IR35. If you work through a limited company but operate in a way that looks like employment — one main client, working under their direction, using their equipment — you may be caught by IR35 (off-payroll working rules). In that case, the tax benefits of the company structure are eliminated. This is a significant consideration for contractors in the public sector or large private sector businesses.

Perception. Some clients prefer to engage limited companies rather than sole traders. For certain contracts — particularly in professional services or with larger organisations — having a company can open doors.

Future planning. A limited company allows you to retain profits in the business, invest them, and draw them down at a later date (potentially in a lower tax year, or in retirement). This flexibility is valuable if you do not need all your income now.

Administration. A limited company requires annual accounts filed with Companies House, a Corporation Tax return, a confirmation statement, and — if you pay yourself — payroll and Real Time Information (RTI) submissions. This is manageable but meaningfully more work than sole trader Self Assessment.

Which is right for you?

The answer depends on:

• Your current and projected profit level
• Whether you are caught by IR35
• How much of your income you need to draw immediately
• Your appetite for administrative complexity
• Whether limited liability matters in your sector

There is no universal right answer. What we would caution against is making the decision based on headline tax rates alone, or assuming that what worked for a colleague in a different situation will work for you.

If you are unsure which structure is right for your circumstances, book a free consultation and we will work through the numbers with you — including any IR35 considerations and the total cost of each option.