In provisions amending the Local Government Taxpayers' Bill of Rights Act, creates a 7-year statute of limitations for utility taxes (currently, 4 years). In provisions amending the Illinois Municipal Code, provides that a public utility that is an electric utility may not provide customer-specific information. Provides that penalties for failure to respond to requests for information shall be assessed by the municipality, but may be reduced or vacated by the municipality or a court of competent jurisdiction upon demonstration by the public utility that the public utility's failure to provide the requested information resulted from excusable neglect. In provisions concerning a public utility's liability for premises that have been annexed to the municipality, provides that the utility shall only be liable beginning 60 days after the date that the municipality provided the public utility notice of the annexation. Adds provisions amending the Public Utilities Act. Provides that the Illinois Commerce Commission shall not consider: (i) costs associated with a municipal audit; (ii) any court costs, attorney's fees, or other fees incurred under certain provisions of the Illinois Municipal Code; (iii) unpaid utility taxes owed to a municipality; or (iv) any penalties or interest imposed by a municipality under certain provisions of the Illinois Municipal Code to be expenses for the purpose of determining any rate or charge.