35 ILCS 200/12-30
2021 Illinois Compiled Statutes|Chapter 35 - REVENUE|35 ILCS 200/ - Property Tax Code.|Title 3 - Valuation and Assessment

Sec. 12-30. Mailed notice of changed assessments; counties of less than  3,000,000.(a) In every county with less than 3,000,000 inhabitants, in addition to  the publication of the list of assessments in each year of a general assessment  and of the list of property for which assessments have been added or changed,  as provided above, a notice shall be mailed by the chief county assessment  officer to each taxpayer whose assessment has been changed since the last  preceding assessment, using the address as it appears on the assessor's  records, except in the case of changes caused by a change in the county  equalization factor by the Department or in the case of changes resulting  from equalization by the chief county assessment officer under Section 9-210,  during any year such change is made. The notice may, but need not be, sent by a  township assessor.(b)  The notice sent under this Section shall include the following:(1) The previous year's assessed value after board of     review equalization.(2) Current assessed value and the date of that     valuation.(3) The percentage change from the previous assessed     value to the current assessed value.(4) The full fair market value (as indicated by     dividing the current assessed value by the median level of assessment in the assessment district as determined by the most recent 3 year assessment to sales ratio study adjusted to take into account any changes in assessment levels since the data for the studies were collected).(5) A statement advising the taxpayer that     assessments of property, other than farm land and coal, are required by law to be assessed at 33 1/3% of fair market value.(6) The name, address, phone number, office hours,     and, if one exists, the website address of the assessor.(7) Where practicable, the notice shall include the     reason for any increase in the property's valuation.(8) The name and price per copy by mail of the     newspaper in which the list of assessments will be published and the scheduled publication date.(9) A statement advising the taxpayer of the steps to     follow if the taxpayer believes the full fair market value of the property is incorrect or believes the assessment is not uniform with other comparable properties in the same neighborhood. The statement shall also (i) advise all taxpayers to  contact the township assessor's office, in those counties under township organization, first to review the  assessment, (ii) advise all taxpayers to  file an appeal with the board of review if not satisfied with the assessor review, and (iii) give the phone number to call for a copy of the board of review rules.(10) A statement advising the taxpayer that there is     a deadline date for filing an appeal with the board of review and indicating  that deadline date (30 days following the scheduled publication date).(11) A brief explanation of the relationship between     the assessment and the tax bill (including an explanation of the equalization factors) and an explanation that the assessment stated for the preceding year is the assessment after equalization by the board of review in the preceding year.(12)  In bold type, a notice of possible eligibility     for the     various homestead exemptions as provided in Section 15-165     through Section 15-175 and Section 15-180.(c) In addition to the requirements of subsection (b) of this Section, in every county with less than 3,000,000 inhabitants, where the chief county assessment officer maintains and controls an electronic database containing the physical characteristics of the property, the notice shall include the following:(1) The physical characteristics of the taxpayer's     property that are available from that database; or(2) A statement advising the taxpayer that detailed     property characteristics are available on the county website and the URL address of that website.(d) In addition to the requirements of subsection (b) of this Section, in every county with less than 3,000,000 inhabitants, where the chief county assessment officer does not maintain and control an electronic database containing the physical characteristics of the property, and where one or more townships in the county maintain and control an electronic database containing the physical characteristics of the property and some or all of the database is available on a website that is maintained and controlled by the township, the notice shall include a statement advising the taxpayer that detailed property characteristics are available on the township website and the URL address of that website.(e) Except as provided in this Section, the form and manner of  providing the information and explanations required to be in the notice shall  be prescribed by the Department. (Source: P.A. 96-122, eff. 1-1-10.)