Texas Series LLCs and the IRS: Classification, Returns, and Collection Risk

A Texas series LLC lets one company create separate series, each with its own assets, members, and liabilities. Investors use them to hold rental houses one per series, so a lawsuit over one property does not reach the others. Texas has allowed series LLCs for years, under Texas Business Organizations Code sections 101.601 through 101.622.

State law answers the liability question, at least within Texas. Federal tax law has not fully answered the classification question. That gap causes three kinds of IRS problems: wrong returns, payroll mistakes, and collection fights over which series owns what.

What the IRS has said: the 2010 proposed regulations

In 2010, Treasury proposed regulations, at Prop. Treas. Reg. 301.7701-1(a)(5), that would treat each series of a domestic series LLC as a separate entity for federal tax purposes. Each series would then be classified on its own under the check-the-box rules. A series with one owner would generally be disregarded. A series with two or more owners would generally be a partnership. Any series could elect to be taxed as a corporation.

Those regulations were never finalized. Proposed regulations are not binding law, but they tell you how the IRS is likely to view the structure, and many practitioners follow them as the most defensible approach. The practical point: treat each series as its own taxpayer for federal purposes unless you have a well-supported reason not to.

Returns and EINs

Under the proposed approach, a single-owner series is disregarded and its income goes on the owner's return, such as Schedule E for a rental. If the owner is the master LLC and the master LLC is itself a partnership, the income flows through the master's Form 1065.

A series with multiple owners is a partnership and needs its own Form 1065. If ten series each have two owners, that can mean ten partnership returns. Failing to file them exposes each series to the late-filing penalty under IRC 6698, which is assessed per partner, per month. That multiplies fast.

Each series that is a separate taxpayer, or that has employees, generally needs its own EIN. Using one EIN for the master and all series makes it hard to prove which series earned what, and it invites IRS notices that do not match your structure.

Payroll and employment taxes

Here is where series LLCs bite. Under Treas. Reg. 301.7701-2(c)(2)(iv), even a disregarded entity is treated as a corporation for employment tax purposes. If a series has employees, the series is the employer, files Forms 941 and 940, and owes the payroll taxes.

Many series LLC owners run payroll through the master LLC for convenience. That can work if the master is truly the employer and the series reimburse it properly, but it has to be deliberate and documented. If payroll taxes go unpaid, the IRS will look for responsible persons, and the trust fund recovery penalty does not care which series was supposed to pay.

IRS collection and the series wall

If you owe personal tax, the federal tax lien attaches to your interest in the master LLC and in each series you own. As with any LLC, Texas charging order rules do not bind the IRS. My guide on Texas LLC charging orders and the IRS explains why.

If one series owes tax, the harder question is whether the IRS can reach the assets of another series. Texas law provides for internal liability shields between series when statutory requirements are met, including separate records and accounting. But federal tax collection has seen little litigation on series LLCs. Expect the IRS to scrutinize whether the series actually kept separate books, separate accounts, and separate assets. Where they did not, nominee or alter ego theories become available, as described in my guide on nominee and alter ego liens.

Expect the same scrutiny in an offer in compromise or installment agreement. The IRS will ask which series you own, what each holds, and what each is worth. A collection information statement that lists the master LLC as one asset when it actually holds eight rental houses in eight series will not survive review. List each series, its property, its debt, and its income. Accuracy here protects you; vague answers invite the nominee and alter ego questions you are trying to avoid.

Outside Texas, some states do not recognize series liability shields. A series LLC with property in another state may face uncertainty there too. That is a question for counsel licensed in that state.

The recordkeeping that makes it work

• A separate bank account for each series. Not sub-ledgers in one account. Separate accounts.
• Separate books and records for each series, as Texas law requires for the internal shield.
• Leases, insurance, and contracts signed in the name of the specific series.
• An EIN for each series that files its own return or has employees.
• Consistent federal reporting year after year, with a written explanation of how each series is classified.
• Payroll run by the entity that is actually the employer.

When something has already gone wrong

The most common series LLC problems I see are missing partnership returns for multi-owner series, payroll reported under the wrong EIN, and personal tax debt where the owner hoped the series structure would wall off assets.

Another frequent problem is the master LLC's own return. If the master is owned by more than one person, it may be a partnership that must file Form 1065 even when every series below it is separately reported. Owners sometimes file for the series and forget the master, or the reverse. Map the whole structure on one page, with each entity's owners and federal classification, before deciding what is missing.

Missing returns can usually be fixed by filing them and requesting penalty relief where reasonable cause exists. My penalty abatement guide explains the standard. Payroll mismatches require reconciling Forms 941 and W-2s across entities. Personal tax debt requires a real resolution plan, not a structure.

A series LLC is a filing cabinet. The IRS only respects the drawers if you keep things in them. If yours has turned into one big drawer and the IRS is asking questions, let's talk: 813-229-7100.