Summary Back-to-school shopping is going to cost a little less this week. Back-to-school shopping is going to cost a little less this week. Maryland’s tax-free shopping week runs through Saturday, Aug. 15. During the week, shoppers won’t pay state sales tax on qualifying clothing and shoes priced at $100 or less. State officials are also encouraging Marylanders to shop locally, giving small businesses a boost during the tax-free week.