Costs that may be allowable
These are common examples. A cost is allowable only if it is wholly and exclusively for your business, so check GOV.UK guidance on expenses if you are self-employed, or ask an accountant.
- Training equipment may be allowable
- Insurance may be allowable
- Qualification renewals and CPD may be allowable
- Venue or gym hire may be allowable
- Booking software may be allowable
- Travel between clients may be allowable
Common mistakes
- Combining personal equipment purchases with items used for client sessions.
- Not keeping qualification renewal and continuing professional development records together.
- Leaving insurance renewal paperwork apart from the current policy details.
- Mixing client bookings and payment records with personal appointments.
Records worth keeping for this trade
- Qualification certificates, renewal documents and continuing professional development records.
- Insurance policy details and renewal paperwork.
- Client bookings, invoices and payment records.
- Travel log with date, destination, purpose and distance.
Which records help a personal trainer track a client session? Keep the booking and payment record together, retain qualification and insurance renewal documents, and record journeys between clients with date, destination, purpose and distance.
Keep records as you go
Keep receipts, invoices and mileage details as you work, and record business and personal use separately where needed. Organised records make it easier to prepare your Self Assessment return.
Keep your figures together.
This is a general sole-trader tracker, not a spreadsheet made specifically for personal trainers.
UK Self Assessment Spreadsheet 2026/27Not tax advice. Not affiliated with, or endorsed by, HMRC.