Paying Trainers in a Fitness Studio — Models, Contracts, and Poland's 2026 PIP Reform

The last day of the month. You open a spreadsheet, with the class calendar and front-desk notes beside it. On the docket: payroll for four trainers covering a few hundred sessions. Each one has a different rate, a different working arrangement, and different bonuses. One cancelled three sessions, another picked up substitutions that aren't in the schedule. Two hours later, you're still not sure the numbers add up.

Paying your trainers is one of the most time-consuming duties a studio owner has. In 2026, a legal issue landed on top of it: Poland's labour-inspection (PIP) reform, which lets an inspector reclassify a B2B contract as an employment contract by administrative decision. In this guide you'll find the working models with 2026 numbers, real costs, a contract checklist, and a matter-of-fact walkthrough of the new rules.

Ways to work with a trainer — your options

The Polish fitness market has settled on a handful of compensation models. Each one distributes costs, legal risk, and control over the client differently. Before you choose, answer one question: who sells the session — you or the trainer? That determines which model will be fair and profitable. Below, all of them from the perspective of your budget.

Employment contract. Poland's minimum wage in 2026 is PLN 4,806 gross per month. Your total cost at that salary is PLN 5,790.28, and with a 1.5% PPK pension contribution — PLN 5,862.37. In practice, a salaried club trainer earns PLN 6,000–8,000 gross. The median for the profession, according to the Sedlak & Sedlak salary survey, is PLN 8,330 gross, with half of all trainers landing between PLN 6,250 and 12,420. Upsides for you: full control over the schedule, a stable team, and clients who belong to the studio. Downsides: the highest total cost, paid leave, sick leave, and little flexibility.

Contract of mandate (umowa zlecenie). The minimum hourly rate in 2026 is PLN 31.40 gross — one rate for the entire year, with no July increase. The hourly conversion applies even if you agreed on a different basis, say per session. The contractor cannot waive the minimum rate, and underpaying it carries a fine of PLN 1,000 to 30,000. When the mandate contract is the trainer's only insurance title, you pay contributions much like with employment — roughly 20% on top of gross. The exception is a student under 26: you pay no ZUS or health contributions for them, and they pay no income tax. Gross equals take-home, which makes this the cheapest legal form of cooperation. One condition: the student cannot also be your salaried employee.

B2B with commission. The trainer runs their own business and invoices you for the sessions delivered. The market standard: the trainer keeps 30–50% of the personal-training price, with some sources citing 40–60%. The studio keeps the rest. On a PLN 150 session, the trainer gets PLN 60–75. They cover their own contributions — in 2026, full ZUS for a business owner is PLN 1,926.77, plus a minimum health contribution of PLN 432.54 per month. The health contribution jumped by about 37% after the preferential base of 75% of the minimum wage was scrapped. In total, a trainer on the tax scale or flat tax pays at least PLN 2,359.30 a month — expect them to factor that into commission negotiations. Upsides: you pay only for work actually delivered, with no overheads. Downsides: the reclassification risk we cover below, and weaker control over the schedule.

Trainer pass. The model in reverse: the trainer pays you for access to the floor and settles directly with their own clients. You take no commission on their sessions. Market rates in 2026 run PLN 700–2,000 net per month, depending on the city and the venue's reputation. At the big chains, the range is wider (2025 data): from PLN 300 at RMG GYM, through PLN 800 at CityFit, up to PLN 950–1,100 at Fitness Platinium. Upside: predictable revenue with zero operational work on your side. Downside: the client belongs to the trainer, not the studio.

Hybrid. Combines a fixed base with commission on sessions. It works well when a trainer runs both group classes and personal training. For group classes, the market pays an hourly rate: PLN 40–70 for beginner instructors and PLN 80–150 for experienced ones. Some clubs tie the rate to attendance — a pay table based on head count motivates the instructor to build up their classes. For personal training, you pay commission on completed sessions.

What a trainer really costs you — the 2026 math

The figure on the contract is only the beginning. Compare the total costs of each form:

• Employment at minimum wage: PLN 4,806 gross, your cost PLN 5,790.28 per month (without PPK)
• Mandate contract as the sole insurance title: contribution overhead similar to employment, about 20% on top of gross
• Mandate contract with a student under 26: cost equals the gross amount, zero contributions
• B2B: cost equals the invoice; the trainer covers ZUS and health contributions (min. PLN 2,359.30 per month on the tax scale or flat tax)
• Trainer pass: zero cost on your side, revenue of PLN 700–2,000 net per month

A salaried trainer "at minimum wage" costs the studio PLN 5,790.28 a month — about 20.5% more than what they see on the contract. A student on a mandate contract costs exactly their gross.

How much can you charge per session? The average price of a personal-training session in Poland in 2026 is PLN 140–160, with PLN 100–200 the most common range. In Warsaw, Kraków, and Wrocław it averages PLN 120–180; in smaller cities, PLN 50–150.

An example (editorial illustration). A trainer delivers 60 personal-training sessions a month at PLN 150 — dead centre of the market. Revenue: PLN 9,000. At a 40% commission you pay the trainer PLN 3,600, and PLN 5,400 stays in the studio for rent, equipment, front desk, and marketing. The same volume on an employment contract at PLN 6,000 gross costs over PLN 7,200, applying the roughly 20.5% overhead seen at minimum wage.

A market benchmark: with a PLN 1,500 trainer pass and a PLN 150 session price, the trainer needs 10 sessions a month just to cover the flat fee. That simple math tells you what pass level your location can realistically support.

