Correct office term: Township or County Assessor.
How the Illinois system works
Assessment can begin at township or county level, while county treasurers collect tax payments.
Assessment may begin with a township assessor or county assessment office. The county Board of Review hears formal complaints, the Treasurer collects tax and the Recorder or Clerk maintains land documents.
AssessmentTownship or County Assessor
Appeal bodyCounty Board of Review
Tax collectionCounty Treasurer
Recorded documentsCounty Recorder or Clerk
Before opening a property portal
- Identify whether the task concerns value, payment, recorded documents or an appeal.
- Use the official office or authorized portal listed on a completed county page.
- Do not assume a county office handles municipal assessment where the state uses city or town systems.
- Confirm filing dates for the current year before submitting an exemption or appeal.