Series LLC for Non-Resident Owners: DE, NV, TX, WY, IL Matrix (2026)

Editorial scope. This article compares state Series LLC statutes, formation cost, and operational facts that any non-resident founder should know before choosing among Delaware, Nevada, Texas, Wyoming, and Illinois. Series LLC structuring is different from standard single-entity LLC structuring, and the IRS classification rule is still proposed and not final. Specific creditor scenarios, tax elections, and any structure involving California or New York operations should be reviewed by a licensed attorney and a cross-border CPA. Auteur handles formation, Registered Agent, US business address, and EIN setup. We are not a law firm and this post is not legal advice.

Most non-resident founders learn about Series LLCs from a single-state blog post that assumes a US-resident owner. The cell-veil claim sounds clean, the formation cost looks small, and the marketing copy implies that one filing creates unlimited liability silos. The reality for a non-resident founder is more complicated. The IRS treatment is still a proposed regulation. Five states have meaningfully different statutes. Foreign qualification breaks the cell veil in California and New York. And the CRA classification mismatch hits each series the same way it hits a standard LLC. This is the five-state side-by-side for a foreign founder deciding whether a Series LLC is actually the right vehicle.

30-second answer

A Series LLC lets one master LLC create internal "cells" or "series" that each hold separate assets, debts, and members with statutory liability separation among them. For a non-resident owner running two or more separate operations or holding two or more rental properties, Wyoming is the default Series jurisdiction (low cost, strongest single-member case law, Registered Series option). Delaware wins for credibility, Chancery Court access, and investor-facing structures. Texas fits when properties or operations are in Texas. Illinois is the only state that requires per-series filing and fees and is the most administratively expensive. Nevada adds a $500 Commerce Tax registration on the master. California and New York do not recognize Series LLCs, so any cell that transacts business there loses statutory cell-veil protection. IRS classification is still a proposed rule, so conservative Form 5472 practice files one return per series with foreign ownership.

The 6-axis Series LLC matrix

The marketing copy compresses Series LLC into "one filing, unlimited silos." The actual decision splits across six axes that vary materially by state.

Three of the six axes (per-series fee, public privacy, Texas Franchise Tax single-entity treatment) are where the states diverge meaningfully. The rest converge toward "Wyoming is the cheapest default and Delaware is the most credible."

Axis 1: Master vs Protected vs Registered Series (the core mechanism)

Series LLCs do not work the same way in every state. The mechanism splits into three structural concepts.

Master LLC. The parent entity filed with the Secretary of State. Holds the operating agreement. Acts as the umbrella for all internal series. Has its own EIN and files its own taxes (federal default plus state where applicable).

Protected Series. An internal series created by the operating agreement alone. No separate filing with the Secretary of State. Statutory liability separation depends on three conditions: the operating agreement explicitly creates the series, the certificate of formation gives public notice of series capability, and separate records are maintained for each series. Available in Delaware, Nevada, Texas, and Wyoming.

Registered Series. A series that files a separate certificate with the Secretary of State and gets its own state-level identity. Stronger external credibility (banks, courts, and counterparties can verify the series exists on the public record) but adds per-series filing cost. Available in Delaware (§18-218) and Wyoming (§17-29-212). Illinois requires this style for every series (Certificate of Designation), which is why Illinois costs are higher.

For a non-resident founder, the Protected Series in Wyoming or Delaware is the lowest-cost path. The Registered Series upgrade in those same states is useful when an external party (a bank, a lender, a real estate title company) demands a public record of the series identity. Illinois's mandatory per-series filing is the reason Illinois rarely makes sense unless the assets or operations are physically located there.

Axis 2: Foreign qualification trap (the cell veil breaks at the state line)

This is the single most-skipped fact in Series LLC marketing copy. State statutes that recognize Series LLCs only protect the cell veil within their own state. When a series transacts business in another state, two questions appear in sequence.

1. Does the new state recognize the Series LLC structure at all? Most do, but California and New York are the major exceptions. California's Franchise Tax Board treats each series as a separate LLC for franchise tax purposes (each cell potentially owes $800 minimum), while California courts have not adopted the cell-veil concept. New York treats series similarly and does not extend cell-veil protection in litigation against the parent.

2. Does the master LLC alone foreign-qualify, or does each individual series foreign-qualify separately? State practice varies. Texas, Wyoming, and Delaware courts generally accept foreign qualification by the master LLC for purposes of being authorized to transact business. But when a series owes a state-level obligation (a sales tax registration, a workers' compensation policy, a foreign-qualification fee for a series that is operationally distinct), most states require the individual series to register or pay separately.

