Video Library | Department of Revenue - Taxation

Sales Tax Videos

How to File Special Event Sales Tax Using Revenue Online

How to File Using Revenue Online

How to File Using a Paper Form

How to Register in Revenue Online for Out-of-State Retailers

Tips for Setting Up Your Revenue Online Account

Vendor/Service Fee Information

Verify Your Colorado Sales Tax License Number

Income Tax Videos

Tips for Setting up An Account

Amending a Business Tax Return in Revenue Online (for Businesses)

Do you owe on your Colorado State Income Tax?

How to Make an Individual Income Tax Payment

Income Tax Payment Plans Using Revenue Online Quick Links (No Login Required)

Income Tax Payment Plans Using Revenue Online (Logged In)

Withholding Videos

Colorado Wage Withholding Changes for 2020

Filing Frequencies & Due Dates

How to Calculate Colorado Wage Withholding

How to File Colorado Wage Withholding Returns

Excise & Fuel Tax

IFTA - How To File Using Revenue Online

Filing Marijuana-Related Sales Tax Returns in Revenue Online

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Visit the Revenue Online Help web page for more how-to information. If you are looking for additional training resources, visit the Tax Education & Training web page.