Social security contributions in Poland are significant, particularly in the case of highly paid managers. As a result, it is common practice for managers to perform their duties as self-employed persons under management contracts. A recent Supreme Court decision confirmed that management contracts can still be performed by self-employed managers and that such business activity constitutes a basis for social security insurance if the manager is not a management board member.
The Supreme Court recently ruled that an employer can demand that an employee inform it of any additional activities that he or she undertakes during the employment period. If the employee fails to do so, this can justify his or her employment contract being terminated upon notice. The judgment confirms the court's existing position in this regard. However, the court's second conclusion concerning data protection is new and may raise doubts regarding its compliance with the Labour Code.