The practical rule for a non-resident founder: form Series LLC for assets or operations confined to states that recognize the structure. Do not rely on cell-veil protection in California or New York. If any series will own real estate or operate in CA or NY, treat that series as if it were a standard LLC for foreign qualification and tax purposes and confirm with state counsel before formation.

For deeper coverage of when a non-resident LLC must foreign-qualify, see foreign qualification across multiple states for non-resident LLC owners.

Axis 3: IRS classification (still proposed, conservative path)

The IRS published Proposed Reg §301.7701-1(a)(5) on September 14, 2010. The proposal would treat each series of a Series LLC as a separate entity for federal tax purposes. As of 2026-05-11, the regulation has not been finalized. The IRS has not issued binding guidance on whether a single Form 5472 covers all series or whether each series files separately.

Conservative practice for a foreign-owned Series LLC follows three principles:

• One EIN per series with foreign ownership. Each series with a non-US owner applies for its own EIN via Form SS-4. This creates a clean audit trail for the per-series Form 5472 path. Series with no separate income-producing activity may share the master EIN, but most CPAs do not recommend this for foreign-owned series.
• One Form 5472 + Form 1120 (pro forma) per series with foreign ownership. Each foreign-owned series files its own pair. The penalty for failure to file Form 5472 is $25,000 per series per year. Conservative filing avoids per-series exposure.
• One Operating Agreement that establishes the series internally, plus one Series Schedule per series. The Operating Agreement covers the master. Each series gets a Series Schedule that names members, capital contributions, assets, and management for that series. This is what state courts and IRS audit teams ask to see when verifying cell separation.

For Canadian residents, the CRA classification mismatch hits each series the same way it hits a standard LLC: the IRS treats the series as a disregarded entity or partnership, but the CRA treats it as a corporation under Canadian tax rules. This creates trapped foreign tax credit exposure on every series with Canadian-resident ownership. The structural fixes (Form 8832 C-Corp election, intermediate Canadian holding company, ULC) apply per series, not once for the master.

See LLC-CRA-IRS classification mismatch for Canadian residents and Form 5472 for Canadian LLC owners for the underlying mechanics.

Axis 4: 5-year cost comparison (master + 3 active series)

The state cost gap for a Series LLC widens fast when series count grows. Below is the 5-year cost projection for a non-resident structure with one master LLC and three active series, using each state's Secretary of State fees snapshot 2026-05-11.

Texas and Wyoming are the two clear cost winners for a non-resident Series LLC. Texas wins when assets or operations are physically in Texas (no Franchise Tax owed below $2.65M revenue but Public Information Report required annually). Wyoming wins when the assets or operations are out of state and the founder wants to minimize annual maintenance. Nevada is the most expensive option for non-resident founders, and Illinois only makes sense when the underlying assets are already in Illinois.

For the standard single-entity comparison (not Series), see Delaware vs Wyoming vs New Mexico for Canadian LLC owners and the Texas-only context in Texas vs New Mexico LLC for non-resident SaaS founder.

Axis 5: Privacy mechanics by state and series filing style

Wyoming Protected Series and Delaware Protected Series are the highest-privacy paths. Illinois mandates public disclosure of each series, which makes it the lowest-privacy option among the five. Texas exposes member or manager identity at the master level but not at the series level.

The BOI rule status is in flux. The FinCEN 2025-03 interim rule exempts US-formed entities with US-person beneficial owners from BOI reporting. Foreign-owned series LLCs may still owe BOI reporting depending on the final rule, which had not been issued as of 2026-05-11. Verify BOI status before filing and check the BOI reporting guide for the current decision tree.

The non-resident decision tree (which state for which use case)

The five states converge on a small set of patterns once the non-resident lens is applied.

Use case                                  → Default state

Multiple rental properties out-of-state   → Wyoming Protected Series
                                            (cheapest, strongest case law,
                                             foreign qualify each property's series
                                             in the state where the property sits)

Investor-facing structure, future VC      → Delaware Registered Series
                                            (Chancery Court access, credibility,
                                             $90 per registered series)

Assets or operations in Texas              → Texas Protected Series
                                            (single Franchise Tax taxable entity,
                                             No Tax Due under $2.65M)

Assets or operations in Illinois           → Illinois (only realistic option)
                                            (mandatory per-series filing, but the
                                             cell veil is recognized in-state)

Anything else                              → Wyoming Protected Series
                                            (default for non-resident multi-asset
                                             structure with no specific state nexus)

CA or NY operations involved              → Series LLC is not the right vehicle
                                            (cell veil not recognized; use
                                             separate standard LLCs)

The "anything else" path is the most common outcome for a non-resident founder with multiple unrelated digital businesses, drop-shipping operations, or out-of-state real estate.

