Assessor Services

“Oak Park Township Assessor Services can answer many questions on real estate assessment and property tax bills. Property values are determined by the Cook County Assessor’s office.”

Property Tax Bills Will Likely Be Due August 1

For the first time in several years, second installment property tax bills in Cook County are expected to be mailed by July 1 and due on August 1, in accordance with state law.  If this expectation holds true it may come as a surprise to taxpayers, according to Oak Park Township Assessor Ali ElSaffar.  This is because the due dates in recent years have been considerably later than August 1.   

Second installment tax bills cannot be issued until the county’s two tax appeal agencies complete the processing of all Cook County tax appeals.  But in the last two years, computer compatibility problems between the agencies delayed appeal processing by several months and as a result, second installment tax bills were not due until December.  

This year, the appeal agencies made a concerted effort to complete their work earlier and they succeeded in finishing the processing of appeals on May 5.  Historically, appeal completion dates in early May have left enough time to complete the other steps necessary for bills to be issued on time.  Unless there are unexpected delays in the remaining steps in the process, this year’s bills should be due August 1.  

The budgets of schools and other local governments can be severely disrupted when the tax revenue they rely on arrives four or five months late, as has happened in the last two years.  And the budgets of taxpayers can also be disrupted by unpredictable due dates for tax bills.  The expected August 1 due date for this year’s second installment bills will be just eight months after the due date of last year’s second installment bills, and during those eight months taxpayers will have paid three property tax bills.  This will cause hardship for some. 

“For the sake of taxpayers and taxing districts,” Assessor ElSaffar said, “I hope there will be more certainty and predictability in tax bill due dates going forward.”

Release Date:  May 28, 2024 

Ali ElSaffar
Oak Park Township Assessor
Oak Park Township
105 South Oak Park Avenue
Oak Park, Illinois 60302
Phone: 708-383-8005

Assessor News

View, print, and download the latest information from the Oak Park Township Assessor's Office.

2024 Press Releases

2023 Press Releases

2022 Press Releases

2021 Press Releases

2020 Press Releases

Property Tax

Every Oak Park property pays a small share of Oak Park’s $233 million tax burden.

A property’s share of the burden is determined by comparing its assessed value to Oak Park’s overall assessed value.

Thus, a property that comprises 1% of the total assessed value of Oak Park pays 1% of Oak Park’s total tax burden.

Spending increases will raise the community’s overall tax burden, and changes in your property’s share of the burden will determine whether it pays a larger or smaller portion of the increased community-wide tax burden.

Property Tax Appeals

Oak Park Appeal Period Opening Soon

APPEAL PERIOD RUNS FROM JULY 30 TO AUGUST 28 

Contact:  Ali ElSaffar
Oak Park Township Assessor
(708) 383-8005

Taxpayers requesting assistance with their appeals may call 708-383-8005 to request a phone appointment.

Effective:  July 30, 2020

Property Tax Assessment Resources

Oak Park Township Assessor Services can answer many questions on real estate assessment and property tax bills.

Property values are determined by the Cook County Assessor's office.

Property tax collection and distribution is handled by the Cook County Treasurer's office.

Cook County Assessor Exemptions and Forms

Low-Income Senior Cititzens Assessment Freeze - "Senior Freeze"

Homeowners over 65 years of age and with a total household annual income of $65,000 or less may be eligible for the Low-Income Senior Citizens Assessment Freeze, also known as the "Senior Freeze."

Applications for the current 2023 Tax Year are closed, but if you want to learn more, please visit the Cook County Assessor's Office Senior Freeze Exemption webpage or contact the Oak Park Township Assessor's office at (708) 383-8005.

Persons with Disabilities Exemption

Homeowners with disabilities may be eligible for an annual $2,000 reduction in their property's equalized assessed value (EAV) through the Persons with Disabilities Exemption.

Applications for the current 2023 Tax Year are closed, but if you want to learn more, please visit the Cook County Assessor's Office Persons with Disabilities Exemption webpage or contact the Oak Park Township Assessor's office at (708) 383-8005.

Veterans with Disabilities Exemption

Homeowners with a service-connected disability may be eligible for a reduction in their property's equalized assessed value (EAV) through the Veterans with Disabilities Exemption.

Applications for the current 2023 Tax Year are closed, but if you want to learn more, please visit the Cook County Assessor's Office Veterans with Disabilities Exemption webpage or contact the Oak Park Township Assessor's office at (708) 383-8005.

Missing Tax Exemptions

If you are missing property tax exemptions, homeowners can apply for Certificates of Error(s) for tax years 2022, 2021, 202, 2019, and 2018. It is recommended to apply online using the Certificate of Error Application for Exemptions, but you can also download a Certificate of Error Application in English, Spanish, Polish, and Chinese and mail it to 118 North Clark St, Room 320, Chicago, IL 60602.

Frequently Asked Questions

Can I do anything to reduce my current tax bill?

If you are eligible for a homeowner, senior citizen or other exemption but did not receive one, the Township Assessor’s office can assist you in obtaining a revised bill for a smaller amount.  If you have received all exemptions for which you are eligible, you likely will not be able to do anything about your current bill.

Can I do anything to reduce next year's tax bill?

Between July 1 and July 30, the Cook County Board of Review will accept appeals from Oak Park residents for next year’s taxes.  Residents may call the Oak Park Township Assessor’s office during the appeal period to schedule an appointment to help prepare an appeal.  Alternatively, residents can get help at the end of the appeal period by attending a tax appeal seminar sponsored by the Board of Review.  The seminar will take place on July 30 at 6:30 PM at the Percy Julian Middle School auditorium, located at 416 S. Ridgeland Avenue in Oak Park.

We'd love to hear from you!

Please use the form below to send us a message and we will get back to you as soon as possible.

Limit 2000 Characters


By submitting this form, you are consenting to receive emails from Oak Park Township in response to your request.