Synopsis As Introduced Amends the Counties Code and the Illinois Municipal Code. Provides that home rule counties and municipalities with more than 500,000 inhabitants may not adopt an ordinance or resolution making an appropriation or containing a substantial tax increase unless (i) a copy of that ordinance or resolution, in its final form, has been made conveniently available on the county or municipality's Internet website for at least 7 days before the bill is considered for final passage and (ii) notice of the ordinance is given by publication in a newspaper of general circulation in the county or municipality not less than 7 nor more than 30 days before the ordinance or resolution is considered for final passage. Provides that, by a motion adopted by a record vote of at least three-fifths of the members elected, the county board or corporate authorities of the municipality may provide that those restrictions do not apply with respect to any one or more ordinances or resolutions specified in the motion. Defines "substantial tax increase" as an aggregate increase in one or more State taxes that will result in increased revenues that are equal to 1% or more of the most recently adopted county or municipal budget. Preempts home rule powers. Effective immediately.