If you have any questions on filing for property tax exemptions, please contact our office at 813-272-6100. 1. When did you acquire this property?Visit the Hillsborough County Property Appraiser's website or office. To claim the exemption, the homeowner must make a one-time filing with the county assessor where the property is located. Welcome to the Hillsborough County Property Appraiser's online Homestead Exemption application! The Office of the Assessor provides a variety of exemptions available on the assessed value of a parcel if certain qualifications are met.