Colorado I Business State Tax Extension I Fiduciaries

Modified on Tue, 21 Jan at 1:16 PM

State Name	Colorado
Business Entity Type	Fiduciaries
Extension Status	Approved Automatically
Return Due Date	April 15, 2025
Extended Due Date	October 15, 2025
Other Information	Colorado grants you an automatic 6-month extension to file your business tax return. The extension is NOT an extension to pay any taxes you may have due. Tax payments are due by the original return due date. Colorado does not have a specific extension form for Partnerships and LLCs.
Online Payment	Colorado \| Online Tax Extension Payment
Payment Voucher Form	DR 0105EP \| Estate/Trust Estimated Tax Payment Form
State Payment Agency	Colorado Department of Revenue
Mailing Address with Payment	Colorado Department of Revenue 1375 Sherman Street Denver, CO 80261-0008
Failure to File Penalties	Greater of: • 12% of tax due; • 5% of tax due for first month, plus 1/2% for each additional month; or • $5.
Failure to Pay Penalties	Greater of: • 12% of tax due; • 5% of tax due for first month, plus 1/2% for each additional month; or • $5.