Forms and Documents
Homestead Exemption Application
Board of Review Assessment Appeal
Please see Board
of Review Rules for additional filing requirements.
Non-Homestead Exemption Application Forms
- PTAX-300 is used to apply for all non-homestead
exemption except for properties used for religious purposes or those owned by
the State of Illinois or the Federal Government.
- PTAX-300-FS is used to apply for a non-homestead
exemption under 35 ILCS 200/15-50 or 15-55 (federal or state agency).
- PTAX-300-H is used to apply for a non-homestead exemption
under 35 ILCS 200/15-86 (hospitals).
- PTAX-300-R is used
to apply for a non-homestead exemption under 35 ILCS 200/15-40
Preferential Assessment Application
Application for Open Space Property Assessment
- PTAX-337-R Combined Application for Conservation
Right Public Benefit Certification and for Reduced Assessed Valuation of
Property (File with the Illinois Department of Natural Resources)
- PTAX-762 Application for
Model Home Assessment
Notice of Status Change to County by Owner of Model Home
- PTAX-763 Application for Veterans Organization
- PTAX-764 Application for assessment freeze for
certain fraternal organizations. Typically, Masonic Lodges will qualify in this
- PTAX-765 Application for assessment freeze for
certain fraternal organizations. Typically, Elks and Moose Lodges will qualify
in this category.
- PTAX-766 Application for assessment freeze for
certain fraternal organizations. Typically, Knights of Columbus Lodges will
qualify in this category.
- Farmland Preferential Assessment: The
annually determines the eligibility of individual properties for farmland
assessments. Please contact them for more information regarding their
- 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
- 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
- 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.
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.
Tax Year: 1999 | 2000
| 2001 | 2002 | 2003
| 2004 | 2005 | 2006
| 2007 | 2008 | 2009
| 2010 | 2011 | 2012 | 2013 |
Sale to Assessment Ratio
Sale to assessment ratio studies are compiled by the Illinois
Department of Revenue. These reports include statistical measurements of
assessment accuracy and uniformity.
IL-DOR Summary Reports:1999 | 2000
| 2001 | 2002 | 2003 | 2004 | 2005
| 2006 | 2007 | 2008 | 2009
Report) | 2012
(Full Report) | 2013 (Full Report) | 2014 (Full Report)
IL-DOR Detail Sales Listing (Individual Sales Used in Sales Ratio Reports):
2005 | 2006 | 2007
| 2008 | 2009 | 2010