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Making Tax Digital for Income Tax (MTD for Income Tax, sometimes written MTD ITSA) is now in effect for the first group of taxpayers, and many doctors are unsure whether it applies to them.
The uncertainty is fair.
A doctor can hold an NHS salary, a share of GP partnership profits, private practice income, locum work and rental income at the same time, and the rules do not treat all of these the same way.
This comprehensive guide explains everything doctors need to know about MTD, from the basics of what's changing to practical steps for ensuring your practice remains compliant.
What Is Making Tax Digital for Doctors?
Making Tax Digital for income tax is HMRC's ambitious program to modernise the UK tax system by requiring taxpayers to keep digital records and submit tax information using MTD-compatible software
For doctors with private practice or locum income, MTD fundamentally changed how you record income and expenses, maintain financial records, and submit information to HMRC.
The days of spreadsheets, paper records, and manual tax return preparation are coming to an end, replaced by a digital system.
When do you qualify for MTD?
MTD for Income Tax is being introduced in stages, set by qualifying income:
From 6 April 2026, for those with qualifying income above £50,000. This stage is already in effect.
From 6 April 2027, for those with qualifying income above £30,000.
From 6 April 2028, for those with qualifying income above £20,000. The position for income below £20,000 is still under review.
HMRC works out whether you have crossed a threshold from your most recent Self Assessment return.
A doctor whose private income first passes £30,000 will therefore be looking at the April 2027 stage rather than the one already running.
A small number of people can apply for a digital exclusion exemption, on grounds such as age, disability, or not being able to get online, though most doctors will not qualify.
MTD Timeline
What Is Qualifying Income for Making Tax Digital for Doctors?
Whether you are within MTD depends on your qualifying income. It is the total gross income from self-employment and property in a tax year, measured before you deduct any expenses. Gross matters here.
If you have more than one source of income, add them together.
A doctor with £35,000 of private practice income and £20,000 of rental income has £55,000 of qualifying income, even though neither source on its own reaches the first threshold.
Several types of income are left out of this figure, and they are:
Income That Does Not Count as Qualifying Income
Not all income is included when determining whether Making Tax Digital for doctors applies. Excluded income generally includes:
PAYE-only NHS employment income
Pensions
Savings and dividend income
Other income already fully taxed at source
Any GP partner's share of partnership profits
How MTD Changes Daily Record-Keeping for Medical Professionals?
Once an income source is within MTD, the first step is to sign up for it. You register through your HMRC online account, known as the Government Gateway, or you authorise your accountant to act as your agent and sign you up, since eligible doctors are not moved across automatically.
After that, three things change in how you handle the income.
Digital Records
You keep your records in software rather than on paper or in a standalone spreadsheet. For a doctor, this means logging each item of in-scope income as it arises, whether that is a private consultation fee, a medico-legal report or a self-employed locum session, along with the related expenses.
Most record this on the cash basis, which means you enter income and expenses when the money is received or paid rather than when it is invoiced. You can still keep paper receipts, but the figures must be entered into the software you choose.
Quarterly Updates
You send HMRC four updates a year, summarising the income and expenses for each of your income sources.
You can report using standard quarters, which run from the 6th of the month, or calendar quarters, which run to the end of the month. The submission deadlines are the same either way: 7 August, 7 November, 7 February and 7 May.
Each update is cumulative. Your first update covers the first quarter, your second repeats those figures and adds the next quarter, and so on through the year. If something was wrong in an earlier update, you fix it in the next one and the running total corrects itself.
Taxpayers have two options for submitting quarterly updates under MTD for income tax: standard quarters or calendar quarters.
Final Declaration
After the four updates, you confirm your position for the year through a Final Declaration. This replaces the old Self Assessment return and is due by 31 January following the end of every tax year, so the Final Declaration for the 2026/27 tax year is due by 31 January 2028. It must be submitted through MTD-compatible software.
The Final Declaration is where everything else comes back into the picture. You bring in your NHS salary, your pension, any dividends and savings interest, and you claim the reliefs and allowances that were not part of your quarterly updates. The income that sits outside MTD during the year is still declared here, at the end of it.
What MTD does not change for Doctors
A lot of the confusion among doctors comes from mixing up MTD with parts of the tax system it has nothing to do with. The following all stay exactly as they were.
Your NHS salary and tax code. NHS pay is still taxed through PAYE, and your tax code still sets how much comes off each month. If your code looks wrong after starting at a new trust or picking up a second post, that is a PAYE matter for HMRC and has no bearing on whether you are in MTD.
