(a) Except as otherwise provided in subsection (b) of this section, or in G.S. 28A-27-5, G.S. 28A-27-6, or G.S. 28A-27-8, the tax shall be apportioned among all persons interested in the estate in the proportion that the value of the interest of each person interested in the estate bears to the total value of the interests of all persons interested in the estate. The values as finally determined for federal estate tax purposes shall be used for the purposes of this computation.
(b) In the event the decedent's will provides a method of apportionment of the tax different from the method provided in subsection (a) above, the method described in the will shall control. However, in the case of any will executed on or after October 1, 1986, a general direction in the will that taxes shall not be apportioned, whether or not referring to this Article, but shall be paid from the residuary portion of the estate shall not, unless specifically stated otherwise, apply to taxes imposed on assets which are includible in the valuation of the decedent's gross estate for federal estate tax purposes only by reason of Sections 2041, 2042 or 2044 of the Internal Revenue Code of 1954 or corresponding provisions of any subsequent tax law. In the case of an estate administered under any will executed on or after October 1, 1986, in the event that the estate tax computation involves assets described in the preceding sentence, unless specifically stated otherwise, apportionment shall be made against such assets and the tax so apportioned shall be recovered from the persons receiving such assets as provided in Sections 2206, 2207 or 2207A of the Internal Revenue Code of 1954 or corresponding provisions of any subsequent tax law. (1985 (Reg. Sess., 1986), c. 878, s. 1; 1987, c. 694, s. 1.)