Sales Tax Holidays occur in a number of states throughout the year. The most common types of Sales Tax Holidays are Back to School, Hurricane Preparedness and Energy Star. Walmart.com participates in these Sales Tax Holidays unless prohibited by law.
U.S. state, county, and local tax jurisdictions determine the sales tax laws that govern sales tax holidays and participation in the sales tax holiday can vary by tax jurisdiction. The items eligible for Sales Tax Holidays are determined by the tax jurisdiction governing the specific Sales Tax Holiday.
See the sites below to find out when your state's Sales Tax Holidays are. If your state is not listed, they do not participate in Sales Tax Holidays.
New Mexico: http://www.tax.newmexico.gov/tax-holiday.aspx
Puerto Rico: http://www.hacienda.gobierno.pr/
South Carolina: http://www.sctax.org/Tax+Information/Sales+and+Use+Tax/