A Warsaw-based technology company received a formal inspection notice from the State Labour Inspectorate (Państwowa Inspekcja Pracy, PIP) in early 2026. The notice targeted twelve contractors working under B2B service agreements. Each contractor had a single client – the company itself – and worked fixed hours on company premises. PIP inspectors arrived with broad enforcement powers that took the company's management by surprise.

Under Polish labour law, the State Labour Inspectorate holds authority to reclassify B2B arrangements as employment relationships when the factual conditions of work resemble those of an employment contract. A reclassification finding triggers back-payment of social security contributions, holiday pay, and overtime – often covering three to five years. The financial exposure can exceed PLN 500,000 for a single contractor relationship.

This case study traces the background of the inspection, the legal strategy we deployed, the process before PIP, and the lessons that apply to any company relying on B2B contractor models in Poland today.

What made the B2B arrangements vulnerable to reclassification?

The twelve contractors shared several features that PIP inspectors treat as reclassification indicators. They worked exclusively for one principal. They attended daily stand-up meetings alongside employees. They used company equipment and company email addresses. One contractor had worked under the same B2B agreement for four years without any break.

Polish labour law presumes the existence of an employment relationship when work is performed personally, under the direction of a principal, at a time and place set by that principal. Each of those three elements was present here. The National Court Register (Krajowy Rejestr Sądowy, KRS) records showed the contractors' companies were dormant except for this single-client revenue stream. That detail reinforced PIP's initial assessment.

Contractors themselves had signed agreements containing clauses about "independent judgment" and "freedom to subcontract." In practice, neither clause had ever been exercised. PIP inspectors are trained to look past contractual language and examine actual working conditions. The gap between the written terms and the daily reality was wide – and that gap became the core of the inspection file.

We secured a reversal of a preliminary reclassification finding affecting contractors worth over PLN 800,000 in projected back-contributions for a technology client in the Mazowieckie region (winter 2026). The outcome turned on a detailed factual rebuttal submitted within the 14-day response window that PIP allows after issuing its preliminary findings.

How did PIP exercise its enforcement powers in 2026?

PIP's 2026 enforcement powers are broader than many businesses realise. Inspectors may enter premises without prior notice, interview workers and managers separately, and demand access to payroll records, email correspondence, and project management systems. Failure to cooperate within 7 days of a document request constitutes a separate administrative offence.

In this matter, PIP issued three instruments in sequence. First, a preliminary findings notice listing the factual indicators of employment. Second, a remediation order requiring the company to regularise the relationships within 30 days. Third – held in reserve but explicitly mentioned – a referral to the Social Insurance Institution (Zakład Ubezpieczeń Społecznych, ZUS) for a contribution audit covering the previous five years.

The ZUS referral threat is the most significant enforcement lever. A ZUS audit triggered by PIP findings runs independently of any appeal the company files against the PIP order. Two parallel proceedings can therefore run simultaneously. That dynamic creates pressure to settle quickly – which is exactly what PIP and ZUS rely on. Understanding that pressure is the first step to resisting it.

For companies with foreign nationals working under B2B arrangements, the exposure compounds. A reclassification finding may invalidate the legal basis for a work permit Poland authorities issued on the assumption of genuine self-employment. An EU Blue Card holder reclassified as an employee faces a different permit category entirely. Our employment lawyer Warsaw team flagged this cross-border dimension early in the matter.

What strategy reversed the preliminary finding?

We filed a written response to PIP's preliminary findings within the 14-day window. The response did three things. It challenged the factual record point by point. It introduced new evidence – specifically, emails showing that two contractors had declined project assignments in the previous year. And it reframed the legal test PIP had applied.

Polish labour law does not prohibit a contractor from working for a single client. It does not prohibit working on company premises or using company equipment. The test is whether the principal exercises continuous, binding direction over how the work is done – not merely what outcome is required. We documented that the contractors set their own methods, delivered against specifications, and invoiced on a results basis rather than an hourly rate.

We also obtained written statements from three contractors confirming they had turned down work from the company on specific dates. Those refusals were the clearest evidence of genuine independence. PIP withdrew the remediation order within 21 days of receiving our response. The ZUS referral was not made. The company restructured four of the twelve agreements prospectively to eliminate residual risk factors.

