How to Start an LLC in Colorado
Learn how to start an LLC in Colorado: file Articles of Organization with the Secretary of State, pay the $50 state fee, and get your EIN. Bizee handles the paperwork for $0 + state fee.
Bizee Editorial Staff
Editorial Team
Colorado LLC at a glance
Filing fee: $50
Processing time: Typically 1–2 business days for online filings
State agency: Colorado Secretary of State
Annual report due: Annually, within the anniversary month of formation
State tax rate: No state-level LLC franchise tax; standard Colorado income tax rates apply
State overview
Forming an LLC in Colorado means filing Articles of Organization with the Colorado Secretary of State, paying the $50 state fee, and appointing a registered agent with a Colorado address. Most online filings are processed in 1–2 business days. Colorado has no state-level franchise tax on LLCs, which makes it one of the more straightforward states for formation.
Why form an LLC in Colorado
An LLC is the most common business structure for small businesses in Colorado because it combines personal liability protection with flexible tax treatment and fewer formalities than a corporation. Your personal assets stay separate from business debts and legal claims — so if the business runs into trouble, your personal finances aren't fair game.
Colorado also gives small businesses access to state-level funding programs through the Colorado Office of Economic Development and International Trade. Microloans ranging from $5,000 to $50,000 are available to qualifying small businesses that need access to capital. Having a properly formed LLC makes it easier to apply for those programs, open a business bank account, and build business credit.
If an LLC doesn't fit the type of business you're building, forming a Colorado Corporation is the other main option. But for most entrepreneurs starting out, the LLC is the faster path.
How to form a Colorado LLC in 6 steps
You can form a Colorado LLC yourself by filing Articles of Organization through the Colorado Secretary of State's online portal. The process has 6 steps, and most people complete it in under an hour. The state fee is $50 and online filings are typically approved within 1–2 business days.
Step 1: Choose a name for your LLC
Your LLC name must be distinguishable from other registered businesses in Colorado and must include "Limited Liability Company," "LLC," or "L.L.C." You can search existing business names through the Colorado Secretary of State's business database before you file. If you're not ready to file yet, Colorado allows you to reserve a name for 120 days for a small fee.
Step 2: Appoint a registered agent
Colorado requires every LLC to have a registered agent — a person or business with a physical Colorado address who can receive legal documents and official state notices on your behalf. You can serve as your own registered agent, but many business owners use a registered agent service to keep their personal address off public records and make sure nothing gets missed.
Step 3: File Articles of Organization
File your Articles of Organization through the Colorado Secretary of State's online portal at sos.state.co.us. You'll need your LLC name, your registered agent's name and Colorado address, and the name and address of at least 1 organizer. The state filing fee is $50. Online filings are typically processed in 1–2 business days.
Step 4: Create an operating agreement
Colorado doesn't require you to file an operating agreement with the state, but having one is important. It sets out how your LLC is owned and managed, how profits and losses are divided, and how decisions get made. Without one, Colorado's default LLC statutes govern your business — which may not reflect what you actually want. This is one of those documents that's much easier to put in place at the start than to sort out later.
Step 5: Get an Employer Identification Number (EIN)
An Employer Identification Number (EIN) is your LLC's federal tax ID. You need one to open a business bank account, hire employees, and file federal taxes. Apply for an EIN free through the IRS website using Form SS-4 — the IRS issues it immediately when you apply online. Even single-member LLCs with no employees benefit from having an EIN, since it keeps your Social Security number off business documents.
Step 6: Register with the Colorado Department of Revenue
If your LLC has employees or sells taxable goods or services in Colorado, you need to register with the Colorado Department of Revenue for state tax purposes. This covers sales tax, use tax, and withholding tax for employees. If your LLC is a single-member entity with no employees and no taxable sales, you may not need to register right away — but check with a tax professional to be sure.
After you file: EIN and tax registration
Once the Colorado Secretary of State approves your Articles of Organization, your LLC is officially formed. There are a few things to take care of right after to keep your business in good standing.
- Open a business bank account using your EIN and formation documents — keeping business and personal finances separate is one of the most important things you can do to protect your liability protection
- File your annual report with the Colorado Secretary of State each year during your LLC's anniversary month to stay in good standing
- Register for Colorado state taxes with the Department of Revenue if your LLC has employees or sells taxable goods or services
- Talk to a tax professional about whether electing S Corporation status makes sense for your LLC — it can reduce self-employment taxes once your business income reaches a certain level
Colorado has no state-level franchise tax on LLCs, which is a meaningful advantage compared to states like California where LLCs owe a minimum $800 annually regardless of income. That said, Colorado LLCs are still subject to standard state income tax rules, and multi-member LLCs file Form 1065 federally as a partnership by default.
Other Colorado LLC types
Most Colorado LLCs are standard member-managed or manager-managed entities. But depending on your profession, you may need to form a different type.
Professional Limited Liability Company (PLLC)
A Professional Limited Liability Company (PLLC) is for licensed professionals — things like attorneys, physicians, accountants, and engineers. Colorado requires that all members of a PLLC hold the relevant state license for the profession. If you're in a licensed field, check with a legal professional about whether a PLLC is required before filing a standard LLC.
Frequently asked questions
The Colorado state filing fee for an LLC is $50, paid when you file Articles of Organization with the Secretary of State. That's the only required state fee to form the LLC itself. If you use a registered agent service, that's a separate annual cost. There's no state franchise tax in Colorado, so you won't owe a minimum annual fee just for having an LLC.
Online filings through the Colorado Secretary of State's portal are typically processed in 1–2 business days. Colorado doesn't currently offer a separate expedited filing option for standard LLC formation, but the online process is already fast. Paper filings take longer — filing online is the better path for most people.
Yes. Colorado requires every LLC to have a registered agent with a physical Colorado address. The registered agent receives legal documents and official state notices on behalf of your LLC. You can serve as your own registered agent if you have a Colorado address, but many business owners use a registered agent service to keep their personal address off public records.
Yes, in most cases. You need an Employer Identification Number (EIN) to open a business bank account, hire employees, and file federal taxes. Single-member LLCs with no employees can technically use a Social Security number instead, but an EIN keeps your personal number off business documents. Apply free through the IRS website using Form SS-4 — the IRS issues the EIN immediately when you apply online.
Yes. Colorado LLCs must file an annual report with the Secretary of State each year during the anniversary month of their formation. The annual report confirms your LLC's current information — registered agent, principal address, and member or manager details. Missing the deadline can put your LLC out of good standing, so it's worth tracking the due date from the start.
Yes. Colorado doesn't require your LLC to be generating revenue before you form it. Many business owners form an LLC before they've made their first sale — to protect personal assets, open a business bank account, or establish the business structure before launching. You'll still need to file your annual report each year to stay in good standing, even if the LLC has no income.
Mistakes that come up often include choosing a business name that's already taken or doesn't meet Colorado's naming rules, skipping the operating agreement, and mixing personal and business finances after formation. Not keeping business and personal money separate is one of the biggest — if a court decides your LLC isn't really a separate entity, your personal finances are fair game. Getting an EIN and opening a dedicated business bank account right after formation helps avoid that.
It depends on how many members your LLC has and whether you've made any tax elections. A single-member LLC is treated as a disregarded entity by default — income passes through to your personal federal return. A multi-member LLC is taxed as a partnership by default and files Form 1065 federally. Either type can elect S Corporation or C Corporation tax treatment. Colorado has no state franchise tax on LLCs, but standard state income tax rules still apply. A tax professional can help you figure out which structure makes the most sense for your situation.
