This book began with the research on fuel consumption taxation in Uberlândia - MG and the applicability of Law 12.741/2012. Thus, the problem of the research was to demonstrate the applicability of the Law of Fiscal Transparency on fuel consumption in a case study. The results found indicate that most of the establishments do not apply law 12.741/2012 correctly, informing incorrect tax burden in relation to the source indicated. It is concluded that the applicability of the law is not efficient and effective because the information to the consumer is distorted.