Form an LLC in Colorado: Secretary of State Steps and Fees (2026)

This guide walks through the actual mechanics of forming a Colorado LLC in the Secretary of State's online filing system at coloradosos.gov. Colorado runs an all-electronic shop: the Articles of Organization are filed online for $50 under Colo. Rev. Stat. § 7-80-203, the fee schedule lists the paper option as not available, and no numbered form exists anywhere in the process. Every step below references the real portal fields.

Before You Begin

Gather this information before starting your online filing:

• Your chosen LLC name (already verified as available)
• Principal office address (a home address works)
• Registered agent name and Colorado street address (learn about registered agent requirements), plus the agent's Colorado driver's license or state ID number if the agent is an individual
• Management type decision: member-managed or manager-managed
• Payment method: credit card or electronic check for the $50 fee

The Filing Steps, Numbered

1. Create an account at coloradosos.gov and choose "File a Document." One login covers this filing and every future one, including your Periodic Reports. There is no paper alternative; Colorado accepts LLC formations electronically only.
2. Select "Articles of Organization, Limited Liability Company." The portal presents a multi-screen form rather than a numbered PDF; Colorado's filing system has no form numbers at all.
3. Enter your LLC name with its designator. It must include "Limited Liability Company," "LLC," or "L.L.C.," be distinguishable from every entity already on record, avoid restricted words without licensing, and not imply a different entity type. The system checks availability in real time as you type.
4. Provide the principal office address. Home, commercial, or virtual office all work, but the address becomes public record, so privacy-minded filers often use a commercial address.
5. Designate the registered agent. Name, Colorado street address (a PO box will not do), and, for individual agents, the Colorado driver's license or state ID number required since July 1, 2025 under HB 24-1137. The agent must consent to the appointment.
6. Pick the management structure. Member-managed puts all members in charge day to day; manager-managed hands operations to named managers while other members stay passive. The choice appears in your Articles and shapes who can bind the LLC.
7. List the organizer. Colorado asks only for the person causing the LLC to be formed, not the members or managers, which keeps ownership off the public filing. The organizer can be you, an attorney, or a formation service.
8. Set the effective date. Immediate effectiveness on filing is the default; the portal also accepts a delayed effective date if you are timing the launch.
9. Skip or complete the optional provisions screen. Duration limits and activity restrictions can be added here; most filers leave it blank for flexibility.
10. Review, pay the $50, and submit. Pay by card or electronic check, keep the confirmation email, and download the filed Articles from your account once the state processes the filing.

No Numbered Form, No Paper Option

Worth repeating, because out-of-state guides get it wrong: Colorado has no "Form LLC-1" equivalent. The Articles of Organization exist only as an online workflow, the official fee page shows the paper column as "n/a," and the $50 is the whole state charge. If a website tells you to download and mail a Colorado LLC form, it is describing a filing that does not exist.

After Filing: Immediate Next Steps

1. Watch for the approval email, then download your filed Articles from your coloradosos.gov account.
2. Draft your operating agreement while you wait.
3. Apply for your EIN at irs.gov; it is free and issued immediately online.
4. Calendar your Periodic Report, the $25 annual filing due in your anniversary month (details).

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Common Filing Mistakes to Avoid

1. Name missing the required designator. It must say LLC, L.L.C., or Limited Liability Company.
2. Registered agent address given as a PO box. Colorado requires a street address.
3. Missing agent ID verification. Since HB 24-1137 took effect, individual agents need a Colorado driver's license or state ID number on the filing.
4. Typos in the LLC name. Fixing one afterward takes a separate amendment filing with its own fee.
5. Wrong management type selected. Understand the difference before filing; changing later also requires an amendment.

FAQ

Can I save my filing and come back later?

Yes. The coloradosos.gov system lets you save a draft tied to your account and finish it later.

What if I make a mistake on the filing?

Articles of Amendment can be filed through the same portal to correct errors; the amendment carries its own filing fee on the state schedule. Minor issues are sometimes resolved through SOS customer service.

Do I need a Colorado business license in addition to forming?

Formation creates your legal entity. Business licenses are separate and vary by municipality; Denver, Boulder, Aurora, Colorado Springs, and other cities each set their own requirements. See our business license guide.

Can someone else file on my behalf?

Yes. The organizer listed on the Articles does not need to be a member. Attorneys, formation services, and other representatives can file as organizer.