N.H. Rev. Stat. Ann. § 563-B:5
(a) In this section:
(b) Except for a disclaimer governed by Article 6 or 7, the following rules apply to a disclaimer of an interest in property:
(3) If the instrument does not contain a provision described in paragraph (2), the following rules apply:
(A) If the disclaimant is not an individual, the disclaimed interest passes as if the disclaimant did not exist.
(B) If the disclaimant is an individual, except as otherwise provided in subparagraphs (C) and (D), the disclaimed interest passes as if the disclaimant had died immediately before the time of distribution.
(C) If by law or under the instrument, the descendants of the disclaimant would share in the disclaimed interest by any method of representation had the disclaimant died before the time of distribution, the disclaimed interest passes only to the descendants of the disclaimant who survive the time of distribution.
(D) If the disclaimed interest would pass to the disclaimant's estate had the disclaimant died before the time of distribution, the disclaimed interest instead passes by representation to the descendants of the disclaimant who survive the time of distribution. If no descendant of the disclaimant survives the time of distribution, the disclaimed interest passes to those persons, including the state but excluding the disclaimant, and in such shares as would succeed to the transferor's intestate estate under the intestate succession law of the transferor's domicile had the transferor died at the time of distribution. However, if the transferor's surviving spouse is living but is remarried at the time of distribution, the transferor is deemed to have died unmarried at the time of distribution.
Source. 2021, 206:2, Pt. VI, Sec. 10, eff. Aug. 10, 2021.