12366热点问题解答——个人所得税扣缴客户端操作热点问题解答

Group 1 - Taxpayers cannot modify or delete the special additional deduction information collected through the "Individual Income Tax" APP; they can only void or modify it through the APP, the natural person electronic tax bureau web portal, or in person at the tax service hall [2] - If the withholding agent has previously collected the taxpayer's information, the taxpayer's information can be synchronized to the withholding end if the taxpayer later updates their information in the "Individual Income Tax" APP; otherwise, it cannot [3] - Withholding agents can update the withholding end with the latest special additional deduction information by clicking the "Download Update" button on the special additional deduction information collection page or by selecting "Download Update" - "Designated Personnel" [4]