Tax avoidance is a legal tax action. The tax avoidance practice in the company can be caused by several factors, tax experts, inventory intensity, sales growth, and accounting conservatism. This study aims to analyze the effect of Tax expert, Inventory Intensity, Sales Growth, and Accounting Conservatism on Tax avoidance. The object of this research is the Pharmaceutical sub-sector which is listed on the Indonesia Stock Exchange. The type of data used is secondary data in the form of financial reports of the Pharmaceutical sub-sector listed on the Indonesia Stock Exchange for the 2016-2020 period. The research sample was obtained using the purposive sampling method, where there are only 40 data that pass the criteria and analyzed using multiple regression analysis and hypothesis testing. The research results were that Inventory Intensity has a positive effect on Tax avoidance. Companies with high inventory intensity cause additional costs for companies so that the profit decreases and tax payments will also decrease. Tax expert, Sales Growth, and Accounting Conservatism have no effect on Tax avoidance.