Licensing and Sales and Use Tax
General Information
On January 1, 2020, the City of Castle Pines began collecting its own sales tax. Every person engaged in business in the City of Castle Pines must comply with the City’s licensing and tax laws. Businesses must register with the City by obtaining either a City Business License or a Contractor License.
In 2023, the City joined the Colorado Department of Revenue Sales and Use Tax Software (SUTS) system to streamline the process for businesses that file returns and pay taxes to multiple municipalities.
Businesses that collect the City of Castle Pines sales tax can file returns and pay the tax due to the City using either the City Direct Online Portal or the SUTS Portal which may be accessed using the links below.
On November 7, 2023, Castle Pines voters approved an additional temporary sales and use tax rate of one percent to fund repairing, maintaining, and improving streets and roads and related improvements. The additional one percent tax rate will be effective for 20 years. Beginning on January 1, 2024, the City sales and use tax rate will be 3.75%.
Pursuant to state statute, effective July 1, 2023, businesses that do not have a physical presence or only an incidental presence in the city are no longer required to apply for a City business license provided that the business has a state standard retail license. Also, pursuant to the same state senate bill, effective July 1, 2022, those businesses were no longer required to pay a business license fee.
In October 2023, the City Council eliminated the business license fee for all businesses. Therefore, businesses with a physical presence in the City must obtain and renew their business licenses; however, there will no longer be a fee imposed.
Review the Sales and Use Tax Frequently Asked Questions for more information.
Address Verification
Use the Sales Tax Address Lookup tool to determine if an address is within Castle Pines city limits and subject to the City’s 3.75% sales tax rate. When in doubt, please contact the City’s Sales Tax and Business Licensing Division.
Contacting the Sales Tax and Business Licensing Division
To contact the Sales Tax and Business Licensing Division, call 303-376-3565 or email salestax@castlepinesco.gov.
Licensing, Filing, and Paying Sales Tax
Either the City Direct Online Portal or the SUTS Portal may be used by businesses to file returns, pay taxes due, and print copies of sales tax returns. Using the SUTS Portal adds the convenience of filing returns and paying taxes due for businesses that are filing returns and paying taxes to multiple jurisdictions in the State of Colorado. The City Direct Online Portal can be used by businesses with a physical presence in the City to apply for, obtain, and renew a City Business License. Businesses without a physical presence or only an incidental presence are not required to apply for a City Business License, provided they have a state standard retail license.
City Direct Online Portal SUTS PortalUpdate My Business Information Close My Account
Additional Resources
City Tax Rate
The City Sales and Use Tax rate is 3.75% (effective January 1, 2024). The total sales tax rate within the City of Castle Pines is 7.75%, as follows:
- City of Castle Pines: 3.75%
- Scientific & Cultural Facilities District (SCFD): 0.10%
- Douglas County: 1.00%
- State of Colorado: 2.90%
- Total: 7.75%