55 ILCS 5/6-27004
All moneys received from the issuance of bonds as herein authorized, or from any tax levied pursuant to the authority granted by this Division, shall be set apart in said working cash fund by the county treasurer and shall be used only for the purposes and in the manner hereinafter provided. Such fund, and the moneys therein, shall not be regarded as current assets available for appropriation and shall not be appropriated by the county board in the resolution termed the annual appropriations bill. The county board may appropriate moneys to the working cash fund up to the maximum amount allowable in the fund, and the working cash fund may receive such appropriations and any other contributions. In order to provide moneys with which to meet ordinary and necessary disbursements for salaries and other corporate purposes, such fund and the moneys therein may be transferred, in whole or in part, to the general corporate fund of the county and so disbursed therefrom (a) in anticipation of the collection of any taxes lawfully levied for general corporate purposes, (b) in anticipation of the receipt of moneys to be derived from fees and commissions to be earned by the county clerk and the county collector for extending and collecting taxes levied, or (c) in the anticipation of such taxes, as by law now or hereafter enacted or amended, imposed by the General Assembly of the State of Illinois to replace revenue lost by units of local government and school districts as a result of the abolition of ad valorem personal property taxes, pursuant to Article IX, Section 5(c) of the Constitution of the State of Illinois. Moneys transferred to the general corporate fund in anticipation of the collection of taxes shall be deemed to have been transferred in anticipation of the collection of that part of the taxes so levied which is in excess of the amount or amounts thereof required to pay (a) any tax anticipation warrants and the interest thereon, theretofore or thereafter issued under the provisions of Section two (2) and three (3) of "An Act to provide for the manner of issuing warrants upon the treasurer of the State or of any county, township, city, village or other municipal corporation and jurors' certificates", approved June 27, 1913, as amended, (b) the aggregate amount of receipts from taxes imposed to replace revenue lost by units of local government and school districts as a result of the abolition of ad valorem personal property taxes, pursuant to Article IX, Section 5(c) of the Constitution of the State of Illinois, which the corporate authorities estimate will be set aside for the payment of the proportionate amount of debt service and pension or retirement obligations, as required by Section 12 of "An Act in relation to State Revenue Sharing with local government entities", approved July 31, 1969, as amended, and (c) any notes and the interest thereon, theretofore or thereafter issued under the provisions of Division 6-2, and such taxes levied for general corporate purposes when collected shall be applied, first, to the payment of any such warrant and the interest thereon, the amount estimated to be required to satisfy debt service and pension or retirement obligations as set forth in Section 12 of "An Act in relation to State revenue sharing with local government entities", approved July 31, 1969, as amended, and to the payment of any such notes and the interest thereon, and then to the reimbursement of said working cash fund as hereinafter provided. Upon the receipt by said county treasurer of any taxes, or other moneys, in anticipation of the collection or receipt whereof moneys of such working cash fund have been so transferred for disbursement, such fund shall immediately be reimbursed therefrom until the full amount so transferred has been re-transferred to such fund. Unless the taxes and other moneys so received and applied to the reimbursement of the working cash fund, prior to the close of the fiscal year following the fiscal year in which the last tax penalty date fall due shall be sufficient to effect a complete reimbursement of such fund for any moneys transferred therefrom in anticipation of the collection or receipt of such taxes, or other moneys, such working cash fund shall be reimbursed for the amount of the deficiency therein from any other revenues accruing to said general corporate fund, and it shall be the duty of the county board to make provision for the immediate reimbursement of the amount of any such deficiency in its next resolution termed the annual appropriations bill.
55 ILCS 5/6-27004