Exemption applications must be filed with your local assessor's office. See our Municipal Profiles for your local assessor's mailing address.If you are 65 or over, you will qualify for this exemption in your name and can apply online. 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. McLean County mails a PTAX-340 each year to any person currently receiving the Senior Citizens Homestead Exemption. Exemptions are reflected on the Second Installment tax bill. To check the exemptions you are receiving, go to Your Property Tax Overview. Property Tax-Aide features three statewide programs for older Illinois residents: Low-income Senior Citizens Assessment Freeze Homestead Exemption (SCAFHE), The exemption amount is calculated after the General Homestead Exemption is calculated.