While other sites charge a fee for this service, Group 1 Software is pleased to
make this site available for no charge to look up any Colorado address.
This product corrects and standardizes the address you provide in less time
than it takes you to type in the address. In addition to its address cleansing
and coding capabilities, this product returns information regarding the quality
of the match. For the system to return the proper information, however, you
must at least enter an Address and either the City and State or the ZIP Code.
The tax rate report provides a unique confirmation number, the address found
and the sales tax rate listed by jurisdiction. Please note that addresses that
geocode to the address or zip4 level are required to generate Tax Rate
information (addresses matched at the ZIP Code level are not considered highly
accurate and should be researched further).
The total tax rate for any jurisdiction must be computed by adding all taxes
applicable to that jurisdiction. The use tax is not in addition to the
For more information on tax rates, contact the
Colorado Department of Revenue or that applicable
For any questions concerning this site, please contact us at
As a convenience to
taxpayers, the State of
has provided a link to this Web site. Group 1 Software, Inc. is the owner and
operator of this service. Except as noted below regarding the "Hold Harmless"
regulation, the State does not warrant this company or its services. Please
contact Group 1 Software should you have any questions regarding the terms and
conditions under which it provides services or fees it charges. Group 1
Software’s system has been certified by the Colorado Department of Revenue
pursuant to Regulation (39)26-105.3 ("Hold Harmless" regulation. Retailers who
use this system are not liable for certain uncollected sales or use
taxes if the retailer relies on this system and, in the unlikely event, this
system incorrectly identifies or fails to identify the name of the state,
county, city and/or special districts in which the address is located.
Software is not an agent or employee of the State and the State is not
responsible to the user of this service or to any other person for the fees
that Group 1 Software charges or for services provided by Group 1 Software.
This agreement does not create in a user or third-party and against either the
State or against any local tax jurisdictions any right, title, action (whether
in law or in equity), claim for refund, claim of estoppel or waiver of taxes,
penalties or interest on same, including, but not limited to, any action based
on erroneous information provided by the State or Group 1 Software, or the
unavailability of either Group 1 Software services or the State's web site and
link to Group 1 Software.