Department of Revenue - Taxation
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Common Tax Topics
Changes for Pass-Through Entities for 2024
House Bill 23-1277 made several changes for pass-through entities for tax years 2024 and later. These changes resulted in the elimination of form DR 0108 and affected nonresident composite returns and form DR 0106K.
Tax Fraud Prevention
View our most recent publication to read detailed information regarding fraud prevention tips for this tax season.
Colorado Child Tax Credit
New in 2023: A Child Tax Credit for Coloradans. Colorado Residents who qualify for the Federal Child Tax Credit may also qualify for a refundable State Credit.
Rulemaking Announcements
The Colorado Department of Revenue, Division of Taxation, will hold a public rulemaking hearing on the tax rules listed below at 10:00 a.m. on July 10, 2025.
The Colorado Department of Revenue, Division of Taxation, is hosting a workgroup meeting to discuss the promulgation of a new sales tax rule regarding leases. The Department has prepared the draft rule below to aid in the process of soliciting public comments.
The Colorado Department of Revenue, Division of Taxation, is seeking public input regarding drafts of the following rules. The Department has prepared the attached drafts to aid in the process of soliciting public comments.Sales Tax Rules
Online Filing Tools
Sales & Use Tax System (SUTS)
Geographic Information System (GIS)
Did you know that DOR has Free Tax Webinars?
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