Built for UK locum GPs
Stop losing money to paperwork you hate
Track every session. Manage invoices. Export HMRC-ready tax reports and NHS pension forms. All in one app — core tracking is free.
Good morning, Doctor
Your locum activityHMRC mileage rate, auto-calculated
Income tracked by UK tax year for self-assessment
Pension forms generated with Pro
Replace Excel and scattered notes
What it does
Everything a locum needs. Nothing they don't.
Designed specifically for UK locum GPs — not a generic expense tracker with a stethoscope icon on it.
Session tracking
Log sessions in seconds — site, hours, fee, source. With Pro, import directly from Lantum, LocumDeck, and calendar feeds.
Mileage & expenses
Return mileage auto-calculated at 45p/mile. Parking, subscriptions, and other SA103S expenses tracked by quarter.
Invoices & payment tracking
Mark sessions as invoiced, awaiting payment, or paid. See outstanding amounts and chase overdue invoices with Pro.
HMRC tax export
Pro exports PDF and CSV covering gross income, mileage deductions, SA103S categories, and quarterly figures for self-assessment.
NHS pension Form A & B
Track pensionable pay per session and generate NHS pension forms following NHSBSA guidance.
Earnings analytics
Monthly and annual income charts, average hourly rate, and tax-year summaries — unlock with Pro.
Why is core tracking free?
LocumBook's essential tools — session logging, invoice tracking, and mileage — are free forever. Your session data and financial figures stay on your device by default, never sold or shared. Upgrade to Pro when you need PDF exports, analytics, NHS pension forms, and cloud sync.
How it works
Up and running in five minutes
Set up your profile
Enter your name, GMC number, home postcode, and invoice details once — then they are pre-filled everywhere.
Log a session
Tap +, choose the practice, enter hours and fee. With Pro, import shifts from Lantum, LocumDeck, or your calendar feed.
Track invoices
Mark sessions as invoiced, awaiting payment, or paid. See outstanding amounts on your dashboard.
Export for tax time
With Pro, export PDF and CSV summaries covering MTD quarters, SA103S categories, and mileage — ready for your accountant.
NHS Pension
The pension forms nobody enjoys — handled.
With Pro, LocumBook calculates your NHS pension figures from your session data, following NHSBSA Form A, Form B, and SOLO requirements.
Pensionable pay is calculated at the statutory 90% of your locum fee per NHSBSA guidance. England (PCSE) and Wales (LHB) jurisdictions supported.
NHS pension support
Form A · Form B · SOLO · Pro feature
- Pensionable pay calculated at 90% of fee per NHSBSA guidance
- Form B generated monthly when you record payment
- Employee contribution tiers from 5.2% to 12.5%
- Employer contribution (14.38% + 0.08% admin) auto-calculated
- Pre-filled PDF forms ready to submit to PCSE or LHB
- GMC number printed automatically from your profile
In the app
See LocumBook in action
A quick walkthrough of session logging, invoices, and tax-year tracking — built for UK locum GPs.
Designed for clarity on the go
A clean, focused interface so you can log a shift between patients, not after a long day of admin.
Sessions
Search, sort, and filter your locum history by tax year.
Invoices
Track paid, unpaid, and awaiting payment in one place.
Calendar
View shifts by month with UK tax-year awareness.
Tax export
HMRC-ready PDF summaries for self-assessment.
Pricing
Free forever. Pro when you need it.
Core session tracking, invoices, and mileage are free. Upgrade to Pro for exports, analytics, pension forms, and sync.
Free
£0
No subscription required
- Unlimited session logging
- Invoice list & payment tracking
- Mileage & expense logging
- Dashboard & calendar with UK tax year
- Encrypted local backup (.lbkbackup)
- App lock with biometrics
- Home-screen widgets
Pro
£3.99 /month
or £24.99/year · £79.99 lifetime
- Everything in Free
- PDF self-assessment export
- CSV & Excel data export
- NHS pension Form A & B
- Advanced earnings analytics
- Calendar import (Lantum, LocumDeck & more)
- Calendar export & subscribe
- Cloud backup & sync
- Custom invoice templates
- Payment chasing reminders
2 months free trial for new subscribers
Subscriptions are purchased in the app via the App Store or Google Play — not on this website. View full pricing details.
FAQ
Questions GPs actually ask
Is my financial data safe?
Will this replace my accountant?
I already use Lantum — does it work with that?
How does the NHS pension calculation work?
What is MTD and why does it matter?
I am a GP registrar doing some locum work — is this for me?
More answers in the full FAQ or user manual.
Your next session is in the morning.
Your paperwork should be sorted tonight.
Free on web, iOS, and Android. Takes five minutes to set up. Pro includes a 2 months free trial for new subscribers.
LocumBook is a record-keeping tool. It is not a substitute for professional tax or financial advice. Always verify figures with a qualified accountant before submitting to HMRC or NHSBSA.