First LLC Guide › Colorado
Starting an LLC in Colorado: what you should know first
Filing a Colorado LLC costs $50. The Periodic Report costs $25 a year. Our pick is Mainstay Filing; $697 covers three years.
By kind of owner
- Side hustle
- Quiet-year cost: $224 in year 2 with Mainstay Filing, including the $25 state report in that year.
- Online business
- Required registered agent. The address has to be a physical address in Colorado, either a home or a usual place of business. P.O. boxes are not accepted.
- Startup
- Filing: Articles of Organization with the Colorado Secretary of State. Write the operating agreement before you open the bank account.
- First-time owner
- Report due: Last day of the entity's anniversary month.
Questions
Best LLC formation service in Colorado for a first-time owner?
Mainstay Filing: $249 in year 1 including the $50 filing fee, $224 in year 2.
Sources
- Colo. Rev. Stat. § 7-80-203 (Formation); contents per § 7-80-204 (multira state research spine): www.sos.state.co.us/pubs/info_center/fees/business.html, checked August 12, 2026
- Colorado formation fee: Filing fee, official source read 2026-10-01: www.coloradosos.gov/pubs/info_center/fees/business.html, checked October 1, 2026
- Colorado Secretary of State (multira state research spine): www.sos.state.co.us/pubs/business/FAQs/reports.html, checked August 12, 2026
- Colorado Secretary of State (multira state research spine): www.sos.state.co.us/pubs/business/helpFiles/REPORT_HELP.html, checked August 12, 2026
- Colorado yearly filing: Periodic report, official source read 2026-10-01: www.coloradosos.gov/pubs/business/FAQs/reports.html, checked October 1, 2026
- Colorado report due date (multira state research spine, due dates verified 714/714): colorado.public.law/statutes/crs_7-90-501, checked August 12, 2026
- Colorado registered agent statute (C.R.S. § 7-90-701): www.sos.state.co.us/pubs/business/FAQs/regAgent.html, checked October 20, 2026