Illinois constitution
Article IX

Section 1 - The General Assembly has the exclusive power to raise revenue...

Section 2 - In any law classifying the subjects or objects of non-property...

Section 3 - (b) Laws imposing taxes on or measured by income may...

Section 4 - (c) Any depreciation in the value of real estate occasioned...

Section 5 - (c) On or before January 1, 1979, the General Assembly...

Section 6 - The General Assembly by law may exempt from taxation only...

Section 7 - The General Assembly may provide by law for fair apportionment...

(source: amendment adopted at general election november 6,1990.) - (e) Owners, occupants and parties interested shall be given reasonable...

Section 9 - (f) The State, departments, authorities, public corporations and quasi-public corporations...

Section 10 - This Article is not qualified or limited by the provisions...

Section 11 - (f) Federal funds may be spent for any purposes authorized...