Kendall County deadline
Kendall County 2026 assessment complaint deadline
The 2026 county-wide complaint window is open through October 19, 2026.
County-wide model
Kendall County used one complaint window for the whole county in 2026; this is not a township-by-township publication calendar.
2026 Board of Review complaint window
OpenKendall County county-wide
Opened: September 19, 2026
Deadline: October 19, 2026
19 days remain. Confirm the filing method on the official Board of Review site.
Official Kendall County sources
- Kendall County 2026 annual assessments notice
- Kendall County Board of Review rules
- Kendall County Tax Board of Review
Kendall County's 2026 annual assessment notice lists October 19, 2026 as the final filing date. The notice also states that the final filing deadline for a township is 30 days from publication and that the Board of Review cannot accept assessment complaints after that date.
Disclaimer: HomeTaxChallenge is not a government agency and is not affiliated with the Kendall County Assessment Office or Kendall County Board of Review. Always confirm dates and filing instructions on the official county sources above.