Since the emergence of the internet and social media such as Instagram, it is used by its users to transact buying and selling goods among its users. In this case, the user as the seller in order to attract other users (potential bidders/buyers) by using auction methods, so that the goods offered get the optimal price. The method of auction through the Instagram in Indonesia is prohibited, because in addition to violating existing laws related to auctions, namely not being carried out in front of the Auction Official and also no Auction Minutes are made as evidence of the implementation of the auction, besides that there is also no legal certainty for the winner of the auction (buyer) or from the seller. The method used in this research is a juridical research empirical. The research found that auction through the Instagram in Indonesia is prohibited, because in addition to violating existing laws related to auctions, namely not being carried out in front of the Auction Official and also no Auction Minutes are made as evidence of the implementation of the auction, besides that there is also no legal certainty for the winner of the auction (buyer) or from the seller.
