This diploma thesis entitled “Legal problems of the GmbH amendment 2014” mainly deals with the Tax Code Amendment Act 2014 and the newly established § 10b GmbHG (Limited Liability Companies Act). The most fundamental developments regarding the creation of the GmbHG as well as the last amendments are listed chronologically in the thesis at hand. All further developments are mentioned such as the year 1906, which is the year this type of company was regulated by law for the first time, the entry into the European Union in 1995 as well as the radical reduction of the minimum share capital by the Company Law Reform Act 2013 and its immediate revision by the Tax Code Amendment Act 2014 a few months later. In this work, special attention is paid to the newly established § 10b GmbHG (Limited Liability Companies Act) and to the GmbH regarding its privileged founding. All relevant aspects such as the amount and form of the deposits, the allocation of shareholder rights, the issue of the non-demandable invested capital, its payment ahead of time as well as the due date after the privileged founding, the capital increase, the publicity of § 10b GmbHG, the transfer, the sharing and share pledge of business interests, the liquidation of the limited company as well as its forms of termination, the tax aspects, liability issues, and last but not least, constitutional concerns are described in much detail.