Videos
How to File Using Revenue Online
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How to File Using a Paper Form
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How to File Special Event Sales Tax Using Revenue Online
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How to Renew Your Sales Tax License Using Revenue Online
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Amending a Sales Tax Return in Revenue Online
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Vendor/Service Fee Information
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Sign Up for CDOR Filing Reminder Emails
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Sales and Use Tax Webinar Recording
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Tips for Setting Up Your Revenue Online Account
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How To Find Information For Home Rule Cities
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How To Find Information on Colorado Sales & Use Tax Rates
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How To Add Non-Physical Locations
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Verify Your Colorado Sales Tax License Number
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How to Register in Revenue Online for Out-of-State Retailers
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