McHenry Township Assessor Forum

The McHenry Township Assessor is holding two Assessor Forum opportunities for township taxpayers.  These are informative sessions to provide information, answer questions and give a general overview of the Assessor’s role in the Property Tax Cycle. The dates, location and times are listed below.

 Wednesday, May 22, 2024 from 10:00-11:00 am and
Wednesday, June 5th, 2024 from 6:30-7:30 pm

McHenry Township Town Hall: 3703 N Richmond Rd, Johnsburg, IL 60051

Please RSVP to the Assessor’s Office at (815) 385-0175 or email so that we may adequately prepare.

Click here to view the flyer.

Message From Your Assessor, Mary Mahady

Hello McHenry Township Residents!

As I write this, it’s hard to believe that it’s March of 2024 already! It has been a busy time for us here in the Assessor’s office as we just completed our 2023 assessment appeals last month.

As we move our focus to the 2024 assessments, we are continuing to see the property sale prices trending upward. We are also seeing quite a bit of new construction in all segments, such as residential single family homes, town homes, new apartment complexes and commercial properties.

This year we will again continue to update our records in areas that have not been reviewed in many years. When you see our Township vehicles in your area it is most likely that we are updating our property record cards with new photos and outside measurements for the entire neighborhood or for homes that have recently sold. My staff will always go to the door first to let you know they are there and if you are not home, they will leave a card letting you know they were there with directions to contact the office. If you have any questions or concerns, please call my office.

I want to emphasize to you the importance of paying attention to your tax bill when you receive it in May. This will give you information on the exemptions you are receiving and those you may be eligible for. As a reminder, starting this year, the General Homestead Exemption has increased from $6,000 to $8,000 and the Senior Homestead Exemption from $5,000 to $8,000. If there are exemptions you feel you should be receiving and they are not listed on your tax bill, please call the office at (815) 385-0175 and my staff will assist you.

If you are already receiving the Senior Assessment Freeze Homestead Exemption, the Disabled Persons or Disabled Veterans Exemption, you should receive your renewal forms from the County sometime this month.

I wish you all a wonderful, safe and healthy Spring and Summer!

Mary Mahady, C.I.A.O.
McHenry Township Assessor
If you have questions, please feel free to contact my office or email me at

McHenry Township Assessor Mary Mahady

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