About the Sales Tax Division
The City’s Sales Tax Division is responsible for collection of the following taxes and fees: sales, use, lodging and telephone taxes, and E911 surcharges. We assist businesses and the public in understanding how Thornton’s taxes apply to their operations or purchases. The Sales Tax Division is also responsible for auditing businesses to ensure that they are in compliance with the City Code.
Property taxes are administered by the County. Please contact Adams County directly for questions regarding your property taxes.
City of Thornton/Sales Tax Division
9500 Civic Center Drive, Suite #2050
Thornton, CO 80229
Hours: Monday-Friday 8:00am-5:00pm
Email: Sales Tax