N.C. Gen. Stat. § 156-129: Amount of assessments limited; reassessments regulated.

The assessments made under this Article shall in no instance, and against no piece of property, be greater in amount than that percent which the percent assessment authorized by this Article bears to the unpaid original assessment upon each piece or tract of property within the district. In no instance, either under this Article or any other law, shall any reassessment be made upon any piece of property for the purpose of providing money for the same purpose for which the original assessment was made, when the original assessment upon said property has been paid, or shall be paid prior to such general reassessment, nor to the extent that the original assessment has been paid. (1935, c. 469, s. 4(b).)