Sole trader vs limited company: which saves you tax in 2026/27?

Which is better for tax — sole trader or limited company in 2026/27?

A sole trader pays Income Tax (20% / 40% / 45%) and Class 4 National Insurance (6%) on all business profit, whether or not they take it out. A limited company pays Corporation Tax (19% up to £50,000 of profit, rising to 25% above £250,000), and the director then pays dividend tax (10.75% / 35.75% / 39.35%) on what they extract. Incorporating used to mean a clear tax saving, but corporation tax rises and the April 2026 dividend tax increase have narrowed that gap: as a rough guide, below about £30,000–£50,000 profit a sole trader is usually better off after costs, while above roughly £50,000 a limited company starts to pay — especially if you can retain profit, use pension contributions, or split dividends with a spouse. The right choice depends on your numbers and goals, not a rule of thumb (GOV.UK).

At a glance — the rough crossover by profit band (2026/27)

Profit range	Recommended	Why
Under ~£30,000	Sole trader	Ltd tax advantage minimal; admin not worth it
~£30,000–£50,000	Usually sole trader	Ltd worth it only with spouse splitting or profit retention
~£50,000–£70,000	Break-even zone	Ltd ~£500–£2,000/yr saving on full extraction
~£80,000+	Limited company	Saving grows with profit; pension extraction makes Ltd clearly ahead

Source: rates from GOV.UK — Corporation Tax rates, GOV.UK — Tax on dividends, GOV.UK — self-employed NI. Crossover ranges assume full annual extraction and typical small-business admin costs of £600–£3,000/year; pension and spousal-dividend planning push the company case forward.

This guide is about which structure leaves you better off and why. For the mechanics of actually setting up a company — Companies House registration, ID verification, the £50 incorporation fee — see Verity, our sister formation service. RR handles the ongoing tax; Verity handles the formation. You won’t see them mentioned again on this page.

How each is taxed (the core difference)

Choosing your business structure is one of the first big decisions you make — and one of the few worth revisiting as you grow, because the right answer changes with your profit.

Sole trader — you and the business are the same legal person. You pay Income Tax at 20% / 40% / 45% on profit above the £12,570 personal allowance, plus Class 4 NI at 6% on profits above the threshold (Class 2 NI has been abolished). You are taxed on all profit, in the year it’s earned, whether you spend it or leave it in the business. One Self Assessment return; no separate company tax. Simple — but you’re taxed on everything, and you’re personally liable for business debts (GOV.UK — Income Tax rates; GOV.UK — self-employed NI).
Limited company — a separate legal entity. The company pays Corporation Tax on profit: 19% up to £50,000, marginal relief between £50,000 and £250,000 (an effective ~26.5% on profit in that band), and 25% above £250,000. You then extract money as a small salary plus dividends, paying dividend tax personally at 10.75% / 35.75% / 39.35% above the £500 dividend allowance. More admin — statutory accounts, a CT600, payroll, dividend paperwork — but it offers limited liability, flexibility over when and how you take income, and planning options a sole trader doesn’t have (GOV.UK — Corporation Tax; GOV.UK — Tax on dividends).

The key conceptual difference is timing: a sole trader is taxed on profit; a company director is taxed on extraction. That flexibility is the company’s real structural advantage — and it is why the comparison is never just “which has lower headline rates.” For the side-by-side numbers, see the tax-difference spoke. For post-incorporation extraction (salary vs dividend mix once you are a company), see the Salary vs Dividends pillar.

Why the tax case for incorporating has narrowed (the 2026 reality)

The headline “companies pay less tax” is no longer reliably true on simple extraction. Two changes did it, and a lot of online advice hasn’t caught up:

Corporation tax rosefrom a flat 19% to a 19%–25% range (post-2023). Companies with profits over £50,000 now pay more than they did, and the marginal-relief band between £50,000 and £250,000 carries an effective ~26.5% rate.
Dividend tax rose 2 points in April 2026(to 10.75% / 35.75% / 39.35%), and the dividend allowance is just £500. So extracting profit as dividends costs more than it used to — and the tax-free slice is now almost nominal.
The combined effect: on a straight “take all the profit out each year” comparison, the limited company’s advantage is now much smaller than a decade ago. At lower profits the sole trader often wins once you count the extra accountancy and filing costs (typically £600–£3,000/year).
Where the company still wins clearly: when you can use its structuraladvantages — retaining profit at 19%, employer pension contributions (no NI, corporation-tax-deductible), spousal dividends to use both sets of allowances, and a tax-efficient eventual sale — and for the non-tax benefit of limited liability.

