Online Forms

Tax Bill Address and Name Correction Form

Property Tax Due Date Extension for Members of the Illinois National Guard and U.S. Armed Forces Reserves

Discover® Credit Card Payment Form

Duplicate Payment Refund Application

IL-1017 Application for Deferral of Real Estate/Special Assessment Taxes

IL-1018 Real Estate/Special Assessment Tax Deferral and Recovery Agreement

Mobile Home Affidavit

Will County Mobile Home Registration

Treasurer's office forms are available for download in Adobe® Portable Document Format (PDF) format which requires Adobe Acrobat Reader.