Employee vs B2B contractor in Poland

Nadia was one email away from closing a hire that had dragged on for two months.

She runs a Swedish software house, and she had just found the senior she really wanted — a developer from Kraków who, in the technical interview, took her architecture apart and put it back together better than it was before. The team wanted him. She wanted him. One step remained: the form of the engagement.

And here the developer said something that sounded like a gift: “You don’t need to put me on an employment contract. I’ll invoice you — B2B, the way almost everyone in Polish IT works.”

Nadia was relieved. No Polish employment contract, no ZUS, no paperwork in a foreign country — simpler and cheaper. She was about to write “great, let’s draw up the contract” when a friend of hers, a Pole who runs a business there and to whom she had shown the details, cut in. He replied briefly: “Careful. If he works only for you, on your hours and under your direction, it isn’t real B2B. It’s employment in disguise — and from July 2026 the labour inspectorate has the tools to challenge it.”

Nadia wasn’t doing anything dishonest. She simply wanted to hire a good person by the simplest route. The snag is that in Polish IT the simplest route and the safest route aren’t always the same one — and the rules have just changed.

This story comes up at Certa Poland almost every week. Below: when B2B is fine, when it becomes a trap, and how Nadia worked out which side she was on — before she signed.

(Legal state: July 2026. This is general information, not legal or tax advice. The characters are illustrative examples. We confirm your case individually, in writing.)

The short answer: B2B can be fine, but not always — and the rules have just tightened

A B2B contract with a Polish IT specialist is legal and often sensible — but only when it describes a genuinely independent relationship between two businesses. If in practice it looks like employment (one client, set hours, work under direction) then, whatever the contract is called, there’s a risk it will be treated as an employment relationship.

From 8 July 2026 that risk is greater than before the reform. Under the amendment to the State Labour Inspectorate Act (the Act of 11 March 2026, Journal of Laws 2026, item 473), an inspector can establish the existence of an employment relationship by administrative decision — without bringing a court action, though the decision itself can be appealed to the labour court. For a foreign company the takeaway is simple: better to choose the right model from the start than to explain it away later.

Why “everyone in Polish IT is on B2B”

Nadia’s developer wasn’t making it up — in Poland’s IT sector self-employment (a sole proprietorship, “JDG”) is very common. The reason is mainly tax: someone running their own business can use more favourable tax treatment and lower social-security contributions than an employee. Many experienced developers choose this deliberately and genuinely run their own business — several clients, their own equipment, their own way of organising the work.

So the problem isn’t that B2B is “bad”. It’s that the same form is used for two different things: for a genuine relationship between independent businesses — or to disguise ordinary employment so both sides pay less. The 2026 reform targets the second.

Employee or B2B: what actually differs for you

Before you decide, it’s worth seeing what separates the two models from an employer’s perspective:

• Cost and charges — with employment you bear the contributions and payer obligations; with B2B the contractor handles their own tax and ZUS settlements. But “cheaper” on B2B can be illusory if the contract is really employment (see below).
• Direction and organisation — an employee can be subject to the company’s direction and control (hours, place, instructions). An independent contractor decides for themselves how and when they work. That’s one of the key tests.
• Copyright / IP — an underrated difference: for computer programs created by an employee in the course of their duties, the employer generally acquires the economic copyright by operation of law (Article 74(3) of the Copyright Act), whereas with B2B the rights have to be expressly assigned in the contract (Articles 41 and 53). Without that assignment, you can be paying for code whose rights you don’t hold.
• Benefits and protection — employment means paid leave, sick pay and protection on dismissal. B2B gives none of that — an advantage for a genuine business, a problem if it was really employment.
• Team stability — an employee is tied to the company; a contractor is an independent supplier of services.

The 2026 labour-inspectorate reform: where the risk lies

The heart of it is simple: what counts is the substance of the relationship, not the label on the contract. The Polish Labour Code (Article 22 § 1) says that if work is performed personally, under direction, at a place and time set by the party engaging it, and for pay, then it is an employment relationship — even if the paper says “B2B”. Note: no single criterion settles it on its own — what matters is the overall picture, so such cases are assessed on all the facts, not on a single factor.

What the reform, in force from 8 July 2026, changes:

• A new power for the inspector — if a labour inspector finds that a B2B or civil-law contract in fact has the features of employment (Article 22 § 1 of the Labour Code), they can establish the existence of an employment relationship by administrative decision. This does not happen “with a single letter” or automatically: the decision follows a procedure, can be appealed to the labour court, and lodging the appeal suspends its enforcement.
• Higher fines — the amendment raises Labour Code fines (in part to as much as PLN 60,000–90,000, depending on the breach), and an inspector can impose an on-the-spot fine of up to PLN 5,000 (PLN 10,000 for a repeat offence).
• A window to put things right voluntarily — a company that, within 12 months of the reform taking effect, brings the relationship into line with the law of its own accord is generally shielded from liability for the earlier breach. That’s a real chance to tidy the matter up calmly, before an inspector does.
• A way to get certainty — a company can apply for an individual interpretation as to the correct form of employment; such an interpretation is binding on the labour-inspectorate bodies for as long as the facts don’t change.

For Nadia, having the relationship reclassified as employment would mean her “simpler and cheaper” contract becomes an employment relationship — with contribution and tax consequences, and in extreme cases liability under the Fiscal Penal Code (KKS) for the company and the people running it.

Two things are worth adding:

• A Swedish head office is not a shield. The fact that the developer works with a foreign company does not, by itself, disapply Poland’s mandatory rules — work performed in Poland is governed by them (the Rome I Regulation), regardless of which law you write into the contract.
• Not every contractor is a time bomb. One collaborator is a different scale from fifty people on B2B in a single open-plan office. But Nadia’s situation — one client, her hours, her team — was worth checking.

That’s exactly the scenario she wanted to avoid.

When B2B is safe, and when it’s risky

A simplified map — the more on the left, the calmer; the more on the right, the greater the risk:

Usually fine:

• the specialist has several clients, not just you,
• decides for themselves when and how they work,
• uses their own equipment and bears their own business risk,
• is paid for a result or a project, not simply for putting in the hours.

Getting risky:

• you are their only client,
• they work the hours you set,
• they’re part of the team and take instructions like an employee,
• the arrangement has run for a long time and looks identical to the employment of the colleagues beside them.

Nadia’s situation — one client (her), her hours, her team — sat firmly on the right. The honest answer wasn’t “how do we cleverly name the contract”, but “this should probably be employment”. And the good news is that this developer, too, can be employed legally in Poland — without setting up your own company.

What to check before you sign

• Does the specialist genuinely run an independent business (several clients, own tools, own risk)?
• Will the relationship be based on subordination and fixed hours — or on independently delivering tasks?
• How will you assign the rights to the code (IP)?
• At this scope, wouldn’t employment be safer from the outset — and do you even need a Polish company for it (not always)?

Have a developer in Poland on B2B and not sure it’s safe?

Like Nadia — before you sign, it’s worth checking whether it’s real B2B or employment in disguise, which from July 2026 an inspector can formally challenge. Book a free assessment — we’ll assess your case and show you the safe route, including employing the specialist legally in Poland without setting up your own company (this isn’t an EOR — you remain the employer).

Book a free assessment →

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Related:

• Hire an employee in Poland without your own entity
• Monthly payroll in Poland for a foreign employer
• Social-security (ZUS) obligations of a foreign employer

This page is general information about a service, not legal or tax advice. Certa confirms scope and pricing in writing after assessing the specific case. The specifics of your case are confirmed case by case, with licensed legal and tax advisers where the law requires it.