35 ILCS 200/18-125
Referenda initiated under Section 18-120 shall be subject to the provisions and limitations of the general election law.
The question of adopting a maximum tax rate other than that applicable shall be in substantially the following form for all elections held after March 21, 2006:
Shall the maximum tax rate for . . . purposes of . . .(insert legal name, number, if any, and county or counties of taxing district), Illinois, be established at . . . % of the equalized assessed value of the taxable property therein instead of . . . %, the maximum rate otherwise applicable to the next taxes to be extended? The votes must be recorded as "Yes" or "No".
The ballot shall have printed thereon, but not as a part of the proposition submitted, (i) a statement of the purpose or reason for the proposed change in the tax rate, (ii) an estimate of the approximate amount extendable under the proposed rate and of the approximate amount extendable under the current rate applicable to the next taxes extended, such amounts being computed upon the last known equalized assessed value, and (iii) the approximate amount of the tax extendable against property containing a single family residence and having a fair market value of $100,000 at the current maximum rate and at the proposed rate. The approximate amount of the tax extendable against property containing a single family residence shall be calculated (i) without regard to any property tax exemptions and (ii) based upon the percentage level of assessment prescribed for such property by statute or by ordinance of the county board in counties which classify property for purposes of taxation in accordance with Section 4 of Article IX of the Constitution. Any error, miscalculation or inaccuracy in computing such amounts that is not deliberate shall not invalidate or affect the validity of any maximum tax rate so adopted.
If a majority of all ballots cast on the proposition are in favor of the proposition, the maximum tax rate so established shall become effective with the levy next following the referendum. It is the duty of the county clerk to reduce, if necessary, the amount of any taxes levied thereafter. Nothing in this Section shall be construed as precluding the extension of taxes at rates less than that authorized by the referendum.
35 ILCS 200/18-125