Claiming relief on professional costs. You still claim relief on GMC registration, medical defence body membership and recognised professional subscriptions in the usual way. Being asked to file a Self Assessment return because those claims are large does not put you into MTD, which only covers self-employment and property income.
Locum work paid through a tax code. A locum taxed through a tax code is an employee for that work, so the income is outside MTD however varied or short-term the shifts are. Only genuinely self-employed locum income can bring you into the regime.
VAT. If you are registered for VAT, you are likely already filing under MTD for VAT. That is a separate system from MTD for Income Tax, though the same software can often handle both.
Penalty and Compliance Risk Under Making Tax Digital for Doctors
The penalty regime that came in with MTD, set out in the Finance Act 2021, has two separate parts: penalties for filing late and penalties for paying late.
Late filing
Late filing uses a points-based system rather than an automatic fine each time.
You get one point each time you file a quarterly update late.
Once you reach the threshold for your filing pattern, which is four points for quarterly updates, a £200 penalty applies.
Every further late update after that brings another £200.
Points do not stay on your record forever. They are cleared once you have brought all submissions up to date and then filed on time across a set compliance period.
The first-year easement
Doctors mandated in the first stage were given a lighter first year, with no points for late quarterly updates during an initial period, although the Final Declaration deadline still applied.
This easement has not been extended to those joining in later stages, so check the position for the year you are brought in.
Late payment
Late payment is dealt with separately from late filing.
Time after tax due date | Late payment penalty |
|---|---|
Within 15 days | No late payment penalty |
16 to 30 days late | 3% of outstanding tax (4% from April 2027) |
30 days late | Extra 3% of outstanding tax (4% from April 2027) |
From day 31 onwards | 10% per year on unpaid tax, calculated daily |
Resetting Penalty Points
Penalty points don’t remain on your record indefinitely, but they only reset if two conditions are met:
All outstanding submissions are brought up to date, and
You achieve a full compliance period with no late filings.
The compliance period depends on your submission frequency:
Quarterly filers: 12 months of on-time submissions
Annual filers: 24 months of on-time submissions
Important Update
Doctors joining MTD in April 2026 benefit from a soft-landing period with no penalty points for their first four quarterly updates, but the Final Declaration deadline still applies—and this relief does not extend to those joining in 2027 or 2028.
Which of your income MTD for Income Tax actually touches
The regime was created by the Finance (No.2) Act 2017, with the detail set out in regulations made under it, but what matters to you is simpler than the law sounds. MTD for Income Tax applies to income from self-employment and from property.
You keep digital records of that income and report it to HMRC through compatible software. Income taxed through PAYE, such as your NHS salary, sits outside the regime entirely.
For doctors, the practical question is which hat you are wearing for each stream of income. The same person can be inside MTD for one income source and outside it for another.
Salaried hospital doctor, trainee or salaried GP. Your NHS pay is taxed through PAYE and is outside MTD. A doctor in training with no private work sits here too. You only come into the regime if you also have self-employment or property income above the threshold.
GP partner. Your share of partnership profits is reported on the partnership return, not as your own self-employment. As things stand, partnerships have not been brought into MTD for Income Tax and no start date has been set, so a partner's profit share is outside the regime for now.
Private practitioner working as a sole trader. Fees from private consultations, procedures, medico-legal reports, expert witness work and insurance medicals are self-employment income. This is the income most likely to bring a doctor into MTD.
Locum doctor. This depends on how you are engaged. A locum paid through a trust bank or agency under PAYE is an employee and is outside MTD. A locum working as a sole trader is self-employed and can be within it. A locum working through their own limited company is outside MTD for Income Tax, because the company, not the individual, earns the income.
Doctor who also lets property. Rental income counts towards your position, and is added to any self-employment income when your threshold is worked out.
Take a consultant who earns a six-figure NHS salary and also runs a private clinic that brings in £40,000 a year. The NHS salary is irrelevant for MTD. Only the £40,000 of private income is measured against the threshold.
Choosing the Right MTD Software for Doctors
Selecting appropriate MTD-compatible software is one of the most important decisions doctors will make when transitioning to Making Tax Digital for income tax. The right MTD software for doctors can transform a compliance requirement into an opportunity to gain better financial visibility and control over your practice.
When evaluating MTD software options, doctors should consider several factors specific to medical practice.
Multiple Income Streams Choose software that can record and categorise income from NHS work, private practice, locum agencies, and other sources.
Expense Tracking for Doctors Ensure the software supports doctor-specific expenses such as indemnity insurance, CPD, professional fees, and home office costs.
