New Mexico Administrative Code
Title 22 - COURTS
Chapter 600 - ADMINISTRATIVE HEARINGS OFFICE
Part 3 - HEARINGS UNDER THE TAX ADMINISTRATION ACT
Section 22.600.3.12 - APPEARANCES BY AUTHORIZED REPRESENTATIVES

A. Taxpayers may appear at a hearing for themselves or may be represented by any person expressly authorized under the Tax Administration Act or the Administrative Hearings Office Act to represent a taxpayer before the administrative hearings office. Unless otherwise changed, amended or repealed, Subsection H of Section 7-1B-8 NMSA 1978 expressly authorizes a taxpayer to represent themselves, or be represented by a bona fide employee, an attorney, a certified public accountant, an expressly authorized employee of a New Mexico licensed certified public accounting firm, or an enrolled agent. When the taxpayer is two individuals who have been jointly assessed, such as a married couple who filed a joint personal income tax return, either individual may serve as the taxpayer's representative.

B. Any attorney representing a taxpayer before the administrative hearings office shall file an entry of appearance in the matter. If the attorney has prepared the protest letter on behalf of the taxpayer, the protest letter signed by the attorney constitutes a valid entry of appearance unless otherwise expressly limited by the taxpayer or the attorney. An attorney's entry of appearance constitutes a written authorization for representation of a taxpayer without need for the specific, separate, signed taxpayer authorization specified in Subsection C. Any attorney, including those employed as in-house counsel, representing taxpayers in the filing of any motion, conduct of motions hearing, or conduct of a merits hearing must be licensed in good standing to practice law in New Mexico or in compliance with the pro hac vice requirements found under Rule 24-106 NMRA.

C. If a taxpayer intends to be represented by the authorized employee of a New Mexico licensed certified public accounting firm, then that firm shall provide a written authorization permitting its employee to act in a representative capacity for the taxpayer, on behalf of the firm. The authorization shall be executed by an individual having supervisory responsibility over the designated employee and authority to bind the New Mexico licensed certified public accounting firm in contract.

D. Except as otherwise provided, a taxpayer shall file a signed, written authorization with the administrative hearings office designating any person, except an attorney, expressly authorized under the Tax Administration Act or the administrative hearings office to represent the taxpayer in a specific protest proceeding. When the taxpayer is an entity, the signature of any bona fide employee of the taxpayer shall be deemed to be the taxpayer's signature. The written authorization need not be a specific or technical form, but may be included as a statement in the protest designating an authorized representative, on a taxpayer information authorization form filed with TRD, or as a statement in a subsequent pleading filed with the administrative hearings office.

E. All written authorizations or entries of appearance should include the name, mailing address, phone number, and electronic mail address of the authorized representative. The taxpayer and any representative who has entered an appearance or written authorization to appear has an ongoing duty to inform the administrative hearings office and the opposing party of any change of mailing address, contact phone number, or contact email address.

F. After a written authorization or entry of appearance has been filed in a case, a change in a taxpayer's representation requires a new, signed written authorization from the taxpayer, an entry of appearance from an attorney if no attorney has previously represented the taxpayer, or a substitution of counsel and new entry of appearance in the event that a taxpayer has engaged a different attorney to represent the taxpayer in the protest.

G. Any person designated by the taxpayer in the protest letter, through a written authorization or entry of appearance shall be deemed to be an authorized representative of the taxpayer for the purposes of conducting the scheduling hearing(s) before the administrative hearings office. At the scheduling hearing, the taxpayer and their representative (if any) will be advised of the statutory right to and limitations of representation during the hearing process.

H. After the scheduling hearing and advisement of the statutory right to and limitations of representation during the hearing process, if the taxpayer's representative is not a person who is expressly authorized to represent the taxpayer before the administrative hearings office under the Tax Administration Act or the Administrative Hearings Office Act, that person may not serve as a representative of the taxpayer in the proceeding before the administrative hearings office. In that event, the taxpayer may be granted an additional opportunity before conduct of the hearing to arrange for appropriate representation. Any delay in the hearing process for this reason will be attributed to the taxpayer.

I. All parties shall have a responsibility of candor to the administrative hearings office and shall not knowingly make false statements to the hearing officer. The administrative hearings office is a tribunal for purposes of Rule 16-303 NMRA. An attorney, a certified public accountant, the authorized employee of a New Mexico certified public accountant, an enrolled agent, or any other statutorily permitted representative of a taxpayer in a protest hearing shall abide by their respective controlling professional or ethical standards of conduct at all stages of the administrative proceeding before the administrative hearings office. In the event of an apparent breach of applicable standards of conduct, ethics or professionalism, in addition to reporting the breach to the appropriate disciplinary board, the assigned hearing officer may take other reasonable and appropriate measures within the hearing officer's statutory and regulatory authority necessary to maintain order and ensure a fair hearing process for all parties, up to and including disqualification.