The Assessor (CCAO) appeal window for Hanover closes December 7, 2026. Deadlines are set township-by-township — see the deadlines page for the current dates.
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When is the Hanover property tax appeal deadline?
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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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Source: Cook County Assessor and Board of Review public appeal records. Past results do not guarantee a similar outcome.
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