Allowable expenses, clinic and mobile costs, professional insurance, mileage, VAT and MTD explained for UK self-employed sports therapists.
The tax picture for a self-employed sports therapist looks nothing like that of a desk-based freelancer. Your costs are physical and constant: tape and oils run out, towels need laundering, the treatment couch wears, the car eats miles between mobile clients, and professional insurance and registration are non-negotiable before you can lay hands on anyone. Income, meanwhile, is a stream of small treatment fees, the odd clinic or sports-club contract, and sometimes a part-time PAYE shift at a gym or physio practice.
This guide is built around how sports therapists actually work, whether you run a clinic room, treat from home, travel to clients pitchside and at their homes, or do all three. Get into the habit of logging each treatment fee and each business mile as they happen, and the annual Self Assessment becomes a tidy summary rather than a shoebox reconstruction.
As a sole trader you pay Income Tax on profit, which is your treatment income minus allowable expenses. For 2025/26 the personal allowance covers the first GBP 12,570, then you pay 20% to GBP 50,270, 40% to GBP 125,140 and 45% above, with the personal allowance tapering away between GBP 100,000 and GBP 125,140 to create an effective 60% band. Class 4 National Insurance is 6% on profit between GBP 12,570 and GBP 50,270 and 2% above, with Class 2 NIC settled through Self Assessment.
Scottish therapists pay Scottish Income Tax on their profit through six bands (19%, 20%, 21%, 42%, 45% and a 48% top rate) and carry an S-prefixed tax code, while National Insurance stays UK-wide. Welsh therapists have a C-coded tax code at rates currently matching the rest of the UK. If you also work a PAYE shift at a gym or clinic and your code looks wrong, run it through the tax code checker so your employment isn't quietly using up an allowance you also need against your self-employment.
Plenty of therapists begin by treating a handful of clients around a gym job or a physiotherapy assistant role. The GBP 1,000 trading allowance is built for exactly that. If your gross self-employed therapy income across all sources is GBP 1,000 or less in a tax year, it is tax-free and you do not need to register for Self Assessment for it. Cross GBP 1,000 and you must register and report the full amount. Our overview of side-hustle income explains where the line sits.
Once you are over the threshold you have a choice each year. You can deduct the flat GBP 1,000 trading allowance instead of working out actual expenses, or you can deduct your real allowable costs if they come to more than GBP 1,000. You cannot do both. Because this trade carries genuine running costs (tape, oils, insurance, room hire, mileage), most established therapists are far better off claiming actual expenses, while someone doing two or three treatments a month from a borrowed space might still come out ahead on the flat GBP 1,000.
An expense is allowable when incurred wholly and exclusively for the business. For this trade the list is dominated by equipment, consumables, the space you treat in, and the cost of getting to clients.
| Expense | What qualifies | Notes |
|---|---|---|
| Treatment equipment | Treatment couch, foam rollers, massage guns, resistance bands, ultrasound or TENS units | Larger items via the Annual Investment Allowance, usually claimed in full |
| Consumables | Kinesiology and rigid tape, massage oils, wax, gloves, couch roll, antibacterial wipes | Fully deductible; reorder little and often, so log every purchase |
| PPE and hygiene | Gloves, aprons, sanitiser, disposable couch covers | Allowable where used for treatments |
| Clinic or room hire | Rent of a treatment room, gym chair time, or pitchside space | Deductible; keep the hire invoices or chair-rent agreement |
| Home treatment space | Flat-rate working-from-home allowance, or a fair proportion of heat, light and broadband if you treat or admin from home | Choose the larger fair deduction |
| Laundry and uniform | Cleaning towels and branded uniform, polo shirts with your logo | Everyday gym kit is not allowable, branded workwear is |
| Insurance | Professional indemnity and public liability cover | Essential for this trade and fully deductible |
| Professional bodies | SST, CThA, FHT, or similar membership and registration | Allowable where relevant to your practice |
| CPD and training | Courses that develop your existing therapy skills, plus DBS checks | Training into a brand-new profession is not allowable |
| Mileage | Travel to mobile clients, clubs and gyms at HMRC simplified rates | Keep a journey log; commuting to a fixed base is not allowable |
| Software and admin | Online booking, card-reader fees, accountancy and bank charges | Fully deductible running costs |
For a mobile therapist the car is often the second-biggest deduction after equipment. The simplest method is HMRC's simplified mileage rate: 45p per mile for the first 10,000 business miles in the year, then 25p per mile after that. This single figure covers fuel, insurance, servicing, repairs and depreciation, so you do not also claim those separately. Keep a running log of each business journey with the date, where you went and the miles, because a credible mileage claim lives or dies on the record. Travel from home to a fixed clinic base is ordinary commuting and is not allowable; travel from your base out to clients, clubs and events is. If you'd rather claim a proportion of actual running costs instead of mileage, you can, but you must pick one method per vehicle and stick with it for that car. See how travel-heavy income stacks up using the sole trader tax calculator.
