NHS doctors face a uniquely complex tax situation. Between the generous but rigid NHS Pension Scheme, high marginal rates from the Personal Allowance taper, locum income alongside salaried work, and the Annual Allowance charge, medical professionals often pay more tax than necessary simply because the system is confusing. This guide covers the key tax issues specific to NHS doctors in 26-27, with current thresholds derived from HMRC rates. [1]
How does the NHS Pension interact with tax?
The NHS Pension Scheme is a defined benefit scheme — your contributions buy a guaranteed income in retirement rather than building a pot. However, for tax purposes, HMRC measures pension “growth” (the increase in the value of your benefits each year) against the Annual Allowance of £60,000. If your pension growth exceeds this, you face an Annual Allowance charge at your marginal rate.
For consultants and senior doctors earning above £100,000, the situation is worse. The pension Annual Allowance is tapered: for every £2 of “adjusted income” above £260,000, the allowance reduces by £1, down to a minimum of £10,000. Many consultants with total income (salary + pension input) above £260,000 find their pension growth alone exceeds their tapered allowance — triggering a tax charge without any choice in the matter.
The “Scheme Pays” facility lets you ask the NHS Pension Scheme to pay the Annual Allowance charge on your behalf (reducing your future pension benefits). This avoids a large upfront payment but reduces your retirement income. It must be elected by 31 July following the end of the tax year.
How is the £100K Personal Allowance trap relevant to doctors?
Once your adjusted net income exceeds £100,000, your Personal Allowance of £12,579 is progressively withdrawn at £1 for every £2 above the threshold. This creates an effective 60% marginal tax rate between £100,000 and £125,140. For an ST6+ registrar or new consultant earning around £90,000–£120,000, pay rises, clinical excellence awards, or a few locum shifts can push income into this zone. [2]
The most effective countermeasure is salary sacrifice pension contributions or additional voluntary contributions (AVCs) to bring adjusted net income below £100,000. If you earn £110,000 and sacrifice £10,000 into your pension, your adjusted net income drops to £100,000 — fully restoring your Personal Allowance and saving approximately £2001 in additional tax beyond the direct pension relief.
How is locum income taxed for NHS doctors?
Locum shifts done outside your substantive NHS contract are self-employment income. This means they are subject to income tax at your marginal rate (20%/40%/45%) plus Class 2 and Class 4 National Insurance. However, as a self-employed locum, you can deduct allowable expenses before tax is calculated:
- Medical indemnity insurance — MDU, MPS, or MDDUS subscriptions
- Travel to locum assignments — mileage at HMRC approved rates (45p/mile for first 10,000 miles)
- Professional body fees — GMC registration, Royal College memberships, BMA
- CPD and courses — conferences, exam fees, textbooks directly related to your practice
- Equipment — stethoscope, instruments, scrubs if not provided
If you do locum work alongside a substantive NHS post, the locum income is added to your employment income. This means it is likely taxed at 40% or 45% because your employment income already uses up your Personal Allowance and basic rate band. You must register for Self-Assessment and file a tax return annually.
Should I use a limited company for locum work?
Some doctors set up a limited company for locum work to benefit from Corporation Tax (currently 19–25%) instead of personal income tax (40–45%). However, IR35 rules mean this only works if you genuinely meet the criteria for being “outside IR35” — control, substitution, and mutuality of obligation tests. Most NHS locum shifts are likely inside IR35, making a company structure ineffective for tax purposes.
If you do substantial private practice (clinic sessions, medico-legal work, private hospital lists), a company structure may be more appropriate because these engagements are more likely to be outside IR35. Seek specialist medical accountancy advice before incorporating.
What about Clinical Excellence Awards and tax?
Clinical Excellence Awards (CEAs) and Local Clinical Excellence Awards (LCEAs) are taxed as normal employment income — PAYE and NI are deducted in the month they are paid. Because they are typically paid as a lump sum, they can push you into a higher bracket for that month (though the cumulative PAYE system evens this out over the year). More critically, they increase your adjusted net income, potentially triggering the Personal Allowance taper above £100,000 or the pension Annual Allowance taper above £260,000.
Consider making additional pension contributions in a year when you receive a CEA to offset the tax impact. The contribution reduces your adjusted income for both the Personal Allowance taper and the pension taper calculations.
How can I model my total tax position?
Use the income tax calculator at £95,000 (a typical consultant salary) to see your baseline tax position. Then adjust for additional locum income by entering your total expected earnings. For salary sacrifice modelling, see our salary sacrifice pension guide and our guide to reducing your tax bill.
Sources
- HMRC — Pension Annual Allowance. Annual Allowance of £60,000, taper for high earners above £260,000. Accessed July 2026.
- HMRC — Income Tax rates and Personal Allowances. Personal Allowance £12,579, taper starts at £100,000. Accessed July 2026.
- HMRC — Self-employed National Insurance rates. Class 2 and Class 4 rates for locum income. Accessed July 2026.