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Entity Choice • Jul 27 2025 • ~9 min read

Tax content reviewed

The Smart Business Owner's Guide to LLCs, S Corps, and C Corps

A California-aware guide to taxes, liability, state fees, and how to choose the right structure for growth.

Quick note: This guide is for education. Your facts matter and rules change. We will model California and federal outcomes before you file.

Contents

Overview

Choosing an entity is not a box to check. It affects how you are taxed, how you pay yourself, how you bring on investors, and how well your personal assets are protected. Most California owners compare three paths: LLC, S corporation (an election), and C corporation.

Tip

Start simple, then optimize. Many owners begin as an LLC for flexibility, then elect S corp when profits become steady after a market-rate salary.

Quick comparison table

Feature LLC S corp C corp
Liability shield Generally, with legal exceptions; personal guarantees and an owner’s own conduct can create personal liability. Generally, with legal exceptions. Generally, with legal exceptions.
Federal taxation (default) Usually disregarded for 1 owner (Schedule C, E, or F as applicable); partnership for 2+ owners unless an exception or election applies. Pass-through (Form 1120-S with K-1s to owners). Entity pays corporate tax, dividends taxed to owners.
How owners get paid Owner draws; active members often owe self-employment tax on profits. Reasonable W-2 pay for services before non-wage distributions; passive ownership alone does not require a salary. W-2 salary for employee-owners; dividends possible.
California annual taxes Generally $800 annual LLC tax, plus an LLC fee at $250,000 of California-attributable total income; corporate elections follow corporate rules. Generally 1.5% of California taxable net income, subject to an $800 minimum and applicable exceptions. Generally 8.84% of California taxable net income, subject to an $800 minimum and applicable exceptions.
Owners and investors Flexible members; classes set by operating agreement. Generally up to 100 eligible shareholders, including U.S. citizens/resident aliens, certain trusts and estates; no nonresident-alien shareholders; one stock class. Unlimited shareholders, multiple classes; foreign and institutional OK.
Good fit when You want simplicity and flexibility. Profits are steady beyond a reasonable salary and you want to cut SE tax. You plan to raise capital or retain earnings to scale.

LLC (Limited Liability Company)

Why owners like it: Flexible ownership and a separate legal structure. A domestic single-member LLC is generally disregarded for federal income tax; an individual owner reports the activity on Schedule C, E, or F as appropriate. A domestic multi-member LLC is generally a partnership filing Form 1065, subject to exceptions such as qualifying community-property ownership. An eligible LLC may elect corporate or S-corporation taxation. Legal liability protection should be reviewed with an attorney.

California costs to know

  • Generally an $800 annual tax while the LLC is organized, registered, or doing business in California, even with no profit, until properly canceled. The broad first-year exemption applied only to tax years beginning in 2021 through 2023.
  • An additional LLC fee starts at $250,000 of California-attributable total income, generally gross income plus cost of goods sold. It is not measured by net profit. These LLC tax and fee rules apply to partnership/disregarded classifications; an LLC taxed as a corporation follows the corporate regime.

When an LLC shines

  • Solo freelancers and consultants who want liability protection without payroll complexity.
  • Businesses with variable profits where S corp payroll would be burdensome.
  • Owners who want flexible allocations via an operating agreement.

S corporation (an election you make)

An S corp is a federal tax election for an eligible corporation or LLC. A shareholder who performs services must receive reasonable compensation before non-wage distributions for that work. Properly classified distributions generally avoid employment tax, but business profit still passes through for income-tax purposes whether or not cash is distributed. Stock basis and other rules determine whether a distribution creates additional tax.

Key requirements

  • Generally no more than 100 shareholders, limited to eligible individuals, certain trusts and estates, and other specifically permitted owners. Nonresident aliens, partnerships, and corporations generally cannot be shareholders.
  • One class of stock (voting differences allowed).
  • File IRS Form 2553 within 2 months and 15 days after the start of the tax year you want the status to begin. Late election relief may be available.

California treatment

California generally recognizes the federal S election and uses Form 100S. The usual tax is 1.5% of California taxable net income, subject to an $800 minimum. Qualifying newly formed or qualified corporations are exempt from the minimum for their first taxable year, but still owe tax on net income. The $800 is a minimum, not an additional tax on top of 1.5%.

C corporation

Why choose it: You plan to raise capital, issue multiple classes of stock, offer equity incentives, or retain earnings for growth. C corps pay income tax at the entity level and shareholder dividends are taxed again at the personal level.

California treatment

The general California corporate rate is 8.84%, subject to an $800 minimum franchise tax where applicable. A qualifying newly incorporated or qualified corporation can avoid the first-year minimum, but still owes tax on net income. Federal corporate tax and shareholder-level dividend tax also belong in the comparison.

California fees and taxes to plan for

  • Minimum franchise or annual tax: Registration or organization can create a filing and tax obligation even if the entity has no activity. First-year rules differ for LLCs and corporations.
  • LLC fee: For eligible LLC classifications, the fee starts at $250,000 of California-attributable total income and is separate from the $800 annual tax.
  • S corp entity tax: Generally 1.5% of California taxable net income, with an $800 minimum where applicable.
  • C corp franchise tax: Generally 8.84% of California taxable net income, with an $800 minimum where applicable.
  • Local taxes: Check current city registration, license-tax, and gross-receipts-tax obligations where the business operates.

Owner pay: salary, draws, and distributions

LLC (default tax)

  • Individual sole proprietors and partners generally take draws rather than W-2 wages from that business.
  • Active members usually pay self-employment tax on profits.

S corp

  • Pay a reasonable W-2 salary for services.
  • Distributions generally avoid FICA after reasonable compensation; pass-through income and stock-basis rules still apply.

Reasonable salary matters

Compensation should reflect services, duties, time, experience, and comparable pay. A fixed salary-to-distribution percentage is not an IRS safe harbor.

Switching from LLC to S corp: the clean way

  1. Confirm eligibility and target start date.
  2. Adopt payroll and health plan policies for owner-employees.
  3. File IRS Form 2553 on time. Keep a copy with corporate records.
  4. Update accounting: track shareholder basis and distributions.
  5. File federal 1120-S and California 100S, plus payroll returns.

Decision framework

  1. Profit profile: After a market-rate salary, do you still have consistent profit? If yes, S corp often wins on employment taxes.
  2. Funding plan: Need outside investors or multiple stock classes? That points to a C corp.
  3. Admin appetite: S corps and C corps add payroll and separate returns. Prefer minimal admin? LLC default is lighter.
  4. California math: At higher California receipts, the LLC fee can tip the scales toward an S corp. Model both.

Want a side-by-side modeled for your numbers?

We compare LLC vs. S corp vs. C corp with your profit, payroll, and California fees so you choose confidently.

Request a free consultation

FAQ

Can a single-member LLC elect S corp status?

Yes. An eligible LLC can file Form 2553 to be treated as an S corp for tax purposes while staying an LLC legally.

When is a C corp better?

If you plan to raise capital, need multiple classes of stock, or want to retain earnings, a C corp often fits better despite double taxation.

What happens if I miss the S corp election deadline?

Late election relief may be available. File as soon as possible and include the required statements to request relief.

Does California follow federal bonus depreciation?

No. California does not conform to federal bonus depreciation and has differences for Section 179. Plan for federal vs. state timing differences.

Official sources

Reviewed October 8, 2026. Use the forms and limits for the tax year you are filing; linked agency pages may be updated for later years.

Related service

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