How to Get Your Colorado Sales Tax License

Registering for a Colorado sales tax license requires a $16 fee plus a $50 refundable deposit. You can complete the process online through the Colorado Department of Revenue. Here is exactly how to do it.

What You Will Need Before Starting

Gather this information before beginning your application:

• Federal Employer Identification Number (EIN) or Social Security Number
• Colorado business address (physical location)
• Mailing address if different from business location
• Business entity type (sole proprietor, LLC, corporation, etc.)
• Date you started or will start making sales in Colorado
• NAICS code (North American Industry Classification System)
• Description of products or services you sell
• Estimated monthly sales volume
• Payment method for the $16 license fee and $50 deposit

Step-by-Step Registration Process

Step 1: Access the MyBizColorado Portal

Visit the MyBizColorado portal at mybiz.colorado.gov. This is the state’s one-stop shop for business registration. You can also use Form CR 0100 for paper registration, but online is faster.

Step 2: Create an Account

If this is your first time using the portal, you will need to create an account with:

• Your name and contact information
• A username and password
• Security questions for account recovery

Save your login credentials — you will use this account for all future tax filings and payments.

Step 3: Complete the Business Registration

The online application walks you through several sections:

• Business Information: Legal name, DBA (doing business as), entity type, and EIN or SSN
• Location Details: Physical address where you conduct business
• Business Activities: What you sell, your NAICS code, and tax types you need
• Ownership Information: Names, addresses, and identification numbers for all owners

Step 4: Pay the License Fee and Deposit

Colorado requires:

• $16 license fee — prorated depending on date of issuance
• $50 refundable deposit — returned after you file returns and remit more than $50 in sales tax

Pay online via credit card or electronic check.

Step 5: Receive Your License

Processing is typically immediate for online applications. Your sales tax license will be available to print from your account. Display it prominently at your place of business as required by Colorado law.

License Renewal

Colorado sales tax licenses expire on December 31 of odd-numbered years (2025, 2027, 2029, etc.). The CDOR will send renewal notices before expiration. Renew online through Revenue Online to avoid lapses.

Home-Rule City Registration

If you do business in home-rule cities like Denver, Colorado Springs, or Aurora, you may need to register separately with each city. The SUTS (Sales and Use Tax System) portal can simplify this by allowing single-point registration for participating cities.

Access SUTS at: colorado.gov/revenueonline

Common Mistakes to Avoid

• Forgetting home-rule cities — State registration does not cover all local jurisdictions
• Incorrect EIN — Double-check your federal identification number before submitting
• Wrong entity type — Make sure LLC vs. Corporation vs. Sole Proprietor matches your legal formation
• Missing the renewal — Licenses expire December 31 of odd years; set a reminder

After You Are Registered

With your license in hand, you are authorized to:

• Collect Colorado sales tax from customers
• Purchase inventory tax-free using a resale certificate
• File and remit sales tax returns (monthly, quarterly, or annually based on your volume)

Related Colorado Guides

Feeling overwhelmed by the process?

While you can register directly with the Colorado DOR, some business owners prefer extra guidance. Our filing service reviews your information and walks you through each step. See if it is right for you ?