Most online content still parrots the old “incorporate as soon as you’re profitable” rule. Being accurate about the narrowed advantage is the whole point of this guide. The deeper version of this argument lives on the has-the-advantage-shrunk spoke.

The rough crossover (a starting point, not a verdict)

The crossover bands above are starting points for the conversation, not a verdict. For 2026/27, on full annual extraction and with typical admin costs included:

Under ~£30,000 profit — sole trader.Below the higher-rate band, the company’s tax advantages largely disappear, and the cost of running one (accountancy, Companies House filings, payroll, dividend paperwork) isn’t justified by the small tax difference.
~£30,000–£50,000 — usually sole trader.A company is only worth it here if you can use its extras — splitting dividends with a spouse who has unused allowances, or retaining profit at 19% rather than drawing it all.
~£50,000–£70,000 — the break-even zone.Full extraction might save £500–£2,000 a year as a company; pension contributions or spousal dividends push the saving higher. Worth running your real numbers.
~£80,000+ — usually a limited company.The saving grows with profit, and employer pension contributions (no NI, corporation-tax-deductible) make the company route materially more efficient — often several thousand a year plus deferred pension wealth.

The honest takeaway: the “incorporate as soon as you’re profitable” advice is outdated. For 2026/27, the tax-only case often doesn’t stack up until profits are comfortably into five figures — and even then, the structural and non-tax reasons frequently matter more than the headline saving. The full profit-band reasoning lives on the at-what-profit spoke.

Beyond tax: the other factors that decide it

Tax is only part of the structure decision — and increasingly not the deciding part. The factors that often matter more in 2026/27:

Limited liability.A sole trader is personally liable for business debts — your house, savings and car are exposed. A limited company is a separate legal entity, so personal exposure is generally limited to what you put in. For any business with meaningful risk, debt, or contracts, this alone can justify incorporating.
Profit retention. A company can keep profit taxed at just 19% (under £50k) and reinvest or extract later. A sole trader is taxed on all profit immediately, drawn or not.
Pension efficiency.Employer pension contributions from a company avoid NI and reduce corporation tax — materially more efficient than a sole trader’s personal contributions.
Selling or exiting. A limited company can be sold as an entity, often more tax-efficiently (Business Asset Disposal Relief on qualifying gains), whereas selling a sole trade is selling its assets piecemeal.
Credibility and admin tolerance.Some clients, tenders and lenders prefer dealing with a limited company. The trade-off is more admin and public filings. For a simple, low-risk operation, the sole trader’s privacy and simplicity have real value.

The fuller version of this discussion lives on the beyond-tax spoke.

What about MTD and VAT?

Two cross-cutting points that apply to both structures and often come up alongside the structure decision:

VAT — same £90,000 threshold.The VAT registration threshold is a turnover test, not a structure test. If your taxable turnover exceeds £90,000 in any rolling 12 months, or you expect it to in the next 30 days, you must register regardless of whether you trade as a sole trader or a limited company. If you incorporate later, the new company is a new legal entity for VAT purposes — registration transfers across at incorporation rather than carrying over automatically.
MTD for Income Tax — affects sole traders, not companies. Making Tax Digital for Income Tax begins to apply to sole traders and landlords from April 2026 (for the higher-income tier) and phases in further from 2027/2028. Limited companies are not in MTD-IT — they file the CT600 instead. So the MTD-IT regime is something the sole trader route brings with it, and a factor in the “how much admin do I want” side of the decision. See the MTD for Income Tax pillar for the detail. Sole traders also still file the annual Self Assessment return.

How to actually decide

The right structure depends on five things, and they interact — which is exactly why a rule of thumb gets it wrong as often as it gets it right:

Profit level — the tax crossover (the table above).
Risk and liability — meaningful business risk, debt, or contracts? Limited liability pushes toward a company regardless of the tax line.
Retention — will you reinvest or leave profit in the business? The 19% retention rate is a real advantage a sole trader can’t access.
Pension and family situation — planning big pension contributions, or have a spouse with unused allowances? Both favour a company.
Exit — might you sell or pass on the business? A company is usually the more tax-efficient vehicle to sell.

The simplest first pass is to compare extraction routes on your actual profit using the Salary vs Dividend Optimiser — it models 2026/27 sole-trade tax against the limited-company salary + dividend route on the same profit number. From there, the structural questions (liability, retention, pensions, exit) are the conversation a good accountant adds. The decision framework lives in full on the which-is-right spoke, and the tax side of actually moving (incorporation relief, timing, VAT) is on the switching spoke.

