Colorado: Sales Tax Handbook
How to contact the Colorado Department of Revenue
If you have any questions about the Colorado sales tax, your business' account or your tax responsibilities the Department of Revenue is there to answer your questions.
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Department of Revenue Address & Phone Numbers
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General Department of Revenue Address:
Colorado Department of Revenue Denver, CO 80261-0013 |
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Local Phone (Sales Tax Department): 1 |
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Toll Free Phone (Sales Tax Department): 1 |
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Email: 1 |
Department of Revenue Website
For more information, you can visit the sales tax information portal on the Department of Revenues website online at http://www.colorado.gov/cs/Satellite/Revenue/REVX/1176842266433 
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If you need to visit the Colorado Department of Revenue in person, a list of department locations and field offices can be found at here .
Please contact the Colorado Department of Revenue with any questions or concerns about your sales tax account, sales tax compliance queries, etc. If you have a question or comment about the content of this website, please contact us directly instead.
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