Choosing the right California business entity is one of the first and most consequential decisions a founder will make. Whether you form an LLC, a C corporation, an S corporation, a partnership, or a close corporation, the structure you pick dictates how exposed your personal assets are if the business is sued, how the IRS and the California Franchise Tax Board treat your income, whether investors will take you seriously when the term sheets start arriving, and how cleanly you can eventually exit. Get the decision right the first time and the entity quietly does its job in the background for years. Get it wrong and you are looking at a conversion process that can cost five figures in legal fees, trigger unexpected tax consequences, and reset valuable timing clocks like the QSBS holding period.

California also makes this decision more complicated than most states, including state tax obligations and the long reach of Section 2115 over Delaware corporations doing business in California. These issues combine to create a landscape where the default answer from a generic startup blog is often the wrong answer for a California business.

This guide walks through each entity type a founder is likely to encounter in California, from general partnerships and limited partnerships to LLCs, C corps, S corps, and close corporations, and closes with when it makes sense to skip California incorporation and form your company in Delaware instead.

California Partnerships: General, Limited, and LLP

General Partnerships in California 

The general partnership is the default entity any time two or more persons carry on a business for profit, regardless of whether they intended to form a partnership. California’s Revised Uniform Partnership Act (RUPA) largely governs the operation of general partnerships and was codified under the California Corporations Code §§ 16100 – 16591. There is no required filing at the state level, but the partnership can file a Statement of Partnership Authority. It is important to note that the local municipality may require a filing a DBA, and it is generally recommended that the partnership request an EIN from the IRS for tax purposes. For liability, the partners have joint and several and personal liability for all partnership obligations, meaning that the act of any partner on behalf of the partnership binds the others. From a tax perspective, the general partnership is viewed as a pass-through entity, meaning that the income earned by the partnership passes through to the partners who report the income to the IRS.

General partnerships make the most sense for short-term joint ventures with sophisticated co-owners and indemnification in place. This ensures that the partnership can “test the waters” before incurring additional formation costs. The general partnership is rarely the right long-term answer for an entity; the absence of a liability shield opens up the partners to unnecessary risk for their personal assets.

Limited Partnerships in California 

Limited partnerships in California are a business structure with at least one general partner and one limited partner. The general partner actively manages the conduct of the entity and has unlimited personal liability for the obligations of the limited partnership. In contrast, the limited partners are only liable up to their investment amount and have a passive role aside from providing capital.

To form a limited partnership, the partners must file the Certificate of Limited Partnership (Form LP-1) with the Secretary of State and pay the filing fee. Internally, there should be a Partnership Agreement prepared that governs the operations of the entity. It is important to note that the Partnership Agreement does not need to be filed publicly. 

From a tax standpoint, there are a couple of considerations to keep in mind. First, the limited partnership follows a pass-through taxation structure, but limited partnerships are required to file Form 565 with the California Franchise Tax Board and Form 1065 with the IRS. These two tax forms reports the income, deductions, and credits of the partnership for the tax year and importantly, does not create any tax liability for the entity itself. Instead, the partners will receive a Schedule K-1 from the partnership that they will report on their individual returns. It is important to note that limited partnerships are subject to the annual minimum franchise tax of $800 in California.

Limited Liability Partnerships in California 

California does allow for the formation of Limited Liability Partnerships; however, these are a specialized business structure in the state that is limited to licensed professionals (licensed attorneys, certified public accountants, engineers land surveyors, and architects). This structure allows licensed professionals to share a practice with one or more other professionals without incurring any liability for the actions of their peers.

It is important for those deciding to form an entity that Limited Liability Partnerships and Limited Partnerships are two distinct entitles from each other and cannot be used interchangeably.

California LLCs: Formation, Pros, and Cons

Formation of an LLC in California 

A California Limited Liability Company is a flexible business structure that shields personal assets from business debts and legal liabilities and has a tax structure similar to a partnership. Additionally, there is flexibility in how the entity is managed. It can either be member-managed (all owners run the business) or manager-managed (owners appoint specific people to handle daily operations). LLCs in California are governed by the California Revised Uniform Limited Liability Company Act and is found in California Corporations Code §§ 17707.01-17713.13.

