Sec. 50. Late filing penalties.
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/il/chapter-50/act-45/50A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
Sec. 50. Late filing penalties. Late filing penalties may not exceed 5% of the amount of tax required to be shown as due on a return. A late filing penalty may not apply if a failure to file penalty is imposed by the unit of local government. A local tax administrator may determine that the late filing was due to reasonable cause and abate the penalty.