N.C. Gen. Stat. § 45-43
Any individual or corporation authorized by law to do a real estate mortgage loan business may make or negotiate loans of money on notes secured by mortgages or deeds of trust on real estate bearing legal interest payable semiannually at maturity or otherwise, and in addition thereto, may charge, collect and receive such commission or fee as may be agreed upon for making or negotiation of any such loan, not exceeding, however, an amount equal to one and one-half percent (1 1/2%) of the principal amount of the loan for each year over which the repayment of the said loan is extended: Provided, however, the repayment of such loan shall be in annual installments extending over a period of not less than three nor more than 15 years, and that no annual installment, other than the last, shall exceed thirty-three and one-third percent (33 1/3%) of the principal amount of loans which are payable in installments extending over a period of as much as three years and less than four years, twenty-five percent (25%) of the principal amount of loans which are payable in installments extending over a period of not less than four years nor more than five years, and fifteen percent (15%) of the principal amount of loans which are payable in installments extending over a period of more than five years and not more than 15 years. This section shall only apply to the counties of Ashe, Buncombe, Caldwell, Forsyth, Gaston, Henderson, McDowell, Madison, Rutherford, Watauga, and Yancey.
N.C. Gen. Stat. § 45-43