Medical professionals face some of the UK's most complex personal tax: mixed NHS and private income, locum work through a limited company or as a sole trader, and the notorious pension annual-allowance taper that hands senior consultants unexpected five-figure tax charges. Next Tax Source prepares your Self Assessment, structures locum and private income efficiently, and models the pension position before it bites — reviewed and signed by a chartered accountant.
What We Handle
- Self Assessment combining NHS, private practice and locum income
- Limited company vs sole trader for locum work — and IR35 where it applies
- Pension annual-allowance taper modelling (the £10k taper for high earners)
- Expenses doctors can claim — indemnity, GMC/royal college fees, training, equipment
- The 60% effective-rate band between £100k–£125,140 and how pensions soften it
Who This Is For
Few professions combine a high income with as much tax complexity as medicine. A clinician's pay rarely arrives in one neat stream: there is the NHS salary, the private clinic sessions, the occasional medico-legal report, the locum shifts, perhaps a teaching honorarium or a directorship in a chambers or group. Layered over all of it sits the NHS Pension Scheme — generous, but the source of some of the most punishing and least understood tax charges in the system. Many doctors only discover the problem when a five-figure pension tax bill lands without warning.
We work with clinicians at every stage:
- NHS consultants and GPs with private practice alongside their substantive post, balancing two pay sources and a pension that grows faster than they realise.
- Locum doctors working through agencies, NHS banks or their own limited company, navigating IR35 on every engagement.
- Junior and training-grade doctors with locum top-ups who suddenly need to file a return for the first time.
- GP partners taxed on a share of practice profits, with superannuation and partnership accounts to reconcile.
- Dentists, surgeons and consultants in private groups whose income has pushed them into the higher tax bands and the personal-allowance taper.
- Senior clinicians caught by the annual allowance, often for several past years at once, needing the position calculated and a plan put in place.
What Doctors' Tax Actually Involves
Most clinicians with any income beyond a single PAYE NHS salary need to file a Self Assessment tax return with HMRC. You can check whether you are required to file using the official tool on GOV.UK, but in practice private income, locum work, profits from a limited company, income over the higher-income thresholds, or a pension annual-allowance charge will all pull you into the system. Getting it right means joining up several distinct pieces:
- Combining your income sources — NHS salary, private fees, locum earnings and any company dividends — onto one accurate return.
- The pension annual allowance — the cap on tax-relieved pension growth each year, which tapers down for high earners. NHS defined-benefit growth is measured in a particular way that can produce a large notional figure, and exceeding the allowance triggers a tax charge.
- Scheme Pays — the option to have the NHS pension scheme settle an annual-allowance charge from your benefits rather than paying it from your own pocket, which has deadlines that must be met.
- The high-income personal-allowance taper — between £100,000 and £125,140 the personal allowance is withdrawn, creating an effective marginal rate of around 60% on income in that band.
- Locum structure and IR35 — whether a limited company is appropriate, and whether each engagement falls inside or outside the off-payroll working rules.
- Allowable expenses and reliefs — the professional costs of practising medicine, and pension contributions used deliberately to manage the bands.
The annual allowance, the taper thresholds, the tax-band boundaries, the dividend allowance and the Self Assessment deadlines are all set by HMRC and change from one tax year to the next — and recent years have seen significant movement. We confirm every figure against current HMRC guidance for the relevant tax year before anything is filed, and we tell you plainly where a rule is in transition.
The Pension Trap, Explained Plainly
The annual-allowance problem is the single issue we are most often asked to untangle, because it is genuinely counter-intuitive. In a defined-benefit scheme like the NHS, the "growth" measured against the allowance is not what you paid in — it is the increase in the capital value of your promised pension over the year, which a pay rise, a promotion or a return to full-time work can inflate sharply. For a high earner whose allowance has also tapered down, the two effects collide and produce a charge that bears no relation to the cash that left their bank account.
Handled properly, the charge can often be managed: by calculating the position early, using any carry-forward of unused allowance from previous years, electing Scheme Pays within the deadline, and planning future contributions and earnings with the bands in mind. Handled late, it becomes an unpleasant surprise and sometimes a missed deadline. HMRC explains the framework in its guidance on the pension annual allowance; we translate it into your actual numbers.
Common Mistakes We Are Asked To Fix
- Ignoring pension-savings statements until a charge is already overdue and the Scheme Pays election window has closed.
