Legal analysis: the social insurance payment base is declared by one line. The application process is as follows: log on to the website of Human Resources and Social Security Bureau, and enter the "Social Insurance Online Service System" through "Online Application for Social Security Employment of Company Edition" in "Business Handling"; Click "payment base declaration"; Enter the company information and read the "Notes" carefully; Click Next to enter the employee payment base and save it; Print "202 1 Signature Confirmation Form for Insured Units to Declare Social Insurance Payment Base" (hereinafter referred to as "Signature Confirmation Form"); Submit the declaration (print first, then submit).

Legal basis: People's Republic of China (PRC) Social Insurance Law.

Article 12 The employing unit shall pay the basic old-age insurance premium according to the proportion of the total wages of employees stipulated by the state and record it in the basic old-age insurance pooling fund. Employees shall pay the basic old-age insurance premium in accordance with the proportion of wages stipulated by the state and record it in their personal accounts.

Article 60 The employing unit shall declare on its own and pay social insurance premiums in full and on time. Except for legal reasons such as force majeure, the payment shall not be postponed or reduced. The social insurance premiums that employees should pay shall be withheld and remitted by the employer, and the employer shall inform me of the details of paying social insurance premiums on a monthly basis.