Mary A. McClellan, CIAO
The Mercer County Supervisor of Assessments Office
100 SE 3rd Street, First Floor
Aledo, IL 61231
Phone: (309) 582-7814*
(*Option 7 on automated menu)
Fax: (309) 582-2541
Lisa McWhorter, Deputy Assessor
MAPPING / GIS Department
Taylor Johnson, CIAO
The Mercer County Supervisor of Assessments Office strives to administer an accurate, fair, uniform, and
timely assessment of all real property in Mercer County in accordance with and as mandated by the Illinois
Property Tax Code. The County Assessment Office is responsible for providing instructions to township
assessors that promote uniformity of assessments throughout the different districts. This office also
administers property tax exemptions, property transfers, parcel map maintenance and serves as the clerk for
the Board of Review.
It is the function of the County Assessment Office to monitor and direct the countywide valuation of real
property for the purpose of real estate taxation. This mandated function includes but is not limited to:
- Provide assistance and information to the individual township assessors
- Monitor all functions for compliance with state statutes and IL Department of Revenue procedures
- Apply exemptions and preferential assessments
- Analyze sales data and conduct sales ratio studies
- Apply equalization factors
- Provide proper taxpayer notification of assessments through mailed notices and publication
- Monitor and direct an unbiased appeal procedure to assure due process
- Prepare abstracts and reports for submission to the Illinois Department of Revenue
- Timely certification of the completed assessment roll to the County Clerk in manner to facilitate
- timely tax calculation and billing as prescribed by statute
- Assist Board of Review in defense of decisions when appealed to the Illinois Property Tax Appeal
- Maintain Parcel Identification Numbering system
- Maintain an accurate county cadastral map system, including line maps, and other property & owner information, to be used by the property tax function, other county offices, other governmental offices and the public, in conjunction with the county's Geographical Information System
Note: To view or download information on this webpage, click on the blue highlighted area. Assessment records can be searched at:
Notice to Taxpayer
Preamble and Publication List of Changes in Assessment for TY2021
Farmland Notice to Taxpayer
CHANGING OF ADDRESS
NO CHANGE OF ADDRESS SHALL BE IMPLEMENTED UNLESS THE PERSON REQUESTING THE CHANGE IS THE OWNER OF THE PROPERTY, A TRUSTEE OR A PERSON HOLDING THE POWER OF ATTORNEY FROM THE OWNER /TRUSTEE OF THE PROPERTY. CHANGE OF ADDRESS FORM - Request for Revision of Real Estate Roll. MAIL TO: MERCER COUNTY ASSESSOR, 100 SE 3RD STREET, ALEDO, IL 61231
FARMLAND REVIEW COMMITTEE
FOR FURTHER INFORMATION (click blue highlight area to view documents) FARMLAND ASSESSMENT REVIEW IN THE DOCUMENTS SECTION. ALSO SEE CERTIFIED VALUES FOR 2017-2019.
CONTACT THE TOWNSHIP ASSESSORS FOR THEIR OFFICE HOURS.
For more information contact the Mercer County Assessment Office: Phone number and fax above.
MERCER COUNTY, STATE OF ILLINOIS TOWNSHIP ASSESSORS DIRECTORY
|Eliza,-Duncan-Perryton (Multi)||Ronald Fullerlove||(309) 781-3167|
|Preemption||Laurie Epperly||(309) 754-9181|
|Richland Grove||Laurie Epperly||(309) 476-8611|
|New Boston-Millersburg(Multi)||Darla Dixon||(309) 737-1222|
|Mercer||Laurie Epperly||(309) 737-9791|
|Greene||David Johnson||(309) 596-2530|
|Rivoli||Cara Craft||(309) 596-2970|
|Keithsburg-Abington-Ohio Grove (Multi)||Janet Dekeyrel||(309) 586-4281|
|Suez-North Henderson (Multi)||Michelle Adams||(309) 464-0069|
Please contact your township assessor for all assessment questions.
General Homestead Exemption
Senior Citizen Homestead Exemption
You must apply for the exemption with the County Assessment Office. You can get an application here (SENIOR CITIZEN HOMESTEAD EXEMPTION FORM) or you can call (309) 582-7814 and one will be mailed to you. Starting in 2014, after the initial application is approved, this exemption will automatically renew. You will be mailed a Senior Citizen Assessment Freeze Homestead Exemption application each subsequent year in the event you may qualify for this exemption.
