30 ILCS 340/1

Whenever significant timing variations occur between disbursement and receipt of budgeted funds within a fiscal year, making it necessary to borrow in anticipation of revenues to be collected in a fiscal year, in order to meet the same, the Governor, Comptroller and Treasurer may contract debts, in an amount not exceeding 5% of the State's appropriations for that fiscal year, and moneys thus borrowed shall be applied to the purpose for which they were obtained, or to pay the costs of borrowing and the debts thus created, and to no other purpose. All moneys so borrowed shall be repaid by the close of the fiscal year in which borrowed.