How to Start an LLC in Colorado (2026)
To start an LLC in Colorado, you file Articles of Organization online with the Colorado Secretary of State. The fee is $50. Colorado processes online filings right away.
Instead of a newspaper notice or a separate first-year list, Colorado's main ongoing rule for an LLC is a $25 Periodic Report.
This guide covers forming a new LLC in Colorado, from name to EIN. If you already have an LLC in another state and want to do business here too, you'll file a Statement of Foreign Entity Authority instead. The FAQ below covers how that works.
Quick Summary
- Search your name before you file. A rejected filing over a name conflict still costs you the trip back through the online system.
- Your registered agent needs a valid Colorado ID and must agree to serve. Use your own address, or hire a commercial agent for privacy.
- File your Periodic Report on time, or your LLC slides to Noncompliant, then Delinquent. Getting back to good standing takes another filing.
Colorado LLC Requirements at a Glance
Here's the fast version of what Colorado expects from a new LLC, pulled from the Secretary of State's own filing pages.
| LLC requirement | State-specific answer |
|---|---|
| Filing document | Articles of Organization (Limited Liability Company), filed under §§7-90-301 et seq. and 7-80-204, C.R.S. |
| Filing authority | Colorado Secretary of State, Business Organizations Division |
| State filing fee | $50.00 (online only, no paper filing option for this document) |
| Online filing | Yes, Colorado Secretary of State online filing system |
| Processing time | Online: real time, processed immediately after payment confirmation. Paper-only documents (not Articles of Organization): 7-10 business days, expedite available for $150 (3 business days) |
| Registered agent | Individual: 18+, valid Colorado ID, in-state address. Entity: registered, in good standing. Must consent. |
| Annual report | Called a Periodic Report: $25.00, filed online, due 2 months before to 2 months after the LLC's reporting month |
| Publication required? | No publication requirement |
| State business tax | None, pass-through by default. Corporate election files its own return. Colorado Dept. of Revenue administers. |
| Last verified | September 3, 2026 |
How to Start an LLC in Colorado: 5 Steps
Forming a Colorado LLC takes five steps when you handle them in order. The first three create the company. The last two get it ready to run.
Step 1: Choose and check your LLC name
Your name has to include a designator: "limited liability company," "ltd. liability company," "limited liability co.," "ltd. liability co.," "limited," "l.l.c.," "llc," or "ltd." It also has to be distinguishable from every other name already on record with the Secretary of State [1].
Run your proposed name through the Business Database Search or the dedicated Name Availability Search tool before you file anything. If you're not ready to file yet, you can reserve a name for 120 days.
Step 2: Appoint a registered agent
Colorado recently tightened its registered agent rules. A person who serves as agent must be 18 or older. They need a current Colorado ID or driver's license, plus a home or office in the state.
A business that serves as agent must be registered with the state and in good standing, with an office here too. Either way, the agent has to agree to the role. It can't be the Secretary of State's own office.
A member or manager can fill the role for free. So can an entity already in good standing. Hire a registered agent service in Colorado instead if you'd rather keep that address off the public record.
Step 3: File the Articles of Organization with the Colorado Secretary of State
There's no paper option for the Articles of Organization, and no expedite tier either, since online filings already process in real time. The next section walks through everything the form asks for, field by field.
Plenty of founders use a Colorado LLC formation service to handle the filing. Our full guide to starting an LLC shows how the process compares across states.
Step 4: Create an operating agreement
Colorado law doesn't require an LLC to have an operating agreement. If you write one, it doesn't even have to be in writing.
Skip it, though, and the state's default LLC rules fill the gaps on how your company runs. Write your own, and your own terms stay in control instead.
Step 5: Get an EIN
You can get an EIN at no cost straight from the IRS website, and it's issued right away once your online application clears.
Form your LLC with the state first, since you'll need that to apply. You'll also use the EIN to open a Colorado sales tax account or a wage withholding account if your business needs one.
Filing the Articles of Organization in Colorado: What to Expect
1. What the form asks for
The Articles of Organization form starts with your entity name, then asks for your main office's street address. That has to be a real street address instead of a PO box. You can add a separate mailing address if mail can't reach that street.
Next comes your registered agent's name, their Colorado street address and an optional mailing address for them. You'll check a box to confirm the agent agreed to serve.
Then the form wants the name and mailing address of each organizer. At least one has to be 18 or older.
It also asks whether the LLC is run by managers or by its members, and you'll confirm that the LLC has at least one member.
Two more fields round it out: a delayed start date up to 90 days out, and the name and address of whoever submits the filing.
