Colorado sales tax

Download Colorado 2019 sales tax rates by ZIP code

Colorado state sales tax rate

2.9%
Base state sales tax rate 2.9%
Local rate range* 0%-8.3%
Total rate range* 2.9%-11.2%

* Due to varying local sales tax rates, we strongly recommend using our Colorado sales tax calculator to determine the exact sales tax rate for your location.

Avalara > State Sales Tax Rates > Colorado Sales Tax

Colorado sales tax details

The Colorado (CO) state sales tax rate is currently 2.9%. Depending on local municipalities, the total tax rate can be as high as 11.2%.

Companies doing business in Colorado need to register with the Colorado Department of Revenue. In addition, a number of municipalities require local registration for the purposes of collecting sales tax.

Colorado is a “home rule” state. Local-level tax rates in the state of Colorado are quite complex compared against local-level tax rates in other states. Colorado sales tax can be levied at the city/county/school/transportation and SPD (special purpose district) levels.

For sales tax registration, Colorado switched systems in October 2010. According to the Colorado Department of Revenue, all businesses must be using a number known as the new Colorado Account Number, which is eight digits. Numbers obtained prior to October 2010 are seven digits. In order to increase the accuracy of tax records, all businesses with seven digit numbers should add a “0” at the beginning of those original numbers.

Economic nexus is enforced in Colorado on. As of October 1, 2019, marketplace facilitators must collect and remit sales tax on taxable sales. Remote sellers will have to use destination sourcing to determine sales tax rates.

Colorado Sales Tax Rate Guide

Colorado sales tax guide for businesses

Our free, online guide covers all aspects of managing Colorado sales tax compliance. Topics include:

  • Business registration
  • Collecting sales tax
  • Filing sales tax returns
  • State nexus obligations
  • And more!

Visit the guide

Colorado sales tax calculator

Enter a valid address below and get the sales tax rate for the exact location
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Why can't I just use the ZIP code?

  • There are often multiple sales tax rates per ZIP code, county, and city.
  • ZIP codes often overlap, or become subsets of other ZIP codes, or represent no geographic region at all.
  • ZIP codes aren't stable. In any given year, the USPS makes numerous boundary changes to ZIP code areas.

For the most accurate sales tax rate, use an exact street address.

Your sales tax rate

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Combined Tax Rate

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Jurisdiction Breakdown

What do these tax rates mean?

  • The combined tax rate is the total sales tax rate of the jurisdiction for the address you submitted.

  • The jurisdiction breakdown shows the different sales tax rates making up the combined rate.

  • While most taxable products are subject to the combined sales tax rate, some items are taxed differently at state and local levels. Be sure to apply the correct sales tax rate to your sale.

The rates presented are current for the date and time you submitted the address, but may change at any time with new tax legislation.

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How to use this sales tax rate

  1. Determine who's responsible to collect and remit the sales tax amount. 

  2. Determine if your product or service is taxable in the responsible party’s jurisdictions.

  3. Apply the sales tax rate shown above to your taxable product or service’s value.

Colorado sales tax resources

Colorado sales tax rate changes

Need to know which sales tax rates in Colorado are changing? Check out our tax rate change tracker for details.

Colorado sales tax quick reference guide

This one-page guide to Colorado sales tax covers collection, filing, and due dates. Think of it as your compliance cheat-sheet.