N.H. Rev. Stat. Ann. § 457:29

The fee for the marriage license shall be $50 to be paid by the parties entering into the marriage. The clerk shall forward $43 from each fee to the department of health and human services for the purposes of RSA 173-B:15. The clerk shall retain the remaining $7 as the fee for making the records of notice, issuing the certificate of marriage, and forwarding the $43 portion of the marriage license fee.