最早的所得税１４５１年，在意大利的佛罗伧萨，由意大利财阀洛伧佐·迪·梅迪奇所实施的课税是世界上最早的所得税，这种课税以后变的标准的累进课税方式。由于这种所得税堕落为政治压迫的工具，于１４９２年洛伧佐死后被废止。英国于１７９９年１月９日以后也引进了所得... The earliest income tax In 1451, in Florida, Florida, the tax imposed by Lozodzidi Medici, the chaebol of Italy, was the earliest income tax in the world, which later became a standard progressive tax the way. Since this income tax degenerated into a tool of political oppression, it was abolished in the aftermath of Lothar’s death in 1492. Britain also introduced income after January 9, 1799 ...