Illinois Property Tax Assessors

DeKalb County, Illinois Tax Assessors' Office

DeKalb County Assessors Phone Number
DeKalb County Chief Assessment Officer
110 East Sycamore Street
Sycamore, Illinois 60178
DeKalb County Assessors Fax Number 815-895-1684 (Fax)

Where is the DeKalb County Tax Assessor's Office?

The DeKalb County Tax Assessor Office is located at 110 East Sycamore Street in Sycamore, Illinois.

What can the DeKalb County Assessor's Office do for me?

The DeKalb County Tax Assessor's Office oversees the appraisal and assessment of properties as well as the billing and collection of property taxes for all taxable real estate located in DeKalb County.

Contact the assessor's office if you need help with paying your property taxes, applying for a homestead exemption or other tax exemption, reporting upgrades to your home, appealing your property tax assessment, or verifying your property records.

Submitting a DeKalb County property tax appeal

If you believe that your house has been unfairly overappraised (i.e. appraised at a value higher than the true market value of the property), you can attempt to get your home re-appraised at a lower value by contacting the Assessor's Office to submit a property tax appeal.

You will have to submit a form describing your property and sufficient proof that it is overassessed, including valuations of similar homes nearby as evidence. If your appeal is accepted, your home assessment (and property taxes) will be lowered as a result.

If you would like to appeal your property, call the DeKalb County Assessor's Office at (815) 895 7120 and ask for a property tax appeal form. Keep in mind that property tax appeals are generally only accepted in a 1-3 month window each year.

For more information and example appeals, see how to appeal your property taxes.

Useful DeKalb County Facts:

The median home value in DeKalb County is between $188,608.00 and $195,992.00. Property tax rates are based on property values.

How can I contact DeKalb County?

You can try contacting the DeKalb County local government directly with any issues the Assessor's Office can't solve. In many counties, certain property records such as deeds are kept in the county courthouse or county archives instead of at the tax assessors' office.

The county seat for DeKalb County is located in the Legislative Center in Sycamore, which is located at 200 N Main Street. You can direct your general inquiries to DeKalb County with the contact info listed below.

DeKalb County Phone Number


DeKalb County Legislative Center Address

Legislative Center
200 N Main Street
Sycamore, IL 60178-1413

Useful DeKalb County Links:

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