The California-Specific Problem
The standard LLC vs. S-Corp comparison — save 15.3% SE tax on distributions above your reasonable salary — is correct at the federal level. But California adds a layer that changes the math: a 1.5% franchise tax on S-Corp net income with an $800 annual minimum, plus separate state filing requirements.
At lower income levels, this state-level cost narrows or eliminates the S-Corp advantage. At higher income levels, it barely moves the needle. The crossover point is different for every California business owner — and most get the wrong answer because they're using the federal math only.
Run your exact California numbers at the Entity Comparison Calculator → — it models the CA franchise tax alongside federal SE tax, income tax, and the 23% QBI deduction.
Federal S-Corp Savings vs. California Franchise Tax: The Breakeven
Here's how the CA franchise tax interacts with S-Corp SE tax savings at six income levels. Assumptions: single filer, reasonable salary set at 40% of net income, payroll service cost $1,200/year, Form 1120-S preparation $800/year incremental.
| Net Income | Federal SE Tax Savings | CA Franchise Tax (1.5%) | Net Admin Costs | Net CA S-Corp Advantage |
|---|---|---|---|---|
| $50,000 | $2,295 | $800 (minimum) | $2,000 | −$505 (don't elect) |
| $80,000 | $4,470 | $1,200 | $2,000 | +$1,270 |
| $100,000 | $5,738 | $1,500 | $2,000 | +$2,238 |
| $150,000 | $10,514 | $2,250 | $2,000 | +$6,264 |
| $200,000 | $14,044 | $3,000 | $2,000 | +$9,044 |
| $250,000 | $16,337 | $3,750 | $2,000 | +$10,587 |
The California S-Corp Breakeven: ~$75,000–$85,000
- Below $75K net income: CA franchise tax + compliance overhead typically exceed federal savings. Stay an LLC.
- At $80K: marginal advantage (~$1,270/yr). Run your specific numbers before electing.
- At $100K+: the election reliably pencils out. Net savings accelerate with income.
- At $150K+: S-Corp saves $6,000–$10,000+/yr after all California costs.
The breakeven is higher in California than in most other states because of the 1.5% state-level franchise tax. In states with no S-Corp franchise tax (like Texas or Nevada), the breakeven is closer to $50,000–$60,000. California moves it to $75,000–$85,000.
California-Specific Rules That Don't Exist in Other States
The 1.5% S-Corp Franchise Tax
California taxes S-Corp net income at 1.5% at the state level — on top of your individual California income tax on pass-through income. The $800 minimum applies even if you have no profit. LLCs pay an $800 minimum franchise tax too, but LLCs don't pay the 1.5% rate on net income (they pay a flat-fee LLC gross receipts tax above $250K in revenue, which is different).
For a $150K net income S-Corp in California: 1.5% × $150,000 = $2,250 in annual state-level S-Corp franchise tax. For an LLC at $150K: $0 in state income tax at the entity level (pass-through only). The difference — $2,250/year — comes directly off the federal S-Corp savings.
The Separate California S-Corp Election (Form 3560)
California does not automatically accept your federal S-Corp election (IRS Form 2553). You must also file California Form 3560 with the Franchise Tax Board.
⚠️ Common Mistake: Filing Form 2553 Without Form 3560
Filing the federal election without the California election creates a mismatch: your entity is an S-Corp federally but a C-Corp in California. This triggers California C-Corp back taxes (8.84% flat rate vs. 1.5% S-Corp rate) and penalties for the period you were unintentionally a CA C-Corp. File both forms together.
Deadline: File Form 3560 within 60 days of the first day of the tax year you want California S-Corp treatment to be effective — or within 60 days of filing the federal Form 2553, whichever is later.
California's $800 LLC vs. S-Corp Minimum Tax Comparison
Both LLCs and S-Corps owe California's $800 minimum franchise tax annually. This is not a differentiator — it applies to both structures. The differentiator is the additional 1.5% rate that S-Corps owe on net income above $0. LLCs only owe additional gross receipts fees (separate from the $800) above $250K in California-source revenue:
| CA Revenue | LLC Annual Fee | S-Corp Annual Fee |
|---|---|---|
| Under $250,000 | $800 minimum | $800 minimum + 1.5% of net income |
| $250,000–$499,999 | $900 | $800 minimum + 1.5% of net income |
| $500,000–$999,999 | $2,500 | $800 minimum + 1.5% of net income |
| $1,000,000–$4,999,999 | $6,000 | $800 minimum + 1.5% of net income |
| $5,000,000+ | $11,790 | $800 minimum + 1.5% of net income |
Note: LLC fees are based on gross revenue; S-Corp franchise tax is based on net income. At high gross revenue with thin margins, the LLC gross receipts fee may exceed the S-Corp's 1.5% net income tax. Run both scenarios if your gross revenue exceeds $500K.
