The voting age has changed from 20 to 18 years old in japan. As a result, there is debate about how to increase political literacy. However, due to excessive emphasis on political neutrality in education, political education curricula have not been developed. To contribute to the development of a systematic curriculum in electorate education, this research focuses on tax education. In our country, tax is determined by law. By learning about taxation, students have the opportunity to use philosophical concepts to think, not only about congress and elections, but also about the state and the social system. I conclude by presenting a teaching plan based on this research.