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.”

First Installment Tax Bills are Due March 1

First installment property tax bills for tax year 2023 were mailed at the end of January, 2024, according to Oak Park Township Assessor Ali ElSaffar. “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, and will be due on March 1, 2024,” ElSaffar said.

Taxpayers looking at this year’s first installment bills should note that they do not reflect homeowner, senior citizen or other exemptions, nor do reflect the impact of reassessments or successful assessment appeals from tax year 2023. Exemptions, reassessments, and successful appeals will instead impact second installment bills, as will the effect of changes in the tax levies of local governments. Second installment bills will likely be due in the summer or fall of 2024.

Details about Paying Taxes. Property owners who do not have mortgage companies paying their taxes can make tax payments in person, by mail, or online at the Cook County Treasurer’s website, www.cookcountytreasurer.com. Those wishing to pay in person can do so at the Cook County Treasurer’s downtown office at 118 N. Clark Street and at any Chase Bank in the Chicago area. Chase branches most convenient to Oak Park residents are located at 800 Madison Street and 1048 Lake Street in Oak Park.

If money for property taxes is paid into an escrow account with a taxpayer’s mortgage company, the financial institution should receive the tax bill electronically, even if the taxpayer also receives a copy of the bill. Assessor ElSaffar advises taxpayers with property tax escrows held by their mortgage companies not to pay property taxes on their own, as this may result in a double payment of taxes. But taxpayers with mortgage escrows should check the Cook County Treasurer's website to verify that their mortgage companies have paid the taxes.

Release date: January 31, 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.

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

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 Exemptions

Senior Property Tax Exemptions

Applications for Senior Property Tax Exemptions have been mailed.  

The Law in 2019 provides automatic renewal for the Senior Exemption; it is available to all homeowners 65 years of age or older, regardless of income.

Disabled Veterans Property Tax Exemptions

All veterans who receive the Disabled Veterans Exemption are entitled to property tax savings.

The Law in 2016 allows veterans of the US Armed Forces who were severely wounded and while serving their country and who are at least 70% disabled complete exemption from property taxes

Frequently Asked Questions

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.

Between July 1 and July 30, the Cook County Board of Review will be accepting 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 for help in preparing 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 auditorium of Percy Julian Middle School, 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.