Kendall County Annual Assessments
NOTICE TO KENDALL COUNTY TAXPAYERS: ASSESSED VALUES FOR 2026
FINAL FILING DATE IS OCTOBER 19, 2026
A complete list of assessments for the current assessment year can be found on the Current Assessments page
| Valuation Date1 | January 1, 2026 |
| Required level of assessment2 | 33.33% |
| Valuation based on sales from3 | 2023, 2024, 2025 |
Equalization Factors
Publication is hereby made for equalized assessed valuations for real property in this township in accordance with 35 ILCS 200/12-104. As required by 35 ILCS 200/9-2105 and 35 ILCS 200/10-1156, the following equalization factors have been applied to bring the assessments to the statutorily required three-year median level of 33.33%
| Property | Equalization Factor |
|---|---|
| Farm, Lots, Lands | 1.0000 |
| Farm Improvements | 1.0000 |
| Township | Median Level of Assessment | Current Median Ratio | Equalization Factor |
|---|---|---|---|
| Big Grove | 33.33% | 31.60% | 1.0547 |
| Bristol | 33.33% | 33.33% | 1.0000 |
| Fox | 33.33% | 33.33% | 1.0000 |
| Kendall | 33.33% | 33.33% | 1.0000 |
| Lisbon | 33.33% | 33.33% | 1.0000 |
| Little Rock | 33.33% | 33.33% | 1.0000 |
| Na-Au-Say | 33.33% | 33.33% | 1.0000 |
| Oswego | 33.33% | 33.33% | 1.0000 |
| Seward | 33.33% | 33.33% | 1.0000 |
Assessor Contact Information
Pursuant to 35 ILCS 200/10-1157, the Farmland assessments for the 2026 assessment year will increase by 10% of the preceding year’s median cropped soil productivity index as certified by the Illinois Department of Revenue with data provided by the Farmland Assessment Technical Advisory Board resulting in a $56.71 per acre increase for each soil productivity index.
Questions about these valuations should be directed to:
| Township | Assessor | Phone |
|---|---|---|
| Big Grove Township | Ray Eddy | 815-695-5866 |
| Bristol Township | Mary Maher-Bartalone | 630-553-3940 |
| Fox Township | Cathy Scalise | 630-553-6525 |
| Kendall Township | Cathy Scalise | 630-553-6525 |
| Lisbon Township | Susan West | 815-254-7708 |
| Little Rock Township | Carly Wade | 630-552-3328 |
| Na-Au-Say Township | Susan West | 815-254-7708 |
| Oswego Township | Brian Hauser | 630-554-3214 |
| Seward Township | Susan West | 815-254-7708 |
Appeals
Property in all Townships, other than farmland and coal, is to be assessed at a 33.33% median level of assessment, based on the fair cash value of the property. You may check the accuracy of your assessment by dividing your assessment by the median level of assessment. The resulting value should equal the estimated fair cash value of your property. If the resulting value is greater than the estimated fair cash value of your property, you may be over-assessed. If the resulting value is less than the fair cash value of your property, you may be under-assessed. You may appeal your assessment to the Board of Review.
Appeal Forms
Appeal Process
If you believe your property’s fair cash value is incorrect or that the equalized assessed valuation is not uniform with other comparable properties in the same neighborhood, the following steps should be taken:
- Contact your township assessor’s office to review the assessment.
- If not satisfied with the assessor review, taxpayers may file a complaint with the Kendall County Board of Review. For complaint forms, instructions, and the Rules and Procedures of the Board of Review, call (630) 553-4146 or visit https://kendallcountyil.gov for more information.
- The final filing deadline for your township is 30 days from this publication date. After this date, the Board of Review is prohibited by law from accepting assessment complaints for properties in this township. For more information on complaint deadlines, call (630) 553-4146 or visit https://kendallcountyil.gov.
Your property may be eligible for homestead exemptions, which can reduce your property’s taxable assessment. For more information on homestead exemptions, call (630) 553-4146 or visit https://kendallcountyil.gov/assessments.
Tax Bill Calculation
Your property tax bill will be calculated as follows: \[ \begin{equation} \begin{array}{rr} &\textsf{Final Equalized Assessed Value} \\ - & \textsf{Exemptions} \\ & \hline \textsf{Taxable Assessment} \end{array} \end{equation} \] \[\Downarrow\] \[ \begin{equation} \begin{array}{rr} & \textsf{Taxable Assessment} \\ \times & \textsf{Current Tax Rate} \\ & \hline \textbf{Total Tax Bill} \end{array} \end{equation} \]
All equalized assessed valuations are subject to further equalization and revision by the Kendall County Board of Review as well as equalization by the Illinois Department of Revenue.