Assessment Notices

Lake County property owners will receive their property assessment notices in the mail during mid to late summer. It’s important for taxpayers to read, understand and check this notice for accuracy as it contains important information about their property. Taxpayers are encouraged to contact their local township assessor’s office if they have questions regarding the valuation of their property.

After assessments are published for each township, a property owner has 30 days to appeal their assessment if they so desire. Scroll down to view a schedule of publication dates and appeal deadline dates by township. 

Understand Your Property Assessment

Staff members from the Chief County Assessment Office are available during regular business hours to assist Lake County property owners who need help understanding or appealing their assessments, or who want to learn about homestead exemption, which can potentially provide tax relief.  Due to the COVID-19 Pandemic, please call with your questions or concerns prior to visiting our office.

Chief County Assessment Office: 18 N. County St., 7th Floor, Waukegan
Phone: 847-377-2000
Hours: 8:30 a.m. - 5 p.m., Monday through Friday

Help Center

Appeals Must Be Filed Electronically

Property owners can appeal their assessment through the Lake County Board of Review on their own. No attorney is required for a residential appeal. The deadline date for each property is listed on the assessment notice.

Prior to filing a formal appeal to the Board of Review, property owners are encouraged to contact their local township assessor’s office to discuss their concerns.

To file an appeal, all property owners need to begin the process using the Chief County Assessment Office’s SmartFile E-Filing Portal. For property owners in all but five of Lake County’s townships, the entire appeal process can be conducted through this portal.

Online Appeal Filing

Special Instructions for Property Owners in Cuba, Ela, Grant, Libertyville and Vernon townships

The assessment appeal process for these five townships is different than the other 13 townships in Lake County. That’s because assessors in these five townships have chosen to use a different software system from what the county offered. This decision impacts how taxpayers in these townships review and appeal their assessments.

View the instructions for appealing a property assessment in Cuba, Ela, Grant, Libertyville or Vernon township.


2023 Filing Deadlines and Decision Mailed Dates

TownshipNewspaperAssessment Roll Publication Date
Final Filing DatesFindings MailedPTAB Final Filing Date
Antioch Lake County Journal09/07/202310/09/202301/09/202402/08/2024
AvonLake County Journal 09/07/202310/09/202301/09/202402/08/2024
Benton Lake County News- Sun 08/03/2023
09/05/2023
01/09/202402/08/2024
Cuba Barrington Courier Review08/03/2023
09/05/2023
01/09/202402/08/2024
Ela Lake Zurich Courier 08/17/202309/18/202301/09/202402/08/2024
Fremont Mundelein Review 08/24/202309/25/202301/09/202402/08/2024
Grant Lake County Journal 08/31/202310/02/202301/09/202402/08/2024
Lake Villa Lake County Journal 09/21/202310/23/202301/09/202402/08/2024
Libertyville Libertyville Review and Vernon Hills Review 08/17/202309/18/202301/09/202402/08/2024
Moraine Highland Park News 08/24/202309/25/202301/09/202402/08/2024
Newport Lake County News- Sun 08/10/202309/11/202301/09/202402/08/2024
Shields Lake Forester 09/28/202310/30/202301/09/202402/08/2024
Vernon Buffalo Grove Countryside, Lincolnshire Review and Vernon Hills Review 08/10/202309/11/202301/09/202402/08/2024
Warren Lake County News- Sun 08/31/202310/02/202301/09/202402/08/2024
Wauconda Lake County Journal 08/24/202309/25/202301/09/202402/08/2024
Waukegan Lake County News- Sun 07/27/202308/28/202301/09/202402/08/2024
West Deerfield Deerfield Review and Lake Forester 08/31/202310/02/202301/09/202402/08/2024
Zion Lake County News- Sun 08/17/202309/18/202301/09/202402/08/2024

Things to Know

Homestead exemptions can provide tax relief to eligible homeowners, as it exempts taxable value prior to the calculation of property taxes. In Illinois, exemptions are available for general homestead, seniors, disabled persons, disabled veterans, returning veterans (within the last two years) and home improvements. Learn about the homestead exemptions available.

Property information can be searched free of charge at tax.lakecountyil.gov. Enter an address or property PIN number to view tax summaries, property history, exemptions, permits, sketches, sales history and a host of other property characteristics.

Seek help if you need assistance understanding your assessment, appealing online, or applying for homestead exemptions. Remember, an attorney is not needed for a residential appeal. Receive help by going to a Tax Assessment Help Center, or contacting your township assessor or the Chief County Assessment Office.