N.H. Rev. Stat. § 80:27
Each tax collector, within 30 days after the sale of any real estate for taxes, shall deliver or forward to the register of deeds for the county in which the real estate is situated a statement of the following facts relating to each parcel of real estate so sold, certified by him under oath to be true; the name of the person to whom the real estate was taxed and a description of the property as it appeared in the tax list committed to him; the total amount for which the sale was made, including taxes, interest, fees and costs incident to advertising, posting, selling and making reports thereof to the register of deeds; the day and place of the sale and the name of the purchaser of each parcel sold and whether the sale was made of the whole, or a part, or an undivided interest in each separate tract or parcel of real estate, all of which shall be recorded and indexed by the register of deeds in a book or books to be kept for that purpose as provided in RSA 80:36.
RSA 80:27
1909, 18:1. 1919, 43:2. 1925, 61:1. PL 66 :24. 1939, 13:1. RL 80:24. 1943, 33:4; 134:3. RSA 80:27. 1983, 285:1, eff. Aug. 17, 1983.