Tax Rules

Rulemaking Announcements

Notice of Proposed Rulemaking – 2026 Miscellaneous Rules

The Colorado Department of Revenue, Division of Taxation, will hold a virtual public rulemaking hearing on the tax rules listed below at 10 :00 a.m. on November 17, 2026. This hearing will be conducted virtually and will be recorded. Those

Request for Public Input – 2026 Miscellaneous Rules

The Colorado Department of Revenue, Division of Taxation, is seeking public input regarding drafts of the following new and amended rules. The Department has prepared drafts to aid in the process of soliciting public comments.