Adopted – Colorado Income Tax Withholding Rule

Article Body

On January 9, 2026, the Colorado Department of Revenue, Division of Taxation, adopted five income tax withholding rules. The adoption was based on the public rulemaking hearing held on October 2, 2025.

Prior to the public rulemaking hearing, the Department solicited public comment on the rules from June 10, 2025 through July 10, 2025.

Copies of the adopted rules, dates of publication in the Colorado Register, and effective dates may be found on the Secretary of State’s website at the links below.

Recent Articles

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.