Illinois Homestead Exemption: How to Lower Your Property Tax Bill

How Exemptions Work

Illinois homestead exemptions reduce your Equalized Assessed Value (EAV) — the taxable base on which your rates are applied. They do not directly reduce your tax bill by the exemption amount; they reduce the base that gets multiplied by your composite tax rate.

The absolute dollar savings depends on your tax rate. In high-rate counties like Lake (~2.65%), an $8,000 EAV reduction saves ~$212/year. In Cook County at ~1.67%, a $10,000 EAV reduction saves ~$167/year. In contiguous counties like DuPage, an $8,000 EAV reduction saves ~$169/year. Over a 30-year homeownership, these add up to thousands of dollars.

General Homestead Exemption

The General Homestead Exemption (GHE) is the baseline exemption available to every Illinois homeowner who occupies their property as a primary residence. It is the most widely applicable exemption and should be claimed by every owner-occupant.

EAV Reduction

• Cook County: $10,000 reduction in EAV
• Counties contiguous to Cook (DuPage, Will, Kane, Lake, McHenry, Kendall): $8,000 reduction in EAV
• All other counties: $6,000 reduction in EAV

Annual Savings by County

Eligibility

• You must own the property and use it as your primary residence as of January 1 of the tax year
• The property cannot be used primarily for commercial purposes
• You must be responsible for paying the property taxes (not exempt as a nonprofit, government, or religious entity)

Renewal

In most counties, once you've applied and been approved, the GHE auto-renews each year as long as you continue to qualify. Some counties send a reminder postcard; others renew automatically. If you sell and buy a new home, you must re-apply for the new property.

Senior Citizens Homestead Exemption

Illinois homeowners who are 65 years of age or older are entitled to the Senior Citizens Homestead Exemption, which is an additional EAV reduction on top of the General Homestead Exemption.

EAV Reduction

• Cook County and counties contiguous to Cook: $8,000 additional reduction in EAV
• All other counties: $5,000 additional reduction in EAV

Combined Impact with General Homestead

A 65+ homeowner in Cook County receives a combined EAV reduction of $18,000 ($10,000 GHE + $8,000 Senior). At Cook's ~1.67% rate, that's ~$301 in annual tax savings. In Lake County, a senior receives $16,000 in total EAV reduction ($8,000 GHE + $8,000 Senior), saving approximately $424/year at the 2.65% rate.

Eligibility

• Must be 65 or older on or before December 31 of the applicable tax year
• Must own and occupy the property as primary residence
• Income limits do not apply (unlike the Senior Freeze)

Application

Must be filed with your County Assessor's office. In many counties, you apply once and it auto-renews. Proof of age (birth certificate, passport, or driver's license) is required for initial application.

Senior Citizens Assessment Freeze

The Senior Citizens Assessment Freeze is one of the most valuable exemptions in the Illinois system — and one of the most under-used. It prevents your assessed value from increasing due to market appreciation as long as you meet the income requirements each year.

How It Works

When you first apply and are approved, your EAV is frozen at that year's value. In future years, even if the assessor increases the property's assessed value due to market conditions or reassessment, your net EAV for tax purposes remains frozen at the base amount. Your tax bill can still change if the tax rates themselves increase, but the assessment component is locked.

Eligibility Requirements

• Must be 65 or older on or before December 31 of the applicable tax year
• Total household income must be $75,000 or less for the prior year (increased from $65,000 by PA 104-0452, signed December 2025) (all household members included)
• Must have owned and occupied the property as your primary residence for at least the past year
• Must be liable for paying the property taxes

Annual Application Required

Unlike the General Homestead and Senior exemptions, the Assessment Freeze requires a new application every year. You must reapply each spring to maintain the freeze. If you miss a year, your assessment can increase in that year, and the freeze restarts from the new (higher) value in subsequent years.

Applications are typically due in late spring (often June or July, depending on county). Contact your County Assessor's office for the exact deadline in your area.

Disabled Persons Homestead Exemption

Persons with qualifying disabilities who own and occupy their primary residence in Illinois may receive a $2,000 reduction in EAV. This is in addition to the General Homestead Exemption.

Eligibility

• Must have a "Class 2" disability, meaning total disability or disability for purposes of qualifying for federal benefits
• Must own and occupy the property as primary residence
• Must reapply each year with documentation of disability status

Annual Savings

At typical collar county rates of 2.0–2.5%, a $2,000 EAV reduction saves approximately $40–$50 per year. It's modest, but it's free money — and it's in addition to any other exemptions you qualify for.

Documentation Required

Proof of disability status, such as an award letter from Social Security Administration or documentation from a licensed physician. Requirements vary by county; contact your assessor for specifics.

Veterans Homestead Exemptions

Illinois offers several property tax relief programs specifically for veterans and their surviving spouses.

Disabled Veterans Standard Homestead Exemption

Service-connected disability veterans receive EAV reductions based on disability rating:

The 70%+ exemption is one of the most generous in the state — full exemption on the first $250,000 of EAV, which covers the vast majority of Illinois homes. Veterans who qualify and are not claiming this exemption are leaving thousands of dollars per year unclaimed.

Returning Veterans Homestead Exemption

Veterans who return from active duty in an armed conflict involving the armed forces of the United States receive a one-time $5,000 EAV reduction for two consecutive tax years following their return. This is available regardless of disability status and does not require annual reapplication for the two qualifying years.

Surviving Spouse Provision

The surviving spouse of a veteran who died in the line of duty, or who would have qualified for the total exemption, may continue to receive the exemption as long as they remain unmarried and continue to occupy the property.

Application

Veterans exemptions are filed with the County Assessor. Required documentation includes a DD-214, a VA disability rating letter, and proof of residency. The county assessor's office can guide you through the specific requirements for your county.

Exemption Comparison Table

How to Apply for Illinois Homestead Exemptions

Step 1: Identify Your County Assessor

Each county has its own assessor's office. For Cook County, visit cookcountyassessor.com. For collar counties, search "[your county] assessor" or call the county government main line.

Step 2: Gather Required Documents

• All exemptions: Proof of ownership (deed or mortgage statement), proof of primary residency (driver's license, utility bill, or voter registration at the property address)
• Senior exemptions: Proof of age (birth certificate, passport, driver's license)
• Senior Freeze: Prior year income documentation (tax returns, Social Security award letters, pension statements)
• Disability exemption: Documentation of disability status from SSA or physician
• Veterans exemptions: DD-214, VA disability rating letter

Step 3: File the Application

Applications are available from the county assessor's office or website. Many counties now accept online applications. For the General Homestead Exemption, some counties process applications at closing through the title company — ask your real estate attorney or title company whether they handle this.

Step 4: Confirm Your Application

After applying, verify that your exemptions appear on your next tax bill or assessment notice. If they don't appear, follow up with the assessor's office before the tax bill becomes final.

Estimating Your Total Exemption Savings

Here's how to calculate your total savings for a typical homeowner in different scenarios. These examples show EAV reductions and annual savings at representative county rates.

These numbers represent real money — not accounting tricks. Every dollar saved in property taxes is a dollar that stays in your pocket and doesn't recycle into escrow. Over a 30-year mortgage, the General Homestead Exemption alone saves a Will County homeowner approximately $5,712. A senior in Lake County with GHE + Senior Freeze could save $10,000 or more over the same period.