Axis 6: Operational rituals for cell-veil maintenance

The statute provides separation only if separate records are actually maintained. The four operational requirements apply in every state and are the most common reason that a court pierces a Series LLC cell veil in litigation.

The bank-account-per-series requirement is the largest practical cost for non-resident founders. Some banks (Mercury, Relay) approve multiple business accounts under one EIN for sub-accounts, but for cell-veil purposes a separate EIN per series is the safer path. This pushes the EIN application timeline (typically Form SS-4 by fax for non-residents, 5-15 business days per series). For the EIN mechanics, see EIN by fax for Canadian residents.

For the Operating Agreement structure that supports cell separation in a multi-member context, see Multi-Member LLC Operating Agreement for non-resident LLC and the single-member case in Single-Member LLC Operating Agreement for Canadian residents.

Cross-border tax treatment (CRA mismatch hits per series)

For a Canadian-resident owner, the CRA classification mismatch treats each series as a corporation under Canadian tax rules, even though the IRS treats single-member series as disregarded entities. The mismatch creates trapped foreign tax credit exposure on each series. Structural solutions, such as the Form 8832 C-Corp election, an intermediate Canadian holding company, or a Nova Scotia or Alberta Unlimited Liability Company (ULC), apply per series rather than once for the master.

T1135 reporting applies if the aggregate value of specified foreign property exceeds CAD $100,000 at any point in the year. Series LLC interests count as specified foreign property. Multiple series can quickly cross the threshold even when each individual series is below it. Aggregate the master plus all series values when assessing T1135 obligations.

T1134 reporting applies for foreign affiliates. A Canadian-resident owner of a Series LLC with foreign affiliates inside one or more series files T1134 per affiliate, not per series.

Treaty Article XXIX-A (Limitation on Benefits) applies to each series when treaty benefits flow through US entities to non-resident owners. The state of formation does not change this analysis.

The structural choice between Wyoming and Delaware does not reduce Canadian income tax exposure. Series LLC is a US-side liability and operational tool, not a Canadian tax mitigation tool.

Missing angle: what the top SERP posts skip

Most "Series LLC for non-residents" search results are written for US residents and stop at three points. The fourth, fifth, and sixth points are where a foreign founder actually loses money or protection.

1. Cell veil does not cross state lines for non-recognizing states. California and New York do not honor the Series LLC structure. Any series that operates or owns property in those states loses cell-veil protection in those forums.
2. Each series with foreign ownership probably needs its own EIN and its own Form 5472 + Form 1120. The IRS Proposed Reg §301.7701-1(a)(5) (2010) is still proposed, not final. Conservative practice files per-series. The $25,000 penalty per Form 5472 failure stacks per series.
3. Series LLC plus banking is harder, not easier. Most non-resident-friendly banks (Mercury, Relay) accept Series LLCs but expect separate bank accounts per series for cell separation. Each separate account application repeats the full KYC cycle (EIN, Operating Agreement, member ID, business address proof). The total onboarding effort is N times larger than a single LLC.
4. Foreign qualification fees stack per series for out-of-state operations. If three series each operate in three different states, the founder pays foreign qualification fees and Registered Agent fees for each combination, not once for the master. A Series LLC is not a cost saver for multi-state operations.
5. CRA classification mismatch hits each series. For a Canadian-resident owner, the CRA treats each series as a corporation. The trapped FTC problem multiplies per series. The Form 8832 election, if used, must be filed per series.

When NOT to use a Series LLC (the honest take)

A Series LLC is the wrong vehicle for at least five common non-resident scenarios.

• Single operating business with multiple revenue streams. One LLC with internal accounting separation is simpler and cheaper. The cell veil adds litigation defense but not tax benefit.
• Properties or operations in California or New York. Cell-veil protection is not recognized in those states. Use separate standard LLCs instead.
• Founder unwilling to maintain four operational rituals per series. Without separate books, separate accounts, separate contracts, and separate tax filings, the cell veil collapses in litigation.
• Multi-member entities with active investor capital. Investors generally prefer separate single-entity LLCs over series sub-units, because series interests are less liquid and less standard for capital tables.
• First-year founders. The complexity stack (per-series EIN, per-series Operating Agreement schedule, per-series banking, per-series Form 5472) often exceeds the founder's bandwidth in the first 12 months. Single LLC first, then convert or restructure to Series later, is the common operational sequence.

