International Conference of Political Economy (ICOPEC), takes as a goal to identify and analyze the status of its age, held its first conference with the theme "International Political Economy: Adam Smith Today " in 2009. Following the ICOPEC conference, JOPEC Publication started to be published in 2010. JOPEC Publication aims at searching required alternatives, in addition to existing alternatives, with a critical approach, has been the main supporter of ICOPEC conference by including the studies in this context. In 2016, ICOPEC conferences were turned into a conference series with its 7th conference and the main theme of the 7th conference was determined as “State, Economic Policy, Taxation and Development". JOPEC Publication has undertaken to publish the papers, presented at this conference in English and Turkish, as an e-book. e realization of understanding like increasing "social welfare" by meeting public requirements requires benefiting widely from tax policies. Since taxes are mandatory payments from individuals and institutions to the State, they inevitably affect the overall economy. e expected role from tax policy is to affect positively the overall economy in parallel with the sated objectives of government since the regulations in taxation field affect, both negatively and positively, financial, economic, social and political areas. is editorial book includes a lot of topics that tax policy both affects and affect tax policy.