FAQs • Town of Castle Rock • CivicEngage

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What is the sales tax rate in Castle Rock?: Castle Rock's combined sales tax rate is 7.9%, which includes State of Colorado (2.9%), Douglas County (1%) and Town (4%).

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1. What is the sales tax rate in Castle Rock?: Castle Rock's combined sales tax rate is 7.9%, which includes State of Colorado (2.9%), Douglas County (1%) and Town (4%).

2. How do I obtain a business and tax license in Castle Rock?: Please visit the Revenue/Sales Tax page for the proper applications. Contact the Sales Tax Division via email or 303-660-1397.
Sales Tax Division

3. How do I get on the bid list?: All requests for proposals are posted on the Rocky Mountain Bid System website. Interested bidders need to register with Rocky Mountain Bid System. Direct any questions to:
Purchasing 303-660-1377
Town of Castle Rock
100 N Wilcox St.
Castle Rock, CO 80104

4. What Town services are paid for with tax money?: Your tax money supports the Town's Fire and Rescue, Police, streets, Parks, Open Space, Recreation Center and administration services.