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Online Sales Tax Filing

In an effort to help mitigate the spread of Covid-19, the Revenue office is closed and staff is working remotely. If you need assistance, please send an email to or call us at 720-898-7100. 

New business licensing and tax system coming March 1, 2021! Registration letters will be sent to all businesses in late-February with onboarding instructions and new account information.Online Sales and Use Tax



How Do I Get Started?

If you have an account, you can use the form to request online access. Turn around time is generally less than one hour during regular, business hours....Monday through Friday, 8 AM - 5 PM. Only licensed accounts have the ability to file online. All accounts are required to file and pay online. Please know that we are available to help you, answer questions and assist you with any issues. 

What if I Make a Mistake?

If you made a mistake on your return, please call our office at 720-898-7100 and we can reset your filing. If you need to amend a return, you can send a paper return, reference the correct period and mark AMENDED on the top of the return.

I Have a Debit Block, What is Your ID?

Please be sure to set up company ID 0000000160 with your bank BEFORE attempting payment. If you submit payment before this has been set up your bank will reject the payment and you will be required to clear authorizations with your bank and the payment processor before any other payments will be allowed.

How Do I Pay?

We accept all payment types including e-check, credit card and ACH credit and wire payments. If you need electronic payment details, please contact our office.

How Much Does it Cost?

Online filing is free. We allow e-check and credit card payments from $1 up to $500,000. E-check payments are free and credit card payments are assessed a 2.39% fee, with a $1.50 minimum, which is paid to the payment processing company. Please contact your personal bank for ACH and electronic payment charges.

Contact Information

  •  Main Telephone Number: