IL HB5356

Amends the Property Tax Code Section 20-175 to modify refund eligibility for Cook County claims of erroneous assessments or overpayments.

Allows refund claims in Cook County if filed after September 1, 2011 (removing the previous September 1, 2011 to September 1, 2012 window) for cases where the refund right arose more than 5 years prior but not earlier than January 1, 2000.

Removes the $350,000 aggregate cap on total taxes and interest refunded for all claims under this special Cook County provision.

Requires Cook County Treasurer to process refunds in the order claims are received and proportionately reduce tax distributions to affected taxing districts to cover refund amounts.

Becomes effective immediately upon enactment and prevents home rule units from regulating refund claims inconsistently with this statute.