Integration Capabilities Look for bank feed integration and compatibility with payment platforms or practice management systems to reduce manual entry.
Mobile Functionality A mobile app allows you to capture self-employed locum log income and expenses between sites rather than at quarter-end.
Some recognised products, such as our product RentalBux, offer free or low-cost tiers for people with simple affairs, with paid tiers adding bank feeds and support for more than one income source.
On the other hand, if you already keep records in a spreadsheet, bridging software can connect that spreadsheet to HMRC, though the underlying records still have to meet the digital requirement.
Why Consider Rental Bux for MTD Compliance?
For doctors seeking a simple, compliant way to manage MTD—specialist platforms such as Rental Bux stand out.
Key Features Involved:
Pre-built chart of accounts aligned with HMRC requirements, making it easier to categorise income and expenses correctly from day one
Property-centric accounting, ideal for doctors who also earn rental income alongside medical work
Free MTD software option for doctors with simple setups, with the flexibility to upgrade as needs grow
HMRC-approved and accountant-built, ensuring compliant digital records, automated submissions, and reliable reporting
For doctors managing mixed income streams and MTD obligations, Rental Bux offers a practical and compliant solution worth considering.
How a Doctor should prepare for MTD
The same steps apply whatever kind of doctor you are, because the first job is always to sort which of your income is in scope.
List every source of income you have. For most doctors that is some mix of NHS salary, a GP partnership share, private practice fees, locum work and rental income.
Set aside the income that sits outside MTD. That is your NHS salary, your pension, any dividends and savings interest, your share of partnership profits, and any locum work paid through a tax code or your own company.
Total the gross income that is left, before expenses. This is usually self-employed private practice, self-employed locum work and property. That total is your qualifying income.
Check that total against the thresholds and stage dates above. This tells you whether you are in MTD and from which tax year.
If you are in scope, move your records into HMRC-recognised software. Choose one that records income and expenses from your phone if you work across sites, and that your accountant can access if you want them to file.
Sign up for MTD for Income Tax through your HMRC online account, or have your accountant sign you up as your agent, once you know your start year.
Start keeping digital records from the first day of the tax year you are brought in, not from your first quarterly deadline.
If nothing is left after step 2, you have nothing to do now. Check your position again if your private work grows, you take on a let, or HMRC sets a start date for partnerships.
If you are not sure which of your income sources count, confirm your position with an accountant before your stage begins, rather than waiting for HMRC to tell you after the event.
Common Misconceptions About Making Tax Digital for Doctors
Many doctors approaching MTD have concerns based on misconceptions about what's actually required. Understanding what MTD for income tax for doctors does and doesn't require can alleviate much of the anxiety surrounding the transition.
Misconception | Reality |
|---|---|
MTD requires constant real-time updates | MTD for doctors requires digital records, not live updates. Most doctors find that updating income and expenses once a week (around 30 minutes) is sufficient, with quarterly submissions taking very little extra time |
You can’t use an accountant under MTD | You can continue using your accountant as normal. Accountants can maintain records, submit quarterly updates, and complete final declarations on your behalf. MTD for doctors simply requires digital records and compatible software |
MTD means paying tax every quarter | Quarterly updates are information-only submissions, not tax payments. Tax payment dates remain unchanged—payments on account are still due on 31 January and 31 July, with a balancing payment the following January |
MTD software is expensive | While advanced accounting packages exist, low-cost and simple MTD-compatible software is available and suitable for most doctors |
Paper records are no longer allowed | You can still keep paper receipts. However, the details must be entered into digital records. Many doctors find scanning or photographing receipts more convenient than storing physical files |
Conclusion: Embracing the Digital Tax Future
Making Tax Digital for Doctors represents a fundamental shift in how UK doctors with private practice and locum income will manage their tax affairs.
While the transition may seem daunting, particularly for those unfamiliar with digital accounting systems, MTD ultimately offers opportunities for better financial management and more accurate tax compliance.
For locum doctors and those running private practices alongside NHS work, MTD for doctors is simply the new reality of tax compliance.
By understanding the requirements, choosing appropriate software, establishing good digital record-keeping habits, and seeking professional support when needed, you can ensure your transition to Making Tax Digital is smooth and successful.
The digital tax future is here. With proper preparation and the right approach, MTD can become an asset to your practice management rather than a burden to be endured.
Frequently Asked Questions
Yes, but only in limited circumstances. Doctors are automatically exempt if they do not have a National Insurance number or file returns as a trustee or personal representative. Others may apply for a digital exclusion exemption due to age, disability, health issues, lack of internet access, or religious beliefs—approval from HMRC is required.
