McHenry County Property Tax Resources

McHenry County – Rep. Martin McLaughlin (R-Barrington) is hosting a series of Property Tax appeals events this August. Rep. McLaughlin put together the resources below for residents looking to file a Property Tax Appeal for 2025. Any questions regarding the information below can be directed to Rep. McLaughlin’s office at 224-634-8300. See the resources below:

Rep. McLaughlin’s Property Tax Appeal Presentation for McHenry County | https://repmclaughlin.com/wp-content/uploads/sites/56/2025/08/McLaughlin-PTA-McHenry.pdf

McHenry County Assessor | https://www.mchenrycountyil.gov/departments/assessments

McHenry County Board of Review | https://www.mchenrycountyil.gov/departments/assessments/board-of-review

McHenry County Forms and Rules Packet | https://www.mchenrycountyil.gov/departments/assessments/forms-and-rules

Algonquin Township Property Search | https://property.atasr.org

McHenry County File and Complaint Page | https://www.mchenrycountyil.gov/departments/assessments/filing-a-complaint