Is an LLC Owned by Another LLC a Disregarded Entity?

An LLC owned by another LLC is a disregarded entity only when the ownership chain, once every disregarded LLC in it is ignored, leads to a single recognized taxpayer. The IRS looks through disregarded parents until it reaches someone it recognizes — an individual, a partnership, or a corporation — and then counts. One owner at the top means the subsidiary is disregarded. Two or more means it defaults to a partnership and has to file its own Form 1065.

Why the IRS Counts Owners, Not Entities

An LLC’s federal tax classification depends on one thing: how many owners it has. Under the check-the-box regulations, a domestic LLC with one owner is automatically disregarded as separate from that owner, and a domestic LLC with two or more owners is automatically a partnership.¹ No election is required for either default.

Disregarded means the IRS pretends the entity doesn’t exist for income tax. The LLC files no federal income tax return of its own. Its income, deductions, and credits land directly on the owner’s return — Schedule C, E, or F if the owner is an individual.² A partnership-classified LLC files Form 1065 and issues Schedule K-1s; the entity itself pays no income tax.³

All of that is straightforward when an individual owns the LLC directly. It gets more interesting when the owner is itself an LLC, because now the IRS has to decide whether the parent LLC counts as an owner or not.

The Look-Through Rule

If the parent LLC is itself disregarded, the IRS ignores it. It keeps climbing the ownership chain until it hits a recognized taxpayer — an individual, a partnership that files Form 1065, a corporation, or a grantor whose revocable trust holds the interest. Then it counts the recognized taxpayers standing behind the subsidiary. That count decides the subsidiary’s classification.

One Individual Behind Everything

Individual A owns 100% of LLC A. LLC A owns 100% of LLC B. LLC A is a single-member LLC and disregarded, so the IRS treats Individual A as the direct owner of LLC B. LLC B has one recognized owner and is also disregarded. Both LLCs are invisible for income tax, and everything reports on Individual A’s Form 1040.⁴

Stacking doesn’t change the analysis. If LLC B owned LLC C, and Individual A was still alone at the top, LLC C would be disregarded too. Layers of LLCs don’t matter. Owners do.

A Partnership or Corporation Above

Partnership P — a multi-member LLC taxed as a partnership — owns 100% of LLC B. Partnership P is a recognized taxpayer; it files its own Form 1065. The IRS does not look through it. LLC B has one recognized owner and is disregarded. Its numbers flow up to Partnership P, which reports them on the partnership return and distributes K-1s to its partners.²

The same logic applies when the parent has elected corporate treatment. A C-corp-elected LLC that owns 100% of another LLC makes that subsidiary disregarded, and the subsidiary’s activity appears on the parent’s Form 1120 as if it were an internal division.⁴

Two Individuals Behind Two Single-Member LLCs

This is the case that catches people out. LLC B is owned 50/50 by LLC A and LLC C. LLC A is a single-member LLC owned by Individual X. LLC C is a single-member LLC owned by Individual Y. Both LLC A and LLC C are disregarded, so the IRS looks through both of them. Individual X and Individual Y are treated as the direct 50/50 owners of LLC B. Two recognized owners means LLC B is a partnership by default, and it must file Form 1065 and issue K-1s to Individuals X and Y.³

The mistake is intuitive: LLC B has two members, each of which is itself a single-member LLC, so it looks like LLC B has one owner sitting behind each half. It doesn’t. The IRS reads through the disregarded shells and counts the people. Two people, partnership.

The Rule, Restated

Count recognized taxpayers behind the subsidiary — not the legal entities holding the membership interests. One recognized taxpayer, disregarded. Two or more, partnership. A recognized taxpayer is anyone the IRS doesn’t itself look through: an individual, a partnership filing Form 1065, a corporation (including an LLC that has elected corporate treatment), or the grantor of a revocable trust holding the interest.

Disregarded for Income Tax Isn’t Disregarded for Everything

“Disregarded” is a federal income tax label. It doesn’t reach several other areas the searcher will run into, and treating it as a blanket rule is where owners lose money.

Employment Taxes

Since 2009, a disregarded LLC with employees reports and pays employment taxes under its own name and its own EIN — not the owner’s.² For payroll purposes the LLC is a separate entity, full stop.

Excise Taxes

The same separate-entity treatment applies to federal excise taxes. A disregarded LLC that owes excise tax files its own Forms 720 and 2290 under its own name and EIN.²

Foreign Ownership

If a foreign person or entity ends up as the recognized owner at the top of the chain, the domestic single-member LLC is still disregarded for income tax, but it becomes a reporting corporation. It must file Form 5472 with a pro forma Form 1120 marked “Foreign-owned U.S. DE” across the top.⁵ The penalty for failing to file is $25,000 per form, per year. Foreign owners who read “disregarded” as “nothing to file” find out otherwise expensively.

State Law Liability

Disregarded status has no effect on the LLC’s status as a separate legal entity under state law. The liability shield between the business and the owner’s personal assets stays intact.⁴ That’s most of the reason people stack LLCs to begin with. A parent that holds several disregarded subsidiaries can isolate each business’s liabilities from the others even though the tax return shows a single owner reporting everything.

What Happens If You Classified It Wrong

An LLC that should be filing as a partnership because the look-through reveals two or more owners, but doesn’t, racks up a failure-to-file penalty of $255 per partner per month for up to 12 months.⁶ The clock starts on the first day the Form 1065 is late, and it keeps ticking until the return is filed or the cap is reached.

The most common version of this error is the one described above: two individuals, each holding their interest through a single-member LLC, co-own a third LLC and assume it’s disregarded. It isn’t, no return gets filed, and the penalty accrues quietly until someone notices.

Membership changes cause automatic reclassification too. A two-member LLC that drops to one member becomes disregarded without any filing. A single-member LLC that adds a second member becomes a partnership.¹ The reporting obligation shifts immediately. Missing the transition produces the same penalty problem.

Choosing a Different Classification

Defaults are just defaults. Any LLC — the subsidiary, the parent, or both — can elect corporate treatment by filing Form 8832, which produces C-corporation treatment.⁷ S-corporation status is elected on Form 2553, and an eligible LLC filing 2553 does not need to file 8832 separately.⁸

An election higher in the chain changes what happens below it. Once an upper-tier LLC is taxed as a corporation, it is a recognized taxpayer, and a wholly owned subsidiary beneath it is disregarded into the corporation’s return. That’s a common reason to make the election in a tiered structure: to consolidate reporting into one Form 1120 rather than run partnership returns.

1
eCFR. 26 CFR 301.7701-3 – Classification of Certain Business Entities
2
Internal Revenue Service. Single Member Limited Liability Companies
3
Internal Revenue Service. About Form 1065, U.S. Return of Partnership Income
4
Internal Revenue Service. Limited Liability Company – Possible Repercussions
5
Internal Revenue Service. Instructions for Form 5472
6
Internal Revenue Service. Failure to File Penalty
7
Internal Revenue Service. Form 8832, Entity Classification Election
8
Internal Revenue Service. Instructions for Form 2553