Senior Citizen Assessment Freeze Homestead Exemption
You must apply for the exemption with the County Assessment Office. You can get an application here (SENIOR ASSESSMENT FREEZE HOMESTEAD EXEMPTION FORM) or you can call (309) 582-7814 and one will be mailed to you. After the initial application is approved, you will be mailed a renewal form each subsequent year.
Persons with Disabilities Homestead Exemption
This exemption reduces the Equalized Assessed Value (EAV) by the amount of the exemption. For the current tax year, the reduction is $2,000.
To be eligible for the exemption, the taxpayer must be "unable to engage in any substantial gainful activity by reason of a medically determinable physical or medical impairment which can be expected to result in death or can be expected to last for a continuous period of not less than 12 months." A person becoming disabled during the assessment year is eligible in that same year.
- A class 2 (or 2A) Illinois Persons with Disabilities Exemption Identification Card from the Illinois Secretary of State's Office. (Illinois Disabled Person Identification Card Application)
- Proof of Social Security Administration disability benefits.
- Proof of Veterans Administration disability benefits.
- Proof of Railroad or Civil Service disability benefits.
- An examination by a physician (must meet the same standards as used by the Social Security Administration). (PHYSICIANS STATEMENT FORM)
- An eligible taxpayer must occupy the property as their primary residence as of January 1 of the assessment year, must be liable for paying the real estate taxes and must be an owner of record or have a legal or equitable interest in the property as evidenced by a written instrument
A taxpayer may not claim the exemption if they claim the Disabled Veterans Homestead Exemption (35ILCS 200/15-169).
You must apply for the exemption with the County Assessment Office. You can get an application here (PTAX 343 - PERSONS WITH DISABILITIES HOMESTEAD EXEMPTION FORM) or you can call (309) 582-7814 and one will be mailed to you. After the initial application is approved, you will be mailed a renewal form each subsequent year.(PHYSICIAN’S STATEMENT FORM)
(ILLINOIS DISABLED PERSON IDENTIFICATION CARD APPLICATION)
Disabled Veterans' Homestead Exemption
The Disabled Veterans' Standard Homestead Exemption provides a reduction in a property's EAV to a qualifying property owned by a veteran with a service-connected disability.
Beginning in tax year 2015, a $2,500 homestead exemption is available to a veteran with a service-connected disability of at least 30% but less than 50%; a $5,000 homestead exemption is available to a veteran with a service-connected disability of at least 50% but less than 70%; veterans with a service-connected disability of at least 70% are exempt from paying property taxes on their primary residence.
- Be an Illinois resident who has served as a member of the U.S. Armed Forces on active duty or state active duty, Illinois National Guard, or U.S. Reserve Forces and not dishonorably discharged.
- Have at least 30% service-connected disability certified by the U.S. Department of Veterans' Affairs.
- Must be the owner of record and occupy the house as of January 1 of the assessment year.
- The property must have a total equalized assessed value of less than $250,000 for the primary residence.
This exemption is available to the unmarried surviving spouse of a service-connected veteran provided that the veteran was in receipt of the exemption prior to his/her death. Additionally, beginning in tax year 2015 and thereafter, the unmarried surviving spouse of a service member killed in the line of duty is exempt from paying property taxes on the primary residence. Once approved, qualifying veterans and surviving spouses must file an annual application by their counties' deadlines to continue to receive this exemption.
You must apply for the exemption with the County Assessment Office. You can get an application (PTAX-342) or renewal form (PTAX-342R) here. or you can call (309) 582-7814 and a form will be mailed to you. After the initial application is approved, you will be mailed a renewal form each subsequent year.
Returning Veterans' Homestead Exemption
- Be an Illinois resident who has served as a member of the U.S. Armed Forces, Illinois National Guard, or U.S. Reserve Forces.
- Returning from active duty in an armed conflict involving the armed forces of the United States during the assessment year.
- A veteran who dies during his or her active duty service is eligible to receive this exemption.
- Owned or had a legal or equitable interest in the property used as the principal place of residence on January 1 of the assessment year.
- Must be liable for the payment of the property taxes.
This exemption may be claimed only in the year in which the eligible veteran taxpayer returns from active duty in an armed conflict. If a veteran taxpayer receives this exemption, then is again deployed on active duty in an armed conflict and returns again in a subsequent year, the veteran taxpayer is eligible for this exemption again if the other conditions are met.
You must apply for the exemption with the County Assessment Office. You can get an application here (PTAX-341 RETURNING VETERANS HOMESTEAD EXEMPTION FORM) or you can call (309) 582-7814 and one will be mailed to you. After the initial application is approved, you will be mailed a renewal form each subsequent year.