Colorado . 2026 filing guide
Colorado Secretary of State filings, deadlines, and how to do them right.
Annual reports, business search, registered agent changes, reinstatement, dissolution, tax registration. Every Colorado filing explained, plus the business environment, regulatory bodies, and a year-round compliance calendar. Verified against the Colorado Secretary of State, Business Division as of June 2026.
Verified against Colorado Secretary of State, Business Division on Jun 12, 2026
Agency
Colorado Secretary of State, Business Division
Branded as Colorado Secretary of State
Phone
303-894-2200
Mon-Fri 8am-5pm MT
Annual due
Anniversary month (Periodic Report)
Delinquent status after 60 days, $50 penalty
Processing
Same day
Online filings
Colorado business environment
Why founders choose Colorado (and what to know first)
Low annual report fee ($10). Same-day online filings. 4.4% flat income tax. Strong startup and aerospace ecosystem (Boulder, Denver). Free certified copies of state documents.
Economy
~$480B economy
Registered entities
~900,000 active entities
New formations / year
~150,000 annually
Key industries
Aerospace, technology, energy (oil/gas + renewables), tourism, cannabis (separate licensing), agriculture