Businesses | Department of Revenue - Taxation

Tax Types

Sales & Use Tax

Business Income Tax

Withholding Tax

Excise & Fuel Tax

Property Taxation (DOLA)

Electronic Funds Transfer (EFT)

Visit the Electronic Funds Transfer (EFT) web page to learn more about this tax payment service >>

E-File Options

Revenue Online (ROL)

Sales & Use Tax System (SUTS)

Sales & Use Tax Spreadsheet Filing

Additional Tax Information

Climate Focused Tax Incentives

Resources for Businesses

Cover of the Colorado Sales Tax Guide

Guidance Publications

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Business Tax Class

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Watch How-To Videos

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Sign Up for Email Alerts

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Tax Fraud Prevention