Your trainer contract — what it must cover

A good contract settles disputes before they happen. Whatever the model, make sure it covers these points:

• Form of cooperation and scope of duties — who sells the session and whose client it is
• Rates and the basis for calculation — completed sessions or sold packages; how you treat no-shows and cancellations
• The trainer's liability insurance and responsibility for client injuries
• A non-compete and a clause on poaching clients after the cooperation ends
• Confidentiality and GDPR — client data stays with the studio
• Notice period, plus the procedure for payroll corrections and disputes

The calculation basis breeds the most disputes. State it plainly: you pay for sessions delivered, not scheduled. Define what happens with no-shows — if the client paid for the session despite not turning up, it's fair to share that money with the trainer. Also set a deadline for the trainer to sign off on the monthly statement, say three business days after month close.

With B2B, the wording has to match reality. If the contract declares independence but the trainer works a rigid schedule under your direction, the paper alone won't protect you. That matters enormously given the labour inspectorate's new powers. It's also worth archiving the monthly statements. A history of commissions calculated on completed sessions demonstrates an outcome-based, not employment-like, relationship — and it keeps any disputes over amounts tidy.

The 2026 PIP reform — facts, deadlines, transition period

On 8 July 2026, an amendment to Poland's National Labour Inspectorate (PIP) Act came into force (Journal of Laws 2026, item 473). A district labour inspector can now reclassify a B2B or mandate contract as an employment contract by administrative decision, with no court proceedings. The procedure has two steps. First, the inspector issues an order to conclude an employment contract or remedy the violations. Only if that order goes unfulfilled do they issue a decision declaring that an employment relationship exists. You can appeal the decision to the labour court within one month of delivery, filing through the inspector. The decision becomes enforceable once the appeal window passes or after a final judgment. It takes effect across labour law, taxes, and ZUS.

The penalties went up too. The fine for replacing an employment contract with a civil-law contract now runs up to PLN 60,000, and up to PLN 90,000 for repeat offenders. An on-the-spot fine during an inspection can reach PLN 5,000. The act is in force, even though the President has referred it to the Constitutional Tribunal for post-enactment review.

A transition period runs until 8 July 2027, extended during legislative work from 6 to 12 months. If you voluntarily convert a civil-law contract into an employment contract within that window, you face no petty-offence liability for past violations — meaning no fines of up to PLN 60,000 or 90,000. One important caveat: the amnesty does not cover back ZUS contributions, back income tax, or employee claims. ZUS and the tax office act independently and can reach back up to 5 years.

What does this mean for your studio? Not every B2B arrangement is at risk. The risk grows when the cooperation looks like a job: an imposed schedule, work under your direction, a single client, equipment and customers supplied entirely by the studio. A trainer who sets their own hours, brings their own clients, and bears business risk is in a much stronger position. Review your contracts through that lens and make a deliberate decision — while the transition window is still open.

Making it work operationally — calculation, month close, export

Choosing the model is one thing. The other is the monthly mechanics: collect the completed sessions, filter out no-shows and cancellations, apply the right rates, add the bonuses. Then get the trainer's sign-off and hand the data to your accountant on time. With one trainer, a spreadsheet will do. With three — each on different rates for personal training, group classes, and 1:1 sessions at an EMS studio — the spreadsheet starts producing errors and arguments. The classic slip-ups: an old rate applied after a raise, a duplicated substitution, a bonus calculated on scheduled rather than completed classes. Every one of them means an awkward conversation with the trainer and a correction at the accountant's.

That's why in EloByku Studios the trainer payroll module calculates pay automatically from completed sessions. You configure rates per class type, commissions, and bonuses once. The system skips cancelled sessions and no-shows according to your rules. At month end, you close the period, generate a per-trainer report, and export the data for your accountant. You also gain an archive of past statements — useful if an inspection ever comes. The cost: PLN 350 net per month per studio, plus PLN 5 per trainer and PLN 1 per client. You'll find the details in the pricing.

FAQ — studio owners' most common questions

**What percentage does a studio take from a personal trainer?** The market standard gives the trainer 30–50% of the session price; some clubs go up to 60%. The studio keeps the rest, typically 50–70%.

**Can the labour inspectorate reclassify a trainer's B2B contract as employment?** Yes. Since 8 July 2026, a district labour inspector in Poland can do so by administrative decision, after first ordering the violations to be remedied. You can appeal to the labour court within one month.

**Does a personal trainer have to run their own business?** No. You can hire them on an employment or mandate contract. A registered business is only needed for the B2B and trainer-pass models.

**How much does a trainer pass cost?** The market range is PLN 700–2,000 net per month. At the chains, from PLN 300 (RMG GYM) to PLN 950–1,100 (Fitness Platinium).

**Which pays off better: commission or a trainer pass?** From the studio's perspective, the pass delivers guaranteed revenue but hands the client to the trainer. Commission gives you a share of turnover and control over the client relationship. A benchmark: a PLN 1,500 pass equals the commission on roughly 10 sessions at PLN 150.

Summary

Match the compensation model to whoever sells the session. If the studio brings in the clients — go with employment, a mandate contract, or commission, and protect your client base with the right clauses. If the trainer arrives with their own clients — a trainer pass is often fairer for both sides. Run the total-cost numbers, review your contracts against the PIP reform, and make use of the transition period running until 8 July 2027. And hand the mechanics of calculation, month close, and accountant reports over to a system — the trainer payroll module in EloByku Studios will do it for you.

This article is for information purposes only and does not constitute legal or tax advice. Legal status as of 27 August 2026. Consult a lawyer or tax advisor before deciding on the form of cooperation with your trainers.