An LLC with two or more owners is not automatically a partnership in the way a company is automatically a corporation. It becomes one because a specific IRS rule says so, unless the owners file a form to pick something else.
This matters because most founders never see the rule. They form the LLC, add a co-founder, and assume the tax treatment follows from the word "LLC" itself. It does not. The word "LLC" is a state-law label. The tax treatment is a separate federal question, decided by how many members you have and what, if anything, you filed with the IRS.
Get the default wrong and you find out at tax time, when the LLC owes a return you did not know it had to file, or when a member you added last year turns out to have quietly changed how the whole company is taxed.
What the default rule actually requires
Start with the state law. Delaware defines an LLC in 6 Del. C. §18-101(8) as an entity formed under its LLC Act, with one or more members. State law does not care whether you have one owner or ten. It treats the LLC the same way either way.
Federal tax law does care, and it does not look at the LLC. It looks at the members.
26 CFR §301.7701-3(b)(1) sets the default for an eligible domestic entity, which is the technical term for an LLC that has not elected corporate tax treatment:
- One member: the LLC is disregarded. It has no separate tax return. The owner reports its income directly.
- Two or more members: the LLC is classified as a partnership, by default, with no election required.
Crossing from one member to two is what triggers this. Add a co-founder, an investor, or a spouse as a legal owner, and the entity's default federal tax classification changes on that date, whether or not anyone files anything to make it happen.
Being a partnership for tax purposes does not mean the partnership itself pays income tax. 26 U.S.C. §701 says it directly: "A partnership as such shall not be subject to the income tax imposed by this chapter. Persons carrying on business as partners shall be liable for income tax only in their separate or individual capacities." The tax bill lands on the members, not the entity.
That does not mean the entity has nothing to file. A multi-member LLC taxed as a partnership must file Form 1065, the U.S. Return of Partnership Income, every year. Form 1065 reports the LLC's income and splits it among the members. Each member then gets a Schedule K-1 showing their share, and each member reports that share on their own personal return. No tax is paid at the Form 1065 stage. The tax is paid by the members, on the K-1 amounts, whether or not the LLC actually distributed any cash to them.
The default can be changed. Any eligible entity, with one member or several, can file Form 8832 to elect corporate tax treatment instead of the default. Some multi-member LLCs do this on purpose, usually for reasons tied to how the owners want profits reinvested or distributed. Filing that election is a separate decision from forming the LLC, and it is not automatic.
One more distinction worth keeping straight: this default applies to a domestic eligible entity, meaning one formed under U.S. state law. An LLC-equivalent entity formed under a foreign country's law follows a different default test under §301.7701-3(b)(2)(i), and can default to corporate treatment instead of partnership treatment. If you are forming your entity in a U.S. state, that different rule does not apply to you. It matters only if you are dealing with a foreign entity and wondering why its default classification looks different from a U.S. LLC's.
🇺🇸 If the IRS counts you as a U.S. person
The default partnership rule applies to your LLC exactly as described above. Your ownership share, your co-owners, and the state where you formed the LLC do not change the classification test. Two or more members means partnership by default.
What changes for you is what happens after the K-1 arrives. You report your share of the LLC's income on your Form 1040, along with everything else you earn, anywhere in the world. If the LLC made money but did not distribute cash to you, you still owe tax on your share. This surprises first-time LLC owners more than almost anything else about partnership taxation.
If you and your co-owners later want to elect S-corporation treatment instead of the partnership default, you can, as long as every member is eligible. Members who are individuals must be U.S. citizens or resident aliens; a nonresident alien as a member closes that door for the whole company (more on this below).
🌏 If it does not
The classification test does not ask about your immigration status, your visa, or your passport. It asks how many members the LLC has and whether the entity is domestic. A U.S. LLC with two or more members defaults to partnership treatment whether every member is a U.S. person, every member is a nonresident alien, or the ownership is mixed.
What changes for you is how your share of the income is taxed once it reaches you. As a nonresident alien, you generally owe U.S. tax only on income that is effectively connected to a U.S. trade or business, not on your worldwide income. You still receive a K-1 from the LLC, and you still have to work out which part of it is U.S.-connected. That is a question about your own tax status, covered on the U.S. person page in this guide, not a special rule for multi-member LLCs.
