You must use the
Schedule ICR, Illinois Credits, to calculate your property tax credit. This credit is generally 5% of the property tax you paid during the tax year for real estate that included your principal residence. For more information about the property tax credit, please refer to
Publication 108, Illinois Property Tax Credit.
Note: You must include your Property Index Number on Schedule ICR, Illinois Credits, if you are claiming a property tax credit. You may get this number from your property tax bill, your assessment notice, your mortgage lender (if your property taxes are escrowed), or from the county assessor's office in which the property is located. In some counties this number is also referred to as the parcel number or permanent number. Failure to provide this information will result in processing and refund delays.