Businesses | Department of Revenue - Taxation

Tax Types

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Sales & Use Tax

Business Income Tax

Withholding Tax

Excise & Fuel Tax

Property Taxation (DOLA)

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Electronic Funds Transfer (EFT)

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

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E-File Options

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Revenue Online (ROL)

Sales & Use Tax System (SUTS)

Sales & Use Tax Spreadsheet Filing

Resources for Businesses

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Cover of the Colorado Sales Tax Guide

Guidance Publications

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Business Tax Class

Online Training Instructor Speaking on a Computer Screen

Watch How-To Videos

Business woman checking her email

Sign Up for Email Alerts

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Tax Fraud Prevention

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