Our studies show that the significance or insignificance of the problem depends on what commodities we consider. From our study, we have found that the increase in internet users and e-commerce may be causing tax loss in relation to every commodity. Only the sales of alcoholic beverage still have no significant decrease from the increase of the internet, while other commodities‘ sales (cigarettes; household equipment; textiles, clothing, footwear, and leather goods; books and stationery; and motor cars) show a significant decrease because of the greater number of internet users.