One door does close because of your status, and it applies to the whole LLC, not just to you. Under 26 U.S.C. §1361(b)(1)(C), a nonresident alien cannot be a shareholder of an S corporation. If your multi-member LLC ever wants to elect S-corporation treatment, every member has to qualify, and one nonresident alien member is enough to make that election unavailable to the entire company for as long as that member holds an interest. This is not about where the LLC is formed or who runs it day to day. It is a strict bar written into the statute.
The lane comparison
| What | 🇺🇸 U.S. person | 🌏 Not a U.S. person |
|---|---|---|
| Default classification with 2+ members | Partnership, automatic | Same. Partnership, automatic |
| Who files the entity's return | LLC files Form 1065 | Same. LLC files Form 1065 |
| What each member gets | Schedule K-1 | Same. Schedule K-1 |
| What income gets taxed on your K-1 share | All of it, worldwide | Generally only the part connected to the United States |
| Can the LLC elect S-corporation status | Yes, if every other member also qualifies | No, if even one member is a nonresident alien. §1361(b)(1)(C) blocks the whole entity |
| Can the LLC elect corporate tax treatment instead of partnership (Form 8832) | Yes | Yes. This election does not depend on member residency |
The entity-level rule does not distinguish between the two lanes. What diverges is what happens to each member's own share of income, and whether the S-corporation door is open at all.
Common mistakes
🇺🇸 If the IRS counts you as a U.S. person
- Assuming a multi-member LLC needs to file something to "become" a partnership. It already is one, by default, from the day the second member joins.
- Not filing Form 1065 because the LLC did not distribute any cash. The filing requirement does not depend on distributions.
- Adding a co-founder mid-year and not realizing the classification, and the filing obligations that come with it, started on that date.
🌏 If it does not
- Assuming that because you are a nonresident alien, the LLC itself is taxed differently. The entity-level classification is the same as it would be for any U.S. LLC with two or more members. What differs is your personal share.
- Trying to elect S-corporation treatment without checking every member's status first. One nonresident alien member ends the discussion under §1361(b)(1)(C), no matter how the other members are structured.
- Confusing a U.S. LLC with foreign members with a foreign-formed LLC-equivalent entity. They use different default classification tests.
FAQ
Does a multi-member LLC automatically become a partnership for tax purposes?
Yes, if it is a domestic eligible entity with two or more members and has not elected corporate treatment. 26 CFR §301.7701-3(b)(1)(i) makes partnership the default. No election is required to get this result.
Does the LLC pay income tax itself?
No. 26 U.S.C. §701 says a partnership is not subject to income tax as an entity. The members are taxed individually on their share of the income, whether or not the LLC distributes cash to them.
Does a multi-member LLC have to file a tax return even though it pays no entity-level tax?
Yes. The LLC files Form 1065 and issues a Schedule K-1 to each member. Not owing entity-level tax is different from having no filing obligation.
Can a multi-member LLC choose to be taxed as a corporation instead?
Yes. Any eligible entity can file Form 8832 to elect corporate tax treatment instead of the default classification. This is a separate step from forming the LLC and does not happen automatically.
If one member of my LLC is a nonresident alien, can the LLC still elect S-corporation status?
No. 26 U.S.C. §1361(b)(1)(C) bars nonresident aliens from being S-corporation shareholders. One nonresident alien member closes that election for the entire LLC, regardless of how the ownership is otherwise structured.
Does my personal residency status change how the LLC itself is classified?
No. The classification test looks at the number of members and whether the entity is domestic. It does not ask about citizenship or residency. What changes based on your status is how your own share of the K-1 income is taxed once it reaches you.
Is a U.S. LLC with foreign members the same, for tax purposes, as an LLC formed in a foreign country?
No. A domestic multi-member LLC follows the default rule in §301.7701-3(b)(1)(i). An entity formed under a foreign country's law follows a different default test, and can default to corporate treatment instead of partnership treatment. Where the entity is formed, not who owns it, decides which test applies.
What happens if I add a second member to what was a single-member LLC?
The classification changes on the date the second member joins. What was a disregarded entity becomes a partnership by default, with its own Form 1065 filing obligation starting from that point, unless the LLC has already elected corporate treatment.