Understanding HMRC Rules for Medical Professionals: A Guide for 2026

As a medical professional, managing your finances can be just as complex as caring for patients. HMRC rules, tax rates and reporting requirements change regularly, and whether you are a doctor, dentist or other healthcare professional, understanding your tax responsibilities is essential to keeping your business and personal finances in good shape.

This guide sets out the HMRC rules that most affect medical professionals in 2026/27: record-keeping, Self Assessment, Income Tax, National Insurance, VAT, pensions, allowable expenses and working through a limited company.

If you would like help applying these rules to your own position, our accountants for doctors can give you tailored support.

Keep accurate financial records

Accurate record-keeping is the starting point for complying with HMRC rules. Whether you are self-employed, a partner in a practice or working through a limited company, you need to keep records of all your income and expenses.

In practice, that means keeping a clear record of:

• All your income: NHS pay, private fees, locum work and any other sources
• Your business expenses: such as medical supplies, insurance and travel, with the receipts and invoices to support them

Accounting software makes this much easier, and keeps your records in a form HMRC can work with.

Good records mean you pay the right amount of tax, avoid penalties for incorrect returns and claim every allowable expense. If you are within Making Tax Digital for Income Tax, those records must also be kept digitally.

Self Assessment

Self Assessment is central to the tax affairs of most self-employed and locum medical professionals. You need to file a return if you have income that is not fully taxed through PAYE, such as self-employment profits, partnership income, rental income or dividends above the dividend allowance. Being a company director does not, on its own, mean you have to file.

The key steps:

• Register with HMRC: if you become self-employed, tell HMRC so you can be registered for Self Assessment. Separately, you must register for VAT if your taxable turnover goes over £90,000 in a rolling 12-month period.
• File your return: the online deadline is 31 January following the end of the tax year.
• Pay your tax: Income Tax and Class 4 National Insurance on your profits are due by 31 January, with payments on account due on 31 January and 31 July where they apply.

Income Tax

Your Income Tax depends on your total taxable income. The rates below apply in England, Wales and Northern Ireland for 2026/27. Scotland has its own Income Tax bands.

The Personal Allowance is reduced by £1 for every £2 of adjusted net income over £100,000, and is lost entirely at £125,140. Our guide to the £100,000 tax trap explains how this affects higher-earning clinicians.

How this applies to different medical professionals:

• Self-employed doctors: you are taxed on your net profit (income minus allowable expenses). Capital allowances can be claimed on medical equipment and office furniture.
• Doctors working through a limited company: you can pay yourself a combination of salary and dividends. Dividends are taxed at lower rates than salary, but they are paid out of profits that have already borne Corporation Tax.

National Insurance contributions

If you are self-employed, you pay Class 4 National Insurance on your profits. Compulsory Class 2 contributions were abolished from 6 April 2024. If your profits are above the small profits threshold you are treated as having paid Class 2, which protects your State Pension record. If they are below it, you can choose to pay voluntary Class 2 contributions.

If you work through a limited company, Class 1 National Insurance applies to your salary: employee contributions for you, and employer contributions for the company.

Key points:

• Class 4: 6% on profits between £12,570 and £50,270, and 2% on profits above £50,270.
• Class 2: no longer compulsory; voluntary contributions are available where profits are below the small profits threshold.
• Class 1: paid by employees and employers on salaries and wages. Employer contributions are 15% above the secondary threshold of £5,000 a year.

VAT

Most medical services provided by registered health professionals are exempt from VAT. Some services are standard-rated, particularly those outside healthcare, such as purely cosmetic treatments.

VAT registration depends on your taxable turnover, not your total income. Exempt medical income does not count towards the £90,000 threshold. If your taxable services (for example, cosmetic treatments) go over £90,000 in a rolling 12-month period, you must register. Our guide to VAT registration for private healthcare clinics covers this in detail.

• Exempt: medical care provided by registered professionals.
• Standard-rated: some private treatments, such as purely cosmetic procedures.

Pension contributions and tax relief

Pension contributions are one of the most effective ways to reduce your tax bill. Personal contributions receive tax relief at your highest rate of Income Tax, within the annual allowance (normally £60,000) and up to 100% of your relevant earnings.

If you own a limited company, the company can make employer pension contributions for you. These are normally deductible against Corporation Tax. NHS Pension Scheme members should also keep an eye on their NHS pension annual allowance.

Allowable expenses

You can reduce your taxable profit by claiming allowable expenses: costs incurred wholly and exclusively for your work. These include:

• Medical supplies
• Capital allowances on equipment (depreciation itself is not tax-deductible)
• Professional indemnity insurance
• Office rent and utilities
• Business travel (not ordinary commuting)
• Professional subscriptions and CPD

Working through a limited company

Many medical professionals operate through a limited company. Paying yourself a combination of salary and dividends can be more tax-efficient than being a sole trader, depending on your income and circumstances.

• Dividends: taxed at 10.75% (basic rate), 35.75% (higher rate) and 39.35% (additional rate) from April 2026, after a £500 dividend allowance.
• Corporation Tax: 19% on profits up to £50,000 and 25% above £250,000, with marginal relief in between.
• Planning: profits can be retained in the company and drawn in later years when that is more efficient.

A limited company is not right for everyone. NHS pension access, IR35 and the extra administration all need weighing up. Our guide to IR35 for healthcare workers explains the main risk.

Summary

Understanding HMRC rules is essential for medical professionals. From Self Assessment and Income Tax to National Insurance and VAT, staying on top of the rules saves time, money and stress.

At Kudos Accounting, we specialise in accounting for healthcare professionals. Contact us for tailored advice on your tax position, or explore our personal tax services.

Frequently asked questions