Series LLC in Colorado — Not Available (Alternatives Explained)

Colorado does not authorize Series LLCs under its current LLC Act . There is no provision in Colorado law for creating protected series within a single LLC entity. If you need the liability isolation that series LLCs provide, you'll need to use alternative structures within Colorado or form a Series LLC in another state. For formation, see how to form a Colorado LLC. For all types, see our LLC types overview.

What Is a Series LLC?

A Series LLC is a single LLC that can create multiple internal "series." Each series:

• Owns separate assets
• Has separate liabilities (debts of one series don't affect others)
• Can have different members
• Conducts different business activities

The key benefit is liability isolation between business activities without forming multiple separate LLCs (saving formation fees and annual reports).

Why Colorado Doesn't Have It

Only about 20 states have Series LLC statutes (Delaware, Illinois, Iowa, Nevada, Texas, Utah, Wyoming, and others). Colorado's legislature has not adopted Series LLC provisions. The reasons likely include:

• Uncertainty about interstate recognition
• Concerns about creditor protection
• Colorado's existing low-cost structure ($50 formation, $25/year) makes multiple LLCs affordable
• Limited demand relative to the legislative complexity

Alternatives for Colorado Business Owners

Option 1: Multiple Standard LLCs

Form a separate Colorado LLC for each business or property you want to isolate.

At $50/formation and $25/year per entity, Colorado makes multiple LLCs relatively affordable. Five properties in five LLCs costs $125/year in Periodic Reports — far less than other states' franchise taxes or annual fees.

Option 2: Holding Company Structure

Create a parent LLC that owns multiple subsidiary LLCs:

• Parent LLC: Holds ownership interests in child LLCs
• Child LLCs: Each holds one asset or operates one business
• Liability flows only within each child LLC
• Parent provides centralized management

Option 3: Form Series LLC in Another State

You could form a Series LLC in a state that allows them (Delaware, Nevada, Texas, Wyoming) and register it foreign in Colorado. Significant caution:

• Colorado may not recognize the liability isolation between series (no Colorado case law or statute on this)
• You'd register as a foreign LLC ($100 + $25/year in CO) plus home state fees
• If Colorado courts don't recognize series protection, the entire structure fails for Colorado-based assets
• Interstate recognition of series liability protection remains legally uncertain nationwide

Option 4: Insurance + Single LLC

For smaller operations where the cost of multiple LLCs outweighs the risk:

• Form one LLC for all activities
• Carry robust liability insurance (general liability, umbrella policy)
• Accept that all assets within the single LLC share liability exposure
• Insurance handles the risk instead of entity structure

Common Use Cases and Recommendations

FAQ

Can Colorado pass a Series LLC law in the future?

It's possible. Other states continue adopting Series LLC statutes. If Colorado's legislature acts, this page will be updated. As of 2026, there is no pending Colorado legislation for Series LLCs.

Will Colorado courts recognize my out-of-state Series LLC?

Uncertain. No Colorado court has definitively ruled on whether it will respect series liability protection from other states. The risk is real — if a court doesn't recognize the series separation, all series could be treated as one entity for liability purposes.

Is forming multiple LLCs really that much harder?

Not in Colorado. The sos.colorado.gov portal makes it quick to file multiple Articles of Organization. The annual compliance is straightforward — $25 per entity per year for the Periodic Report. Many real estate investors and multi-business owners manage 5-10+ Colorado LLCs without difficulty.

What about annual fees for multiple LLCs?

Five LLCs = 5 x $25 = $125/year in Periodic Reports. That's still less than ONE entity's annual fee in California ($800), Delaware ($300), or Nevada ($350). Colorado's fee structure makes multiple entities practical.