Rules and Regulations
Proposed and Final Tax Regulations
Below are links to both proposed new and revised tax regulations and final adoption of tax regulations. This is updated periodically on an as needed basis.
Department of Revenue Disclaimer
The online version of the Department of Revenue proposed tax regulations are the most current versions available. However, these online regulations are not the official version.
For official publication of these and all State of Colorado regulations, please consult the Code of Colorado Regulations through the Office of the Colorado Secretary of State or contact them at 1700 Broadway, Denver, CO 80290.