To form an LLC, you must file the Articles of Organization (Form LLC-1) with the Secretary of State and pay the filing fee. There is also a Statement of Information (Form LLC-12) that is due within 90 days then must be filed biennially. It is also prudent for members of the LLC to draft an Operating Agreement. This document is not filed but is an essential document that outlines the management structure, capital contributions, distributions, transfer restrictions, and dissolution. 

When an LLC is the Right Choice

The LLC is the workhorse for closely held California businesses that need a real liability shield without corporate formalities or double taxation. It is the default vehicle for real estate ventures (often one LLC per property to wall off liability between assets), licensed contractors (one of the few licensed trades California permits to use an LLC under B&P Code § 7065), and family-owned operating businesses where the flexibility of a custom operating agreement matters more than fitting into a standard corporate mold. Single-owner consultants in unlicensed fields, e-commerce operators, and small product businesses get the cleanest version: pass-through tax treatment, full liability protection, and the option to layer on an S election once profits justify the payroll overhead. The LLC's quiet strength is structural flexibility, including member or manager management, customized economics, entity or non-resident owners, and no required board meetings or stock ledgers.

When an LLC is the Wrong Choice

The LLC is the wrong choice for any California business providing "professional services" as defined in Corp. Code § 13401(a). Section 17701.04(e) flatly prohibits LLCs (domestic or foreign) from rendering services that require a license under the Business and Professions Code, the Chiropractic Act, or the Osteopathic Act, which sweeps in lawyers, physicians, dentists, CPAs, architects, engineers, psychologists, MFTs, physician assistants, veterinarians, and most other licensed professionals. Those practices must use a Professional Corporation under the Moscone-Knox Act, not an LLC or PLLC.

The LLC is also the wrong choice for any business on a venture-capital trajectory, because VCs almost universally require a Delaware C corporation and the LLC structure is fundamentally incompatible with their fund documents, preferred stock, and tax-exempt limited partners (the UBTI problem). Most consequentially, LLC interests are never eligible for QSBS under IRC § 1202, potentially the single most valuable tax benefit a founder can capture at exit. Finally, the LLC is a poor fit for high-revenue, thin-margin businesses in California, where the gross receipts fee is calculated on revenue rather than profit, a structural penalty an S corporation would avoid.

California Corporations: C Corp, Close Corp, and S Corp

The Default: C Corporations (C Corp) 

The C corp is one of the more common business entities and are formed with the filing of the Articles of Incorporation with the Secretary of State. Notably, C corps have several corporate formalities that need to be observed. Specifically, the corporation will need to maintain bylaws, a board of directors, officers, an annual shareholder meeting, director meetings, a stock ledger, and stock certificates. None of these documents are publicly filed and ensure that the corporation complies with the formal requirements of the California Corporations Code. It is important to note that the tax structure of a C corp is double taxation, meaning that the revenue earned by the corporation is subject to a corporate tax and income paid to owners is subject to taxation on their personal returns.

C corps make the most sense when the goal of the company is to raise institutional capital as preferred stock requires the corporate structure to be issued. Additionally, there are some tax advantages despite the double taxations structure. For example, founders and early investors who hold Qualified Small Business Stock under IRC § 1202 for at least five years can exclude the greater of $10M (or $15M for stock issued after July 4, 2025) or 10x their basis in capital gains at exit. The reinvesting of profits back into the company is generally another mechanism that will result in tax savings for the company.