The private share of dual-use phone, broadband and car costs must be stripped out. Everyday gym clothing and trainers are not allowable even though you wear them to work, because they could be worn privately; only genuinely branded uniform qualifies. A gym membership you use to keep yourself fit is personal, not a business cost. And your own routine massage or treatment is private, not CPD.
Many therapists juggle several types of income, and they are not all taxed the same way. Use the multiple-income tax calculator to see how the streams sit on top of each other.
| Income type | How it is usually taxed | Watch out for |
|---|---|---|
| One-to-one treatment fees | Self-employment trading income | Record cash and card payments alike, gross of card fees |
| Sports-club or team retainer | Trading income, often monthly | Easy to forget the invoice that pays the following month |
| Group classes or workshops | Trading income | Hall hire and travel to the venue are deductible |
| Product sales (tape, oils, supports) | Trading income | Track stock bought versus sold |
| PAYE shift at a gym or clinic | Employment income, taxed at source | Your tax code may already use your personal allowance |
| Rent from a chair or room you sub-let | Property or trading income depending on setup | Keep it separate from treatment income |
The classic mistake is mixing a PAYE gym wage with the self-employed trade. If a part-time job already uses your GBP 12,570 personal allowance, every pound of therapy profit is taxed from the basic rate up, so set money aside accordingly rather than assuming the first slice is tax-free.
The therapist's enemy is the day that fills with back-to-back clients and ends with three cash payments and a card-reader total no one wrote down. Build a frictionless habit: take card payments through one reader so the takings reconcile automatically, log cash the moment it's handed over, photograph receipts for tape and oils at the till, and update your mileage log in the car before you pull away. Under the accruals basis a treatment given in March but paid in April still belongs to the earlier year, so record income when it's earned, not just when it lands. Therapists handling client health information should also keep treatment notes secure and separate from their financial records.
Take a therapist who treats from a hired clinic room two days a week and travels to clients and a local football club the rest of the time, with takings of GBP 34,000 for the year.
Income: GBP 34,000 (clinic-room treatments GBP 19,000, mobile clients GBP 11,000, club retainer GBP 4,000)
Allowable expenses:
Taxable profit: GBP 34,000 minus GBP 9,900 = GBP 24,100
Income Tax: GBP 24,100 minus GBP 12,570 = GBP 11,530 at 20% = GBP 2,306
Class 4 NIC: GBP 11,530 at 6% = GBP 692
Total tax and NIC: roughly GBP 2,998 for the year, plus Class 2 NIC settled through Self Assessment. The mileage and room-hire deductions alone knock the bill down substantially, which is exactly why a mobile therapist who skips the journey log overpays. Run your own figures through the sole trader tax calculator to check what you should be setting aside.
For a sports therapist the deductions are physical and constant: the tape, the oils, the room and the miles. Capture them as they happen and you keep the tax bill honest, because the expenses you forget are money you simply hand over.
You must register for VAT once taxable turnover exceeds GBP 90,000 in any rolling 12-month period, which most solo therapists never approach. Be aware that sports therapy and sports massage are generally standard-rated at 20%, rather than exempt, because the medical-care VAT exemption is narrow and aimed at registered healthcare professionals providing supervised treatment. So if you register you must add 20% to fees that mostly go to individual clients who cannot reclaim it, which simply makes you dearer. Where registration can creep up on you is a growing slate of club, team or corporate contracts; keep an eye on the rolling 12-month total so a strong year doesn't tip you over without warning.
Making Tax Digital for Income Tax Self Assessment replaces the once-a-year return with quarterly digital submissions and a year-end finalisation. The thresholds are based on gross income, not profit:
For a busy therapist this is mostly a change of habit. Instead of pulling a year of treatment fees together each January, you record each payment and each business mile digitally as it happens and send HMRC a quarterly summary. The upside is that the steady drip of small fees and mileage that makes therapy returns fiddly becomes far easier to manage when it's captured continuously rather than reconstructed. Our guide to MTD for sole traders walks through what the quarterly rhythm looks like in practice.
Not registering once over GBP 1,000. The trading allowance is a threshold, not a free pass. Cross it and you must register for Self Assessment, even if therapy is a sideline around a gym job.
No mileage log. A mobile therapist who can't evidence business miles loses one of the largest deductions in the trade. Update the log in the car, every trip.
Recording takings net of card fees. Report the gross treatment fee and deduct the card-reader charge as an expense, so your income matches the payment-provider records.
Forgetting insurance, membership and CPD. These recurring professional costs are fully allowable and routinely left off because they're paid once a year and easy to overlook.
Assuming a PAYE gym wage covers the allowance. If a part-time job already uses your personal allowance, your therapy profit is taxed from the basic rate up, so set aside more than you expect.
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