Official Government Website
Departments: Treasurer / Collector

New from the Treasurer

The DeKalb County Treasurer’s Office will be mailing out 2020 Property Tax Bills soon. To ensure your bill arrives in a timely manner, it is important that the county has your correct mailing address.

If you have moved in the last year, or need to change the mailing address for your tax bill, please complete the Change of Address form:
The form needs to be completely filled out, including the owner’s signature, and returned to:

  • By mail: Chief County Assessments Office
                  DeKalb County Admin Bldg
                   110 E Sycamore Street
                   Sycamore, IL 60178
  • By email:

For questions about changing your address, contact the Chief County Assessments Office directly at 815-895-7120. For all other property tax-related questions, contact the Treasurer’s Property Tax Helpline at 815-895-7337.

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