N.H. Rev. Stat. Ann. § 282-A:101

Except as otherwise provided in this subdivision, where the commissioner, after such investigation as he deems necessary, finds that an employer during the then last completed calendar year did not satisfy the conditions of becoming an employer as set forth in this chapter, he shall terminate such employer and permanently remove such employer's separate account as of the first day of January of the calendar year succeeding the year above described.