The Colorado Department of Revenue offers a variety of online services.
For Individuals
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Electronic filing of income tax through NetFile, TeleFile or Federal/State Electronic Filing (FSEF) program
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Online payments through the Colorado Online Tax Payment Service
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Refund status, 1099-G information and estimated payments history through "My Income Tax Account" service
For Businesses
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"Zero" tax return filing for sales, withholding and retailer's use tax
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Electronic Funds Transfer (EFT)
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W-2 statements filing
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Sales Tax Rates by City/County
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Sales Tax Rates by Address
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Sales Tax Rates by Account Number
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Sales Tax Account History
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Sales Tax License Verification
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Sales Tax Rate Charts
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Special Event-Specific Fill-in Forms
To use any of these services, please select your choice from the left.