The effective date for bills enacted without a safety clause is August 6, 2025, if the General Assembly adjourns sine die on May 7, 2025 (unless otherwise specified). Details

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Colorado Online Tax Handbook

State taxes provide a significant portion of the revenue that the State of Colorado uses to fund its operations.  This online tax handbook provides information on each of the taxes the state levies.

Prepared by Colorado Legislative Council Staff

Content last updated December 2016
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