Sales & Use Tax

Tax Seminars

Are you a business owner, accountant or tax professional? Join the Commerce City’s Tax Division on Wednesday, Sept. 18 for a free seminar on city Sales and Use Tax from 9 a.m. to noon.

This in-person seminar will allow tax representatives from Commerce City to answer your questions and provide guidance towards preparing your business’ city tax returns efficiently and effectively.

RSVP by Monday, Sept. 16 with the Tax Division at salestax@c3gov.com or by calling 303-289-3628. Please request Spanish interpretation during RSVP if needed.

Online Tax Filing Systems

Commerce City provides businesses two online tax filing system options: MUNIRevs (city portal) and SUTS (State's portal).

File & Pay Your Returns Online

Please Note:

• Before you file your taxes, please visit the Business License page to review license requirements based on the location of your business.
• Commerce City does not require annual renewal of the general sales and use tax business license.

Sales Tax

In the city, the sales tax rate is 9.25%, broken out as follows:

As a home rule municipality, Commerce City has a tax code for the administration of its sales and use tax.

• Sales and Use Tax Code & Regulations(PDF, 1MB) (Updated 12/7/2020)
• Sales and Use Tax Return - Instructions(PDF, 214KB)
• Sales and Use Tax Return - Excel Sheet(XLSX, 58KB)
  • Note: If you are having printing issues, save the filled out Excel sheet as a PDF and then print the PDF version
• Sales and Use Tax Return - PDF Version(PDF, 171KB)

Construction & Contractors

• Construction Industry Guide(PDF, 214KB)
• Construction Equipment Declaration(PDF, 392KB)
• Prepaid Tax Estimate Form(PDF, 183KB) (for contractors working on projects that do not require a city permit)

Resources

• Active Sales and Use Tax Accounts(PDF, 980KB) (Updated 04/2024)
• Affidavit of Exempt Sale(PDF, 271KB)
• Business Licensing
• Claim for Refund(PDF, 116KB)
• Power of Attorney(PDF, 168KB) (Fillable Form)
• Property Address Lookup
• Voluntary Disclosure Guidelines(PDF, 108KB)
• Rules Governing Finance Hearings(PDF, 267KB) (Updated 2/11/2022)
• Single Use Bag Fee
• Tax Compliance Guide Marijuana – Medical and Recreational Retail Sales(PDF, 279KB)