LLC vs S-corp in California, with math
California's LLC fee runs on receipts; its S-corp tax runs on profit. That single difference decides which structure is cheaper at the state level, and the answer flips with your margin. The federal side adds a second, usually larger, consideration.
The two formulas
- LLC (Form 568): $800 + the § 17942 fee on California receipts ($0, $900, $2,500, $6,000, or $11,790).
- S-corp (Form 100S): 1.5% of California net income, with an $800 minimum. No receipts-based fee.
An LLC can be taxed as an S-corp without changing its legal form: it files Form 2553 with the IRS and then files Form 100S in California instead of Form 568.
| Scenario | As LLC | As S-corp |
| $1.2M receipts, $95,000 profit | $800 + $6,000 = $6,800 | 1.5% × $95k = $1,425 ✓ |
| $1.2M receipts, $600,000 profit | $800 + $6,000 = $6,800 ✓ | 1.5% × $600k = $9,000 |
| $300k receipts, $150,000 profit | $800 + $900 = $1,700 | 1.5% × $150k = $2,250 |
| $200k receipts, $40,000 profit | $800 ✓ | $800 minimum (1.5% = $600) |
Entity-level California tax only. Owners pay personal California income tax on their share of profit under either structure.
The breakeven
At the state level, the S-corp is cheaper when 1.5% of profit is less than $800 plus the LLC fee. With $1.2 million of receipts the LLC pays $6,800, so the S-corp wins at any profit below about $453,000 (a 38% margin). With $300,000 of receipts the LLC pays $1,700, and the S-corp wins only below about $113,000 of profit. Under $250,000 of receipts the LLC never pays more than $800, so the state-level math can only favor the LLC.
The federal layer is usually bigger
An active LLC owner pays self-employment tax (15.3% up to the Social Security wage base, 2.9% above it) on nearly all profit. An S-corp owner pays payroll tax only on a reasonable salary; the rest can come out as distributions free of payroll tax. On $150,000 of profit with a $90,000 salary, that can save several thousand dollars a year: enough to outweigh the $550 California difference in the third row above. Offset it against payroll-provider fees, state unemployment insurance, and the time cost of running payroll.
Things the S-corp takes away
- Flexible profit splits — S-corp distributions must follow share ownership exactly.
- Non-US and entity owners — S-corps can only have eligible individual shareholders.
- Tax-free distributions of appreciated property, which trigger gain in an S-corp.
- Simplicity: payroll filings, a corporate return, and stricter record-keeping.
Rule of thumb
Low-margin, high-volume businesses (e-commerce, distribution, agencies passing through contractor costs) often pay less California tax as S-corps. High-margin businesses usually do better under the LLC tiers at the state level but may still elect S status for the federal payroll-tax savings once profit clearly exceeds a reasonable salary. Try both entity types in the California calculator, read the election guide, and run the numbers with a CPA before electing.