No S-Corp First-Year Exemption
New California LLCs are exempt from the $800 minimum franchise tax in their first taxable year (AB 85, 2020). This exemption does not apply to S-Corps — S-Corps owe the $800 minimum from day one. If you're forming a new California entity and considering an immediate S-Corp election, factor in this asymmetry. In many first-year scenarios, forming as an LLC and electing S-Corp for the following January 1 saves $800 and avoids the first-year complexity.
Real-World Example: $150K Single Filer in California
Here's the exact breakdown for a single freelancer or consultant earning $150,000 net in California in 2026. Salary set at $60,000 (40% of net income), payroll/accounting costs $2,000/year.
| Cost Item | LLC (Schedule C) | S-Corp |
|---|---|---|
| Federal SE Tax | $21,194 | $9,180 (on $60K salary) |
| CA 1.5% Franchise Tax | $0 | $2,250 |
| Additional Payroll/Accounting | $0 | $2,000 |
| QBI Deduction (23%) | −$5,934 income tax savings | −$5,934 income tax savings |
| Total Extra Costs vs. LLC | — | +$4,250 |
| Total Extra Savings vs. LLC | — | +$12,014 |
| Net Advantage of S-Corp | — | +$7,764/year |
At $150K in California, the S-Corp election saves approximately $7,764/year after accounting for the CA franchise tax and compliance costs. The federal-only number would be $10,514 — California costs $2,750 of that back.
The Entity Comparison Calculator will run this math precisely for your income, salary assumption, and filing status.
When to Stay an LLC in California
Four Scenarios Where LLC Wins in California
- Income under $75K: The CA franchise tax and compliance costs typically exceed the federal SE tax savings. Stay an LLC, revisit at $80K+.
- High CA gross revenue with thin margins: California's LLC gross receipts fee kicks in above $250K revenue ($900/yr at $250K–$499K, scaling up). If your margins are thin, the S-Corp's 1.5% net income tax may actually be lower than the LLC gross receipts fee. Run both scenarios.
- First year of operation: New LLCs get the first-year $800 waiver. S-Corps don't. If you expect your first year to be low-income, form as an LLC and elect S-Corp for the following January 1.
- Planning to raise venture capital: California C-Corps are the standard for VC-backed companies (preferred stock, 83(b) elections, etc.). Neither LLC nor S-Corp is the right answer if you're on a VC track.
The Decision Sequence for California
Five steps from "I'm a California LLC owner wondering about S-Corp" to a decision you can act on before the next election deadline.
1 Run the Entity Comparison Calculator with California Selected
The Entity Comparison Calculator models the CA 1.5% franchise tax alongside federal SE tax, income tax, and the 23% QBI deduction. Enter your projected net income, filing status, and set state to California. Note the net CA S-Corp advantage — not just federal.
If the net CA advantage is under $2,000/year, it's borderline. If it's over $4,000/year, the election reliably pencils out for California residents.
2 Check Your Gross Revenue vs. LLC Fee Schedule
If your California-source gross revenue exceeds $250,000, also calculate what you'd owe under the LLC gross receipts fee schedule. For some business models with high revenue but lower net income, the LLC gross receipts fee may exceed the S-Corp's 1.5% net income tax. The LLC fee is on gross revenue; the S-Corp rate is on net income.
3 Confirm with a California-Licensed CPA
If the net advantage exceeds $2,000/year, talk to a California-licensed CPA about the election timing and Form 3560 filing. California has state payroll requirements (SDI, SUI) in addition to federal FICA, and your CPA will verify QBI eligibility and any SSTB phase-out issues if you're in a professional services business.
4 File IRS Form 2553 and CA Form 3560 Together
File both forms together — don't file one without the other. The IRS form creates the federal S-Corp election; the California form creates the California S-Corp election. Filing only the federal form is the most common California S-Corp mistake and creates a taxable mismatch.
For the election to be effective January 1, 2027: file IRS Form 2553 by March 15, 2027 and CA Form 3560 within 60 days of either the start of the tax year or the date you filed Form 2553. See the full S-Corp Election 2026 Guide → for deadline details and late election relief options.
5 Set Up California Payroll from the Election Effective Date
California has its own payroll tax requirements — State Disability Insurance (SDI) and State Unemployment Insurance (SUI) — in addition to federal FICA. Your payroll service must be set up for California from the election effective date. Start payroll the same month the election takes effect. Failure to run consistent payroll is how S-Corp elections get disregarded.
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