Many GPs and consultants ask whether running a limited company would be more tax efficient than staying as a partner, salaried doctor or sole-trader locum. Weighing the GP limited company tax benefits and drawbacks properly means looking past the headline corporation tax rate, because for doctors the two biggest factors, the NHS contract and the NHS pension, sit outside the tax arithmetic entirely.

This guide gives an honest 2026/27 picture: what a company can and cannot do for a GP, the current dividend and corporation tax figures, and the pension trap that catches doctors who only look at the tax saving. It is general information, not advice for your situation. For the mechanics of forming the company see our step-by-step incorporation guide, and for the rates themselves see GP corporation tax explained.

The big caveat first: a company cannot hold an NHS contract

Before any tax comparison, the single most important point for GPs: a limited company cannot hold an NHS GMS or PMS contract. NHS primary medical care funding (the Global Sum weighted by the Carr-Hill formula, plus QOF, enhanced services and PCN or Network Contract DES funding) is paid to the contract holder, a GP partnership or an individual, not to a company.

So incorporation is a private-work decision only. The income that can sensibly go through a GP or doctor's company is private and non-NHS work: insurance medicals, medico-legal and expert-witness reporting, occupational health, cosmetic and self-pay clinics, education and media, and personal service company locum work that is genuinely outside IR35. Your NHS partnership or salaried income cannot be incorporated. Anyone telling you to "put your GP income through a company" has not understood the NHS contract rules.

The tax benefits of a GP limited company

Corporation tax can be lower than income tax

A company pays corporation tax on its profits rather than the doctor paying income tax and National Insurance on the same money. For the financial year from 1 April 2026 the rates are 19% on profits up to £50,000 and 25% on profits over £250,000, with marginal relief tapering between the two thresholds (standard fraction 3/200, giving an effective rate of around 26.5% in the band).

Compare that to a doctor paying 40% higher-rate income tax (45% additional rate above £125,140) plus 2% Class 4 National Insurance on self-employed profit over £50,270, and the company rate looks attractive in isolation. The key word is "in isolation", because the money still has to come out of the company to reach your pocket, and that is where dividends come in.

Dividends are taxed below salary, but the gap narrowed in 2026/27

A director can extract company profit as dividends, which are taxed at lower rates than salary and carry no National Insurance. From 6 April 2026 the dividend rates are 10.75% ordinary (basic) rate, 35.75% upper (higher) rate and 39.35% additional rate, with a £500 dividend allowance (2026/27). These rose from 8.75% and 33.75% in 2025/26 (the additional rate stayed at 39.35%).

That 2 percentage-point rise on the ordinary and upper rates is important: it deliberately narrows the gap between dividends and salary, so the pure extraction saving from incorporating private work is smaller in 2026/27 than it was a year earlier. A typical structure pays a modest salary (often at or near the secondary National Insurance threshold for a single-director company) topped up with dividends, but the numbers need running on your actual profit, not assumed.

Retained profit and timing flexibility

A company does not have to distribute everything it earns. You can leave profit in the company in a high-income year and draw it as dividends later, for example when you cut your sessions, take partial retirement or your other income falls. That deferral can keep you below a higher tax band or out of the personal allowance taper above £100,000. A partnership or sole trader is taxed on the profit as it arises, with no equivalent timing lever.

Family shareholders and asset protection

A genuinely employed spouse or family member on market-rate pay for real work can be a deductible cost, and shareholdings can be structured for legitimate family planning (this needs care to be commercial and defensible). Limited liability also offers some asset protection for private-business risk, though it does not replace clinical indemnity.

The drawbacks, starting with the NHS pension

Dividends are not NHS-pensionable

This is the drawback that most often kills the case for incorporation. Because a company cannot hold an NHS contract, income taken through a company is not NHS-pensionable, and dividends are not pensionable income at all. The NHS Pension Scheme is a defined-benefit scheme (everyone now accruing in the 2015 CARE section at 1/54th of pensionable earnings each year), and that accrual is valuable. Every pound you route through a company as a dividend earns zero NHS pension.

For a GP partner, pensionable profit is certified each year on the Type 1 Annual Certificate of Pensionable Profits; for a salaried GP it is the Type 2 self-assessment; for a freelance locum it is Locum forms A and B. None of that machinery captures company dividends. A hospital consultant's NHS post is pensionable, but private work through a company is never pensionable. The honest comparison therefore always pairs the tax saving with the pension accrual you give up, and for genuinely NHS-derived income that loss usually swamps the saving.

You cannot sell NHS goodwill on the way out

Some incorporation pitches lean on a future exit and Business Asset Disposal Relief (BADR). For a GP that argument does not hold for the NHS practice: the sale of NHS GP goodwill has been prohibited since 1 April 2004, now under the Primary Medical Services (Prohibition on the Sale of Goodwill) Regulations 2019 (SI 2019/251), which also blocks selling company shares whose value includes that goodwill. BADR can apply to a genuine private-practice disposal, at 18% for a qualifying disposal on or after 6 April 2026 (14% from 6 April 2025 to 5 April 2026, and 10% before 6 April 2025), with a £1m lifetime limit and a two-year qualifying period, but never to NHS goodwill. Do not build an incorporation case on selling NHS goodwill, because it cannot be done.

