County Townships Open for 2026 Property Tax Year:
Tax Appeals Lake County deadlines prior to County.
Lake County Tax Appeal Deadline Dates:
Antioch: OPEN
Avon: September 28th
Benton: CLOSED
Cuba: September 21st
Ela: CLOSED
Fremont: September 28th
Grant: September 14th
Lake Villa: October 5th
Libertyville: September 21st
Moraine: October 5th
Newport: October 5th
Shields: OPEN
Vernon: OPEN
Warren: September 8th
Wauconda: September 14th
Waukegan: September 8th
West Deerfield: September 14th
Zion: September 14th
McHenry County Tax Appeal Deadline Dates:
Chemung: CLOSED
Alden: OPEN
Burton: OPEN
Hebron: OPEN
Richmond: CLOSED
Dunham: OPEN
Hartland: September 25th
Greenwood: CLOSED
McHenry: OPEN
Marengo: OPEN
Seneca: OPEN
Dorr: CLOSED
Nunda: OPEN
Riley: OPEN
Coral: September 17th
Grafton: CLOSED
Algonquin: OPEN
DuPage County Tax Appeal Deadline Dates:
Addison: OPEN
Bloomingdale: OPEN
Downers Grove: OPEN
Lisle: OPEN
Milton: OPEN
Naperville: OPEN
Wayne: September 28th
Winfield: OPEN
York: October 5th