On Wednesday, August 20, 2025, IIT phone lines will be down for maintenance. However, you can access tax account information or ask a question online.
Marihuana Retailers Excise (MRE) Tax
Homeowner's Principal Residence Exemption
Property Tax Forfeiture and Foreclosure
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This system can only accept payments for the tax years available on the menu. If you need to pay taxes for a year not available on the menu, you can make a payment using a check or money order. Please refer to the specific tax year and form instructions for more information.