RSA 21-J:14, Confidentiality of Department Records, prohibits the NH Department of Revenue Administration from disclosing any confidential information collected.

State of New Hampshire Privacy Policy

Tax information which is disclosed to the New Hampshire Department of Revenue Administration is held in strict confidence by law. The information may be disclosed to the United States Internal Revenue Service, agencies responsible for the administration of taxes in other states in accordance with compacts for the exchange of information, and as otherwise authorized by New Hampshire RSA 21-J:14.