Foreign LLC Registration in Colorado — Authority to Do Business

If your LLC was formed in another state but you want to operate in Colorado, you must register as a foreign LLC with the Colorado Secretary of State. This doesn't create a new LLC — it authorizes your existing entity to transact business in Colorado. The filing is a Statement of Foreign Entity Authority and costs $100. For forming a new Colorado LLC instead, see how to form a Colorado LLC. For all types, see our LLC types overview.

When Foreign Registration Is Required

You must register your out-of-state LLC as a foreign LLC in Colorado if you:

• Have a physical office, warehouse, or store in Colorado
• Have employees working in Colorado
• Own or lease real property in Colorado
• Have ongoing contractual obligations performed in Colorado
• Maintain a bank account in Colorado used for business operations
• Regularly solicit business from Colorado customers (beyond isolated transactions)

When Registration Is NOT Required

Under the Colorado LLC Act, certain activities do NOT constitute "transacting business" in Colorado:

• Maintaining bank accounts
• Securing or collecting debts
• Conducting isolated transactions (not recurring)
• Owning passive investments
• Litigation or administrative proceedings
• Holding meetings of members or managers

How to Register

File a Statement of Foreign Entity Authority through sos.colorado.gov:

1. Log into the Colorado Secretary of State Business Center
2. Select "File a Document" then "Statement of Foreign Entity Authority — LLC"
3. Provide:

• LLC name (as registered in home state)
• Jurisdiction of formation (home state)
• Date of formation in home state
• Principal office address
• Colorado registered agent name and address

4. Attach a Certificate of Good Standing from your home state (usually dated within 30-90 days)
5. Pay $100 filing fee

Processing: 5-10 business days

Ongoing Requirements After Registration

Once registered as a foreign LLC in Colorado:

• Periodic Report: $25 annually (same as domestic LLCs) — due in the anniversary month of your Colorado registration
• Registered agent: Must maintain a Colorado registered agent continuously
• Income tax: Owe Colorado income tax (4.4%) on Colorado-source income
• Sales tax: Must collect if selling taxable goods/services in Colorado
• Compliance: Subject to Colorado's business laws for activities within the state

Penalties for Operating Without Registration

If you transact business in Colorado without registering:

• You cannot maintain a lawsuit in Colorado courts until you register
• You may be subject to penalties and back fees
• Your contracts are still enforceable (registration doesn't void contracts)
• You may face court orders requiring registration

Cost Comparison: Foreign Registration vs New Colorado LLC

If you're debating between foreign registration and forming a new Colorado LLC, see our domestic vs foreign guide.

FAQ

Does my home state LLC name need to be available in Colorado?

If your exact name is already registered in Colorado, you can register under an assumed name (alternate name) for Colorado purposes. Your legal name in your home state doesn't change.

Do I need a registered agent in both states?

Yes. You maintain your registered agent in your home state AND designate one in Colorado. Professional agent services (like ours) can provide a Colorado agent at $99/year.

Will I pay taxes in both states?

Potentially yes. You'll pay your home state's taxes on income earned there, and Colorado's 4.4% on Colorado-source income. Most states provide a credit for taxes paid to other states to avoid full double taxation.

Can I withdraw my foreign registration later?

Yes. If you stop doing business in Colorado, file a Statement of Withdrawal with the Colorado SOS. This terminates your authority to transact business in Colorado and ends your Periodic Report obligation.