Kendall 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.
- Payment deadline
- June 9, 2026 first installment; September 9, 2026 second installment; 1.5% per month penalty after the due date.
Exemptions & appeals
View exemption application (opens in a new tab)Senior relief
The official Kendall County assessment office administers homestead exemptions; current senior-freeze eligibility and the filing date should be confirmed with the Chief Assessing Official.
For a valuation appeal, use the appeal date in the tax and filing section above. Keep your notice, supporting evidence, and proof of submission.