Contact Us By Email

General Tax Questions
Please allow 3-4 business weeks for an email response for general tax inquiries. For a faster response, please call the Taxpayer Helpline at (303) 238-7378.

Tax Unit Contact Emails

Office of Public Information & Education:
Excise Accounting Unit:
Fuel Tax Unit:
Marijuana Tax Unit:
Criminal Tax Investigations:
Office of Tax Policy & Analysis:

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