N.H. Code Admin. R. Rev 704.04
(a) When measuring the length of a rental agreement for purposes of determining taxability pursuant to RSA 78-A:3, XVIII, computation of the rental period shall begin with the first day of the rental agreement whether or not possession of the rented motor vehicle has been taken, and:
(2) When there is a signed rental agreement between the operator and the renter for:
(3) If the rental period continues for more than 180 consecutive days:
b. Any portion of such tax that has been remitted to the state shall be returned to the operator through the issuance of a notice of credit or refund to the operator upon:
1. Written request by the operator to:
NH Department of Revenue Administration
Audit Division
PO Box 1388
Concord, NH, 03302-1388; and
(4) The request, pursuant to (a)(3)b., above, shall include:
a. Verification that the tax has been refunded to the renter such as, but not limited to:
b. Proof of the motor vehicle rental period that documents:
1. The beginning date of motor vehicle rental period through the 180th consecutive day, such as but not limited to:
(b) A request for an exemption for vehicles modified for the transport of individuals with physical disabilities from the collection and payment of the tax imposed by RSA 78-A, shall:
(1) Be made in writing to the commissioner and mailed to:
New Hampshire Department of Revenue Administration
Taxpayer Services Division
PO Box 3306
Concord, NH 03302-3306; and
(2) Contain the following information:
c. Proof that the motor vehicle that is the subject of the exemption request possesses modifications suitable for the transport of passengers with physical disabilities that require a wheelchair or other special adaptation, including:
Source. #2205, eff 12-12-82; ss by #2504, eff 10-12-83; ss by #3181, eff 1-22-86; ss by #4061, eff 5-29-86; ss by #5399, eff 5-21-92; amd by #5912, eff 10-14-94; renumbered by #6690, (from Rev 704.01); ss and moved by #6750, eff 5-19-98 (from Rev 704.07); ss by #8653, eff 6-8-06; ss by #10714, eff 11-7-14 (from Rev 709.03); renumbered by #11021 (formerly Rev 704.03); ss by #12366, eff 8-22-17; amd by #13077, eff 7-25-20; ss by #14105, eff 10-29-24, EXPIRES: 10-29-34