Tax for personal trainers and fitness coaches

Gym floor, bootcamps, home visits or online coaching — most personal trainers are self-employed, and claiming your costs properly makes a real difference to your bill.

Whether you rent space in a gym, train clients in the park or coach online, you're usually self-employed. Once your earnings pass £1,000 in the year, you'll file a return and pay tax on your profit after costs.

How much tax will you actually pay?

You're taxed on your profit — your income after allowable costs — not on everything you take. For the 2026/27 tax year:

• The first £12,570 is tax-free (your personal allowance).
• 20% income tax on profit between £12,570 and £50,270.
• 6% Class 4 National Insurance on that same slice — Class 2 is treated as paid automatically.
• Above £50,270 it steps up to 40% tax and 2% National Insurance.

A worked example. Say you take £25,000 and, after gym rent, kit and insurance, your profit is £19,000 — your only income. Nothing on the first £12,570, then 20% tax on the £6,430 above it (£1,286) and 6% Class 4 NI (£386) — about £1,672 for the year.

If you also have an employed job, that salary usually uses your personal allowance first, so more of your self-employed profit is taxed — we work out both sides together. Our how-much-tax guide has the full breakdown.

Costs you can usually claim

• Gym rent or your split — the rent or percentage you pay the gym to train there.
• Equipment — weights, mats, bands, pads and heart-rate tech — and replacing it.
• Insurance — fitness/professional and public liability cover.
• Qualifications and CPD that keep your existing certifications current.
• Music licence (PPL PRS) if you play music in sessions.
• Branded clothing and kit with your logo (not everyday gymwear).
• Coaching and booking software, your website and marketing.
• Travel to clients if you're mobile — 55p per mile for the first 10,000 miles — plus your phone.

How to file, step by step

• 1. Register with HMRC for Self Assessment by 5 October after the tax year you started. You'll get a UTR (Unique Taxpayer Reference). Here's how →
• 2. Keep records through the year — what you earned, and receipts for what you spent.
• 3. File your return online by 31 January (or on paper by 31 October). The dates that matter →
• 4. Pay what you owe by 31 January.

Making Tax Digital

Making Tax Digital is already here: since 6 April 2026 it applies if your gross self-employment and property income — your turnover, before expenses — was over £50,000. The threshold drops to £30,000 in April 2027 and £20,000 in April 2028. It means keeping digital records and sending HMRC a short update every quarter — 7 August, 7 November, 7 February and 7 May — on top of your year-end return. We keep it all in order and file it for you, so you can stay on the gym floor.

Common questions

Do personal trainers pay tax? Yes — most personal trainers are self-employed, so once you earn over £1,000 in a tax year you file a Self Assessment return and pay tax on your profit.

What can personal trainers claim as expenses? Gym rent or your split with the gym, equipment, fitness and public liability insurance, qualifications and CPD that maintain your skills, a music licence, branded clothing, coaching and booking apps, and travel to clients if you're mobile.

How much tax will I pay? No tax on the first £12,570, then 20% tax and 6% Class 4 National Insurance on profit above it. On £19,000 of profit that's about £1,672 for the year.

This guide is general information, not personal tax advice. Figures are for the 2026/27 tax year and can change at each Budget — always confirm the current numbers on GOV.UK or ask us to check your situation.