How to apply for Illinois Senior Citizens Homestead Exemption (Property Tax, Age 65+)

Illinois Department of Revenue + your county Chief County Assessment Office (Supervisor of Assessments)

Who it's for

Illinois homeowners 65 and older can get a yearly cut in the equalized assessed value (EAV) of the home they live in, which lowers the property tax bill. The cut is up to $8,000 in Cook County and the counties next to it, and up to $5,000 in all other counties. You must live in the home, own it (or have a legal interest in it in writing), and be the one who pays the property taxes. There is no income limit. Ask your county's Chief County Assessment Office how to apply. Some counties use Form PTAX-324 the first time and Form PTAX-329 to renew. In Cook County, apply every year with the Cook County Assessor's Office. Homeowners 65 and older with household income of $65,000 or less may also get the Senior Citizens Assessment Freeze.

The saving depends on your local tax rate: the exemption takes up to $5,000 (or $8,000 in Cook and nearby counties) off the home's EAV, not off the bill. Filing rules vary by county, and the county assessment office makes the final decision.

People who qualify for one senior program often qualify for others. See everything you may qualify for — free, no SSN, about five minutes.

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What you'll need

  • Proof of age 65 or older
  • Proof you own and live in the home
  • Form PTAX-324 (first year) or PTAX-329 (renewal), if your county uses them

Where to apply

Apply online: official application

By phone: 1-800-732-8866

What to say when you call

"Hello, I'm calling to ask about Illinois Senior Citizens Homestead Exemption (Property Tax, Age 65+). I'd like to know whether I may qualify, what documents I need, and whether I can apply online, by mail, by phone, or in person. I understand I may need proof of age 65 or older, proof you own and live in the home, form PTAX-324 (first year) or PTAX-329 (renewal), if your county uses them — is anything else required? What is the best next step?"

Tip: have a pen ready, ask for the person's name, and write down any case or reference number they give you.

Renewals

varies by county (annual in Cook County)

Official source →Last verified · October 18, 2026

Not sure if you qualify? Run a free check first.

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Not legal or financial advice. The agency makes the final eligibility decision.