N.C. Gen. Stat. § 28A-15-8

Upon the determination by the Secretary of Revenue of North Carolina of an overpayment of income tax by any married person, any refund of the tax by reason of such overpayment, if not in excess of two hundred dollars ($200.00) exclusive of interest, shall be the sole and separate property of the surviving spouse, and said Secretary of Revenue may pay said sum directly to such surviving spouse, and such payment to the extent thereof shall operate as a complete acquittal and discharge of the Secretary of Revenue.