Hamilton 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
- July 1, 2026
- Payment deadline
- August 14, 2026 and September 14, 2026; penalties begin after the respective due dates according to the official Treasurer notice.
Exemptions & appeals
View exemption application (opens in a new tab)Senior relief
The official Supervisor of Assessments page identifies the Senior Homestead Exemption and Senior Citizens Assessment Freeze. The freeze is for qualifying owners age 65 or older with household income of $65,000 or less; confirm the current filing requirements with the office.
For a valuation appeal, use the appeal date in the tax and filing section above. Keep your notice, supporting evidence, and proof of submission.