The Texas Series LLC sits in a small club. Only a handful of states authorize the structure, and Texas has been refining its statute since 2009. The pitch is appealing: one master LLC with internal “series” that each hold separate assets and shield them from each other’s liabilities, at lower filing costs than running a dozen separate entities. A Dallas business law attorney working with real estate investors, multi-line operators, or family investment companies fields questions about this structure constantly. The right answer is usually “it depends,” and the reasons matter more than the elevator pitch suggests.
How the Texas Series LLC Actually Works
A single Texas LLC files a certificate of formation, then uses its company agreement to designate one or more “series.” Each series can hold its own assets, have its own members and managers, pursue its own business purpose, and incur its own debts. The structure lives entirely inside one entity at the Secretary of State level.
The asset protection mechanism is statutory. Under Section 101.602 of the Business Organizations Code, the debts of a particular series are enforceable only against the assets of that series, not against the parent LLC or any other series, provided three requirements are met:
- Records account for each series’s assets separately
- The company agreement contains a statement of the limitation on liabilities
- The certificate of formation gives notice of the limitation
Miss any one of the three and the internal shield can collapse, along with the protection that was the whole reason for the structure.
Ordinary, Protected, and Registered Series
Texas added two new categories of series in Senate Bill 1523 (effective June 1, 2022), and refined the rules in SB 1514 (effective September 1, 2023).
An ordinary series is what most Texas Series LLCs have used since 2009: a series created under the company agreement without a separate public filing.
A protected series is one created on or after June 1, 2022, that satisfies the statutory requirements for asset segregation. The protections of ordinary and protected series are substantively similar for most purposes.
A registered series is filed with the Secretary of State, with its own certificate and public record, following the Delaware model. The public-facing identity matters to title companies, banks, lenders, and counterparties who want proof that they are dealing with an entity that exists in the public record.
Registered series cost more (a separate SOS filing fee per series) but produce cleaner documentation. Ordinary and protected series are cheaper and quieter but create friction when a counterparty demands proof of existence.
Where the Asset Protection Actually Holds Up
The internal shield works well in Texas litigation, between Texas series, on Texas-situated assets. Complications start when any of those three change.
Out-of-state assets. A Texas Series LLC holding California real estate may not get the internal shield recognized by a California court. California, Florida, and several other states have not adopted Series LLC statutes and may treat all assets of the parent LLC as available to satisfy a judgment. For a Texas-only portfolio, this is a non-issue. For a multi-state portfolio, it can defeat the structure.
Bankruptcy. The federal Bankruptcy Code does not address Series LLCs directly. Courts have wrestled with whether one series, the whole LLC, or each series separately can or must file, and outcomes are not predictable.
Federal tax. The IRS issued proposed regulations in 2010 (under IRC § 7701) treating each series as a separate entity for federal tax purposes. They have never been finalized, but most practitioners treat them as substantial authority. Each series typically files separately or is treated as a separate disregarded entity, and banking and accounting must follow the chosen treatment consistently.
Pierced veils. The shield depends on the records. A Series LLC where one bank account holds money from three series, where contracts identify only the master LLC, and where titles are inconsistent will get treated like a regular LLC in litigation. The structure is only as strong as the discipline behind it.
When the Structure Makes Sense
The clear cases:
- A real estate investor with multiple Texas properties wanting to isolate the liability of each
- A family investment company holding several distinct investments under one umbrella
- A holding company with multiple Texas-based operating subsidiaries sharing common ownership
- An operator looking to consolidate Public Information Report filings and franchise tax compliance into one entity
For these uses, the savings on formation and annual maintenance are meaningful: one franchise tax account, one annual SOS filing, one company agreement to maintain.
When It Doesn’t
Equally clear, the cases where a Series LLC is the wrong tool:
- Operations or assets located in states that do not recognize Series LLCs
- Plans to bring in different investors per business line (workable but document-heavy)
- Highly regulated industries where separate entities are administratively required
- Single-property or single-line operations that do not need internal segregation
- Situations where a future sale or financing of one line is likely, since carving a series out adds complexity that buyers and lenders sometimes resist
A traditional structure (one parent and several wholly-owned subsidiary LLCs) avoids most of these concerns. It costs more in filing and maintenance but produces a cleaner record and travels better across jurisdictions.
Implementation Matters More Than the Statute
A Series LLC succeeds or fails on execution. The certificate of formation needs statutory notice. The company agreement needs detailed series provisions and consistent terminology. Each series needs its own bank account, books, insurance where appropriate, and contracts that name the specific series as the party, not the master LLC.
For background, Subchapter M of Chapter 101 of the Texas Business Organizations Code is published at statutes.capitol.texas.gov, and the Texas Secretary of State publishes filing instructions for certificates of registered series at sos.state.tx.us. Before forming a Series LLC, converting an existing LLC, or adding a registered series, a working session with a Dallas business law attorney is the difference between a structure that holds up under pressure and one that hands plaintiffs a roadmap.
The Series LLC is a useful tool in the right hands. It is not a default answer for every multi-asset business, and the cost of using it badly can exceed the cost of running separate entities.