Research about justification basis of special measures concerning taxation.

In Japan, Many special measures concerning taxation adopted for fixed policy aim achievement exist. Though a policy aim is just, a tax system generated by policy is exactly an inequitable tax system essentially. It is necessary to clarify the conditions and the limit that such unfairness is permitted. This research examined the justification basis of the succession-of-a-business taxation system that is one of the tax system generated by policy. The succession-of-a-business taxation system treats only the succession of a business of small and medium-sized enterprises favorably, compared with the private property. If an inheritance tax is increased, the unfairness between the commercial property of small and medium-sized enterprises and the other property. So it is necessary to verify the validity severely to treat the succession of a business of small and medium-sized enterprises favorably.