Information about Colorado state and local taxes from the Colorado Department of Revenue can greatly help business owners understand the applicable business tax rules and regulations. Through the many online Colorado state and local tax resources, business owners can obtain tax related information, locate tax forms and file taxes online.

The online business tax resources can answer Colorado state tax questions from business owners in a straightforward and simple manner and provide them with the tax forms and tools they need to take care of taxes for their business. Business owners in Colorado should be sure to:

1. Obtain information about Colorado state and local taxes.

2. Gather applicable Colorado state tax forms for businesses.

3. File business taxes online.

4. Use online tax applications to help with Colorado state and local tax responsibilities and tasks.

Action Steps
The best contacts and resources to help you get it done

Locate Colorado state tax information online

The Colorado Department of Revenue has many online Colorado local tax resources and Colorado state tax resources all designed to help business owners understand taxes in Colorado. You can get information on income tax, sales tax, excise tax and withholding tax all from the Department of Revenue's website. Look to the Tax Information Index, the FYI publications and the frequently asked questions for easy to use and understand tax information.

I recommend: Look in the online Tax Information Index for information about Colorado business taxes. Review the FYI publications online for additional information about Colorado taxes for businesses. Look for answers to frequently asked tax questions on the Customer Support site of the Colorado Department of Revenue.

Obtain any necessary Colorado state and local tax forms

If you need to locate and review Colorado business tax forms, you can easily and securely download tax forms from the website of the Colorado Department of Revenue. You can locate tax forms by the form number of by category.

I recommend: Find Colorado state tax forms by Department of Revenue (DOR) form number. Obtain sales and use tax forms. Locate employer wage withholding forms. Find business entities income tax forms.

File and pay some of your Colorado state taxes on the Internet

In the state of Colorado, businesses have the option of filing their withholding taxes on the Internet through the Colorado Department of Revenue WHO system. Business owners can pay their Colorado state and local taxes online. Be sure to review the tax due dates calendar to make sure that you file all applicable Colorado state tax returns by their respective due dates.

I recommend: File withholding taxes online using the Colorado Department of Revenue WHO System. View the online tax due dates calendar. Make an online electronic funds transfer (EFT) payment of your business taxes.

Take advantage of online Colorado state tax tools

The Colorado Department of Revenue provides various online tools and applications designed to help Colorado business owners. New business owners can take an online business registration tutorial to guide them through the new business registration process. All business owners can determine sales and use tax rates for any address in Colorado and can review their sales tax accounts online.

I recommend: View the online Colorado Business Registration (CR 0100) tutorial to help you learn how to register a new Colorado business. Use the certified electronic address databases to help you determine sales and use tax rates for any Colorado address. Review the sales tax account history for your business online.

Tips & Tactics

Helpful advice for making the most of this Guide

• •  Consider attending one or more of the free public tax classes through the Colorado Department of Revenue. You can either attend these classes in person or view the class content online. Attend these classes to receive important Colorado state tax resources and Colorado local tax resources. You can find information about these classes on the Department of Revenue's website.
• •  View the online Tax Update newsletters from the Department of Revenue for up to date information about Colorado state taxes.