The obligation to provide information on the processing of personal data is one of the basic obligations of the administrator imposed by the provisions of the EU General Data Protection Regulation. However, the information obligation is sometimes seen as excessively onerous, and the manner of its implementation raises numerous doubts and practical problems. The article discusses the essence and significance of the information obligation, the scope of this obligation, the modes and forms of its implementation, under the provisions on the protection of personal data law. Part of these issues is the concept of layered implementation of this obligation and the implementation of the information obligation by public bodies as well as micro-entrepreneurs. The rest of the article discusses the exclusions of the information obligation and liability for failure to comply with this obligation.