Palavras-chave: Gestao do planeamento fiscal, Business Intelligence, fiscalidade internacional, Tecnologias de Informaçao, marketing de e-governo Abstract: This paper discusses how Business Intelligence tools can contribute to national and international tax planning management options, which use the tools made available by the legislator. Aspects of tax planning as management tools are addressed in the paper as a perfectly legitimate means and not as a tool of abuse or even tax evasion. tax planning and strategic IT planning to support tax administrations, with greater efficiency and effectiveness in decision making, considering e-government marketing. Keywords: Tax Planning Management, Business Intelligence, International Taxation, Information Technology, e-Government Marketing. 1. Existem ferramentas associadas ao marketing e a outras áreas da gestăo, que podem auxiliar os gestores nas suas atividades de gestăo, nomeadamente o Business Intelligence (BI), que se vulgarizou na década de 80 do Século XX pela Gartner Group, como uma forma de definir o acesso e a análise de dados e informaçoes das Data Warehouse ou Data Mart.