Forms and Documents

Please see Board of Review Rules for additional filing requirements.

Preferential Assessment Application Forms

• Farmland Preferential Assessment: The Township Assessor annually determines the eligibility of individual properties for farmland assessments. Please contact them for more information regarding their application process.
• Conservation Stewardship Preferential Assessment: Certain property that is subject to a land management plan that has been approved by the Illinois Department of Natural Resources may receive a preferential assessment. Application forms and other information are available directly from the IL-DNR's website.
• Housing Opportunity Area Tax Abatement: This program may provide a reduced assessed valuation for certain property leased to a Housing Choice Voucher Holder. Information and application forms for this program are available from the DuPage County Housing Authority.
• Historic Residence Assessment Freeze Law: This program provides tax incentives to owner-occupants of certified historic residences who rehabilitate their homes. Application forms and other information are available directly from the Illinois Historic Preservation Agency's website.

A basic explanation of these programs is available on our Preferential Assessments webpage.

Disaster Area Application for Reassessment

PTAX-245 Application to request reassessment of property under Section 13-5 of the Property Tax Code (35 ILCS 200/13-5) based on substantial damage caused by a disaster in a county that has been declared a major disaster area by the President of the United Sates or the Governor of the State of Illinois.

Assessment Abstract Reports

Counties are required to file a PTAX-260-A Form with the Illinois Department of Revenue on an annual basis. This report list locally assessed parcel counts and total locally assessed value totals by property class for individual townships and for the entire county. This report does not include property assessed by the State. The totals do not include the loss of taxable assessed value resulting from the granting of the General Homestead (excluding life care facilities and mixed use properties), Senior Citizens Homestead (excluding life care facilities and mixed use properties), and the Senior Citizens Assessment Freeze Homestead Exemptions. Column number 7 however does reflect the taxable value of dual valuation properties including Open Space and Conservation Easement preferential assessments along with value loss due to the granting of Homestead Improvement, Veterans/Fraternal Organizational Assessment Freeze, and Disabled Veterans Exemptions and the taxable value of certain preferential assessment types such as Historic Residence Assessment Freeze, Demonstration Homes and Subdivides Property Assessments.

Sale to Assessment Ratio Reports

Sale to assessment ratio studies are compiled by the Illinois Department of Revenue. These reports include statistical measurements of assessment accuracy and uniformity.

Document Center

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Documents sorted by SEQ in Ascending Order within category RESET