Clark County, IllinoisProperty records & tax offices
Links open the listed public-office or service-provider website in a new tab. This directory does not collect payments.
Find the right property record
Use the property portal for ownership and assessed value, the collector for a bill or balance, and the map for parcel location. Have the address, owner name, or parcel number ready.
Tax bills & filing dates
These are the dates and qualifications recorded in the directory. Confirm your tax year and current deadline with the official office and your property’s notice.
- Tax bill mailing
- June 22, 2026; the official county Treasurer page states 2026 real-estate tax bills were mailed that day.
- Payment deadline
- July 30, 2026 and September 30, 2026; the official county Treasurer page states these are the two installment due dates, with 1.5% monthly penalty after the due dates.
Exemptions & appeals
View exemption application (opens in a new tab)Senior relief
Illinois offers senior homestead and senior assessment-freeze relief programs; exact eligibility, income limits, application forms, and deadlines are administered through the county Supervisor of Assessments and must be confirmed locally.
For a valuation appeal, use the appeal date in the tax and filing section above. Keep your notice, supporting evidence, and proof of submission.