For the full picture, see our guide to the Illinois Property Tax Appeal Board.
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Can I appeal beyond the Board of Review?
Yes. After the Board of Review's final decision you may appeal to the Illinois Property Tax Appeal Board (PTAB), a state agency—but only if you first filed with the Board of Review. The PTAB deadline is 30 days from the later of the Board of Review's written decision or the date the Board sends its final action on your township to the Assessor; a petition sent by mail counts as filed on its postmark date. Strong evidence (comps, appraisals, commercial income data) is important. A Circuit Court tax objection (after paying the bill) is another option.
Are You Overpaying?
Most Cook County homeowners are over-assessed. Check your potential savings in under a minute.
WHY CHOOSE US?
In 2025 our clients were 1.7 times as likely to win a reduction at the Assessor, and 1.3 times as likely at the Board of Review, as clients of attorneys who filed 100+ residential appeals (2.2 times at the Assessor in 2026 so far).
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3-tier escalation: Assessor → BOR → PTAB
Source: Cook County Assessor and Board of Review public appeal records. Past results do not guarantee a similar outcome.
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