The sales tax rate in North Carolina varies by county and can be anywhere from 6.75 to 7.5 percent, as of 2015. For example, in Columbus County, the tax rate is 6.75 percent, while the tax rate in Martin County is 7 percent and the tax rate in Orange County is 7.5 percent. Some counties (Mecklenburg, Durham and Orange) include a 0.50 percent transit and county sales and use tax in their tax rates, according to the North Carolina Department of Revenue.
The standard state sales tax rate in North Carolina is 4.75 percent, notes the North Carolina Department of Revenue. The additional percentages are made up of applicable local taxes. The North Carolina Department of Revenue publishes a complete tax table with all counties listed on its official website.