Closely Held Corporations (California Statutory Close Corporations)

A California close corporation is a statutory variant of the general stock corporation, created under Corp. Code § 158. To form one, the Articles of Incorporation must include a statement that "This corporation is a close corporation" and cap the number of shareholders of record at no more than 35. The tradeoff for that ceiling is operational flexibility: shareholders can enter into a written shareholder agreement under Corp. Code § 300(b) that effectively runs the business in place of a traditional board, allocates profits disproportionately to ownership, waives annual meeting requirements, and resolves major decisions by unanimous or supermajority consent. Section 300(e) also protects the entity from veil-piercing claims premised on the failure to observe corporate formalities, which is one of the structure's signature benefits.In practice, however, the close corporation has fallen out of favor since California authorized the LLC. The LLC delivers nearly all of the same advantages, including the liability shield, operational flexibility, and partnership-style economics, without the 35-shareholder cap, without the rigid statutory framework, and with a more familiar operating agreement format.

S Corporations: A Tax Election, Not an Entity (S Corp) 

An S corp is not a separate entity type, but is instead, an election that is made under Subchapter S of the Internal Revenue Code. If the S corp election is timely made then the corporation can take advantage of the pass through taxation that is available for other entities like an LLC. California honors this election but still imposes a 1.5% entity-level tax, subject to an $800 minimum franchise tax.

To qualify, the corporation must have no more than 100 shareholders, and those shareholders must be U.S. individuals, certain trusts, and estates. Finally, there can only be one type of stock issued by the corporation. The stock issued can still have differences in voting rights, however, there cannot be different economic rights assigned.

When the election is made, founders of the company will need to pay themselves a reasonable salary that is subject to income taxes and then receive distributions that are free of the self-employment tax. The tax savings that come with the S corp election can be significant, so it is important to consult a tax professional to discuss the specifics of your situation.

While this may be an attractive option to limit tax liability, an S corp does not always make the most sense for businesses. For example, if the plan of the founders is to seek venture financing, then it is advisable that they do not make the S corp election so that they can issue preferred stock to investors.

When a California Founder Should Incorporate in Delaware

Why VCs Want Delaware 

Delaware is the go-to state for corporate filing for a number of different reasons. From a legal standpoint, corporate case law in Delaware is predictable and sophisticated. Further, the Delaware General Corporation Law (“DGCL”) offers flexibility on stock issuance, board structure, and indemnification.

From a practical standpoint, the VC industry has cemented Delaware as the go to state for any entities seeking financing from them. The standard VC forms commonly used (such as term sheets and investor’s rights agreement) were drafted with Delaware in mind. These forms are also routinely updated and have stood the test of time from a diligence standpoint. Using any other state to incorporate causes friction at every future financing round.

The California Catch: Section 2115

Any corporation that is incorporated in Delaware and conducts business within California will need to register as a foreign entity in the state. Founders should also be mindful of the “quasi-California” corporation statute which purports to apply portion of California corporate law onto foreign corporations. Corporations that are subject to this provision must have (i) more than 50% of property, payroll, and sales in California, and (ii) more than 50% of voting securities held by California residents. The quasi-California statute will have an impact on the rules for cumulative voting, class merger votes, director removal, distribution limits, and indemnification. So, it is important to meet with a qualified corporate attorney to advise on your specific situation.

When to Skip Delaware 

Not every business needs to be a Delaware corporation, and for a lot of California founders, incorporating in Delaware just adds cost and paperwork without delivering any real benefit. If you are running a local service business, a professional practice, a real estate holding company, or a lifestyle business that you have no intention of selling to investors, incorporating in California is almost always the right call.

However, it cannot be overstated that the decision to incorporate either in California or Delaware should be carefully considered. The process to reincorporate a corporation in Delaware is a relatively complex legal procedure that can incur significant legal fees.

Conclusion 

There is no universal right answer to the entity selection question. The right structure depends on three honest assessments: who is putting money into the business, who is running it day-to-day, and what the exit is realistically going to look like. A solo consultant in San Diego, a family-owned manufacturing business in the Inland Empire, and a venture-backed biotech in La Jolla will all arrive at different answers, and each can be the right answer for its respective context. What matters is that the choice is deliberate rather than the result of a template downloaded from the internet or a recommendation passed along from someone whose business looks nothing like yours.

If you are at the entity-selection stage and want a second set of eyes on the decision before you file, that is exactly the kind of conversation that is worth having with corporate counsel up front, when changes are cheap, rather than after you have already committed to a structure.