Sole Trader vs Limited Company: Which Is Better for Tax? (2026/27)

Choosing between sole trader and limited company is one of the most common decisions UK freelancers and business owners face — and the answer almost always comes down to how much profit you make. At lower profits the simplicity of self-employment wins, but once you consistently earn above £40,000–£50,000, the tax savings from incorporating become hard to ignore. This guide shows you exactly where the tipping point falls for 26-27 and lets you compare both structures at your profit level.

The key question isn't “which is better?” in the abstract — it's “which is better at my profit level, once I factor in the extra admin costs?” We'll answer that with live calculations below.

Compare your tax at different profit levels

Use the slider below to see how much you'd pay as a sole trader versus a limited company at your profit level. The limited company calculation assumes optimal extraction: a director salary of £12,579 plus the remainder as dividends after Corporation Tax.

Sole trader vs limited company tax comparison table

The table below shows pre-computed tax bills at common profit levels. All figures assume the optimal salary/dividend split for the limited company route and do not include accounting fees.

Figures computed from 26-27 tax rates. Assumes optimal salary/dividend split for Ltd. Does not include accounting fees or employer NI considerations.

How sole traders are taxed

As a sole trader, your business profit is treated as personal income. There is no separation between you and the business — HMRC taxes the full profit through Self-Assessment. This means you pay income tax at your marginal rate (20%/40%/45%) plus self-employed National Insurance. The simplicity is the main advantage: no company accounts, no Corporation Tax return, no Companies House filings.

The taxes a sole trader pays:

• Income tax at your marginal rate — 20% on profits between £12,579 and £50,270, 40% above that
• Class 2 NI: £3.45/week (flat rate, if profits exceed £6,725)^[2]
• Class 4 NI: 6% on profits between £12,570 and £50,270, then 2% above^[2]

The effective tax rate for a sole trader earning £60,000works out to approximately 23% — significantly higher than the limited company equivalent. However, the administrative burden is minimal: a single Self-Assessment return, simple bookkeeping, and no requirement to file public accounts.

How limited company directors are taxed

A limited company is a separate legal entity. The company pays Corporation Tax on its profits, and you extract money through a combination of salary and dividends. The optimal strategy for most small company directors is to take a salary at the Personal Allowance level (£12,579) — just below the NI threshold — and extract remaining profits as dividends.^[1]

• Corporation Tax: 19% on profits up to £50,000, 25% above £250,000^[3]
• Director salary (£12,579): no income tax (within Personal Allowance), no NI (below threshold), deductible against Corporation Tax
• Dividends taxed at: 8.75% (basic rate) / 33.75% (higher rate) / 39.35% (additional rate) — with a £500 tax-free allowance^[4]

The advantage: a combined effective rate that's meaningfully lower than self-employment for profits above £40K–£50K. The disadvantage: administrative burden including annual accounts, confirmation statements, Corporation Tax returns, and accounting fees (typically £1,000–£2,500/year). You also need to consider IR35 if you work with clients who could be classified as employers.

For a deeper look at structuring your director's pay, see our director's salary vs dividends guide.

When should you incorporate?

The general tipping point is around £40,000–£50,000 of annual profit. Below this, the tax saving from a limited company is marginal and may be entirely offset by the additional accounting fees, filing requirements, and administrative burden. Above this, the savings become increasingly significant — growing to thousands of pounds per year at higher profit levels.

The maths behind the tipping point: as a sole trader earning above £50,270, you pay 40% income tax plus 6% Class 4 NI = 46% marginal rate. In a limited company, the same profit is taxed at 19% Corporation Tax first, then the remaining amount is taxed as dividends at 8.75% — a combined effective rate significantly lower than 46%.

Other reasons to incorporate beyond tax savings:

• Limited liability: your personal assets are protected if the business fails
• Credibility: some larger clients prefer to work with limited companies
• Pension contributions: employer contributions are a deductible expense with no NI
• Flexibility: retain profits in the company to smooth income across years

When to stay as a sole trader

Incorporation isn't always the right choice, even if the numbers suggest a saving. Several situations favour staying as a sole trader, particularly if you value simplicity or your circumstances are likely to change.

• Profits under £40,000: the tax saving is small and may not cover accounting fees
• You value simplicity: no company accounts, no confirmation statements, no double-entry bookkeeping requirement
• You want to use losses flexibly: sole trader losses can be offset against other income or carried back — company losses are more restricted
• You plan to wind down soon: closing a company has tax implications (striking off vs Members' Voluntary Liquidation)
• IR35 concerns: if your working arrangements look like employment, HMRC may challenge the structure

For more on the self-employed tax position, see our self-employed tax guide and the freelancer vs employee comparison.

Calculate your exact position

The interactive widget above gives you a quick estimate, but for a detailed breakdown including different salary levels, pension contributions, and student loan interactions, use our dedicated calculator:

• Sole Trader vs Limited Company Calculator — enter your exact profit and see the full comparison with all components broken down
• Dividend Tax Calculator — model different salary/dividend splits to find your optimal extraction strategy
• Income Tax Calculator at £60,000 — see what you'd pay as a sole trader (profit treated as salary)

Sources

1. HMRC — Income Tax rates and Personal Allowances. Personal Allowance £12,579, basic rate 20%, higher rate 40%, additional rate 45%. Accessed July 2026.
2. HMRC — Self-employed National Insurance rates. Class 2: £3.45/week. Class 4: 6% between £12,570 and £50,270, 2% above. Accessed July 2026.
3. HMRC — Corporation Tax rates. Small profits rate 19%, main rate 25%. Accessed July 2026.
4. HMRC — Tax on dividends. Dividend allowance £500. Basic rate 8.75%, higher rate 33.75%, additional rate 39.35%. Accessed July 2026.