Supervisor of Assessments

In Jasper County, the Chief County Assessment Officer is elected by the residents of Jasper County. Once elected to the position it is for a 4-year term of office. To be eligible for election, the candidate must meet the education and experience qualifications outlined in the Illinois Property Tax Code, including passing an examination conducted by the Illinois Department of Revenue to determine competency. Tom Matson was first appointed as the Chief County Assessment Officer on August 10, 2023.

• Assist taxpayers with inquiries and concerns
• Maintain an up-to-date property records system
• Provide information and assistance to Township Assessors
• Collect and analyze sales data
• Perform Sales Ratio Studies
• Provide taxpayers with proper notification of assessments
• As required by the Illinois Property Tax Code, act as the equalization authority for the County, examining the assessments in the County and equalizing the assessments by increasing or reducing assessments in the County or any area therein, so that the assessments will be at 33-1/3% of fair cash value
• Administer Property Tax Exemption Programs
• Serve as Clerk to the Jasper County Board of Review
• Serve as Chairman of the Jasper County Farmland Assessment Review Committee

Number of Parcels: 18,463
Equalized Assessed Value: $285,376,035

Equalization is the application of a uniform percentage increase or decrease to assessed values of various areas or classes of property to bring assessments on average, to the statutory level of assessment of 33 1/3%. Both local assessment officials and the Illinois Department of Revenue are responsible for equalizing assessment levels.
 The Illinois Department of Revenue Publication 136 gives a detailed overview of the property assessment and equalization process.

An appeal to affect the assessment for the current tax year shall be filed within 30 calendar days after the date of publication of the assessment changes.

Please contact the Supervisor of Assessments Office to obtain parcel-specific appeal forms.



All Appeals will be submitted to the Board of Review.

Jasper County Board of Review Members

• John Miller
• Brock Kessler
• Ron Zwilling

Board of Review Rules Packet


An appeal to affect the assessment for the current tax year shall be filed within 30 calendar days after the date of publication of the assessment changes.

Please contact the Supervisor of Assessments Office to obtain parcel-specific appeal forms.

Jasper County Board of Review Members

• John Miller
• Brock Kessler
• Ron Zwilling

provides for an annual $6,000 reduction in the equalized assessed value of the property that you own or have a leasehold interest in, occupy as your principal residence during the assessment year, and are liable for the payment of property taxes.

is an exemption allowed for new improvements to existing structures on homestead property or the rebuilding of residential structures following a catastrophic event. The exemption is limited to a maximum of $25,000 per year in assessed value and continues for four years from the date the improvement or rebuilding is completed and occupied.

exemption allowed for new improvements to existing structures on homestead property or the rebuilding of residential structures for modification listed under the Home Services Program. This could include, but not limited to the installation of ramps and grab-bars, widening doorways, and other changes to enhance the independence of a disabled or elderly individual. The exemption is limited to a maximum of $75,000 per year in fair cash value and continues for seven (7) years from the date the improvement or rebuilding is completed and occupied, not the date you file this application. Note: You may have more than one homestead improvement exemption on the same property. However, you cannot receive a homestead improvement exemption for any other property in Illinois for the same assessment year and the total exemption cannot be more than $75,000 per year.

provides for an annual $5,000 reduction in the equalized assessed value of the property that you own or have a leasehold interest in, occupy as your principal residence during the assessment year, and are liable for the payment of property taxes.

allows to have your home’s equalized assessed value (EAV) “frozen” at a base year value and prevent or limit any increase due to inflation. Qualifications: taxpayer must be 65 or older, total household income is $65,000 or less, on January 1, at that year, used the property as your principal place of residence, — owned the property, or had a legal or equitable interest in the property as evidenced by a written instrument, or had a leasehold interest in the property used as a single-family residence, and — were liable for the payment of property taxes.

provides an annual $2,000 reduction in the equalized assessed value (EAV) of the property owned and occupied as the primary residence on January 1 of the assessment year by a person with a disability who is liable for the payment of property taxes.

provides a $5,000 reduction in the equalized assessed value (EAV) of the veteran’s principal residence for two consecutive assessment (tax) years, the tax year and the following year that the veteran returns from active duty in an armed conflict involving the armed forces of the United States. The veteran must own and occupy the property as his or her principal residence on January 1 of each assessment year.

provides an annual reduction in the equalized assessed value (EAV) of a primary residence occupied by a veteran with a disability, or the veteran’s surviving spouse, on January 1 of the assessment year or on a prorated basis during the time of occupancy for the assessment year. If the veteran has a service-connected disability of 30% or more but less than 50%, then the annual exemption is $2,500; 50% or more but less than 70%, then the annual exemption is $5,000; 70% or more, then the residential property is exempt from taxation under this Code. Beginning with tax year 2015, the surviving spouse of a veteran killed in the line of duty can qualify for this exemption.

an additional reduction up to $70,000 if the Federal Government has approved payment to construct or modify your home if you are a disabled veteran with a service-connected disability.