On-the-job employees are using the mobile personal income tax APP developed by software developer Yiqiying, which was recommended by State Taxation Administration of The People's Republic of China when he won the bid. The natural person electronic tax bureau (withholding end) on the computer can query the personal income tax withheld and remitted by everyone for each period. But these data can only be queried and seen after taxpayers declare next month. It is impossible to inquire in advance how much personal income tax will be withheld from this month's salary income. This can only be seen from the salary payment table of this month obtained by the relevant personnel of the human resources department and the asset accounting department of the unit, so as to know how much personal income tax will be withheld in the reporting period next month. Of course, this is based on the understanding and application level of individual income tax by tax collectors in the unit. If the amount declared next month does not match the amount withheld last month, the taxpayer will ask the withholding agent how to correct it.