Assessor's Office

NOTICE: Last Day to file an exemption is June 26th

Download Latest Assessor's Forms Here

Certificate of Error Form

2022 Exemption Form


Exemption applications for tax year 2022 (tied to property taxes due in 2023) have been posted on the Cook County Assessor’s website, You may also open them using the links just above this article. Homeowner and Sr Citizen exemptions do not require renewal if they appear on your 2021 second installment tax bill. Residents who qualify for other exemptions will receive color-coded booklets for each one. If you qualify for an exemption for the first time in tax year 2022, you must file an original application.

After a two-year hiatus, residents eligible for the Sr Freeze exemption must apply to renew it. Annual renewal applications are usually required because eligibility is income-based, and that can fluctuate annually. The requirement was waived during the pandemic. Senior Freeze applications are now in the mail and are due May 10.

The Sr Freeze is one of two property tax exemptions available to people 65 or older. Eligibility requirements are below:

1.  The Sr Exemption (available to all seniors regardless of income) reduces your property taxes by about $688. You are eligible if you were born in 1957 and lived in the property in 2022. If the property received the exemption last year, it should renew automatically (unless it was sold recently).

2.  The Sr Freeze offers additional savings if the combined income of all members of the household is $65,000 or less AND if the senior has been an owner-occupant of the property since January 1, 2021.

Residents Turning 65 in 2022: These residents will probably not receive a Sr Exemption form in in the mail. Please call us for information (information is also available on the Cook County Assessor’s website).

Other Exemptions: The Homeowner Exemption, available to all owner-occupied homes, will renew automatically for all residents who received it for 2021. For the first time, residents who qualified for the Exemption for People with Disabilities in 2021 will receive automatic renewals too. Veterans who qualify for the Exemption for Veterans with Disabilities must still demonstrate eligibility. Note: A resident may not receive both Disability Exemptions. If you qualify for both, check with us to see which will give you the larger credit. If you bought your home in 2021, you must apply this year for all exemptions for which you are eligible.

Requirements: Applications require a copy of a government-issued photo ID (e.g., an Illinois Driver’s License) and evidence that you occupied the property as your principal residence in the tax year covered by the application. Please read communications from the Assessor’s office carefully to see what action, if any, you should take.

Call or email us for assistance. If your call goes to Voice Mail, please leave a message with your name and address, a phone number, and the reason for your call. We are seeing people by appointment only.


Property taxes are paid in two installments. The first installment is fifty-five percent (55%) of a property's total tax bill for the previous year, was due on April 3, 2023. NO exemptions or adjustments appear on the first bills, nor do they reflect the results of any successful assessment appeals filed for tax year 2022.  Exemptions and successful appeal adjustments ALWAYS appear on second installment bills. Second installment bills will probably be late again this year, although hopefully not as late as they were in 2022.


What We Do

In a Nutshell: Your New Trier Township Assessor's Office advocates for you with the Cook County Assessor's Office and the Cook County Board of Review. Additionally, we provide a broad range of services acting as a liaison for you with various County agencies.

Available Services

  • Assistance with preparing appeals for the Cook County Assessor, the Assessor's Re-Review and the Cook County Board of Review (and Re-Review)
    • We provide information about the various grounds for appeal
    • We file appeals for you at your request
  • Assistance with preparing appeals for the Property Tax Appeal Board (PTAB)
  • Assistance with filing exemptions
  • Assistance with the Cook County Treasurer's Office
    • Obtaining refunds where applicable
    • Updating name and address information
    • Providing documentation to correct second installment tax bills that are missing valid exemptions
  • Sales and building permit information
  • Taxpayer of record information
  • Brief legal descriptions of a specific property
  • Information from the Plat Books ("Sidwell Maps")
  • Information from tax exempt properties
  • Tax rate information

Outreach Events

We are also available to do outreach events for your organization. We have a presentation we call "Your Annual Tax Calendar at a Glance," but will gladly tailor a presentation for your organization.

Cook County

Understanding Property Taxes

Who's who in the Cook County property tax system? Learn the ins and outs of the taxation process (PDF).


In Cook County, property taxes involve coordination between offices at the county, state, and local municipal level. Learn more here.

Contact Us

You can reach the New Trier Assessor's office at 847-446-8200. Deputy Assessor Leonard Shifflett and I look forward to serving you.

Jan Churchwell, New Trier Township Assessor

 Jan Churchwell at

Len Shifflett at