(a) Filing. The respondent's answer must be filed with the Administrative Law Judge, and served on the Internal Revenue Service, within the time specified in the complaint unless, on request or application of the respondent, the time is extended by the Administrative Law Judge.

(b) Contents. The answer must be written and contain a statement of facts that constitute the respondent's grounds of defense. General denials are not permitted. The respondent must specifically admit or deny each allegation set forth in the complaint, except that the respondent may state that the respondent is without sufficient information to admit or deny a specific allegation. The respondent, nevertheless, may not deny a material allegation in the complaint that the respondent knows to be true, or state that the respondent is without sufficient information to form a belief, when the respondent possesses the required information. The respondent also must state affirmatively any special matters of defense on which he or she relies.

(c) Failure to deny or answer allegations in the complaint. Every allegation in the complaint that is not denied in the answer is deemed admitted and will be considered proved; no further evidence in respect of such allegation need be adduced at a hearing.

(d) Default. Failure to file an answer within the time prescribed (or within the time for answer as extended by the Administrative Law Judge), constitutes an admission of the allegations of the complaint and a waiver of hearing, and the Administrative Law Judge may make the decision by default without a hearing or further procedure. A decision by default constitutes a decision under § 10.76.

(e) Signature. The answer must be signed by the respondent or the respondent's authorized representative under § 10.69(a)(2) and must include a statement directly above the signature acknowledging that the statements made in the answer are true and correct and that knowing and willful false statements may be punishable under 18 U.S.C. 1001.

(f) Effective/applicability date. This section is applicable beginning August 2, 2011.