2. Fee and payment methods
The filing fee is $50, and it's online-only [2]. Colorado doesn't take a paper version of this form. You can pay with a Visa, MasterCard, American Express or Discover credit or debit card issued in the United States.
Prepaid or gift cards from those same networks work too. Frequent filers can open a prepaid account with the Secretary of State by mailing in a deposit check ahead of time.
3. Processing times
Online filings process in real time. Your Articles of Organization is filed the moment your payment clears. That's the whole timeline for this document, since Colorado doesn't offer a paper or in-person option for it. For how that compares to other states, see how long LLC approval takes in Colorado.
| Filing method | Processing time |
|---|---|
| Online | Real time. The document is processed immediately after payment confirmation |
| Not offered for the Articles of Organization (online filing only). Paper-only documents of other kinds are processed in 7-10 business days | |
| In person | Not offered. The filing FAQ describes only online (real-time) and paper-only (mailed) documents, with no walk-in filing counter option |
| Expedited | Not offered for online filings (already real-time). Paper-only expedite is processed within 3 business days of receipt for a $150.00 fee |
| Current state estimate | Not published. The SOS filing FAQ states only the standard online (real time) and paper (7-10 business day) timelines, with no separate current-backlog notice |
4. Where to file by mail or in person
There isn't a mailing address for this filing. Colorado requires it to go through the online system instead. The Secretary of State's office, at 1700 Broadway, Suite 550, Denver, CO 80290, handles other mail and the small set of documents that stay paper-only. The Articles of Organization isn't one of them.
5. Common reasons filings are rejected
The Secretary of State doesn't publish a list of rejection reasons, and the office doesn't pre-review your filing before you submit it.
The online system checks that every required field is filled in and that your chosen name clears the availability check, then accepts the filing in real time.
Beyond that, you must make sure the details you entered are correct, since the state doesn't check that for you.
6. What you receive when it is approved
Colorado doesn't mail you a copy of your filing. Instead, the filed document shows up right away on your entity's Summary page, under "Filing history and documents," where you can view and print it whenever you need to.
What It Costs to Start an LLC in Colorado
Beyond the filing fee covered above, Colorado keeps its costs light compared to a lot of other states. Our full breakdown of what an LLC costs in Colorado shows how it stacks up.
| Cost item | Amount |
|---|---|
| State filing fee | $50.00 (online only, no paper filing option for this document) |
| Name reservation | $25.00, reservation lasts 120 days |
| Registered agent | $0 if a qualifying member, manager or in-good-standing entity serves. No published commercial rate |
| Certified copy | Free (online) |
| Expedited filing | Not offered as a separate online tier (online filings are already real-time). Paper-only expedite is $150.00, processed within 3 business days |
| Annual report | Called a Periodic Report: $25.00, filed online, due 2 months before to 2 months after the LLC's reporting month |
| Other mandatory state fees | None beyond the Articles of Organization fee and the annual Periodic Report |
Everything past the filing fee and the Periodic Report is optional. You only pay for a name reservation if you want to lock in a name before you're ready to file. You only pay for a commercial registered agent if you'd rather not use your own address.
Certified copies come free through the online system, and you won't need to pay an expedite fee, since your filing is already processed the moment it's submitted.
Colorado-Specific Rules That Change the Process
1. Naming rules and restricted words
Your name can't use any term that would break another Colorado law. That's how the state handles words like "bank" or "insurance," which need that industry's own regulator on board before the Secretary of State will accept the name.
Colorado doesn't make you post a notice about your new LLC in a newspaper, unlike a handful of other states.
If you ever need to check what's already on file, the Colorado business entity search covers both name conflicts and existing filings.
If you picked the wrong name or need a new one later, you can change your LLC's name in Colorado with the right form.
2. Professional LLC rules
Certain licensed jobs fall under Colorado's rules for professional service companies and may need a special word in their name. That list includes accountants, attorneys, chiropractors, dentists, medical and eye care practices, physical therapists, podiatrists, psychologists, social workers, marriage and family therapists and counselors.
"P.L.L.C." or "PLLC" is an allowed short form for these entities, but you still file the same Articles of Organization as any other LLC. There's no separate form just for these jobs.
3. Member vs manager disclosure
Your Articles of Organization has to say whether managers or members run the company, plus the true name and mailing address of whoever forms it and of your registered agent.
It doesn't ask for the names of your actual members or managers, so that detail stays off the public filing.
4. Periodic report deadline and fee
Colorado's version of an annual report is the Periodic Report. It costs $25, is filed online and is due anywhere from two months before to two months after your LLC's own reporting month.
