Apply for homestead exemptions? Call the Tarrant Appraisal District at 817-284-0024.Qualifying individuals must submit an application in order to receive the homestead exemption. You can apply online for any of these exemptions through the Cook County Assessor's Office. Summary. In April 2023, Cook County prioritized three research questions regarding Illinois' homestead exemptions for further study. Generally, the deadline to file an application for an exemption is April 30. To qualify for the over65 property tax exemption, a property owner must be 65 or older, and reside in the home as their principal residence. Like the homestead exemption, only school districts are required to offer this exemption. Need help with your Tarrant County property taxes? Certain residents are eligible for property tax breaks.