Champaign County deadline
Champaign County 2026 assessment complaint deadline
The 2026 county-wide complaint window closed on September 10, 2026.
2026 Board of Review complaint window
ClosedChampaign County county-wide
Opened: July 1, 2026
Deadline: September 10, 2026
The filing deadline has passed. You can still review the public record, address factual errors with the assessor, and prepare for the next assessment cycle.
Official Champaign County sources
Champaign County Board of Review accepts assessment complaints from July 1 to September 10. HomeTaxChallenge verified that window on the Champaign County Board of Review site — the 2026 window closed September 10, 2026. Check with your assessor or the Board of Review for the next year's dates before filing.
Disclaimer: HomeTaxChallenge is not a government agency and is not affiliated with the Champaign County Assessment Office or Champaign County Board of Review. Always confirm dates and filing instructions on the official county sources above.