The Department of Revenue is processing 2023 income tax returns. For more information, please read the Department's announcement.

 
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Tax Rules

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Rulemaking Announcements

On March 11, 2024, the Colorado Department of Revenue, Division of Taxation, adopted four income tax rules.
The Colorado Department of Revenue, Division of Taxation, is hosting a workgroup meeting on March 27, 2024, at 10 a.m. to study the Colorado Child Care Contribution Credit (credit) pursuant to
On February 22, 2024, the Colorado Department of Revenue, Division of Taxation, adopted two income tax rules.