Öz
Income taxes have been increased with the Iaw of income numbered 4369 which produced in 25 july 1998. The aim of ihis work is to fix the reason of the increasing of the income income tcıxes by ıısing physical principles before the income law was produced. In the entrance chapter, it is explained that a problem related with the social Sciences which takes this produced income law as on example, wiil be built on physical principles. In the metiıods chapter the necessary physical principles are explained and it is pointed out that there has been (Table) an increase in the total tax whereas it must be decrease. In the last chapter it is olso explained how they must behave before the law was produced.