N.H. Rev. Stat. Ann. § 198:15-v
I. The amount of the annual grant to any school district duly organized, any city maintaining a school department within its corporate organization, any cooperative school district as defined in RSA 195:1, or any receiving district operating an area school as defined in RSA 195-A:1, shall be determined as follows:
II.
(a) The amount of the annual grant in this subdivision shall be a sum equal to a percentage of the amount of the annual payment of principal on all outstanding borrowings of the school district, city, cooperative school district, joint maintenance agreement, or receiving district, for all approved costs of construction or purchase of school buildings and school administrative unit facilities, for grants approved on or before July 1, 2013 according to the following table:
| Building Aid Factor | Single District | Preexisting District in a Cooperative School District, Area School, or Joint Maintenance Agreement | |
| 0-59 | 60 percent | 60 percent | |
| 60-69 | 55 percent | 60 percent | |
| 70-89 | 45 percent | 55 percent | |
| 90-114 | 40 percent | 50 percent | |
| 115 or greater | 30 percent | 40 percent |
(b) For projects approved after July 1, 2013, the amount of the grant to any school district, city, cooperative school district, joint maintenance agreement, or receiving district shall be a sum equal to the percentage of all approved costs for construction or purchase of school buildings according to the following table:
| Building Aid Factor | Building Aid Grant | |
| 0-59 | 60 percent | |
| 60-69 | 55 percent | |
| 70-89 | 45 percent | |
| 90-114 | 40 percent | |
| 115 or greater | 30 percent |
Source. 2003, 296:2, eff. July 1, 2005. 2012, 275:6, eff. Aug. 18, 2012.