COLUMBIA, S.C. - South Carolina is among 12 states offering shoppers a sales tax break this weekend.

The sales-tax holiday extends from 12:01 a.m. Friday to midnight Sunday. It shaves state and local sales taxes from clothes, computers and other back-to-school items.

That means shoppers will save up to 8.5 percent, depending on local taxes. The state tax rate is 6 percent. In all, South Carolina shoppers are expected to save about $3 million.

The Federation of Tax Administrators says 16 states offer tax-free holidays this year, 12 of them this weekend, including neighboring Georgia. North Carolina's ended last year. South Carolina's began in 2000.

While the weekend is touted as savings for back-to-school items, the list of exempt items can be confusing. Wedding dresses and diapers are exempt, but iPads are not.