Estimated tax payments are due in four equal installments on the following dates. For additional information, see FYI Income 51.
- April 15 (first calendar quarter)
- June 15 (second calendar quarter)
- September 15 (third calendar quarter)
- January 15 (fourth calendar quarter)
If the due date falls on a Saturday, Sunday, or state holiday, payment is due on the next business day.
Estimated Payment Information
- For instructions on how to compute estimated income tax, see the worksheet provided on the DR 0104EP form.
- You can see a record of your estimated tax payments in your Revenue Online account.
- Estimated tax payments are claimed when you file your Colorado Individual Income Tax Return (DR 0104).
For more information, review the Individual Income Tax Guide.
Credit/Debit Card or E-Check
Credit/debit card or e-check through Revenue Online. You do not need to be logged in to your Revenue Online account to make the payment. Visit the Credit/Debit Card or E-Check web page for more information.
Electronic Funds Transfer (EFT)
Check or Money Order
Make the check or money order payable to the Colorado Department of Revenue.
- A check should never be sent to the Department of Revenue without a voucher form.
- Do not send a copy of the return.
- Write your Social Security number, the tax year, and the words 'Form DR0104EP' on the check.
- Do not staple the check to your paper return.
Send the payment to:
Colorado Department of Revenue
Denver, CO 80261-0008