| Tax basic principles are legal cardinal norms that decide tax distributive law and the state will, and adjust tax relations. They play a commanding role in each tax legal system and all the standards. They also integrate the standards. Tax basic principles embody the spirit of tax law, and they are the basic principles directing the formulation and enforcement of the law. In the present day in China when the personal income tax law faces being revised overall, it is undoubtedly of practical and immediate significance to study how tax basic principles affect the revising. To mainly counter the principles' referable significance for perfecting the personal income tax law, this article makes a through study.Combining theory analysis with practice analysis, the article studies the perfection of the personal income tax law from the jurisprudence and financial constitution angles that are different from tax economics. It is the feature of the article as well. Undeniably, the tax legal doctrines and the tax impartial doctrines have become two basic standards convinced in the theory circles and legislation circles in all over the world. Therefore, how to put into effect the basic ideas of these principles in the standards and rules of the personal income tax law, is the kernel of the article.This article mainly consists of three parts. The first chapter, also the first part, discusses briefly the tax basic principles, including the concept, the implication and theories, which lays a foundation for guiding the specific taxes. The second chapter, also the second part, discusses the malpractice which lies in the personal income taxlaw in China, leading to the necessity and imminence of writing the article. And the third, fourth, fifth and sixth chapters constituting the last part, discuss respectively the guiding effects of the tax legal principles, the tax impartial principles, the social policy principles and the tax efficiency principles on the personal income tax law perfection. |