Single-Member LLC The most common new business structure.
A single-member LLC is a Limited Liability Company owned by exactly one person or entity. By default, the IRS treats it as a "disregarded entity," meaning the LLC itself does not file a federal tax return; the owner reports business activity on their personal return. It is the most common structure for solo founders, freelancers, real estate investors with a single property, and side businesses.
A single-member LLC (often abbreviated SMLLC) is a Limited Liability Company with one owner. By default, it is treated as a "disregarded entity" for federal tax purposes, but it is still a separate legal entity from the owner for liability and state-law purposes.
Here is what that actually means.
The "disregarded entity" classification is sometimes confusing. It means the IRS ignores the LLC for federal income tax purposes; the owner reports business profits and losses on Schedule C of their personal Form 1040, just like a sole proprietor would. But the LLC is not the same as a sole proprietorship for liability purposes. The state-law separation between the owner and the LLC remains.
For most solo founders, a single-member LLC is the right structure. It provides liability protection, costs almost nothing to maintain, and does not require a separate federal tax return. Compared to a sole proprietorship, you get the liability shield. Compared to a multi-member LLC or corporation, you avoid the additional tax filings.
Single-member LLCs can elect S-Corp tax treatment by filing Form 2553 with the IRS, typically once net profit (after expenses, before owner pay) crosses $60,000 to $80,000. The election lets the owner pay themselves a reasonable salary through payroll, then take the remainder as distributions exempt from self-employment tax. The election is reversible (but with a 5-year waiting period before re-electing).
The four things to know.
Common situations.
Related concepts side by side.
Common questions.
Is a single-member LLC pass-through for tax purposes?
Do I need an EIN for a single-member LLC?
Can a single-member LLC have employees?
Should a single-member LLC elect S-Corp tax treatment?
Does a single-member LLC need an Operating Agreement?
Can I be sued personally if I operate as a single-member LLC?
Can I add a member later?
How does a single-member LLC differ from a sole proprietorship?
Can a non-US person form a single-member LLC?
What is the cost of a single-member LLC?
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