Attention: Before filling out form, download and save to your computer. Each year applicants must complete and file Form PTAX-340 with the Chief County Assessment Officer.Property tax exemptions and deferrals. Note: These programs are only available to individuals whose primary residence is located in the State of Washington. Homeowners may apply for this exemption at our office at Washington Township Center. Us to have a form mailed to you. Homestead Exemptions For information on Homestead Exemptions please follow this link to the Supervisor of Assessments webpage. Summary. In April 2023, Cook County prioritized three research questions regarding Illinois' homestead exemptions for further study. Renewal forms go out yearly in the mail. Communities in some areas must bear a much higher relative burden of the state policy than others.