We obtained a favourable outcome protecting projected contribution liabilities exceeding PLN 1.2m for an IT services client in Lower Silesia (spring 2026). That matter involved a whistleblower Poland complaint that had triggered the PIP inspection in the first place – an increasingly common route for reclassification cases to begin.

What lessons apply to every company using B2B contractors?

Three structural lessons emerge from this matter. First, the written contract is the weakest part of a B2B defence. PIP inspectors spend little time on contractual clauses. They spend significant time on actual working patterns. Audit your practice, not your paperwork.

Second, the 14-day response window after a preliminary PIP finding is the decisive moment. Companies that treat it as a formality and submit a brief denial lose the opportunity to shape the factual record before the remediation order becomes final. A detailed, evidence-based rebuttal filed within that window changes the outcome in a meaningful proportion of cases.

Third, reclassification risk does not sit in isolation. A PIP finding can trigger a ZUS contribution audit, a KAS tax audit – for which guidance is available at our KAS audit preparation resource – and, for internationally mobile workers, permit complications. Companies relocating staff from abroad should review the reclassification dimension alongside permit strategy; our global mobility guide for Netherlands-to-Poland relocations addresses the overlap. Foreign principals operating in Poland should also review the employment compliance framework discussed in our UAE employer compliance guide.

What to prepare before a PIP inspection arrives:

  • A log of project refusals or scope changes initiated by each contractor
  • Invoices showing results-based billing rather than hourly attendance records
  • Evidence of contractors using their own tools or methods on at least some tasks
  • Copies of any multi-client engagements the contractors hold
  • A list of B2B relationships exceeding 24 months – these attract closer scrutiny

The specific facts of your company's contractor model determine whether reclassification risk is low, manageable, or urgent. A generic review produces generic conclusions. Your situation requires a specific assessment before PIP arrives – not after.

To discuss how PIP's 2026 enforcement powers apply to your B2B contractor arrangements, contact info@kordeckipartners.com.

Frequently asked questions

Q: Can a contractor working exclusively for one company still qualify as genuinely self-employed?

A: Yes. Single-client status is a reclassification indicator, not a conclusive finding. The decisive question is whether the principal exercises continuous, binding direction over how the work is performed. If the contractor retains genuine freedom over working methods, can decline assignments, and invoices on a results basis, single-client status alone does not establish an employment relationship under Polish labour law. Courts and PIP inspectors look at the totality of working conditions over the full duration of the arrangement.

Q: How far back can ZUS recover unpaid social security contributions after a reclassification?

A: Social security contribution claims under Polish law are subject to a five-year limitation period. A ZUS audit triggered by a PIP reclassification finding can therefore reach back five years from the date of the audit decision. For a contractor earning PLN 15,000 per month, the combined employer and employee contribution exposure over five years can exceed PLN 300,000 per person before interest and surcharges are added.

Q: Does filing an appeal against a PIP remediation order suspend the obligation to comply?

A: No. Under Polish administrative procedure, an appeal does not automatically suspend a PIP remediation order. The company must comply with the order within the deadline stated – typically 30 days – while the appeal proceeds separately. Failure to comply within the deadline is itself an administrative offence carrying fines of up to PLN 30,000. Applying for a stay of execution is a separate procedural step that must be specifically requested and justified.

KORDECKI & Partners is a law firm based in Warsaw and Krakow, advising business clients across 30 jurisdictions. Our team combines expertise in Polish and international law with a practical approach to employment law, B2B contractor compliance, and labour inspectorate proceedings. We work with Polish entrepreneurs, foreign investors, and in-house legal teams. To discuss your situation, contact info@kordeckipartners.com.

Disclaimer: This publication is provided for informational purposes only and does not constitute legal advice. The information herein should not be relied upon as a substitute for professional legal counsel tailored to your specific circumstances. KORDECKI & Partners assumes no liability for actions taken or not taken based on the contents of this material. For advice regarding your particular situation, please contact info@kordeckipartners.com.