Will County Supervisor of Assessments

Forms



County Board of Review Forms

2025 Residential Complaint Form

2025 Farm Complaint Form

2025 Commercial Complaint Form

2025 Industrial Complaint Form

Affidavit of Hearing Waiver

Board of Review Complaint Disclosure Form

Board of Review Complaint Withdrawal Form

Signature Form

Verification of Authority to represent Owner(s) of Real Property Form (Attorney Authorization)


Board of Review Informational Resources

2025 Will County Board of Review Rules and Procedures

Guide to Filing a Complaint

Residential Complaint Instructions & FAQs



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Forms for Disabled Individuals

PTAX-343 Application for Disabled Persons' Homestead Exemption

PTAX-343-A Physician's Statement for Disabled Persons

PTAX-343-R Annual Renewal of Disabled Persons' Homestead Exemption




Forms for Senior Citizens

PTAX-324 Senior Citizen Exemption

PTAX-340 2025 Low-Income Senior Citizens Assessment Freeze Homestead Exemption Application and Affidavit

PTAX-340 2024 Low-Income Senior Citizens Assessment Freeze Homestead Exemption Application and Affidavit



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Forms for Veterans

Consent to Release Information

PTAX-341 Returning Veterans' Homestead Exemption

PTAX-342 Application for Disabled Veterans' Standard Homestead Exemption

PTAX-342-R Annual Verification of Eligibility for Disabled Veterans

PTAX-763 Application and Affidavit for Veterans Organization Assessment Freeze




Fraternal Organizations

PTAX-764 Application and Affidavit for IRC 501(c)(10) Fraternal Organization Assessment Freeze

PTAX-765 Application and Affidavit for IRC 501(c)(8) Fraternal Organization Assessment Freeze

PTAX-766 Application and Affidavit for IRC 501(c)(2), (c)(8), or (c)(10) Fraternal Organization Assessment Freeze



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Miscellaneous Forms

Application for Solar Energy Assessment (PTAX-330)

Disaster Area Application (PTAX-245)

Disclosure Form

FOIA Request Form

Lease Agreement - General Homestead Exemption Application

Open Space Purposes Application (PTAX-334)

Petition to Divide or Consolidate Property

Preferential Farmland Assessment Enrollment Packet

Public Act 96-480 (Developer's Relief Assessment)

Request to Remove Property Tax Exemptions



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Model Homes

PTAX-762 Application - Model Home Assessment

PTAX-762-C Application - Certificate of Ineligibility Model Home Assessment




State Property Tax Appeal Forms (PTAB)

All State of Illinois PTAB-related forms can be found on the PTAB website at https://www.ptab.illinois.gov/



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Tax Exempt

Example Affidavit of Use

Example of $100,000 letter

PTAX-300 Application for Non-homestead Property Tax Exemption

PTAX-300-FS Application for Federal/State Agency Property Tax Exemption

PTAX-300-H Application for Hospital Property Tax Exemption

PTAX-300-H Application Schedule A

PTAX-300-H Application Schedule E

PTAX-300-HA Recommended Draft-Affidavit for Hospital Property Tax Exemption

PTAX-300-R Application for Religious Property Tax Exemption



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