Colorado LLC Types — Choose the Right Structure
Colorado allows several types of LLCs, each suited to different business situations. This page overviews your options and links to detailed guides for each. Whether you're a solo entrepreneur, a group of partners, a licensed professional, or an out-of-state business, Colorado has an LLC structure that fits. For formation details, see how to form a Colorado LLC.
Available LLC Types in Colorado
| Type | Best For | Key Feature |
|---|---|---|
| Single-Member LLC | Solo entrepreneurs | One owner, simplest structure |
| Multi-Member LLC | Partnerships, groups | Multiple owners, operating agreement critical |
| Professional LLC (PLLC) | Licensed professionals | Required for certain regulated professions |
| Foreign LLC | Out-of-state LLCs operating in CO | Registration (not formation) in Colorado |
| Series LLC | N/A | NOT available in Colorado |
| Domestic vs Foreign | Understanding the distinction | Where your LLC is "from" vs. where it operates |
What Colorado Does NOT Allow
Series LLC: Colorado does not have a Series LLC statute. If you need liability isolation between multiple business activities, form separate standard LLCs (one per activity or property). See our Series LLC page for alternatives.
Colorado LLC Formation Basics (All Types)
Ready to get started?
Get StartedRegardless of type, all Colorado LLCs:
- File Articles of Organization through sos.colorado.gov ($50)
- Need a registered agent with a Colorado street address
- Must comply with HB 24-1137 identity verification (effective July 2025)
- File annual Periodic Reports ($25)
- Are governed by the Colorado LLC Act
The differences between types relate to membership structure, professional requirements, and where the LLC was originally formed.
Choosing Your Structure
Solo owner, no professional license: Single-member LLC — simplest to form and maintain
Two or more owners: Multi-member LLC — operating agreement defines the relationship
Doctor, lawyer, accountant, architect, engineer: Professional LLC — Colorado requires this for certain licensed professions
Already have an LLC in another state, now operating in Colorado: Foreign LLC registration — doesn't create a new entity, registers your existing one
FAQ
Which LLC type is most common in Colorado?
Single-member LLCs are the most frequently filed in Colorado, followed by multi-member LLCs. The low $50 formation fee makes it accessible for solo entrepreneurs.
Can I change my LLC type later?
You can add members to a single-member LLC (making it multi-member) or remove members. Professional LLC requirements are based on the profession, not a choice. These changes may require amendments to your Articles ($25).
Do different LLC types cost different amounts to form?
No. Colorado charges $50 for Articles of Organization regardless of whether it's single-member, multi-member, or professional. Foreign LLC registration costs $100 (it's a different filing, not formation).