Pay property taxes on time. Property Tax Statements are mailed out in October, and are due upon receipt.The mission of the Collin Central Appraisal District is to appraise all property in the Collin County Appraisal District at market value equally and uniformly. A homestead exemption removes part of the value from the assessed value of your property and lowers your property taxes. The title transfer process in Collin County involves specific steps for both property and vehicle ownership changes. The application for Historic Property Tax Abatement requires two documents: 1. A completed Data Entry Template and. 2. The Director of Housing approves your form. Tips for Collin County Homeowners.