Concealed capital in corporate tax law no: 5520 as a tax guarantee system

The subject of Concealed Capital which was formerly regulated in Corporate Tax Law No:5422 has been rearranged by taking the articles of Concealed Capital, genel accepted tax rules, international improvements and objective criteria into consideration in Corporate Tax Law No:5520 that was published on 21.06.2006 dated Official Journal and entered into force on 01.01.2006. Thanks to this new regulation, objective criteria has been established by clarifying the ratio of debt/equity capital, the terms of equity capital and person related with shareholder, also the types of borrowing which can not be classifed in the concept of Concealed Capital has been specified. Moreover, the prosedures and principles of the adjusting events at Concealed Capital implementation has been determined. In this thesis, it is aimed to evaluate the subject of Concealed Capital which takes an important place among the tax guarentee programs in Turkish Tax System and to make case study analyse in implementation by examining in Corporate Tax Law No:5520 from various aspects.