The full business structure series

Six companion guides that go deeper than the pillar — the tax-only comparison, the profit crossover, the shrinking-advantage argument, the non-tax factors, the switch mechanics, and the decision framework.

Sole trader vs limited company: the tax difference explained

The two systems side by side — Income Tax + Class 4 NI on profit versus Corporation Tax + dividend tax on extraction. Why a sole trader is taxed on profit and a director on extraction, and what that really changes.

At what profit should I become a limited company?

The 2026/27 crossover bands explained — under £30k, £30–50k, £50–70k, £80k+ — and the £600–£3,000/year admin cost that sets the floor below which incorporating doesn't pay.

Has the tax advantage of a limited company shrunk?

The contrarian wedge. What two rate changes have done to the simple comparison, why the company's edge now comes from structural extras (retention, pensions, spouse, exit) rather than headline rates.

Beyond tax: liability, credibility, pensions and selling

The non-tax decision factors that often matter more than the tax line in 2026/27 — limited liability, credibility with clients/lenders, profit retention, employer pensions, and selling the business later.

Switching from sole trader to limited company (the tax side)

Incorporation relief on goodwill, timing the change (year-end vs mid-year), VAT registration on the new entity, and how your tax world changes from profit-taxed to extraction-taxed. Formation mechanics live with Verity.

Which is right for you — and how RR advises

The five-factor framework (profit, liability, retention, pensions/family, exit) and why this is genuinely an accountant decision that should be revisited as your business grows.

Frequently asked questions

Should I be a sole trader or a limited company in 2026/27?

It depends on your profit, your appetite for admin, and whether you need limited liability. As a rough 2026/27 guide: below about £30,000 profit, stay a sole trader — the tax difference is too small to justify a company's extra costs. Between £30,000 and £50,000, a sole trader is usually still better unless you can split dividends with a spouse or retain profit in the company. From around £50,000 to £70,000 you are in a break-even zone where a company saves roughly £500–£2,000 a year on full extraction. Above £80,000, a limited company is usually clearly ahead, especially if you use employer pension contributions. But these are starting points — the right answer depends on your specific numbers and goals.

At what profit should I incorporate?

There is no single number, but on a simple full-extraction basis the tax-only case for a limited company rarely stacks up below £30,000 of profit, and only starts to bite consistently above £50,000. The reason is that a company adds around £600–£3,000/year of accountancy and compliance costs, which has to be earned back in tax savings before incorporating is rational. The crossover is closer to £80,000 if you also use employer pension contributions or split dividends with a spouse. If your profit is genuinely growing, it is worth running the actual numbers each year rather than incorporating on rule-of-thumb.

Has the tax advantage of a limited company shrunk?

Yes — significantly. A decade ago, incorporating offered a large and almost automatic tax saving. Two changes have eroded it. First, corporation tax rose from a flat 19% to a 19%–25% range (post-2023), so profits over £50,000 pay more than they did. Second, dividend tax rose by 2 percentage points in April 2026 — to 10.75% (basic), 35.75% (higher) and 39.35% (additional) — and the dividend allowance is just £500. On full annual extraction, the simple comparison now often favours the sole trader at low-to-middling profits. The company's edge today comes mainly from structural advantages — profit retention at 19%, employer pensions, spousal dividends and a tax-efficient eventual sale — not from headline rates.

Do limited companies pay less tax than sole traders?

Not automatically, and not as much as they used to. A sole trader pays Income Tax (20% / 40% / 45%) and Class 4 NI at 6% on all profit above the £12,570 personal allowance — whether they take it out or not. A limited company pays Corporation Tax (19% up to £50,000, an effective ~26.5% marginal between £50,000 and £250,000, and 25% above £250,000), and the director then pays dividend tax on extraction. After the April 2026 dividend rise, the combined company-plus-personal tax bill is now close to — and at lower profits often above — the sole trader equivalent on full extraction. The company genuinely saves tax when you can retain profit, use employer pension contributions, or split dividends with a spouse.

How much extra does a limited company cost to run?

Typically £600–£3,000 a year in accountancy and compliance costs above the sole trader equivalent. The reasons: a company needs annual statutory accounts, a CT600 corporation tax return, a confirmation statement, payroll for any director salary, dividend paperwork (board minutes and vouchers) and PAYE filings. Many limited companies also pay for accounting software and bookkeeping support. Companies House filings are public, so accounts and director details are visible to anyone. This admin overhead is exactly why the tax saving has to be meaningful before incorporating is worth it.

