With the entry into force of Regulation (EU) 2017/2402 of the European Parliament and of the Council of 12 December 2017 on establishing a general framework for securitization and creating a specific framework for simple, transparent and standardized securitization, and amending Directives 2009/65 / EC, 2009/138 / EC and 2011/61 / EU and Regulations (EC) No 1060/2009 and (EU) No 648/2012 (Official Journal EU L 347 of 28.12.2017, pp. 35–80), hereinafter 'Regulation 2017/2402' the securitization legal status has been modified. The activities of participants in this process have been supervised. The supervision is exercised by the Polish Financial Supervision Authority. Thus, supervised entities became entities not only from traditional financial market segments: banking, capital and insurance. An important, especially for the Polish market, new obligation is reporting, the principles of which have been set out in the Regulation. This analysis concerns this obligation and the way it is supervised, including sanctioning its failure to comply.