Colorado Revised Statutes Title 39. Taxation § 39-21-104. Rejection of claims

(1) Upon rejection, in whole or in part, of a claim for refund filed by a taxpayer, with respect to any tax set forth in section 39-21-103(1), the executive director of the department of revenue shall send a notice of rejection to the taxpayer in writing by first-class mail as set forth in section 39-21-105.5; and, within thirty days from the mailing thereof, the taxpayer may request a hearing or file a brief with the executive director, except where the claim is for refund of a deficiency in taxes assessed after hearing or determination on written brief had under the provisions of section 39-21-103. Thereafter, both the taxpayer and the executive director shall proceed as provided in section 39-21-103 with respect to the hearing or determination on written brief. Upon reaching a decision upon the claim for refund after hearing had thereon or consideration of the written brief, the executive director shall send to the taxpayer, by first-class mail as set forth in section 39-21-105.5, notice of final determination of claim for refund, stating therein the grounds for allowance or rejection in whole or in part.

(2) If the executive director determines that a request for a hearing related to the tax set forth in part 1 of article 22 of this title is a frivolous submission and rejects the request pursuant to section 39-21-104.5, the taxpayer shall not be entitled to a hearing before the executive director and the provisions of section 39-21-104.5 shall apply.