Knowledge Base

Where can I find general sales and use tax rates?

This web page provides information for the local sales, use, and lodging taxes collected by the City of Thornton. For details on the State of Colorado sales tax call 303-238-7378.

The total combined sales tax rate in Thornton is 8.5%. This rate is broken down as follows: State of Colorado Base Sales Tax 2.9%, City of Thornton Sales Tax 3.75%, RTD Tax 1%, Adams County Sales Tax .75%, and Cultural Facilities District .1%.

The City of Thornton is a Home Rule City and collects its 3.75% sales tax. The remaining 4.75% tax should be reported directly to the Colorado Department of Revenue. To contact the Colorado Department of Revenue, please call 303-238-7378. The City of Thornton also collects a separate Hotel/Motel Lodging Tax of 7.0% on all room rentals of 30 days or less.  Marijuana city tax is 8.75%.

Generally all City taxes are due on the 20th day of the month following the previous month's business. If a due date falls on a weekend or holiday, the due date will be moved to the next working day. Sales tax is collected on most items purchased in the City, including food, movie tickets, short-term rentals and video games.

For additional information regarding the taxable status of other commodities and services, please call the Revenue Division at 303-538-7400 during regular business working hours.

Adams County is the taxing and collecting authority for the property, real estate and automobile taxes. For additional information on these taxes, please call Adams County at 303-659-2120.

For more information on Thornton's Sales and Use Taxes, visit the City's Tax Information Page (external link).

Updated 8/23/2024 2:13 PM
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