To Apply: All applications must be submitted online through the Smartfile E-Filing Portal. There is no annual renewal for this exemption.Disabled applicants must complete form DTE 105E,. A property tax exemption is like a discount applied to your EAV. If you qualify for an exemption, it allows you to lower your EAV. Each year applicants must complete and file Form PTAX-340 with the Chief County Assessment Officer. To apply, your organization should complete one of the following four applications, available from the chief county assessment officer (CCAO). Applications for all of the exemptions are available in the Supervisor of Assessments Office in the Courthouse in Morrison, Illinois. Property Tax Inquiry. Property taxes remain the largest source of financing for local governments in the United States.
