How to Start an LLC in Colorado: $50 Online, With an Agent ID Check

By Boost Suite Editorial Team|Updated October 20, 2026

Colorado takes no paper: you start an LLC in Colorado by filling in the Articles of Organization online only, for $50, with the Colorado Secretary of State, and the filing is processed the moment you pay.

The registered agent item is where filings stop

An individual agent must be 18 or older and have a primary residence or “a usual place of business in Colorado,” meaning a physical street address “customarily open during normal business hours.” A P.O. box or commercial mailbox doesn’t qualify, so a virtual address can’t make you your own agent.

The individual also “must hold a current, valid Colorado driver’s license or ID card, or verify their residency status with our office,” and the form asks for that number.

Without a Colorado license or ID: the passcode

• Proof of address in the agent’s exact name, issued within the last 90 days: a utility bill, a bank or credit card statement, a mortgage statement, government mail or a tribal ID.
• Review “may take a few business days”; the passcode then lasts 45 days.
• Without it, “you will not be able to complete your filing.”

The passcode verifies a Colorado resident’s status. It doesn’t qualify someone who lives and works outside Colorado; that owner names a business entity in good standing with a usual place of business in Colorado, which is what a commercial registered agent is. Rules and passcode requests: the Secretary of State’s registered agent FAQ.

The principal office address and the agent’s name and address go on the LLC’s public record. An LLC can become its own agent only later, by changing the agent once it exists.

Do you have to form your LLC in Colorado?

If the business runs in Colorado, forming it here is the cheapest route. An LLC formed in Wyoming or Delaware that does business in Colorado generally registers here too; the Secretary of State’s fee schedule lists $100 for a Foreign Entity Authority Statement, on top of the home state’s fees.

Privacy doesn’t need another state either. The Colorado Articles ask for no member names, and the principal office can be anywhere, even outside the United States.

How to start an LLC in Colorado when nothing is reviewed before filing

The name comes first, on its own page: the form moves on only if the name is available. Then comes one online form, 14 items counting the name, in the order of the Secretary of State’s Articles help page.

Have five things ready: an available name, a physical principal office address, the agent’s details (Colorado street address and ID number or passcode), the organizer’s name and mailing address, and a U.S.-issued card.

Checking the name

The Name availability search answers for an exact name; the business database search shows similar names without saying whether yours is free. Capitals, periods, commas and apostrophes don’t make a name different, while “ABC LLC” and “ABC INC” are distinct.

A $25 reservation holds a name for 120 days. It’s claimed by typing the reserved name at the first item, and a Statement of Renewal of Reservation of Name extends it.

A trade name (DBA) costs $20 and isn’t exclusive: “more than one person can file the same trade name,” and it can’t be reserved.

Paying and after

• Nothing is reviewed before filing: check every item before you pay.
• Maintenance usually runs from 11:50 p.m. to 2:00 a.m. Mountain time: finish paying before then.
• Visa, MasterCard, American Express and Discover cards issued in the United States; no card fee appears on the fee schedule.
• Slow page? Don’t open a second window or click “Pay now” twice: it can create a duplicate filing.
• No copy is mailed: the filed Articles sit under “Filing history and documents” on the LLC’s record.

Under House Bill 26-1088, in effect since August 12, 2026, the Secretary of State can remove a filing from public view if the payment is reversed, according to its September 2026 announcement.

None of the 14 items covers profit splits, votes or a member leaving; those go in a Colorado LLC operating agreement, which is never filed.

When the first Periodic Report is due

A Colorado LLC doesn’t renew as such: it files a $25 Periodic Report every year. The window opens two months before the anniversary of the month the Articles took effect and closes at the end of the second month after it.

A late Colorado Periodic Report makes the LLC Noncompliant and adds a $50 penalty. Two months after the due date it becomes Delinquent; curing that costs $100.

Colorado doesn’t administratively dissolve an LLC for it, but a Delinquent LLC can’t sue to collect its debts, and after 400 days its name opens to other filers.

The state’s reminders come only by email or text, to the address entered on the Articles. The Secretary of State warns about private letters that “may mention an annual or periodic report” and ask for a fee; the real report is $25 on coloradosos.gov.

Colorado LLC tax filing requirements, single-member to S corporation

The Colorado Department of Revenue requires a Colorado return from any LLC “required to file a federal income tax return,” and generally follows the federal classification:

The automatic six-month extension covers filing, not payment.

In Colorado, “services are not subject to sales tax,” while goods generally are. A seller needs a state sales tax license for each location; most run two years and expire at the end of each odd-numbered year, with a $16 renewal fee. Home-rule cities license separately.

The IRS issues the employer identification number (EIN), free; the Secretary of State doesn’t. MyBizColorado then starts the other state registrations, including a payroll withholding account at no fee. For local licenses, the business checklist sends owners to city hall or the county clerk.

Renewal, dissolution and P.O. boxes in Colorado