You must apply to HCAD for any exemptions for which you qualify. Which forms will I need to file?For Harris County Appraisal District, most businesses will need to file the general rendition form, 22.15. Tax Sale Excess Proceeds. Corporate income taxes. In a media statement on Aug. Part V is for claiming exemptions from withholding, if applicable. Part VI is the seller's residency certification for state tax purposes. Vice President Kamala Harris called Wednesday for higher taxes on bigdollar investments like real estate and stocks during an appearance in New Hampshire. You should check with your county tax office for verification.