Legal basis: Announcement of the Ministry of Finance, the State Administration of Taxation and the General Administration of Customs on Relevant Policies for Deepening the Reform of Value-added Products VIII. For taxpayers established after 20 1 April 91,if their sales for three months from the date of establishment meet the above-mentioned requirements, the policy of adding and deducting shall apply from the date of registration as general taxpayers. After the taxpayer determines that the policy of adding and deducting is applicable, it will not be adjusted in the current year, and whether it is applicable in future years will be determined according to the sales volume of the previous year.