Jo Daviess 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
- May 2026.
- Payment deadline
- June 8, 2026 first installment; September 8, 2026 second installment.
- Assessment appeal
- The 2025 assessment cycle (payable 2026) was closed; the next complaint may be filed after 2026 assessment notice publication. No single 2026 calendar date was published.
Exemptions & appeals
View exemption application (opens in a new tab)Exemption filing
May 31, 2026 for the published Senior Homestead Exemption form; July 1, 2026 for the published 2026 Senior Freeze form.
Senior relief
Jo Daviess County's 2026 forms state that the Senior Homestead Exemption deadline was May 31, 2026. The 2026 Senior Freeze deadline was July 1, 2026; eligibility includes age 65 by December 31, 2026 and 2025 household income no greater than $75,000.
For a valuation appeal, use the appeal date in the tax and filing section above. Keep your notice, supporting evidence, and proof of submission.
More exemption & appeal guidance →