Residence Homestead Exemption Form: homestead app. File this form and all supporting documentation with the appraisal district office in each county in which the property is located generally between Jan.It's just five pages it's really pretty simple to fill it out it doesn't cost you anything you can only do it from January 1st through April 30th. Today I would like to explain to you how you can file for your homestead exemption. Initially, up to a maximum of 50 percent of a beneficiary's benefits were taxable, but in 1993 the maximum was increased to 85 percent.