N.H. Code Admin. R. Rev 1603.01
(a) A retailer’s agent shall be liable for the tax it retains when it:
(1) Bills customers for long distance or local services including the tax applicable for such services on behalf of:
(b) When an agent remits part or all of the tax funds collected to its principal, the agent shall:
(1) Retain all data relating to the billing, collection, and remittance of tax such as, but not limited to:
Source. #4799, Interim, eff 8-22-90, exp. 6-1-90; ss by #4954, eff 10-16-90; ss by #6336, eff 9-24-96; ss by #8178, eff 9-24-04; ss by #10213, eff 10-24-12; ss by #13553, eff 2-7-23 (see Revision Note at chapter heading for Rev 1600)