Most homeowners are eligible for this exemption if they own and occupy their property as their principal place of residence. Property tax exemptions are savings that contribute to lowering a homeowner's property tax bill.The most common is the Homeowner Exemption. Join us for a workshop to learn about the Cook County Assessor's Office and homeowner exemptions. Summary. In April 2023, Cook County prioritized three research questions regarding Illinois' homestead exemptions for further study. A person may claim only one homestead. RP467K2 (Fillin), Instructions on form, Application for Partial Tax Exemption for Long Time Senior Citizen Residents in the City of Buffalo. If a property hasn't changed hands in the past year, the Cook County Assessor's Office will automatically renew this exemption. To receive the benefit of the homestead exemption, the taxpayer must file an initial application. If you believe your property qualifies for exemption, you should apply to the Board of Review (BOR) with proof that the property should be exempt.