California small business owners typically choose between a sole proprietorship, LLC, S-corporation, or C-corporation, each of which carries different liability protection, tax treatment, and formation costs under the California Corporations Code and Revenue and Taxation Code. The choice made at formation affects how the business is taxed, how ownership is documented, and how much personal liability the owners carry if the business is sued. Getting this decision right from the start is significantly less expensive than restructuring later.
California has a large and varied small business economy, and the San Fernando Valley, including Canoga Park and West Hills, has a significant concentration of small businesses and professional practices. The structure most appropriate for a dental practice may differ from the structure suited to a retail business or tech startup, making those distinctions an important starting point for any formation decision.
Overview of California Business Structures
The table below provides a side-by-side comparison of the main business structures available to California business owners, including key differences in liability, taxation, and annual cost.
| Structure | Liability Protection | Tax Treatment | California Annual Fee | Best For |
| Sole Proprietorship | None, owner personally liable | Pass-through (Schedule C) | None | Solo freelancers, very low-risk ventures |
| General Partnership | None, partners personally liable | Pass-through (Form 1065) | None (but SOS filing required) | Small co-owned businesses with trusted partners |
| LLC | Yes, members generally protected | Pass-through by default; can elect S or C corp status | $800 minimum + income-based fee (Rev. & Tax Code § 17942) | Most small to mid-size businesses; flexible structure |
| S-Corporation | Yes, shareholders generally protected | Pass-through (Form 1120-S); no entity-level federal tax | $800 minimum FTB franchise tax | Owner-operators wanting to minimize self-employment tax |
| C-Corporation | Yes, shareholders generally protected | Double taxation: entity pays tax, shareholders pay tax on dividends | $800 minimum FTB franchise tax | Businesses seeking venture capital; companies planning public offering |
The comparison above is a starting point. Each structure interacts with California tax law and the specific nature of the business in ways that require individual analysis. For example, a dental or medical practice in California may generally be formed only as a professional corporation, a general partnership, or a sole proprietorship, because Corporations Code Section 17701.04(e) bars an LLC from rendering professional services requiring a license.
The California LLC: Why It Is the Most Common Choice
The limited liability company is the most commonly chosen structure for California small businesses because it combines personal liability protection with flexible tax treatment and relatively simple governance requirements. Under California Corporations Code Section 17702.01, a single person can form an LLC, and there is no requirement for a board of directors or formal meeting minutes.
The LLC’s primary drawback in California is its cost. California generally imposes an $800 annual tax on LLCs under Revenue and Taxation Code Section 17941, along with an additional fee for LLCs with total income derived from or attributable to California of at least $250,000. The current fee is $900 for income from $250,000 to $499,999, $2,500 for income from $500,000 to $999,999, $6,000 for income from $1 million to $4,999,999, and $11,790 for income of $5 million or more.
The temporary first-year exemption created by Assembly Bill 85 applied only to taxable years beginning from January 1, 2021, through December 31, 2023, and is unavailable to LLCs formed in 2026.
An LLC’s operating agreement is the document that governs how the company is managed, how profits are allocated, and how ownership can be transferred. California does not require a written operating agreement, but operating without one leaves the company subject to the default rules in the Corporations Code, which may not reflect the owners’ actual intentions.
S-Corporations and C-Corporations in California
An S-corporation provides liability protection similar to a C-corporation but is taxed as a pass-through entity at the federal level. Shareholders of a California S-corporation report their share of the company’s income on their personal tax returns, avoiding the double taxation that applies to C-corporations. California, however, imposes an annual tax equal to the greater of 1.5 percent of the S-corporation’s net income or the $800 minimum.
One reason business owners choose an S-corporation over an LLC is the potential to reduce self-employment tax. An S-corporation owner-operator who pays themselves a reasonable salary can take additional distributions from the company’s profits without those distributions being subject to FICA taxes. This strategy requires careful implementation to avoid IRS scrutiny.
