Reducing money, like "eliminating money", is one of the miscellaneous taxes in the Tang Dynasty. In the fourth year of Dezong Jianzhong (783), he collected money from strangers all over the country, stipulating that all public and private trade should be taxed at 20 articles each time, and then increased to 50 articles; Barter is converted into money and taxed. Issued by the government to dentists for printing paper and registration; The tax return is filed in a private book, without going through the dentist or yourself. One hundred tax evaders and two thousand sixty sticks.