Core Viewpoint - The article provides essential information regarding the annual social security contribution wage declaration process for employers and employees, emphasizing the calculation methods, tax implications, and adjustment procedures for wages [2][4][5]. Group 1: Annual Contribution Wage Declaration - Employers must declare the average monthly wage of employees for the previous year during the annual contribution wage declaration period. For employees who worked less than a year, the wage is calculated by dividing the total wage by the actual months worked [2]. - The average monthly wage includes pre-tax income, which consists of personal income tax, social insurance, housing fund, and occupational annuity deducted from the employee's salary [4]. Group 2: Wage Adjustment and Reporting - If an employee's wage is adjusted during the year, the annual contribution wage does not need to be adjusted immediately. The contribution wage for the current year is based on the previous year's average monthly wage [5]. - Employers can submit multiple declarations during the annual contribution wage declaration period, with the last submitted data being the final record. They can check the declared wage data through the social security fee management client or the electronic tax bureau [5].

Group 1 - The core viewpoint of the article is to provide guidance on the annual social insurance payment wage declaration process for employers, including important dates, scope, content, and channels for submission [1][2][3][4][5][6][10][11][12][29][35]. Group 2 - The declaration period for the 2025 social insurance payment wage declaration is from May 1, 2025, to June 25, 2025, and employers must report the previous year's average monthly wage for their employees [3][10]. - All employers with valid insured employees, including individual businesses, are required to submit the annual wage declaration [4][10]. - The declaration must include the average monthly wage for the previous calendar year (January 1, 2024, to December 31, 2024) for all employees, calculated based on total wages divided by actual working months for those who worked less than a year [5][10]. Group 3 - Employers can submit the declaration through the Social Insurance Fee Management Client or the Electronic Tax Bureau [6][12][29]. - The process involves logging into the management client, downloading employee information, entering new wage data, and submitting the declaration [14][16][20][34]. - After submission, employers can check the status of their declarations in the system, which will provide feedback on success or failure [22][27][29].