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 Welcome to Antioch Township Assessors Office

Our Office hours are Monday - Friday 8:30AM - 4:30PM

Same day appointments MAY be available
Walk-ins will be allowed only if there are open slots on the calendar

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WE MOVED TO 1275 Main St

We relocated just up the road past Tractor Supply.

2026 Appeals

Publishing: September 17, 2026
Deadline to Appeal: October 19, 2026

Antioch 2026 Multiplier is 1.0559 (+5.59%)
In Lake County, on an annual basis the Chief County Assessment Officer determines the level of assessment in each township based upon the sales transactions that occurred in the three years prior to the assessment date. 

Blue Sheets for 2026 are mailed out by Lake County 

For dates or info visit the county website at lakecountyil.gov/4219/Assessment-Notices

Have you filed for your exemptions?

There are different exemptions that will reduce or defer an increase in the equalized value of your property.

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Are you on our email list?
We keep our residents in loop regarding any upcoming exemption renewals, assessment sheets, tax bills or other news.

Property Tax Bills

2025 Property Tax Bills bill be mailed out April 27, 2026

Due Dates
1st Installment due June 4, 2026 
2nd Installment due Sept 4, 2026

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For Any Tax Related Questions
Call Lake County Treasurer's Office 847-377-2323
Or visit lakecountyil.gov/198/Treasurers-Office

Office Hours 

Monday – Friday  8:30AM-4:30PM 

*Hours subject to change due to staffing*

 NEW LOCATION 

 1275 Main Street 

Antioch, Illinois 60002

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