What do you need to become a personal trainer?
This guide follows the order things happen: qualification, how you will be paid, insurance, budget, then your first clients. Two companion guides take it further: how to get personal training clients and how to set your personal trainer rates.
A word on what this page is not: it is not legal advice for every situation. Where a rule comes from an official source, we link to it, and we tell you where to check the details that change over time.
Which qualification do you need?
In the UK, “personal trainer” is not a title protected by law in the way it is in France. In practice, though, you will not get far without a recognised qualification: gyms will not let you train their members, insurers will not cover you, and clients increasingly check.
Questions to ask before you pay for a course
- Is the qualification nationally recognised, and at what level?
- Does it cover one-to-one personal training, or only gym instruction and group classes?
- How much of it is practical, assessed in a real gym with real people?
- Will an insurer accept it for professional liability cover? Ask the insurer, not the training provider.
- Does it include working with specific groups (older adults, pre- and post-natal), or is that a separate course?
- What first aid training is included, and when does it need renewing?
Planning to coach in France?
French law (article L212-1 of the Code du sport) states that only holders of a diploma, professional title or certificate that guarantees their competence in the safety of participants, and that is registered in the national register of professional certifications, may teach, lead or supervise a physical or sporting activity for pay. The list of accepted qualifications is in an annex to the Code du sport. A foreign qualification must first be recognised by the French Ministry of Sport.
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Coaching in France: the professional card
If you coach in France, even part-time or seasonally, the French Ministry of Sport requires every educator paid to teach, lead, supervise or train to declare themselves (article L212-11 of the Code du sport). The steps:
- Declare online on the ministry’s educator declaration website, or send the paper form to the State office of your département, with your qualifications.
- The administration checks that your diploma is genuine and that nothing bars you from supervising sport (a good-character check).
- You receive a professional card valid for 5 years, listing what you are qualified to supervise and any limits. It carries a QR code anyone can scan to check you.
- Renew it every 5 years if you keep coaching for pay.
The penalty for coaching for pay without the required qualification is up to one year in prison and a €15,000 fine (article L212-8), and the same applies to an employer who hires an unqualified coach. In any French venue where sport is practised, a copy of each coach’s card and diploma must be displayed where everyone can see it; see our guide to mandatory gym notices.
Employed, self-employed, or both?
| Employed by a gym | Self-employed | Both | |
|---|---|---|---|
| Income | Fixed wage | Depends on your clients | A base plus your own clients |
| Finding clients | The gym does it | Your job | Shared |
| Freedom over hours | Low | Full | Medium |
| Admin | Little | Records, tax return, insurance | Both |
Many trainers start with both: a few employed hours for security while a personal client list grows. Check your employment contract first: some gyms restrict working with their members privately.
Going self-employed in the UK
GOV.UK explains that you can start trading straight away as a sole trader. You must register for Self Assessment if you earn more than £1,000 from self-employment in a tax year (6 April to 5 April), keep records from the start, and send a tax return each year. VAT registration becomes compulsory if your taxable turnover over the last 12 months goes over £90,000.
Taking on staff
If you grow and employ someone, employers’ liability insurance becomes a legal duty in Great Britain, with at least £5 million of cover. GOV.UK states you can be fined £2,500 for every day you are not properly insured, and that you must display the certificate where staff can see it.
Insurance: what to cover
You work with people’s bodies: a strain, a fall or a broken piece of kit raises the question of who is responsible. Professional liability and public liability insurance are not optional in practice: gyms that host freelance trainers, corporate clients and many private clients will ask for proof before the first session.
- Are outdoor sessions (park, beach, woods) covered?
- And sessions in a client’s home?
- Is there a maximum group size for classes?
- Is your own kit covered if it breaks or is stolen?
- Are online sessions included?
- What is the excess on a claim?
How much does it cost to start as a freelance trainer?
A mobile or outdoor trainer can start lean. Here is an example first-year budget for a trainer working alone, in clients’ homes and parks. Replace every figure with your own quotes: these are examples, not averages.
| Item | Example | Note |
|---|---|---|
| Kit (bands, dumbbells, mats, kettlebells) | £550 | One-off, top up as needed |
| Liability insurance | £150 a year | Depends on activities and insurer |
| Phone | £200 a year | Part can be business use |
| Travel | £1,000 a year | The cost people forget: track your mileage |
| Getting found online (website, bookings, reviews) | £300 a year | Free Google profile plus website and online booking |
| Clothing and shoes | £200 a year | Your image matters |
| Example total | £2,400 | about £200 a month |
At £40 a session, you need five sessions a month just to cover those costs, before tax and before paying yourself. That is why your rate should be calculated, not guessed: our guide to personal trainer rates shows the method step by step.
Opening your own studio changes everything: rent, fit-out, heavy equipment, and premises insurance. Most trainers are better off building a regular client base first.
Finding your first clients
Most people look for a trainer near them, on Google or through friends. As soon as you are qualified and insured:
- Create your Google Business Profile with your service area, hours and photos of sessions (with written consent from anyone recognisable). Our Google Business Profile guide covers every field.
- Ask every happy early client for a review right after a good session. Ten recent reviews say more than any slogan.
- Offer online booking: a motivated client at 10 pm wants to lock in a slot now, not wait for a call back.
- Tell your own network: a free taster session for friends of friends. If they enjoyed it, ask for a review, with nothing in return: Google does not allow incentives for reviews.
Hi, I am launching my personal training business in [town / area]. Strength, fitness, getting ready for a race: I come to you, or we train in the park. Free taster session until [date]. Book online: [link]. Feel free to pass this on!
Checklist before your first paid session
- Qualification completed and accepted by your insurer
- Professional and public liability insurance in place, venues checked
- Registered with HMRC for Self Assessment when you pass £1,000 of income (UK), or professional card received (France)
- Health questionnaire for new clients, stored confidentially
- Prices set and published (website, Google profile, client welcome sheet)
- Cancellation terms in writing
- Google Business Profile live with your service area
- Online booking and reminders set up
- First aid kit and a charged phone at every session
For cancellation terms, our guide to writing a cancellation policy gives wording you can adapt.
The steps at a glance
The steps to start working as a personal trainer, in the UK or in France.
- Get a recognised qualification. Choose a course gyms and insurers accept; in France, check the diploma is listed in the Code du sport.
- Choose how you will work. Employed, self-employed or both; register with HMRC when you pass £1,000 of self-employed income.
- Get insured. Take out professional and public liability cover for every place you will train clients.
- Declare yourself in France if needed. Make the educator declaration to receive a professional card valid for 5 years.
- Set your rates. Work out a price that covers costs, tax, travel and unpaid time.
- Get found. Create your Google profile, collect reviews and open online booking.
This guide for your trade
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Go further
Sources
The rules quoted in this guide come from these official pages, checked on October 28, 2026.