In the wide domain of finance, taxation is one of the issues to which public opinion is most sensitive. This paper explores why tax reform was hotly debated in Japan throughout the 1920s, focusing on the policies of the two main political parties. Though a topic rarely treated by historians, this controversy reveals a wealth of information on the concerns that lay behind policy choices in years that were marked by economic instability and social unrest; it shows, in particular, how the ruling elites tried to attenuate class conflict by enhancing the redistributive function of taxes, which had thus far been subordinated to the encouragement of rapid economic growth and the financing of state investment. While these attempts deserve attention...