The precise income threshold where an S-Corp election starts saving more money than it costs — with real numbers for different income levels.
The LLC-to-S-Corp question is one every successful self-employed person eventually faces. The short answer: switch when your net business income consistently exceeds $60,000–80,000. Here's the detailed math and the caveats.
As a single-member LLC (or sole proprietor), you pay self-employment (SE) tax of 15.3% on your entire net business income. This is your combined Social Security (12.4%) and Medicare (2.9%) taxes — both halves, since you're both employer and employee.
With an S-Corp election, you split your income into two parts:
The savings come from shifting income from the SE-taxed salary to the non-SE-taxed distribution.
This is the IRS's main enforcement point. You can't pay yourself $1 in salary and take everything as a distribution. The IRS requires a "reasonable salary" — what you'd pay someone else to do your job. Factors:
A common approach for service businesses: reasonable salary is 40–60% of net profit. At $100k profit, salary of $50–60k is generally defensible. At $200k, salary of $80–120k is typical. Consult your CPA — an IRS challenge is expensive even if you win.
Total: $1,500–4,000/year in additional ongoing costs. Ensure your gross tax savings exceed this by a comfortable margin before electing.
Almost never for small businesses. The C-Corp's 21% flat rate sounds attractive vs the top 37% rate, but dividends are taxed again when distributed to shareholders ("double taxation"). The only time C-Corp clearly makes sense: you're raising VC or angel investment, since institutional investors require C-Corp structure (particularly Delaware C-Corp).
→ Use our Business Entity Calculator to see the tax comparison at your specific income level.
| Net Profit (Before Owner Pay) | Estimated Annual Tax Savings | After Compliance Costs | Recommendation |
|---|---|---|---|
| Under $50,000 | $0–$1,000 | Net loss likely | Stay LLC |
| $50,000–$75,000 | $1,500–$3,500 | $0–$1,500 | Borderline — evaluate with CPA |
| $75,000–$120,000 | $3,500–$7,000 | $1,500–$5,000 | S-Corp likely worth it |
| $120,000–$200,000 | $7,000–$14,000 | $4,000–$11,000 | S-Corp clearly worth it |
| $200,000+ | $12,000–$20,000+ | $8,000–$16,000+ | S-Corp strongly recommended |
Estimates assume single-member LLC vs S-Corp election, self-employment tax rate of 15.3% (12.4% Social Security + 2.9% Medicare), and compliance costs of $2,000–$4,000/year. Social Security wage base cap for 2026 is approximately $168,600. Consult a CPA for your specific situation.
The rule of thumb: If your net business profit consistently exceeds $60,000–$80,000 per year and you expect it to stay there, the S-Corp election is almost certainly worth the additional complexity and cost. Below that threshold, the tax savings rarely justify the compliance burden.
Not all states treat S-Corps equally. Some important state-level factors:
California: Charges a minimum $800/year franchise tax for both LLCs and S-Corps, plus a 1.5% S-Corp tax on net income. The state-level S-Corp tax partially offsets federal SE tax savings.
New York: Has its own S-Corp filing requirements and taxes. NYC adds an additional layer. The compliance cost is higher than average.
Texas, Florida, Nevada, Wyoming: No state income tax, so the S-Corp savings calculation is purely federal. Simpler and often more clearly beneficial.
Ohio: Has a Commercial Activity Tax (CAT) that applies to S-Corps with gross receipts over $150,000. This can offset some federal savings.
Always model the state-level impact with your CPA before making the election.
If you decide the switch makes sense, the process is straightforward:
Estimate your potential S-Corp tax savings. Use the free Business Entity Calculator to compare LLC vs S-Corp at your income level — no signup required.
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