Colorado § 39-21-105.5 - Notice - first-class mail - definition.
Full text of Colorado Colorado Revised Statutes § 39-21-105.5 — Notice - first-class mail - definition., with citation guidance and answers to common questions.
§ 39-21-105.5. Notice - first-class mail - definition.
(1) Except as provided in subsection (2) of this section, any notice required to be given to any taxpayer pursuant to the scope of this article as set forth in section 39-21-102 is sufficient if mailed, postpaid by first-class mail to the last-known address of the taxpayer. The first-class mailing of any notice pursuant to the scope of this article as set forth in section 39-21-102 creates a presumption that such notice was received by the taxpayer if the department maintains a record of the notice and maintains a certification that the notice was deposited in the United States mail by an employee of the department. Evidence of the record of the notice mailed to the last-known address of the taxpayer as shown by the records of the department and a certification of mailing by first-class mail by a department employee is prima facie proof that the notice was received by the taxpayer.
(2) Notwithstanding subsection (1) of this section, and notwithstanding any other provision of law that requires written correspondence to be sent by first-class mail to a taxpayer, the department may promulgate rules to establish procedures that allow a taxpayer to voluntarily elect to receive any notice or other communication by electronic means pursuant to the established procedures. The procedures must be designed to ensure that to the greatest degree reasonably possible the party viewing the notice or communication is the taxpayer for whom the notice or communication is intended. An electronically transmitted notice or communication is sufficient to satisfy any requirement of mailing if sent in accordance with the procedures. If the department maintains a record of the recipient viewing the notice or communication, the record creates a presumption of receipt by the taxpayer and is prima facie proof that the notice or communication was received by the taxpayer.
(3) For purposes of this section, the term "taxpayer" includes the agent or personal representative of the estate of the taxpayer.
Source: L. 96: Entire section added, p. 164, § 3, effective July 1. L. 2014: Entire section amended, (HB 14-1107), ch. 134, p. 464, § 1, effective April 25.
Source: official Colorado text · Last verified 2026-08-27
Frequently Asked Questions About Colorado § 39-21-105.5
What does Colorado Revised Statutes § 39-21-105.5 cover?
Section 39-21-105.5 ("Notice - first-class mail - definition.") is part of the Colorado Revised Statutes, the codified statutory law of Colorado. It sets out the legal rule or procedure described in the text above. Statutes are amended regularly, so always verify against the official source.
How do I cite Colorado § 39-21-105.5?
A common citation format is "Colorado Revised Statutes § 39-21-105.5" (Colorado). Legal writing may require the code abbreviation, section number, and year or edition. Match the style required by your court, professor, or publisher.
Is this the official text of Colorado law?
No. This page is for research and education and may not include the most recent amendments. For official current law, check the Colorado official source linked on this page or consult a licensed Colorado attorney.
How does Colorado § 39-21-105.5 apply to my situation?
Statutes are interpreted in context, and application depends on your specific facts. Only a licensed attorney in Colorado can advise on how this section applies to you. Contact your state or local bar association for a referral.
Sources & Verification
Not legal advice. Verify against the official source and consult a licensed attorney in Colorado.