- Assuming a limited company is always best for locum work, when many agency and NHS engagements fall inside IR35 and the saving evaporates.
- Not filing at all despite private or locum income, on the mistaken belief that PAYE has covered everything.
- Missing the personal-allowance taper and the 60% band, when a pension contribution would have reclaimed much of it.
- Under-claiming allowable expenses — indemnity, professional fees, training — or over-claiming costs that are not allowable.
- Leaving multiple years unresolved, when carry-forward and a coordinated approach could have reduced the cumulative charge.
How Next Tax Source Handles It
Our model pairs an always-on team of specialist AI agents with licensed human review. The agents bring your income sources together, model the annual-allowance and taper position before deadlines bite, assess each locum engagement against the IR35 rules, and capture the professional expenses doctors are entitled to claim. A UK chartered accountant then reviews and signs off your return before submission. We prepare everything to a ready-to-sign standard; the filing itself is made by a licensed professional, never on AI output alone. You can book a private consultation to walk through your position, or see our pricing first.
What To Prepare
- Your NHS P60 and any P45s, plus private-practice income records
- Locum income details and how each engagement is structured (agency, bank or limited company)
- Your annual pension-savings statement(s) from the NHS Pension Scheme, going back several years if you have them
- Records of professional expenses — indemnity, GMC and royal college fees, training, equipment
- Any limited-company accounts and dividend records, if you operate through a company
- Your Unique Taxpayer Reference and details of any prior returns
You can also estimate your position first with our calculators, and read more clinician-focused guidance in our journal.
Questions People Ask
Why did I get a huge pension tax charge?
In the NHS defined-benefit scheme, the growth measured against the annual allowance is the increase in the capital value of your promised pension — not what you contributed — so a pay rise or promotion can inflate it sharply. For high earners the allowance also tapers down, and the two effects together can trigger a large charge that bears little relation to the cash you actually paid in. We calculate your taper, check whether Scheme Pays applies, use any carry-forward, and plan around it.
Should I work as a locum through a limited company?
Sometimes — a company can be efficient, but IR35 and changes to dividend taxation have narrowed the gap, and many agency and NHS engagements fall inside IR35, which removes much of the benefit. We assess each engagement on its facts rather than assuming a single answer, and we factor in the cost and admin of running a company.
What expenses can doctors claim?
Medical indemnity insurance, GMC and royal college subscriptions, training and exam costs, professional journals, and equipment used for work are among the costs commonly allowable, subject to HMRC's rules on what is wholly and exclusively for the profession. We make sure the allowable ones are claimed and the rest are not, so the return is both efficient and defensible.
Do I need to file a Self Assessment as an NHS doctor?
If you have private income, locum work, income above the higher-income thresholds, company dividends or a pension annual-allowance charge, almost certainly yes. A salaried post taxed entirely under PAYE with no other income may not require one. We confirm your specific position — you can also check using HMRC's official tool on GOV.UK — and file correctly if a return is due.
What is the 60% tax trap and how do I avoid it?
Between £100,000 and £125,140 of income, your tax-free personal allowance is gradually withdrawn, which produces an effective marginal rate of around 60% on income in that band. A well-timed pension contribution or other allowable deduction can bring your adjusted income back below the threshold and reclaim the allowance. We model this for you so the planning is deliberate, not accidental.
What is Scheme Pays and should I use it?
Scheme Pays lets the NHS Pension Scheme settle an annual-allowance charge from your future benefits rather than you paying it in cash now. It can ease an immediate liability, but it reduces your eventual pension and has strict election deadlines. Whether it suits you depends on your wider position, so we model the trade-off before you elect — and we make sure the deadline is met if you do.
Can you sort out several past years at once?
Yes. We routinely reconstruct several years of pension-savings statements and income, identify charges that were missed, apply carry-forward of unused allowance where available, and bring your position fully up to date with HMRC in a single coordinated piece of work.
Who prepares and who signs my return?
Our specialist AI agents prepare your Self Assessment and supporting calculations to a ready-to-sign standard with full workpapers. A UK chartered accountant reviews and signs off before anything is filed. Nothing is submitted to HMRC on AI output alone.
Every Filing, Signed By A Professional
We prepare it all to a ready-to-sign standard; a UK chartered accountant reviews and signs before anything is filed. Tell us your situation and we'll return a scoped proposal within one business day.
Book A Consultation
See Pricing