Kane County deadline tracker

Kane County 2026 assessment appeal deadlines

In Kane County, you don't get one countywide deadline. Each township publishes its assessment list in a local newspaper, then you generally have about 30 days to file with the Board of Review. City limits are not township lines — check your parcel.

How to use this tracker Find your township → note its status → if open, run a free estimate; if TBD, get an alert; if closed, review next-step options.
Open — You can still file for 2026. TBD — The assessment list is not published yet. Closed — The 2026 Board of Review window ended.

Verified against Kane County sources: October 2, 2026. Statuses use America/Chicago time.

Open for 2026 filing

5 townships
Open

Burlington Township

Deadline: October 28, 2026

9 days left. Published September 28, 2026 in the Fox Valley Daily Herald.

Check my property
Open

Campton Township

Deadline: October 26, 2026

7 days left. Published September 24, 2026.

Check my property
Open

Elgin Township

Deadline: November 2, 2026

14 days left. Published October 2, 2026 in the Elgin Courier News.

Check my property
Open

Hampshire Township

Deadline: October 26, 2026

7 days left. Published September 24, 2026.

Check my property
Open

Plato Township

Deadline: October 21, 2026

2 days left. Published September 21, 2026 in the Fox Valley Daily Herald.

Check my property

Publication date still TBD

0 townships

2026 filing window closed

11 townships
Closed

Big Rock Township

2026 window closed: August 17, 2026

Review record corrections, exemptions, and preparation for the next filing cycle.

See options if you missed the window
Closed

Blackberry Township

2026 window closed: July 27, 2026

Review record corrections, exemptions, and preparation for the next filing cycle.

See options if you missed the window
Closed

Kaneville Township

2026 window closed: October 13, 2026

Review record corrections, exemptions, and preparation for the next filing cycle.

See options if you missed the window
Closed

Rutland Township

2026 window closed: September 18, 2026

Review record corrections, exemptions, and preparation for the next filing cycle.

See options if you missed the window
Closed

Saint Charles Township

2026 window closed: July 20, 2026

Review record corrections, exemptions, and preparation for the next filing cycle.

See options if you missed the window
Closed

Sugar Grove Township

2026 window closed: August 24, 2026

Review record corrections, exemptions, and preparation for the next filing cycle.

See options if you missed the window

Deadline alerts

Get an email when a TBD township publishes

All 2026 Kane County township publication dates are posted. There are no TBD township alerts open right now.

Official Kane County sources

Kane County assessment complaint deadlines generally fall about 30 calendar days after a township's assessment list is published. City limits and township boundaries are not the same.

Disclaimer: HomeTaxChallenge is not a government agency and is not affiliated with the Kane County Assessment Office or Kane County Board of Review. Always confirm dates on the official county sources above. This is not legal, tax, or appraisal advice.