UK Freelancer Financial Guide 2025 — Sole Trader vs Ltd

Sole trader — one layer of tax

As a sole trader, your business profit is your income — taxed directly through Self Assessment under the ordinary Income Tax bands, with no separate company-level tax to consider first.

National Insurance: Class 4 applies at 6% on profits between £12,570 and £50,270, and 2% above £50,270 — payable alongside Income Tax through Self Assessment. Class 2 contributions stopped being mandatory from 6 April 2024 for anyone with profits above the small profits threshold (£6,845) — you get National Insurance credits automatically instead, without paying. Below that threshold, voluntary Class 2 payments (£3.50 a week for 2025/26) remain available for anyone who wants to protect their State Pension record despite low profits.

Limited company — two layers of tax

A limited company pays Corporation Tax on its own profits first: 19% up to £50,000, 25% above £250,000, with marginal relief tapering the effective rate between those two points. Only after Corporation Tax is paid does money reach the director-shareholder personally — typically as a small salary (often set around the NI threshold to minimise personal NI while still counting towards State Pension entitlement) plus dividends from what remains.

Dividend tax for 2026/27 — a rate that rose by two percentage points from 6 April 2026 — is 10.75% in the basic rate band, 35.75% in the higher rate band, and 39.35% at the additional rate, after a £500 tax-free dividend allowance.

Where the break-even point tends to sit

Because a limited company adds Corporation Tax as a first layer and then dividend tax as a second, the tax advantage of incorporating narrows as personal-tax and dividend rates rise, and as the dividend allowance shrinks (from a past £2,000 or £5,000 down to today's £500). Reported break-even points for a typical sole-director company cluster somewhere between roughly £30,000 and £50,000–£60,000 of annual profit, above which the company structure typically starts to save tax overall — but the exact crossover depends heavily on your specific salary/dividend split, so a single universal number should be treated as a rough starting point, not a rule.

Worked example — profit of £45,000

As a sole trader: Income Tax and Class 4 NI apply to the full £45,000 profit under the ordinary bands and NI rates described above, with no separate company-level tax step.

As a limited company, paying a small salary of £12,570 (at the NI threshold, so no employee or employer NI on it) and taking the rest as dividends:

• Company profit after the £12,570 salary: £45,000 − £12,570 = £32,430
• Corporation Tax at 19% (well under the £50,000 full-rate threshold): £32,430 × 19% = £6,161.70
• Available for dividends after Corporation Tax: £32,430 − £6,161.70 = £26,268.30
• After the £500 dividend allowance, most of the remaining dividend sits in the basic-rate band at 10.75%: (£26,268.30 − £500) × 10.75% = £25,768.30 × 10.75% ≈ £2,770.09 of dividend tax

The two structures are not directly comparable without also weighing accountancy costs, administrative burden, and non-tax factors like limited liability — the arithmetic above is illustrative of the mechanism, not a verdict on which structure wins for every freelancer at this exact profit level.

FAQ

Q: Do I still need to pay Class 2 National Insurance as a sole trader? A: Not if your profits are above the small profits threshold (£6,845) — Class 2 stopped being mandatory from 6 April 2024, and you get NI credits automatically instead. Below the threshold, voluntary Class 2 payments remain available.

Q: Has the dividend tax rate actually changed recently? A: Yes — the basic and higher dividend rates each rose by two percentage points from 6 April 2026 (8.75%→10.75% and 33.75%→35.75%); the additional rate stayed at 39.35%.

Q: Is a limited company always better for tax once I'm earning enough? A: Generally the tax advantage grows with profit, but the specific break-even point depends on your own salary/dividend split, other income, and non-tax factors like limited liability protection and extra accountancy costs — it's a range, not a single threshold that applies identically to everyone.

Sources

Figures verified against HMRC guidance as of 30 July 2026:

• gov.uk — Class 4 National Insurance rates (6% on £12,570–£50,270, 2% above)
• gov.uk / HMRC — Class 2 National Insurance changes from April 2024 (mandatory payment ended above the small profits threshold; voluntary Class 2 remains available below it)
• gov.uk — Corporation Tax rates (19% up to £50,000, 25% above £250,000, marginal relief between)
• HMRC/professional advisory confirmation of the April 2026 dividend rate rise (Evelyn Partners, Deloitte Taxscape, HWB Accountants): 10.75%/35.75%/39.35% dividend rates from 6 April 2026, £500 dividend allowance