Updated August 2026
Owning a home is a significant financial commitment, and property taxes can be a substantial part of that burden. However, if you're a homeowner in Cook County, IL, you may be eligible for various tax exemptions to ease this financial load. In this blog, we'll explore the different homeowner exemptions available in Cook County and how you can take advantage of them.
What Are Homeowner Exemptions?
Homeowner exemptions are tax breaks provided to property owners who meet specific criteria. These exemptions can reduce your property's Equalized Assessed Value (EAV), ultimately lowering your tax bill. In Cook County, several types of homeowner exemptions include:
- The homeowner exemption
- Senior citizen exemption
- Low-income senior assessment freeze exemption
- Home improvement exemption
- Persons with disabilities exemption
- Returning veterans exemption
- Veterans with disabilities exemption
- Longtime homeowner exemption
The Homeowner Exemption in Cook County
You may qualify for the homeowner exemption if your property is your primary residence. The exemption reduces your property's EAV by $10,000, which can lower your property tax bill depending on your local tax rate. Individuals applying for the first time must meet the applicable ownership and occupancy requirements for the relevant tax year. Once established, the Homeowner Exemption automatically renews each year as long as you remain eligible.
Senior Citizen Exemptions
Seniors can benefit from the Senior Exemption and, for qualifying lower-income homeowners, the Low-Income Senior Assessment Freeze Exemption.
- Senior Exemption — This exemption is generally available to homeowners who are 65 or older and own and occupy their property as their principal residence. It reduces the property's EAV and can provide additional savings when combined with the Homeowner Exemption. The Senior Exemption automatically renews once established as long as you remain eligible.
- Low-Income Senior Assessment Freeze Exemption — Often called the "Senior Freeze," this exemption is available to qualifying senior homeowners who meet the income requirements. For the current application cycle, the household income limit is $65,000. The exemption freezes the home's EAV; it does not freeze the total property tax bill. Unlike the standard Senior Exemption, the Senior Freeze must be filed annually.
It's important to understand the distinction between these exemptions. Receiving the Senior Exemption does not automatically mean you receive the Senior Freeze, and the Senior Freeze does not guarantee that your total property tax bill will remain unchanged.
Home Improvement Exemption
If you've made improvements to your property that add value, the Home Improvement Exemption may allow you to increase the value of your home without an immediate corresponding increase in property taxes. The exemption can apply to up to $75,000 of added value for up to four years. Eligibility and the application process depend on the type of improvement and applicable requirements.
Persons with Disabilities Exemption
The Persons with Disabilities Exemption provides an annual $2,000 reduction in the EAV of an eligible property. Homeowners must meet the applicable disability requirements and provide the required documentation when applying. Under current Illinois law, homeowners who received this exemption previously can have it automatically renewed, while new applicants must complete the application process.
Returning Veterans Exemption
The Returning Veterans Exemption provides property tax savings to qualifying veterans who return from active duty in an armed conflict. The exemption provides a $5,000 reduction in EAV for the taxable year in which the veteran returns from active duty. This exemption must be filed annually.
Longtime Homeowner Exemption
The Longtime Homeowner Exemption can provide additional property tax relief for a small number of homeowners who meet specific requirements. Eligibility generally depends on factors, such as:
- How long you have owned and occupied the property
- Household income
- The amount of the property's assessment increase
Very few Cook County homeowners qualify for this exemption. The Cook County Assessor's Office identifies potentially eligible properties and mails applications to qualifying homeowners.
Disabled Veteran Exemption
The Veterans with Disabilities Exemption is available to veterans with service-connected disabilities certified by the U.S. Department of Veterans Affairs. The amount of the EAV reduction depends on the veteran's disability rating. Veterans with a disability rating of 70% or higher may receive a $250,000 EAV reduction, which can result in a complete exemption from property taxes on the home in qualifying circumstances.
Most applicants must reapply annually. However, veterans who are rated 100% disabled and classified as permanently and totally disabled by the U.S. Department of Veterans Affairs may qualify for automatic renewal under current law.
How to Apply for Tax Exemptions in Cook County 
Applications and additional information are available through the Cook County Assessor's Office. Some exemptions automatically renew once established, while others require homeowners to apply each year. The specific requirements, deadlines, and documentation vary by exemption.
What Happens If You Were Eligible for an Exemption but Didn't Receive It?
A Certificate of Error may provide a way to recover property tax savings from a missed exemption for an eligible prior tax year. Cook County allows eligible homeowners to apply for certain missing exemptions through the Certificate of Error process. Depending on the tax year and exemption, you may need to provide documentation showing that you met the eligibility requirements during that year.
This process can be particularly important when a homeowner discovers that an exemption was missing from a prior tax bill. Instead of assuming the opportunity is lost, check whether you qualify to file a Certificate of Error and potentially receive the benefit retroactively.
Contact Our Schaumburg Attorneys for Help with Property Tax Law
Cook County property tax exemptions come with different eligibility requirements, application procedures, renewal rules, and deadlines. Missing an exemption can mean paying more in property taxes than necessary, while misunderstanding the rules can make the application process unnecessarily complicated.
For personalized advice tailored to your situation, please consult with the Law Offices of Robert M. Kaplan, P.C. We're here to guide you through the complexities of property tax law in Cook County.