Learn the steps to form an LLC in Colorado – from choosing your name to filing your Articles of Organization. $1 + $50 state fee. Start today.
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Filing fee: $50 (Articles of Organization)
Processing time: Immediate — Colorado LLC filings are online only, so there is no slower mail option
State agency: Colorado Secretary of State
Periodic Report due: Every year during a 5-month window around your LLC’s anniversary month ($25). A $50 late fee applies if you miss the deadline.
State tax rate: Flat 4.4% state income tax on pass-through income and a 2.9% statewide sales tax; no franchise tax and no general state business license
Start your U.S. business journey today. Form your company with confidence and let Brio handle the paperwork.
Forming an LLC in Colorado takes 5 steps: choose and check your business name, appoint a Registered Agent with a physical Colorado address, file Articles of Organization online with the Secretary of State, draft an operating agreement, and get an Employer Identification Number (EIN) from the IRS. The state filing fee is $50.
Colorado pairs one of the lowest formation costs in the country — a $50 filing fee — with a simple flat 4.4% income tax and no franchise or privilege tax on LLCs. An LLC gives you personal liability protection and pass-through taxation without the administrative overhead of a corporation — a combination that works well for most Colorado entrepreneurs.
Colorado also keeps the process itself painless: every filing goes through the Secretary of State’s online system and is approved immediately, so there’s no waiting on paper forms. Ongoing paperwork is light too — a $25 Periodic Report each year and no general state business license keep the compliance burden lower than in many other states.
Unlike some states, Colorado doesn’t require you to reserve your name before filing — you simply claim it when you file your Articles of Organization. If you’re not ready to file yet, you can optionally reserve a name online through the Secretary of State. The fee is $25, and the reservation holds your name for 120 days, renewable in 120-day increments.
Your LLC name must be distinguishable from other registered businesses in Colorado and must include a designator like “Limited Liability Company,” “LLC,” “L.L.C.,” or “Ltd.” Check the Secretary of State’s business name database before you file to avoid a rejection.
Every Colorado LLC must have a registered agent — a person or entity designated to receive legal notices and government documents on behalf of the business. The agent must have a physical street address in Colorado (a P.O. box doesn’t count) and be available during regular business hours.
You can serve as your own registered agent if you’re 18 or older with a physical Colorado address — note that since July 2025, individual agents must also verify their identity with a Colorado ID or the state’s mailed-passcode process. Many business owners use a professional registered agent service instead — it keeps your personal address off public records and ensures someone is always available to receive documents.
The Articles of Organization is the document that legally creates your Colorado LLC. You file it with the Colorado Secretary of State — online only, since the state doesn’t accept LLC filings by mail. That works in your favor: online submissions are processed immediately, and your LLC is generally approved the same day you file.
The Articles must include your LLC’s name, its principal office street address, your registered agent’s name and Colorado street address, whether the LLC is managed by members or managers, the name and address of the person forming it, and a statement that the LLC has at least one member. The state filing fee is $50, payable by credit or debit card.
Colorado doesn’t require you to file an operating agreement with the state, but you should have one. It’s the internal document that defines how your LLC is managed — who owns what, how profits are distributed, and how decisions get made. Without one, Colorado’s default LLC statutes fill in the gaps, which may not reflect what you actually want.
Your operating agreement should specify whether the LLC is member-managed or manager-managed — a choice you also declare in your Articles of Organization. In a member-managed LLC, all owners share day-to-day authority. In a manager-managed LLC, a designated manager handles operations while other members retain economic rights. A written agreement is the version that holds up when disputes arise.
An Employer Identification Number (EIN) is a 9-digit federal tax ID issued by the IRS. Your Colorado LLC needs one to open a business bank account, hire employees, and file federal taxes. Applying online at irs.gov is free and issues your EIN immediately after you complete the application.
To use the IRS online application, the responsible party must have a valid Social Security Number (SSN) or Individual Taxpayer Identification Number (ITIN), and the business must have its principal place of business in the United States. The IRS does not charge a fee for issuing an EIN.
Colorado LLCs file one report with the Secretary of State: a $25 Periodic Report every year. It’s due during a 5-month window tied to your LLC’s anniversary month — you can file starting 2 months before that month, and the deadline is the end of the second month after it. The state emails reminders if you sign up for its notification service, but filing on time is your responsibility.
Missing the window adds a $50 late fee and marks your LLC Noncompliant; leave it unfiled long enough and the LLC becomes Delinquent, which costs $100 to cure and can affect your ability to do business in Colorado. There’s no general state business license, but if you sell taxable goods you’ll need a Colorado sales tax license from the Department of Revenue.
The required Colorado state fee is $50 to file the Articles of Organization with the Secretary of State. After that, the annual Periodic Report costs $25, and reserving your name before filing is optional at $25 for 120 days. There’s no additional state fee to get your EIN; the IRS issues EINs for free.
Yes. Colorado allows a single person to form and own an LLC – this is called a single-member LLC. You can complete the Articles of Organization filing online through the Secretary of State without an attorney. You’ll still need to appoint a registered agent with a physical Colorado address, but that can be yourself if you qualify.
No. Colorado charges a $50 Articles of Organization fee – that’s a required state fee you can’t avoid. What you can avoid is paying extra for formation help. We handle your Colorado LLC filing for $1; you only pay the required state fees.
Yes – Colorado calls it the Periodic Report. It costs $25 and is due every year during a 5-month window around your LLC’s anniversary month: you can file up to 2 months early, and the deadline is the end of the second month after your anniversary month. A $50 late fee applies if you miss it, and an LLC that stays noncompliant becomes Delinquent – curing that costs $100.
Yes, every Colorado LLC is required to have a registered agent. A registered agent is a person or entity that receives legal notices and official government documents on behalf of your LLC. The agent must have a physical street address in Colorado – not a P.O. box – and be available during regular business hours. You can serve as your own registered agent or use a professional service.
The mistakes that come up most often are missing the 5-month Periodic Report window (there’s no fixed calendar date – it follows your anniversary month), letting the LLC slip into Delinquent status and paying $100 to cure it, using a P.O. box for the registered agent address (not allowed), and not having a written operating agreement. A lot of business owners also forget the Colorado sales tax license once they start selling taxable goods.
Online filings through the Colorado Secretary of State are processed immediately – your LLC is generally approved the same day you file, often within minutes. There’s no paper option to slow things down: Colorado requires LLC filings to be submitted online. If you’re in a hurry, Colorado is one of the fastest states there is.
Thinking about another state? Compare Wyoming, Delaware, Texas and Florida — or browse all 50 state guides.
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