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ABSTRACT
This research is focused on identified problem these are : Firstly, what do Changes on Tariff and The Net Deemed Profit towards individual Taxpayers result tax revenue optimally ? Second, what do Changes on Tariff and The Net Deemed Profit toward individual Taxpayers fulfill equality principles and becoming volunteer tax compliance ? Third, what are the things to do for administration improvements and tax policy in resulting tax compliance towards for Taxpayers who used the net deemed profit?.

The framework of theoretical used an hard-to-tax concept with the presumptive taxation concept, self-assessment system, rate structure, and with its implications toward equality in taxation and tax compliance based on administration science.

Research method used qualitative approach. 1l1is research based on interpretation from point of views of the informan from T axpaycrs, Tax Consultants and Tax Officers (Tax Offices) and used interview guidences and triangulation approach as well.

Results of tlus research describes that Changes on Tariff and Tite Net Deemed Profit do not make Taxpayers not to obey tax policy, even though rate structure has been made fairly and Taxpayers still would not apply the net deemed profit today because Taxpayers assumed that the changes in the net deemed profit caused increasing to marginal tax rate and tax burden is still too high for Taxpayers. Generally, appliying the net deemed profit is simple for TaX.paycrs in reporting tax ohligation.

Finally, conclusions in this research that Changes on Tariff and The Net Deemed Profit towards individual T axpaycrs do not result in tax revenue optimally yet. Second, there is not fairness in the change of percentage of the net deemed profit for business income activities. Administrationly, appliying t11e net deemed profit still have 'loopholes' for evanding a tax. Recommendation : as well Directorate of Tax General declines percentage of the net deemed profit, and administrationly the invoces from Taxpayers have to registered in tlte Tax Office as controlling for sales transaction, Taxpayers make monthly sales recapitulation reports in Periodic Tax Retum format and Tax Payment Slip (income tax, article 25) and they will he reported to tax office everymontl1 and this is purpose as administration contmlling for Taxpayers.