Oak Forest property tax appeals: deadlines and a free assessment check
Is your Oak Forest home assessed higher than similar homes nearby? Check in a minute, then file yourself for free.
Free. No sign-up. Compares your home with the 5 to 10 most similar homes nearby, from the Assessor's own data.
Bremen Township All of Oak Forest
The Assessor window has closed. The Board of Review opens this township later; check the Board's dates page or pre-register on its portal.
- Cook County Assessor notices mailed August 12, 2026; appeals due September 24, 2026. File at the Assessor
- Board of Review opens November 9, 2026; closes December 8, 2026. File at the Board
Last year 2,183 Bremen Township homeowners filed their own Board of Review appeal and 45% won a reduction.
What to do
- Run the free check above. It compares your assessed value per square foot with similar homes in your assessment neighborhood.
- If yours looks high, get the evidence kit from the result page: the comps in the Board's format, recent sales, and a statement to paste into the form.
- File online at the office whose window is open. Filing is free at both. You type the complaint yourself; only you or an Illinois attorney can file for your home.
- Leave an email on the result page and we'll remind you a week and three days before the deadline.
New to this? Read how to appeal, step by step.