If your registered agent quits or you just want a new one, you'll change your registered agent in Colorado instead of waiting for your next Periodic Report.
5. State business tax
Colorado doesn't charge LLCs a separate franchise or privilege tax. By default, your LLC's profits pass through to your own Colorado income tax return. If you pick corporate tax status instead, the LLC files its own state business income tax return.
Either way, that's handled through Colorado's Department of Revenue. Our guide to filing LLC taxes in Colorado covers the details.
6. Foreign LLC registration
An LLC formed in another state signs up to do business in Colorado by filing a Statement of Foreign Entity Authority, which costs $100 online.
If your true name is already taken here, you'll need to pick a different name that meets Colorado's own naming rules.
7. Business license system
There's no single statewide business license in Colorado. Depending on what you do, you might need a license from the Department of Regulatory Agencies, or from your city or county instead.
MyBizColorado is the state's own tool for signing up for accounts like sales tax or wage withholding that most new businesses need.
8. Missing your deadline
Miss your Periodic Report and your status changes to Noncompliant, then to Delinquent about two months after that if it's still not filed. A Delinquent entity has to file a Statement Curing Delinquency, plus a $50 late fee, to get back to good standing.
Let it go further and the state can dissolve your Colorado LLC. At that point, starting it back up takes Articles of Reinstatement instead of a Statement Curing Delinquency.
What to Do After Your Colorado LLC Is Approved
Once your Articles of Organization is filed, a few things turn a paper LLC into a working business. Start with your bank. Most banks want your filed Articles of Organization and your EIN before they'll open a business account.
Whether you need a state license depends on your line of work. DORA covers some businesses, and your city or county covers others. Check both before you open your doors.
If you'll sell goods or services that owe tax, or hire anyone, you'll also open a Colorado sales tax account and a wage withholding account. MyBizColorado, listed above, handles both in one place.
Once you have one or more employees, even part-time or family, Colorado requires workers' compensation insurance. Skipping it can cost you up to $500 for every day you go without it.
The one deadline you can't ignore going forward is the Periodic Report. Licenses, tax accounts and insurance only come up again if your situation changes, but the report comes due every year on its own schedule.
| Compliance item | Deadline, fee and department |
|---|---|
| Initial report | None required as a separate filing. The Periodic Report mechanism itself is the entity's first and ongoing report, due in the LLC's own reporting month |
| Annual or biennial report | $25.00, filed online with the Colorado Secretary of State, due in a window from 2 months before to 2 months after the LLC's reporting month |
| State tax registration | Sales tax license and/or wage withholding account via MyBizColorado or the Dept. of Revenue, if applicable |
| Renewal deadline | Not applicable to the LLC's own registration. A Trade Name (DBA), if filed, renews annually with the Secretary of State for $5.00 |
| Late fee | $50.00 late penalty. Missing the report moves the entity to Noncompliant, then Delinquent, requiring a Statement Curing Delinquency |
| Responsible state department | Colorado Secretary of State (filings and Periodic Report). Colorado Department of Revenue (tax registrations) |
FAQs
How Long Does Colorado LLC Approval Take?
Colorado LLC approval takes as little time as your online payment needs to clear, because this document has no paper filing route at all. There's no walk-in option either, so the online system is the only timeline that applies.
Can I Form a Professional LLC in Colorado?
Yes, you can form a professional LLC in Colorado if you're a dentist, counselor or another licensed professional under the state's rules for these entities. You'd still use a professional designator such as PLLC in the name.
Can I Move an Existing LLC Into Colorado?
Yes, you can move an existing LLC into Colorado, though the state calls it registering a foreign LLC rather than moving one. That filing runs $100 and goes through the Secretary of State.
Can I Use My Home Address for a Colorado LLC?
Yes, you can use your home address for a Colorado LLC's principal office or its registered agent, as long as it's a physical street address rather than a PO box. If you serve as your own agent, you also need a valid Colorado ID. That address becomes public record.
Does the Owner's Name Become Public When You Form an LLC in Colorado?
Yes, the owner's name can become public when you form an LLC in Colorado, though it depends on the role: your organizer and agent get named, while members and managers stay off the filing unless you add them.
Does Colorado Require LLCs to Publish a Notice?
No, Colorado doesn't require LLCs to publish a notice of formation in a newspaper. That's a step some other states still require, but Colorado's process skips it entirely.
References:
- https://olls.info/crs/crs2025-title-07.htm
- https://www.sos.state.co.us/pubs/info_center/fees/business.html
