Legal analysis: The custody account of occupational annuity fund's collection property (hereinafter referred to as the collection account) refers to the special deposit account opened by the collection account custody bank (hereinafter referred to as the custody bank) in the name of occupational annuity fund's collection property, entrusted by the social insurance agency (hereinafter referred to as the social security agency). The collection account shall be opened separately, and shall not be used with any other accounts such as income users, expenditure users, special financial accounts, social insurance premium accounts collected by tax authorities and social security agencies at all levels. The collection of occupational annuity funds is managed in the whole process.

legal basis: article 4 of the measures for occupational annuities of the people's Republic of China and state organs and institutions shall bear the expenses of occupational annuities by both the unit and the individual staff. The proportion of occupational annuity paid by the unit is 8% of the total wages of the unit, and the proportion of individual contributions is 4% of the wages paid by the unit, which is withheld by the unit. The payment base of units and individuals is consistent with the payment base of basic old-age insurance for staff of government agencies and institutions. According to the situation of economic and social development, the state adjusts the proportion of occupational annuity contributions of units and individuals in a timely manner.