IR35 can remove the benefit on locum work

If you work through a personal service company, the off-payroll (IR35) rules decide whether that income is treated as employment income. For NHS Trust and other public-sector engagements the hirer or fee-payer determines status (from 6 April 2017); for medium or large private-sector hirers the hirer issues a Status Determination Statement (from 6 April 2021); only for small private clients does the company decide its own status. Where an engagement is inside IR35 the fee-payer deducts PAYE and NIC before paying the company, so the salary-and-dividend extraction route is unavailable for that income. IR35 has not been abolished and the off-payroll rules have not been repealed, so treat any "IR35 is gone" claim with suspicion. Our locum limited company pros and cons guide covers this in depth for sessional doctors.

Director's loan and the close-company charge

A medical company is a close company, so drawing money out as an overdrawn director's loan rather than salary or a declared dividend triggers a section 455 charge on the balance still outstanding nine months and one day after the year-end. The rate tracks the dividend upper rate: 33.75% on loans made in 2025/26 and 35.75% on loans made on or after 6 April 2026. The charge is repaid (under s.458) once the loan is cleared, but the refund is deferred to nine months after the end of the accounting period of repayment, so it ties up cash. It is a common, avoidable cost for doctors who treat the company account as a personal one.

More administration and filing

A company brings obligations a partnership or sole trader avoids: annual accounts and a Corporation Tax return filed with HMRC, an annual confirmation statement at Companies House, PAYE payroll for any salary, and directors' duties under the Companies Act including statutory registers. Professional indemnity may also need restructuring for company-based private practice. These take time and cost money, so the tax saving has to clear that overhead before incorporation is worthwhile.

Partnership versus limited company: an honest illustration

Take a GP with significant private income alongside their NHS partnership. The NHS partnership profit must stay in the partnership (it cannot be incorporated and it remains pensionable, certified on the Type 1 certificate). The private income could go through a company, where corporation tax at 19% and dividends at 10.75% or 35.75% (2026/27) might beat income tax at 40% plus Class 4 NIC on that slice.

But two things blunt the saving. First, the 2026/27 dividend-rate rise has narrowed the extraction advantage. Second, if any of that private income would otherwise have been pensionable (for some solo and locum work it can be), routing it through the company removes the accrual. The right answer is almost always to model the tax saving and the pension-accrual loss side by side, on your real figures, rather than acting on a headline rate. Where the private income genuinely sits outside the pension already, incorporation can earn its keep; where it does not, it often does not.

When incorporation tends to make sense for a doctor

  • Substantial private or non-NHS income (medico-legal, occupational health, cosmetic, self-pay) that is not NHS-pensionable in the first place, so there is no accrual to lose.
  • Profit you do not need to draw immediately, where leaving it in the company and timing extraction across tax years is valuable.
  • Managing the pension annual allowance, where routing private income outside pensionable pay helps keep you within the annual allowance and taper (the allowance is £60,000 for 2025/26, tapering where threshold income exceeds £200,000 and adjusted income exceeds £260,000, down to a £10,000 floor).
  • A genuinely employed family shareholder doing real work at a commercial rate.

And when it usually does not: a traditional NHS GP partner whose income is overwhelmingly NHS, where the contract cannot be incorporated and the pension accrual on that income is too valuable to give up.

Alternatives worth modelling first

  • Optimising partnership profit allocation and the timing of drawings.
  • Maximising in-scheme options such as Added Pension or money-purchase AVCs, and using carry-forward of unused annual allowance, before assuming you have a pension problem.
  • Incorporating only the private income streams while keeping NHS work in the partnership, a hybrid that often gives the best of both.
  • Reviewing your allowable expenses and structure as a sole trader first, since the Class 4 NIC main rate is now 6% (then 2% above £50,270) and Class 2 is no longer a required payment from 6 April 2024.

A note on MTD and VAT for incorporated doctors

Two practical points often missed. Making Tax Digital for Income Tax does not apply to limited companies (it is income tax, not corporation tax), so a doctor trading through a company is outside MTD for ITSA; it is unincorporated private GPs and locums with qualifying income over £50,000 who are brought in from 6 April 2026. On VAT, genuine private medical care by a registered practitioner is exempt, but cosmetic-only work, medico-legal and expert-witness reports and some occupational-health services can be standard-rated, and the registration threshold is £90,000 of taxable (non-exempt) turnover from 1 April 2024. Incorporating does not change the VAT liability of the underlying service.

Getting specific advice

The GP limited company tax benefits and drawbacks question only has a sensible answer once it is modelled on your figures: your income mix, how much is NHS-pensionable, your age and pension position, whether private income sits inside or outside IR35, and your retirement timeline. The wrong call can cost more in lost pension accrual than it ever saves in tax, and for NHS work it is not even an option.

Medical Accountants UK works with GPs, consultants and locums on exactly this decision. If you want the saving and the pension-accrual loss modelled side by side before you commit, get in touch and we will give you a clear, doctor-specific picture.