Residents of San Antonio can get other tips on lowering their property tax bills during a series of public workshops. The workshops will show homeowners the property tax exemptions available to them and how to submit an appeal to lower their property tax bills.Residents of San Antonio can get other tips on lowering their property tax bills during a series of public workshops. The workshops will show homeowners the property tax exemptions available to them and how to submit an appeal to lower their property tax bills.