the evaluation of pre-taxation practice in terms of the effects to tax system within the frame of the new income tax draft law

It is possible to define pre-taxation, as taxing the payment that arises because of taxable transactions before payment to the owner, on account of the tax that will accrue in the future. In fact, pre-taxation has been applied in Turkish tax system all along with the names such as “stoppage, withholding, deduction at source, deduction” as a taxation method and tax security measure. It is thought that stoppage is possitive for the ease of collection, combating with unrecorded and reducing the cost of collection. On the other hand, it is claimed that it has negative effects in terms of including income completely and the creation of a fair tax system. In legacy application, especially, the trend to leave from declaration system puts forward the stoppage practice but at the same time it causes various problems about equity and effectiveness in taxation. The New Income Tax Draft Law that collects the income tax and corporation tax in a single law as taxes on income, makes some changes at pre-taxation. In this study, the regulations of the New Income Tax Draft Law about the application of pre-taxation will be evaluated comparatively with the existing legislation, the problems and solution proposals will be discussed.