Colorado Department of State Announces Year-End Hours of Service for Business Filing
Denver, December 22, 2025 - In observance of the Christmas and New Year holidays, the Colorado Department of State will be closed Wednesday, December 24 through Friday, December 26, and Thursday, January 1.
Due to yearly maintenance, online filing applications for new businesses will be unavailable from 11:30 PM on Wednesday, December 31 until 12:00 PM on Thursday, January 1.
Mergers or other paper documents must be received in the office no later than 3:00 PM on December 29. Please file as early as possible and do not wait until late afternoon on December 29 to submit your paper filings as circumstances beyond the Department's control (weather, illness, etc.) may prohibit our ability to process your filing in the timeline you are attempting to achieve. Filings not received during scheduled business hours will be processed the next working business day.
Please plan ahead and file earlier by using a delayed effective date and time if necessary for filings that must be effective on December 31.
Filing deadlines will not be extended.