A C-corporation is the preferred structure for businesses that plan to raise venture capital or pursue a public offering, because it allows for multiple classes of stock, an unlimited number of shareholders, and greater flexibility in ownership structure. The trade-off is double taxation: the corporation pays California tax at the greater of 8.84 percent of net income or the $800 minimum, and shareholders pay tax again on dividends received.
Under Revenue and Taxation Code Section 23153(f), a newly incorporated corporation is exempt from the $800 minimum in its first taxable year.
Which Business Structure Is Right for a California Small Business?
The decision depends on the type of business, the number of owners, whether the business plans to raise outside investment, and the owners’ tax situation. A corporate formation attorney in Los Angeles can assess these factors and recommend a structure that matches the business’s actual goals, not just the most popular default.
Several additional steps are required after selecting a structure. A California LLC must file Articles of Organization with the Secretary of State and file a Statement of Information within 90 days and every two years thereafter under Corporations Code Section 17702.09. A corporation must file Articles of Incorporation, adopt bylaws, issue shares, hold an organizational meeting, and file a Statement of Information within 90 days and annually thereafter. Both types of entities must register with the California Franchise Tax Board, obtain applicable local business licenses, and in many cases register with the EDD if they will have employees.
Business owners in Canoga Park and West Hills should also confirm whether their city or county requires a local business license, which is separate from the state formation documents. The City of Los Angeles and the unincorporated portions of Los Angeles County have different local requirements.
Frequently Asked Questions
What business structure is best for a California small business?
The best structure depends on the business’s size, industry, ownership, and growth plans. A limited liability company (LLC) is the most common choice for California small businesses because it provides liability protection with flexible tax treatment. An S-corporation may offer tax advantages for owner-operators, while a C-corporation is typically used when seeking venture capital or planning a public offering.
What is the annual fee for a California LLC?
California LLCs are subject to an $800 minimum annual franchise tax under Revenue and Taxation Code Section 23153, plus an additional income-based fee for LLCs with California-sourced gross receipts above $250,000. The income-based fee increases in tiers as revenue grows. New LLCs formed on or after January 1, 2021 are exempt from the $800 fee in their first taxable year under AB 85.
What is the difference between an LLC and an S-corporation in California?
A California LLC and an S-corporation both provide liability protection and pass-through taxation, but they differ in structure and cost. An LLC has no restrictions on the number or type of members, while an S-corporation is limited to 100 shareholders who must be U.S. citizens or residents. An S-corporation may allow owner-operators to reduce self-employment taxes by splitting income between salary and distributions.
Do I need an attorney to form a business in California?
California does not require an attorney to form an LLC or corporation. However, legal counsel can help ensure the formation documents, operating agreement or bylaws, and initial ownership structure are properly drafted to avoid disputes and compliance problems later. This is particularly important for businesses with multiple owners or those in regulated industries.
How do I form an LLC in California?
To form an LLC in California, you must file Articles of Organization (Form LLC-1) with the California Secretary of State and pay the applicable filing fee. The LLC must also register with the California Franchise Tax Board, obtain a business license from the applicable city or county, and file a Statement of Information within 90 days of formation and every two years thereafter under Corporations Code Section 17702.09.
Contact Leiva Law Firm
Choosing the right business structure at the start can save significant time, money, and legal complexity later. Leiva Law Firm assists entrepreneurs and business owners in Los Angeles and the San Fernando Valley with corporate formation, operating agreement drafting, and related business law matters.
Contact Leiva Law Firm at (818) 519-4465 to discuss the right structure for your business.
Written by: Marlene Leiva, Esq. | The Leiva Law Firm
Last reviewed: August 2026
| LEGAL DISCLAIMER
This article is intended for general informational purposes only and does not constitute legal advice. Reading this content does not create an attorney-client relationship with The Leiva Law Firm or any of its attorneys. Laws and regulations may change; the information provided may not reflect the most current legal developments. Readers should consult a qualified attorney regarding their specific situation. |
