Take care of your back-to-school shopping right here in Portales during the New Mexico Sales Tax Holiday! Pay no sales tax on certain items related to back-to-school and enjoy additional bargains from local retailers during the same weekend. For more details on what qualifies: http://www.tax.newmexico.gov/tax-holiday.aspx The tax holiday begins at 12:01 a.m. on August 2, 2019 and concludes on August 4, 2019 at midnight.