N.H. Rev. Stat. Ann. § 35:12

Whenever the vote of the town is to appropriate any sum for the capital reserve fund pursuant to RSA 35:5, the same duties shall devolve upon the town clerk, selectmen, and town treasurer, as specified in RSA 35:11, except that the order must be drawn, and the sum transferred on or before December 15 following the vote, or, in the case of an optional fiscal year town, after July 1, but no later than June 15, of the fiscal year for which the sum was appropriated.