Which forms will I need to file? For Harris County Appraisal District, most businesses will need to file the general rendition form, 22.15.No information is available for this page. Application for Property Tax Refund. AC-502. The online rendition form is an easy and efficient way to file. An owner can log in, fill out the form, and submit online. This is the deadline to file property tax rendition for business personal property. How do I fill this out? This guide will walk you through the process of completing your BPP rendition form. Ways to File File Your Rendition Online Upload Your Documents