Westminster sales tax details
The minimum combined 2026 sales tax rate for Westminster, Colorado is 9.0%. This is the total of state, county, and city sales tax rates. The Colorado sales tax rate is currently 2.9%. The Westminster sales tax rate is 4.25%.
Westminster, Colorado sales tax rate
Westminster combined sales tax rate for 2026
9.0%
Colorado
2.9%
Adams County
0.75%
Westminster
4.25%
Rtd Greater Denver
1.0%
Scientific & Cultural Fac.(cd)
0.1%
Total rate range
9.0%
*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.
Download multi-state tax rate tables
Get sales tax rate tables for all the states where you do business. Download rates tables for multiple states down to the ZIP code.
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
Westminster 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.
