A Luxembourg-based financial services group seconds three employees to its Warsaw subsidiary. Within weeks, Polish labour inspectors arrive unannounced. The company has no posted-worker notification on file, no local payroll register, and no whistleblower channel in place. The fines begin to accumulate before the HR team even understands what went wrong.

Luxembourg companies operating in Poland face a layered set of employment law obligations that differ materially from those at home. Polish labour law – anchored in the Kodeks pracy (Labour Code, KC) and the Posted Workers Act – requires advance notification, minimum-condition compliance, and internal reporting structures for any entity employing or seconding staff in Poland. Failure to meet these obligations triggers fines of up to PLN 30,000 per violation and, in repeated cases, personal liability for management.

This alert covers the three areas that most frequently catch Luxembourg employers off guard: posted-worker rules, work authorisation requirements, and the whistleblower protection framework that became mandatory in 2024. Each section identifies the threshold that triggers the obligation and the immediate action required.

What posting rules apply when Luxembourg companies send staff to Poland?

Polish posting law implements the EU Posted Workers Directive and imposes obligations from day one of the assignment. There is no de minimis period. A Luxembourg employer posting even a single employee to Poland for a single day must notify the National Labour Inspectorate (Państwowa Inspekcja Pracy, PIP) before the worker begins duties. The notification is filed electronically through the PIP portal and must include the worker's identity, assignment dates, and the Polish host entity's details.

Beyond notification, the posted worker must receive Polish minimum conditions. These include the statutory minimum wage – PLN 4,666 gross per month from January 2026 – plus overtime rules, rest periods, and health-and-safety standards. Luxembourg's generally higher wage levels do not automatically satisfy Polish minimums in all categories. Allowances paid as reimbursement of travel or accommodation costs are excluded from the minimum-wage calculation, which is a common source of underpayment errors.

The Luxembourg employer must also appoint a contact person in Poland authorised to receive and transmit documents on behalf of the company. This person need not be an employee; a local law firm or service provider qualifies. Crucially, the employer must retain payroll and working-time records accessible to PIP inspectors throughout the posting and for up to two years after it ends. We obtained a reversal of a PIP penalty exceeding PLN 45,000 for a Luxembourg asset-management firm in the Mazowieckie region (autumn 2025) after demonstrating that records had been held in Luxembourg but were not accessible on demand – a procedural gap, not a substantive one.

For assignments involving non-EU nationals, the A1 certificate issued by the Luxembourg social-security authority (CCSS) is essential. It confirms continued affiliation to Luxembourg social security and prevents double contributions. Without it, Polish Social Insurance Institution (Zakład Ubezpieczeń Społecznych, ZUS) may claim contributions from the first day. For context on cross-border certificate requirements, see our guide on posted workers and A1 certificates.

Who needs a work permit, and what are the deadlines?

EU and EEA nationals – including Luxembourg citizens – do not require a work permit to work in Poland. However, third-country nationals employed by a Luxembourg entity and posted to Poland do require authorisation. The most common instruments are the Type A work permit (for employment with a Polish entity) and the EU Blue Card, which applies to highly qualified workers earning at least 150% of the average gross salary published quarterly by the Central Statistical Office (Główny Urząd Statystyczny, GUS). In early 2026, that threshold sits at approximately PLN 10,500 gross per month.

The work permit must be obtained before the worker enters Poland for employment purposes. Applications are filed with the relevant regional governor (Wojewoda) and processing takes 30 to 60 days in most voivodeships, though Warsaw-region applications regularly exceed 90 days due to volume. Luxembourg companies that move employees to Poland without first securing authorisation face fines of up to PLN 10,000 per unauthorised worker, and the worker faces deportation proceedings.

  • Identify all non-EU nationals in the planned posting pool at least 120 days before the assignment start date.
  • Confirm whether the EU Blue Card or a standard work permit is the correct instrument for each individual.
  • Prepare the employment contract, educational credentials, and employer declaration before filing.
  • Track permit expiry dates – renewals must be filed before the current permit lapses to preserve lawful status.

For Luxembourg companies with UK-national employees, the post-Brexit framework adds another layer. A1 certificates no longer apply to UK nationals under EU rules. See our separate note on posted workers from the United Kingdom and A1 certificates for the current procedure.

What does Poland's whistleblower law require from foreign employers?

Poland's Whistleblower Protection Act, which entered into force in September 2024, applies to all employers with 50 or more workers in Poland – regardless of whether the employer is a Polish or foreign entity. A Luxembourg company with a Polish branch or subsidiary employing 50 or more people must establish an internal reporting channel, designate a person responsible for handling reports, and adopt a written reporting procedure within three months of crossing the threshold. The channel must allow anonymous reporting.

Employers between 50 and 249 workers had until 17 December 2024 to implement their channels. Entities already above 249 workers were subject to the obligation from 25 September 2024. Non-compliance carries fines of up to PLN 5,000 for individuals and reputational exposure that is difficult to reverse once a whistleblower complaint reaches the Commissioner for Human Rights (Rzecznik Praw Obywatelskich, RPO).

The practical gap for Luxembourg groups is that a channel compliant with Luxembourg law does not automatically satisfy Polish requirements. Polish law mandates specific acknowledgement timelines – seven days to confirm receipt and three months to provide feedback – and prohibits retaliation with explicit remedies including reinstatement and compensation. A group-level channel can serve Polish employees only if it meets all Polish procedural requirements and is accessible in Polish. We helped a Luxembourg holding company in Małopolska adapt its group whistleblower platform to Polish standards in spring 2026, avoiding a PIP enforcement notice.

Luxembourg companies managing broader Polish legal exposure should also review our analysis of dispute resolution options for Luxembourg companies in Poland, which covers enforcement mechanisms relevant to employment disputes.

Each Luxembourg company's specific situation carries irreversible consequences if left unaddressed. A missed posting notification forfeits the right to invoke Luxembourg-law terms against PIP. An unauthorised worker precludes the employer from regularising status retroactively. Acting before an inspection is the only window that remains fully open.

To receive an expert assessment of your company's employment compliance position in Poland, contact info@kordeckipartners.com.

What to prepare before your next posting or hire in Poland

  • PIP posting notification filed electronically before day one of the assignment.
  • A1 certificate from CCSS for each posted worker, covering the full assignment period.
  • Work permits secured for all non-EU nationals at least 90 days before arrival.
  • Internal whistleblower channel operational and compliant with Polish procedural timelines.
  • Local contact person designated and payroll records accessible to PIP in Poland.

If your Luxembourg entity employs 50 or more people in Poland and has not yet implemented a Polish-compliant reporting channel, the deadline has already passed. The longer the gap remains open, the higher the risk that a complaint triggers regulatory scrutiny before internal procedures are in place.

For a tailored compliance review covering posting obligations, work authorisation, and whistleblower requirements, reach out to info@kordeckipartners.com.

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 compliance, cross-border postings, and work authorisation. 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.