Can I switch from sole trader to limited company later?

Yes — and many owners do. You transfer your sole-trade business and goodwill into a newly-formed limited company on a chosen date (often a year-end, for a clean split). Incorporation relief can defer any Capital Gains Tax on transferring business goodwill and assets, provided the conditions are met. Your tax world then changes: the company pays Corporation Tax, and you pay yourself via salary and dividends. The formation itself is quick — Companies House registration takes 24 hours and costs around £50 — but the tax planning around the move (timing, incorporation relief, VAT, how you will extract income afterwards) is where care pays off. See our switching-structure spoke for the tax side, or Verity for the formation mechanics.

What is corporation tax marginal relief?

Marginal relief is the tapered Corporation Tax rate that applies to company profits between £50,000 and £250,000. Below £50,000 the small-profits rate of 19% applies. Above £250,000 the main rate of 25% applies. In between, you pay an effective rate that rises smoothly from 19% to 25% — roughly 26.5% on profit in that band, because the calculation works as a marginal claw-back of the small-profits rate. The thresholds are divided between associated companies, so if you own two or more trading companies the bands are split between them. Source: GOV.UK Corporation Tax rates.

Do both structures pay VAT at the same threshold?

Yes. The £90,000 VAT registration threshold applies equally to sole traders and limited companies — it is a turnover test, not a structure test. If your taxable turnover exceeds £90,000 in any rolling 12-month period, or you expect it to in the next 30 days, you must register for VAT regardless of structure. The same rules on standard, reduced and zero rates, the Flat Rate Scheme, and Making Tax Digital for VAT apply to both. Switching from sole trader to limited company is a new legal entity, so your VAT registration has to move across — that is handled at incorporation rather than carried over automatically.

Why is limited liability important?

As a sole trader, you and the business are the same legal person — so the business's debts are your debts, and creditors can pursue your personal assets (home, savings, car) if the business fails or is sued. A limited company is a separate legal entity, so your personal exposure is generally limited to what you have put in (your share capital and any personal guarantees you have given). For any business with real risk, debt, customer contracts, or staff, limited liability alone can justify incorporating — even before any tax consideration. For a simple, low-risk service business with modest profits, it matters less.

What's the simplest structure if I'm just starting out?

For most people starting a UK business with modest expected profits and low risk, the sole trader route is the simplest and usually the right starting point. Registration is a single online form with HMRC, there is one Self Assessment return a year, no Companies House filings, no public accounts, no payroll, and you can access all your profit immediately. The tax case for incorporating rarely stacks up below £30,000 of profit in 2026/27, and the admin cost of a company is real. If your business takes off — or you take on meaningful risk, debt or contracts — you can incorporate later, often using incorporation relief to defer any CGT. Start simple; structure up when the numbers and risk justify it.

What about partnerships and LLPs?

Partnerships and Limited Liability Partnerships (LLPs) sit between the two main structures. A general partnership is taxed like multiple sole traders — each partner pays Income Tax and Class 4 NI on their share of the profit, with joint and several liability for partnership debts. An LLP is also tax-transparent (partners taxed individually on profit share) but provides limited liability like a company, and files public accounts. Most owner-managers choose between sole trader and limited company; partnerships make sense when two or more people genuinely share a business and want simple profit allocation, and LLPs are common in professional services. The general 2026/27 tax dynamics for partners broadly mirror the sole trader analysis on this page.

The 'just incorporate' advice is outdated for 2026/27.

Corporation tax rose, and dividend tax rose another 2 points in April 2026. On simple extraction, the sole trader is now often level — or ahead — up to fairly high profits. Run the real numbers on your business before deciding.

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About the author

Mehmood Rajoka, Managing Partner, RR Accountants

Managing Partner at RR Accountants — a UK practice supervised by the Institute of Financial Accountants. Specialist focus on UK landlord and property tax, MTD for Income Tax, and limited-company advisory. RR Accountants serves clients across four UK offices.

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This guide is general information about the UK tax treatment of sole traders and limited companies in 2026/27. It is not personal tax or legal advice — the right structure for you depends on your specific profit level, risk profile, family circumstances, retention and exit plans. Speak to a regulated UK accountant before acting. Rates and thresholds verified against GOV.UK as of 31 May 2026. Tax rates change each April — re-check primary sources before relying on these figures. See our Limited Company service → or book a discovery call.