Boulder sales tax details
The minimum combined 2024 sales tax rate for Boulder, Colorado is 9.05%. This is the total of state, county, and city sales tax rates. The Colorado sales tax rate is currently 2.9%. The Boulder sales tax rate is 3.86%.
Boulder, Colorado sales tax rates
Boulder sales tax range for 2024
9.05%
Colorado
2.9%
Boulder County
1.19%
Boulder
3.86%
Rtd Greater Denver
1.0%
Scientific & Cultural Fac.(cd)
0.1%
Total rate range
9.05%
*Rates are rounded to the nearest hundredth. Due to varying local sales tax rates, we strongly recommend our lookup and calculator tools on this page for the most accurate rates.
Sales tax rate lookup and sales tax item calculator
Look up the current rate for a specific address using the same geolocation technology that powers the Avalara AvaTax rate calculation engine.
Tax rates can vary within a county, a city, or even a ZIP code. Using a street address helps to ensure more accurate rates and calculations when compared to relying on broader geographic indicators.
*Rates are rounded to the nearest hundredth.
Additional resources
Boulder rates by ZIP and neighboring cities
Note: There can be variations within city and county lines. For more accurate rates, use the sales tax calculator.
