Tax Accounting choices in this study chose the straight-line method and the FIFO method,which is the management actions in determining the policies that are applied to compile financial statements and used as an indicator of tax aggresivitas. In addition the study also used the deffered tax expense and firm size as another independent variable to measure the tax aggresivitas action of the tax aggressiveness. This study aims to analyze the tax accounting choices, defferen tax expense and tax firm size as an indicator of tax aggressiveness. The samples used in this study as many as 50 manufacturing companies listed on the Indonesia Stock Exchange (IDX) during the period 2010-2014. The sample were with how purposive random sampling by using certain criteria. Tax accounting choices is measured by the selection of the method of straight line method and the FIFO method with dummy variables, whereas for deffered tax expense is measured by comparing the deffred tax expense by total assets. Firm size is measured by taking the natural logarithm of total assets. The results of this study found that the straight-line method significant negative effect against the tax aggressiveness. while the FIFO method has no affect against tax aggressiveness. Deffered tax expense significant negative effect on tax aggressiveness and firm size are significant negative effect against tax aggressiveness. So it can be said that the method of straight-line and deffered tax expense can be used as an indicators of tax aggressiveness
