Submitted by Sara Ribeiro (sara.ribeiro@ucb.br) on 2017-04-12T16:29:03Z No. of bitstreams: 1 LeonardoGondinhodeOliveiraDissertacao2015.pdf: 1064516 bytes, checksum: 20c4b0964249cf25258e28d01761cc50 (MD5) / Approved for entry into archive by Sara Ribeiro (sara.ribeiro@ucb.br) on 2017-04-12T16:29:22Z (GMT) No. of bitstreams: 1 LeonardoGondinhodeOliveiraDissertacao2015.pdf: 1064516 bytes, checksum: 20c4b0964249cf25258e28d01761cc50 (MD5) / Made available in DSpace on 2017-04-12T16:29:22Z (GMT). No. of bitstreams: 1 LeonardoGondinhodeOliveiraDissertacao2015.pdf: 1064516 bytes, checksum: 20c4b0964249cf25258e28d01761cc50 (MD5) Previous issue date: 2015-12-01 / In the present work, it aims to examine the tax aspects of commercial ICMS with the new direct electronic trade, M-Commerce, of B2C, and the reflexes caused mainly to the State public funds. As this form of trade has increased in the last years, the State has been much worried about its tax regulation in order to framing, in an egalitarian way, the suppliers of intangible goods that act in the Worldwide Web and the consumers who use this sales channel. This work searches its implications in the economy and national market, as there is no legal provision that works effectively on several elements that exist in the electronic trade and that assure legal certainty and fair taxation to the suppliers including those that do not trade their goods through the Worldwide Web with M-Commerce.Above all, when such goods have no physical support, as there are no appropriate devices from the Tax Authorities to frame these transactions in the same way of the classical trade. For this, the necessary concepts are studied to understand the electronic mobile trade and its models of negotiation, establishing a relation with the tax legal system of Brazil and a criticism to the proposal of taxation on the destiny of the goods, as well as, the behavior of the commerce ICMS. At last, the work addresses the possible solutions to manage both the losses in the collection of commerce ICMS and the admission of egalitarian treatment to the taxpayers of this tax. / No presente trabalho, busca-se examinar os aspectos tribut??rios do ICMS mercantil com o novo com??rcio eletr??nico m??vel, o M-Commercedireto do tipo B2C, e os reflexos causados, principalmente, aos cofres p??blicos estaduais. Como essa modalidade comercial tem crescido nos ??ltimos anos, o Estado tem se preocupado pouco ou quase nada com sua regulamenta????o tribut??ria, para enquadrar de forma ison??mica os fornecedores de bens intang??veis atuantes por meio da Rede Mundial de Computadores e dos consumidores que usufruem desse canal de vendas. Busca-se estudar as suas implica????es na economia e no mercado nacional, j?? que n??o h?? previs??o legal que regule de forma eficaz sobre diversos elementos presentes no com??rcio eletr??nico m??vel e que configure seguran??a jur??dica e justi??a fiscal aos fornecedores, inclusive ??queles que n??o comercializam suas mercadorias peloM-Commerce, sobretudo, quando essas mercadorias n??o possuem suporte f??sico, j?? que n??o existem mecanismos apropriados pelo Fisco para enquadrar essas transa????es da mesma maneira que o com??rcio cl??ssico. Para tanto, s??o estudados os conceitos necess??rios para compreender o com??rcio eletr??nico m??vel e seus modelos de negocia????o, estabelecendo uma rela????o com o sistema jur??dico tribut??rio do Brasil e uma cr??tica a proposta de tributa????o no destino, bem como o comportamento do ICMS mercantil. Por derradeiro, o trabalho indica as solu????es poss??veis para contornar tanto as perdas na arrecada????o com o ICMS mercantil, bem como as consequ??ncias quanto ?? admiss??o de tratamento ison??mico aos contribuintes desse imposto.