This page helps Kankakee County, Illinois property owners handle Property Tax tasks, including looking up tax bill information, checking due dates, paying taxes, and knowing which office to contact.

The main online resources are the Kankakee County Property Tax Inquiry and the county’s official online tax payment service. For assessment, exemption, and appeal questions, the Supervisor of Assessments Office handles the assessment side of the tax cycle.

Kankakee County Property Tax Inquiry

Use the Kankakee County Property Tax Inquiry to search property tax information by parcel or name. The system includes parcel and mobile home search options.

  • Parcel number
  • Last name as it appears on the tax bill

For the most accurate search, enter the parcel number when you have it. If you search by name, use the last name exactly as it appears on the tax bill.

  • Select the search type for parcel or mobile home records.
  • Enter at least one supported search field.
  • Review the matching tax bill or property tax record details.
  • Reprint the tax bill only when the bill includes a barcode.

Payment barcode warning: If a payment is received without a barcode, a $5 fee applies.

Online payment and tax bill status

The county’s official payment site is available through Kankakee County online tax payments. The payment site notes that information may be slightly dated and should be used for informational purposes.

If taxes were paid at a local bank but still show as unpaid online, the payment may not have been processed yet. Payments made at local banks before the posted due dates are considered on time.

Delinquent research caution: During delinquent-property processing periods, the accuracy of online information is not guaranteed.

2026 property tax dates

The following dates are listed for 2026 Kankakee County property tax activity. Confirm your own bill and payment status before relying on a deadline.

Date Property tax event
May 22, 2026 Tax statements mailed
June 25, 2026 First installment due
July 17, 2026 Mobile home bills mailed
September 3, 2026 Second installment due
September 24, 2026 Mobile home payments due
September 25, 2026 Last day to pay with personal check and without publication fee
October 6, 2026 Delinquent notices mailed
October 23, 2026 Last day for online tax payments
November 10, 2026 Last day for in-office tax payments
November 12, 2026 Annual tax sale for delinquent properties

Late payments are subject to a 1.5% monthly penalty and interest. Personal and business checks are not accepted after September 25, 2026.

Ways to pay Kankakee County property taxes

The Treasurer’s Office accepts several payment methods. The county also lists property tax payment options for online, bank, in-person, dropbox, and mail payments.

Payment method What to know
Online Online property tax payments are available 24/7 through the official payment system.
Bank or credit union Kankakee County banks and credit unions accept payments except PNC.
In person Pay at the Treasurer’s Office during office hours.
Dropbox Use the 24/7 dropbox at 189 E Court Street, Kankakee, IL 60901.
Mail Send a check or money order to the County Treasurer, 189 E Court Street, Kankakee, IL 60901.

Assessment, exemptions, and appeals

The Kankakee County Supervisor of Assessments Office oversees real property valuation for assessment. Its duties include homestead exemptions, parcel ownership and tax roll updates, assessment-change notices, farmland assessments, and local equalization.

For exemptions, the county directs applicants to the Assessor’s Office rather than the Treasurer’s Office. Available exemption topics include general homestead, senior homestead, senior assessment freeze, persons with disabilities, disabled veterans, returning veterans, and home improvement exemptions.

Assessment complaints are handled through the Kankakee County Board of Review process. A separate complaint must be filed for each parcel appealed, and the complaint form asks for the PIN, site address, current assessed value, requested value, and evidence supporting the appeal.

Property owners can review the Supervisor of Assessments Office for assessment functions and forms, including mailing change requests and homestead exemption applications.

Contact Kankakee County property tax offices

Use the Treasurer’s Office for tax bill and payment questions. Use the Supervisor of Assessments Office for valuation, exemption, ownership, and assessment-cycle questions.

  • Kankakee County Treasurer’s Office, 189 E Court Street, Kankakee, IL 60901
    Phone: (815) 937-2960
    Email: [email protected]
    Hours: Monday - Friday 8:30 AM - 4:30 PM
  • Kankakee County Supervisor of Assessments Office, 189 East Court Street, Kankakee, IL 60901
    Phone: (815) 937-2945
    Hours: Monday through Friday 8:30 am to 4:30 pm

Common questions

Where can I search Kankakee County property tax information?

Use the property tax inquiry search and enter a parcel number or the last name as shown on the tax bill.

Where do I pay Kankakee County property taxes online?

Use the county’s online property tax payment portal. Online payments are listed as available 24/7.

Why does my tax payment still show unpaid after I paid at a bank?

Bank payments may still be processing. Payments taken at local banks before the posted due dates are treated as on time.

Who handles property tax exemptions in Kankakee County?

Exemptions are processed by the County Assessor’s Office. The Treasurer’s Office can help with tax bill and payment questions, but exemption applications go through the assessment office.

Can I pay by personal or business check after September 25, 2026?

No. Personal and business checks are not accepted after September 25, 2026.