If you have any questions on filing for property tax exemptions, please contact our office at 813-272-6100. Completing the form in its entirety will expedite the process of your application.Complete the form as follows: 1. Visit the Hillsborough County Property Appraiser's website or office. If title to the property on which you are applying is held in a trust, a copy of the trust or. Memorandum of Trust must be submitted. Yes, homestead property in trust can still get the homestead tax exemption, as long as the trust is set up correctly. March 1 is the statutory deadline to file a Homestead Exemption application with our office. Hillsborough County Tax Collector. To apply for or renew an exemption, the beneficiary must submit proof of income and a copy of the trust with the application.