Does the social security base include the year-end bonus?

1. The annual average monthly salary in the social security base includes bonus. 2. The average monthly wage income of employees is calculated according to the total wage items stipulated by the national statistical department, including wages, bonuses, allowances, subsidies and other monetary wage income. In other words, all the cash employees get every month should be used as the social security payment base of 1, and the old-age insurance premium: the unit pays 20% and the individual pays 8%. 2. Unemployment insurance premium: 2% paid by the unit and 1% paid by the individual. 3. Medical insurance premium: the unit pays 7% and the individual pays 2%. 4. Work-related injury insurance premium: paid by the unit, but not by the individual. 5. Maternity insurance premium: paid by the unit, but not by the individual.