Hello. Legal analysis: big data can be through the personal income tax can check the personal income: can check the personal income. 1, personal income tax app can query salary, first need to register and login personal income tax APP, in the home page, select the income tax details query; 2, select the need to query the year, and then select the need to query the type of "salary "(default all types are selected), click the query button; 3, click the query, will enter the income tax details, in the upper part of the income can be seen in the total, as well as the total amount of declared taxes, and then it is the choice of the year of each month's salary details. The page settings of local tax websites vary from region to region, so the inquirer needs to look for the window on tax processing to make business inquiries. Or you can check by yourself through the popular payment APP, if you don't have the Alipay application, you can download one from your cell phone's application store. In the interface of Alipay APP, open the "more" option, enter the more option, find the "city services" under the convenient life application, and then continue to find the governmental affairs column in the city services column, there will be a governmental affairs column. The "personal income tax query" option, click in and then verify the information can be queried by yourself.