A. All amounts in the tax stability and trust fund may be deposited or invested. Under the state money management act, the county treasurer may transfer these amounts to the state treasurer for his management and control.
B. The interest or other income realized from the amounts in the tax stability and trust fund may be returned to the general fund of the county during the fiscal year in which the income or interest is paid to the extent the interest or income is required by the county to provide for its purposes during the fiscal year. Any amounts so returned may be used for all purposes as other amounts in the general fund are used. Any interest or income not so returned to the county general fund shall be added to the principal of the county tax stability and trust fund. (1988 Code § 3.20.030)