A locum GP's toolkit should make four things reliable: finding suitable work, knowing what has been agreed, being paid correctly and practising with appropriate preparation and support. More applications do not necessarily improve any of them.
The most useful setup has one clear diary, one accurate record of completed work and payments, a defined pension and tax workflow, and a separate clinical learning routine. Choose products that support those functions without creating conflicting versions of the same information.
This updated guide reviews public information on 18 October 2026. It avoids treating software-generated documents as proof of eligibility or assuming that every locum engagement has identical financial rules.
Find work through the right route
Lantum is relevant to flexible GP work, while NASGP LocumDeck supports sessional organisation and direct practice relationships. Their value depends on suitable local opportunities and the administrative arrangement you actually use.
Before adding another marketplace, review existing practice relationships. Repeat work with clear terms may be more valuable than a larger stream of distant or unsuitable offers.
Keep an accurate availability record. If several platforms are used, decide which diary is authoritative and update it immediately after a booking is confirmed. A notification is not a confirmed session, and a provisional request should be labelled accordingly.
Choose an administrative system by the complete workflow
Locum Organiser describes invoicing, GP Locum A and B support and financial organisation. My Locum Manager describes diary, invoice, expense and pension-form functions. LocumDeck may already cover some needs within the way you organise work.
Compare the actual process: enter a session, confirm completion, generate the correct invoice, obtain approval, track the pension-related documentation where applicable and reconcile payment.
Use a trial or demonstration with hypothetical data where available. Test a corrected invoice, a cancelled session and a partial or delayed payment. An administrative product should handle exceptions clearly, not only make an ordinary invoice look attractive.
Keep one source of truth for income
Separate work booked, work completed, invoices sent and money received. These are different stages. A dashboard showing projected income should not be mistaken for available cash.
At least weekly, review completed but unbilled sessions, invoices awaiting approval, overdue payments and unmatched receipts. Assign a next action rather than simply carrying the same total forward.
Retain the booking agreement and relevant correspondence. A payment dispute is easier to resolve when the session scope, fee and approval process are documented rather than reconstructed from memory.
NHS pension forms require the right underlying arrangement
For relevant GP locum work, PCSE's Locum B information and the NHSBSA practitioner resources provide official starting points for forms and processes. Use the current year's documents and the correct national arrangements.
Do not assume that every session can be pensioned because an app can populate Locum A or B. Confirm eligibility, payer details, deadlines and the treatment of the specific engagement before submission.
The BMA notes that earnings processed through a limited company cannot be pensioned through the NHS scheme in the locum GP arrangement it describes. Keep this separate from other pension planning and obtain advice where the working structure is complex.
Making Tax Digital is already relevant in 2026
Under HMRC's published timetable, qualifying sole traders and landlords with income over GBP50,000 in 2024/25 should have started Making Tax Digital for Income Tax on 6 April 2026. The next thresholds are over GBP30,000 in 2025/26 for April 2027 and over GBP20,000 in 2026/27 for April 2028, subject to the applicable rules and exemptions.
HMRC's qualifying-income guidance explains that the assessment concerns relevant gross self-employment and property income, not simply total salary or business profit. A doctor with mixed PAYE and locum income should not use their combined headline earnings as a shortcut.
An invoice app is not automatically a complete MTD submission solution. Confirm whether the chosen system, an integration or the accountant's software handles the required records and submissions. Make responsibilities explicit.
Track expenses without assuming everything is deductible
Keep receipts and a clear explanation of business purpose. Separate direct session costs from general household or personal expenditure. An app category labelled expense does not establish tax deductibility.
Mileage tools can assist record-keeping, but the treatment of travel depends on the circumstances. Do not assume that every journey to every workplace qualifies in the same way.
Use regular reconciliation rather than a year-end reconstruction. The administrative benefit is not merely a tidier tax return; it also improves your understanding of which work is worthwhile after costs.
Keep a compact clinical preparation pack
For each practice, record the approved access process, local escalation contacts, referral routes, results handling and responsibilities after the session. Keep this information secure and current without storing unnecessary patient material.
Check access before the first clinic wherever possible. Knowing the clinical system, appointment template and process for requesting support can prevent avoidable disruption once patients are waiting.
A national reference resource cannot replace local induction. The correct pathway for an investigation or referral may depend on the organisation and area, even when the underlying clinical principles are familiar.
Use AI and clinical reference tools deliberately
Ask iatroX can support exploration of clinical questions and sources. Check the original material, date, jurisdiction and fit with local practice. Do not treat a fluent answer as sufficient verification.
The iatroX Knowledge Centre provides another route to clinical reference material. These resources sit alongside approved local systems rather than replace them.
Do not enter identifiable patient information into a tool unless the use is authorised and appropriate. A useful clinical question can often be framed without including personal details. The need for convenience does not remove information-governance responsibilities.
Make CPD part of the routine
Locum work across several settings can reveal recurring learning needs. Keep an appropriately anonymised record of questions, source review, changes in understanding and reflection rather than waiting until appraisal to reconstruct the year.
iatroX CPD can support that process, but a generated record does not automatically establish accreditation or acceptance for every professional scheme. Review what the applicable requirements actually recognise.
Protect time for learning. A diary that fills every available gap with work may look efficient while leaving no space to maintain competence or review difficult experiences.
Audit subscriptions every quarter
List each tool, its cost, the task it performs and the information it stores. Remove duplication where possible and confirm that important records can be exported before cancelling.
A minimal setup might be one work-discovery route, one administrative system, approved local clinical access and a small set of learning resources. The exact products depend on the way you work.
The test is straightforward: fewer missed obligations, clearer decisions and more reliable work. A good toolkit should reduce uncertainty in the locum's professional life, not create another set of accounts that require constant attention.
Related reading: Lantum vs NASGP LocumDeck and limited companies, PAYE and IR35.
FAQs
Which is best for locum invoices: LocumDeck, Locum Organiser or My Locum Manager?
Compare the complete workflow you need, including corrections, approvals, reconciliation and export. The best choice may be the system already handling your bookings, provided it meets the administrative requirements.
Does an app producing pension forms make all my work pensionable?
No. Eligibility depends on the engagement and scheme rules. Check official guidance and the current forms before submission, especially where company income or mixed working arrangements are involved.
Is Making Tax Digital still a future issue for GP locums?
Not for everyone. The first Income Tax cohort started on 6 April 2026. Check qualifying income and exemptions through HMRC rather than assuming that all doctors start on the same date.
Connect clinical questions with ongoing professional development through iatroX CPD.