DOR Taxation web site

Local Taxes by Address

Find Local Taxes by Address
The following list of electronic database address 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 property or services.


Please note that by clicking on any of these links, you will leave the Colorado Department of Revenue Web site and enter a privately owned Web site 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.


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.  For links to a local government's Web page, please see the Colorado Municipal League (CML) Web site.


 

Certified Electronic Address Databases

 

Proxix Solutions, Inc. Pitney Bowes Group 1 Software

Find Tax Rates by Address

Go to: Proxix Solutions, Inc.  

Find Tax Rates by Address

Go to: Group 1 Software  

Local Government Access:
Local governments can contact Proxix Solutions, Inc. at support@proxix.com

to obtain access.

Local Government Access:
Local governments can contact Bob Meador at the telephone number or e-mail address below to obtain access.

More Information

2845 Wilderness Place
Boulder, CO 80301
www.proxix.com
Contact: Customer Support
(866) 781-2662

System Identification: Proxix Site-US Tax, CO DOR version #2.0 (both the hosted and installable version). Hosted solution is located at Boulder, Colorado.
Effective Date of Certification: Aug. 1, 2007
Expiration Date of Certification: December 31, 2009

More Information  

4750 Walnut Street, Suite 200
Boulder, CO 80301
www.g1.com
Contact: Bob Meador
Director, GeoTAX Product Management
(720) 564-3023
Bob_Meador@g1.com
System Identification: GeoTAX 5.0.1, located at Boulder, Colorado.
Effective Date of Certification: Aug. 10, 2007
Expiration Date of Certification: December 31, 2009

 

Designated Verifier

The Department designated the following person to act as the verifier and who will determine the accuracy of the database.

Bill Thoen
GISNet
1401 Walnut St., Suite C
Boulder, Colorado 80302
(303) 786-9961
bthoen@gisnet.com