Frequently asked questions

Is a Series LLC recognized by the IRS as one entity or multiple entities?

The IRS published a Proposed Regulation (§301.7701-1(a)(5)) in September 2010 that would treat each series as a separate entity for federal tax purposes. As of 2026-05-11, the regulation is not finalized. Until the rule is final, conservative practice files Form 5472 plus Form 1120 (pro forma) per series with foreign ownership to avoid per-series $25,000 penalty exposure. Consult a cross-border CPA before deciding which path to take for your structure.

Do I need a separate EIN for each series in my Series LLC?

For a foreign-owned Series LLC, most cross-border CPAs recommend a separate EIN per series. Each EIN supports a separate bank account, a separate Form 5472 filing, and clean audit trails for cell-veil defense. The EIN application uses Form SS-4 by fax for non-residents and typically takes 5 to 15 business days per series. For series with no income-producing activity, the master EIN may suffice, but mixing this approach across foreign-owned series creates audit risk.

Can my Wyoming Series LLC operate in California without losing protection?

A Wyoming series operating in California can foreign-qualify to do business there, but California does not recognize the statutory cell-veil among series. A California court adjudicating a dispute against one series may reach assets in other series owned by the same Wyoming master LLC. California also treats each operating series as a separate LLC for franchise tax, owing the $800 minimum per series. For California operations, use separate standard LLCs instead of a Series LLC.

Is a Series LLC better than forming multiple standard LLCs?

For pure cost over the master plus three or more series, a Wyoming or Texas Protected Series can be cheaper than three separate Wyoming or Texas LLCs. The cost savings shrink to zero once you add per-series banking, per-series EIN, per-series foreign qualification, and per-series Form 5472. For most non-resident founders with two operations, two separate standard LLCs are simpler. For four or more operationally separate units in states that recognize the structure, a Series LLC starts to make sense.

Does the BOI reporting rule apply to each series separately?

The FinCEN 2025-03 interim rule exempts US-formed entities with US-person beneficial owners from BOI reporting. Foreign-owned series may still owe BOI reporting per series, depending on the final rule that had not been issued as of 2026-05-11. Treat each series as a separate reporting entity for BOI planning, and confirm the current status with FinCEN guidance before filing. See the BOI reporting guide for the latest decision tree.

Does forming a Series LLC reduce my Canadian or home-country tax?

No. The CRA classifies each series the same way it classifies a standard LLC, namely as a corporation under Canadian tax rules even though the IRS treats single-member series as disregarded entities. The trapped foreign tax credit problem applies per series. Structural fixes (Form 8832 C-Corp election, Canadian holding company, ULC) apply per series and require coordinated US and Canadian tax planning.

Bottom line

Series LLC is a US-side liability and operational tool, not a tax mitigation tool. For non-resident founders, Wyoming Protected Series is the default when the assets and operations are out of California and New York. Delaware Registered Series is the default for investor-facing structures. Texas Protected Series is the right answer when the underlying assets are in Texas. Illinois only fits when the assets are physically in Illinois. Nevada is the most expensive option and rarely the right answer for non-residents. California and New York operations do not belong in a Series LLC at all.

The IRS treatment is still a proposed rule, so file Form 5472 conservatively per series with foreign ownership. The CRA classification mismatch hits every series the same way it hits a standard LLC. Cell-veil maintenance requires four operational rituals per series, and skipping any one of them collapses the cell separation in court.

If you want help deciding whether a Series LLC fits your structure, or you have already started one and need to confirm the per-series EIN, banking, and Form 5472 path, book a free consultation. We handle formation, Registered Agent, EIN without an SSN, and US business bank account setup. Specific creditor scenarios, California or New York operations, and final IRS-rule strategy belong with a licensed US attorney and a cross-border CPA.

Related guides

• Delaware vs Wyoming vs New Mexico for Canadian LLC owners
• Wyoming vs South Dakota LLC asset protection for non-residents
• Texas vs New Mexico LLC for non-resident SaaS founder
• Foreign qualification across multiple states for non-resident LLC owners
• Multi-Member LLC Operating Agreement for non-resident LLC
• Single-Member LLC Operating Agreement for Canadian residents
• Form 5472 for Canadian LLC owners
• LLC-CRA-IRS classification mismatch for Canadian residents
• BOI reporting decision tree
• State comparison guide