Online items have real business relations in various ways though Game Industry Promotion Act prohibits having business relations in online items. Thus, the theories of bringing it into the open and of imposing legal controls on it are being studied with a lot of legal and social problems. The national tax authorities are pursuing a plan to normalize taxation on internet item intermediary market and transaction income. There was an article that a foreign authority imposed tax on them. The authority concerned discloses that the purpose of <Game Industry Promotion Act>is to establish promotion of the game industry and healthy game culture of the people. Article 14 of the same act discloses that the purpose of the same act is to prevent and relieve game users’damage. However, it is necessary to have a tax-law discussion with discussion on bringing it to the open since a lot of game users may drift into an illegal danger.