Certified Address Databases

"Hold Harmless" Tax Rate Service Changes are Coming Soon

The Department has developed a new tool to help taxpayers comply with sales and use tax requirements. The Sales and Use Tax System (SUTS) is a one-stop portal that will allow taxpayers to do all manner of tasks related to collecting and remitting retail sales tax in an easy, automated, and seamless fashion. The Sales & Use Tax System includes a Sales Tax Remittance Portal and a Geographic Information System (GIS).

SUTS will initially be available for businesses with retail sales over $100,000 per year.  Additional businesses will be able to begin using the system next year. To sign up, visit Colorado.gov/Revenue/SUTS, then select "Go" under "New Users Register."    

Once the system is online and available to all retailers, the Department will implement important changes required by state statute. These include changes to sourcing rules for certain taxpayers.  Also, the Department will no longer certify third-party address sourcing databases. However, the use of third-party databases may qualify for the new hold-harmless protection provided under section 39-26-105.2, C.R.S. The provider must be verified to use the most recent information provided by the SUTS database. Taxpayers should check with their providers to determine if they qualify.

The Department will notify taxpayers and tax professionals at least 90 days ahead of these changes, so it is recommended that taxpayers and tax professionals sign up to receive Sales & Use Tax Email Alerts. An email will be sent to email alert subscribers announcing when the 90-day period will begin.

Find Local Tax Rates by Address

The following list of electronic address database providers are currently certified by the Department. Taxpayers who use these certified databases will not be liable for sales and use taxes otherwise owed to the State of Colorado and state-collected municipalities, counties and special districts if the database incorrectly designates the location of a sale, storage, use or consumption of taxable tangible personal property or services. This is the "hold harmless" provision. More information is available on the How To Look Up Sales & Use Tax Rates web page.

Participating Home-Rule Cities and Counties

Arvada, Aurora, Boulder, Brighton, Denver, Longmont, Northglenn, Silverthorne, Westminster, Wheat Ridge, and Woodland Park have enacted ordinances that hold taxpayers harmless if they rely on these certified databases. To visit a local government webpage, see the Colorado Department of Local Affairs, Active Colorado Municipalities.

Certified Electronic Address Databases

Please note that by clicking on any of these links, you will leave the Colorado Department of Revenue website and enter a privately owned website created, operated and maintained by a private business. The Colorado Department of Revenue is not endorsing its products, services, or privacy or security policies. We recommend you review the business's information collection policy or terms and conditions to fully understand what information is collected by this private business.

 
 
Dealr, Inc.
Pitney Bowes Software
Sovos Compliance TTR, Inc.
No Free Lookup Tool No Free Lookup Tool Free Lookup Tool Free Lookup Tool
Product Contact:
720-772-7706
Local Government Access Contact:
Patrick Collins: Senior Product Manager
Product Contact:
https://sovos.com/contact-us
860-532-0829
Product Contact:
COrates@ttrus.com
866-578-8193 or 503-472-8500
System Identification:
dealr.tax powered by dealr.cloud
Effective Date of Certification:
July 17, 2018
Expiration Date of Certification:
July 16, 2021
Company Information
System Identification:
GeoTAX 7.2., located at Boulder, Colorado.
Effective Date of Certification:
August 22, 2016
Expiration Date of Certification:
September 26, 2021
Company Information
System Identification:
Sovos GTD v. 8.4+, Taxify.co
Effective Date of Certification:
July 20, 2016
Expiration Date of Certification:
September 7, 2021
System Identification:
TTR, Inc., The Tax Answer Company
Effective Date of Certification:
October 17, 2018
Expiration Date of Certification:
October 16, 2021