How to Form an LLC in Colorado (2026 Guide)

Step 1Pick a name Colorado will accept

Your LLC’s name has to be distinguishable from every other entity name already on record with the Secretary of State. Colorado is strict about what counts as “different”: adding or removing periods, commas, apostrophes or underscores does not make a name distinguishable, and capital versus lowercase letters are treated as the same.

The name must also include a term that identifies it as an LLC, such as “Limited Liability Company,” “Ltd. Liability Company,” “LLC” or “L.L.C.”

Check your idea with the state’s Name Availability Search. It tells you whether an exact name is available but does not show close matches, so it is worth also browsing the business database search for similar names. If you are not ready to file, you can reserve a name for 120 days for $25, and renew the reservation if needed.

Step 2Line up a registered agent

Every Colorado LLC must name one registered agent when it forms. The agent can be an individual (including you) or a business entity, must agree to serve, and needs a physical street address in Colorado. The Secretary of State cannot be your agent.

• Individual agents must be 18 or older, live in Colorado or have a usual place of business there, and hold a current Colorado driver’s license or ID card or complete the state’s alternative address verification process.
• Entity agents must be in good standing with the Secretary of State and have a usual place of business in Colorado.

Step 3File the Articles of Organization online

Colorado does not offer a paper option for this filing. You complete it on the Secretary of State’s filing site. The form asks for:

• the LLC’s name;
• a principal office street address (no P.O. box), plus a mailing address if different;
• the registered agent’s name and Colorado street address, and a checkbox confirming the agent consented;
• the name and mailing address of each person forming the LLC;
• whether the LLC is managed by its members or by managers, and a statement that it has at least one member;
• the name and address of the individual causing the document to be filed.

Keep in mind that the addresses you enter become public record. You need written consent before listing anyone else’s name or address, and the person filing affirms under penalty of perjury that the information is true.

The fee is $50, paid by credit card, debit card or prepaid account. Online filings are processed in real time: your LLC exists as soon as payment is confirmed. You can instead choose a delayed effective date up to 90 days out. After filing, the state assigns an ID number; this is not a tax ID or EIN.

Step 4Keep up with the yearly Periodic Report

Colorado calls its annual report a Periodic Report. It must be filed every year, online only, and costs $25. It mainly confirms your principal office address and registered agent.

Your entity’s Summary page on the Secretary of State site shows its Periodic Report Month. You can file without penalty anytime from two months before that month through two months after it. The report is due by the last day of the second month following your report month (for a January report month, March 31).

If you miss that deadline, your LLC becomes “Noncompliant” and the late penalty of $50 is assessed. After 60 days in Noncompliant status, the LLC becomes “Delinquent.” Getting back to good standing then requires a Statement Curing Delinquency ($100).