N.C. Gen. Stat. § 105-449.42: Payment of tax.

The tax levied by this Article is due when a quarterly return is due under G.S. 105-449.45. The amount of tax due is calculated on the amount of motor fuel or alternative fuel used by the motor carrier in its operations within this State during the quarter covered by the return. If a motor carrier is exempt from filing a return under G.S. 105-449.45(b)(2), the tax levied by this Article is due when the tax becomes collectible under G.S. 105-241.22. (1955, c. 823, s. 6; 1973, c. 476, s. 193; 1979, 2nd Sess., c. 1086, s. 2; 1983, c. 29, s. 2; 1991, c. 182, s. 4; 1999-337, s. 38; 2010-95, s. 26(c); 2023-12, s. 3.11.)