LLC Tax Treatment Options: Sole Prop vs Partnership vs S-Corp vs C-Corp
The most misunderstood fact about LLCs: the LLC is a legal structure, not a tax classification. The IRS lets you choose how your LLC is taxed, and the default is not always optimal. Here are the four options and when each one makes sense.
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The Quick Answer
Single-member LLC defaults to sole proprietorship tax treatment (Schedule C). Multi-member LLC defaults to partnership tax treatment (Form 1065). Both can elect S-Corp treatment when profit exceeds $60,000-$80,000. C-Corp election is available but only makes sense in rare circumstances. Most LLCs should stay with the default until income warrants S-Corp election.
The Four Options Side-by-Side
Disregarded entity (sole prop default): For single-member LLCs. All profit on Schedule C. Subject to self-employment tax. Simple filing. Best for most solo founders under $60K net profit.
Partnership (multi-member default): Form 1065 + K-1s to each member. Each member pays SE tax on their share. Slightly more complex filing. Best for most multi-member LLCs under $80K total net profit.
S-Corp election: Salary + distributions structure. Payroll tax on salary only. Formal payroll required. Best for profitable LLCs over $60K-$80K net profit.
C-Corp election: Double taxation (corporate tax + dividend tax). Worth it only if you are retaining earnings in the business at scale or planning a venture-funded startup.
Default Treatment: When It Is Fine
Stay with the default sole proprietorship or partnership treatment if: your net profit is under $60,000 consistently, you do not want to manage formal payroll, your business income is variable year-to-year, or you are in the early stages and expect your profit level to change significantly. The default is not a mistake — it is the right choice for the majority of small businesses.
S-Corp Election: When to Make the Switch
Elect S-Corp treatment when: your net profit consistently exceeds $60,000-$80,000, you are stable enough to commit to a reasonable salary, you have a CPA who can manage the added compliance, and the math shows savings after accounting for payroll software and additional accounting fees. File IRS Form 2553 by March 15 to apply for the current tax year, or within 75 days of the tax year start.
C-Corp Election: Rare and Specific Use Cases
Electing C-Corp tax treatment on an LLC is unusual and generally only makes sense if: you are retaining significant earnings in the business (current 21% corporate rate vs. higher personal rates), you are providing employee benefits (health insurance, retirement plans) that are more tax-advantaged under a C-Corp, or you are planning an acquisition and the buyer prefers a C-Corp structure. Consult a CPA before making this election — it has significant and not always reversible implications.
The Verdict
Default tax treatment works for most small businesses. Revisit S-Corp election annually with your CPA once you are consistently profitable. C-Corp election is a specialized decision that requires professional guidance. The most expensive mistake is electing S-Corp before you are profitable enough to justify the overhead.
How to Get Started
Your LLC's default tax treatment is automatic — no action required when you form. To elect S-Corp treatment, file IRS Form 2553. To change from S-Corp back to C-Corp treatment requires a five-year waiting period in most cases — confirm with your CPA before electing. Annual review with a CPA is the best way to ensure your current election is still optimal.
RECOMMENDED TOOLS
IRS Form 2553
Official S-Corp election form and instructions
Gusto
Payroll software required for S-Corp salary compliance
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FREQUENTLY ASKED QUESTIONS
Do I need to do anything to get the default LLC tax treatment?
No. A single-member LLC is automatically treated as a disregarded entity. A multi-member LLC is automatically treated as a partnership. Both are default IRS classifications requiring no election.
Can I elect S-Corp treatment partway through the year?
The election must be made within the first 75 days of the tax year you want it to apply to. If you miss the deadline, you can elect for the following year by March 15.
What if I make the wrong election?
S-Corp to default LLC treatment reversal generally requires a five-year waiting period. C-Corp election can also be difficult to reverse. This is why working with a CPA before making any election is strongly recommended.
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