All taxpayers should have the new sales tax address updated in their systems before March 31, 2012, to avoid applicable penalty and interest charges.

The new mailing address for sales tax returns is:

P.O. Box 151660
Lakewood, CO 80215-8660

Are you trying to file your Sales Tax Return for January 2012? Use this link until new returns can me mailed.

Questions? Email us.

Remember to file the proper tax form with the new 4 percent rate for the Town of Castle Rock. If you are an online filer using a third-party system, the new rate should be updated.

It is each business’ taxpayer’s responsibility to file the proper rate for the related tax period. Please check forms and online filing systems to ensure you are filing at 4 percent.

Sales tax returns need to be received by the Town, or postmarked, no later than the 20th of the month due. Monthly filers should submit the previous month’s sales. Quarterly filings are due April 20, July 20, Oct. 20 and Jan. 20. Annual filings are due Jan. 20.

Remember to pay your taxes on time to avoid interest and late fees. It’s important to properly file so later you aren’t responsible for paying the difference between the old and new tax rates. Your tax filing options are located on the left sidebar.

Send tax returns to
P.O. Box 151660
Lakewood, CO 80215-8660

Thank you for helping to make this transition a smooth one both for businesses and our community. We are here to help.

If you have questions, call 303-660-1397 or email us.