Sole Proprietorship in California: How It Works (2026)

Q: Do I have to register a sole proprietorship in California?

No. California has no state registration that creates a sole proprietorship, and the Secretary of State does not register them. You may still need a county fictitious business name statement if you trade under a name other than your surname, a free CDTFA seller's permit if you sell goods, and a city or county business license.

Q: Do I need a DBA for a California sole proprietorship?

Only if the business name does not contain your own surname. In that case you file a fictitious business name statement with the county clerk of your principal place of business, publish it in a newspaper of general circulation once a week for four successive weeks, and file an affidavit of publication within 30 days of the last publication.

Q: How much does a California seller's permit cost?

Nothing. The California Department of Tax and Fee Administration charges no fee for a seller's permit. Depending on your type of business and expected taxable sales, CDTFA may ask for a security deposit, but the permit itself is free and is issued through CDTFA's online registration service.

Q: Does a California sole proprietor pay the $800 franchise tax?

No. The $800 annual minimum franchise tax applies to LLCs, corporations, and limited partnerships registered with the state. A sole proprietor who has not formed an entity does not owe it. Sole proprietors report business profit on Schedule C with their personal Form 1040 instead.

Q: Does a sole proprietor in California need an EIN?

Not if you have no employees and no excise tax obligations - you may use your Social Security number. Many owners get one anyway so an SSN is not printed on W-9 forms. Hiring an employee makes an EIN mandatory. The IRS issues EINs free; never pay a third party for one.

Fact-checked by the LegalGlass editorial team against primary sources · Published Aug 20, 2026 · Last updated Aug 20, 2026

A California sole proprietorship requires no formation filing with the Secretary of State - you are a sole proprietor the moment you start doing business alone. What California does require is a county fictitious business name statement if you trade under any name other than your own surname, plus a free CDTFA seller's permit if you sell tangible goods.

Quick Answer

State formation filing: None - no Secretary of State filing creates a sole proprietorship
DBA / FBN: Filed with the county clerk, not the state; publication required
Publication: Once a week for four successive weeks, then an affidavit
Seller's permit: Free from CDTFA if you sell tangible personal property
Employer registration: EDD, within 15 days of paying over $100 in wages in a quarter
Federal reporting: Schedule C with Form 1040, plus Schedule SE
Liability: Unlimited - no separation between owner and business

What a California Sole Proprietorship Is

A sole proprietorship is not an entity you create; it is the default legal status of one person doing business without forming anything else. There is no charter, no articles, and no separate legal person. California treats the business and the owner as the same taxpayer and the same legal party, which is why a sole proprietor signs contracts personally and is personally answerable for every business debt. Compare that with what an LLC is, where a filed document creates a distinct entity.

The practical consequence is liability. If the business is sued or cannot pay a supplier, the claimant can reach the owner's personal bank account, car, and - subject to California's homestead protections - home equity. Business insurance narrows that exposure but does not change the legal rule. Most California owners who take on employees, sign a commercial lease, or carry meaningful inventory eventually move to an LLC for exactly this reason. See single-member LLC in California for the closest one-owner alternative.

Nothing about being a sole proprietor is temporary or provisional. Millions of California consultants, freelancers, tradespeople, and online sellers operate this way for years. The status simply carries no liability shield and no separate tax return, and it cannot have more than one owner. Adding a second owner converts the business into a general partnership automatically, whether or not anyone signs a partnership agreement.

There Is No State Filing to Create One

The California Secretary of State registers corporations, LLCs, and limited partnerships. It does not register sole proprietorships, and it maintains no statewide registry of fictitious business names. The Secretary of State's own business-entity FAQ says plainly that there is no provision in California for registration of fictitious business names in a central state registry, and directs owners to the city or county clerk or recorder where the principal place of business sits.

This surprises people who expect a "register my sole proprietorship" button. There is none. What exists instead is a stack of situational registrations: a county name filing, a state tax permit, local licenses, and - only if you hire - an employer payroll account. Each is triggered by something you do, not by the act of being in business.

One more thing California does not charge a sole proprietor: the $800 annual franchise tax. That minimum applies to LLCs, corporations, and limited partnerships registered with the state. A sole proprietor who never forms an entity never owes it, which is the single largest ongoing cost difference between the two structures. Details on the entity side are in California LLC cost and California LLC tax filing.

Fictitious Business Name (DBA) Registration

If you do business under any name that does not contain your own surname, California requires a fictitious business name statement - the state's term for a DBA - filed with the county clerk of the county where your principal place of business is located. "Maria Reyes Bookkeeping" generally needs no filing because it contains the owner's surname; "Bayside Bookkeeping" does. The filing is a public-notice mechanism so customers and creditors can identify who actually stands behind a trade name.

California adds a publication step that most states do not have. Within 30 days after filing the statement, you must publish it in a newspaper of general circulation in that county once a week for four successive weeks. Within 30 days after the last publication date, you file an affidavit of publication with the county clerk. Fees vary by county and by newspaper, so confirm both with your county clerk before budgeting. Background on the concept is in what a DBA is, and the California entity-side process is covered in California DBA filing.

A fictitious business name statement is not a trademark. It stops nobody else from using a similar name in another county or in commerce generally. If the name matters to your business, read how to trademark a business name in California and the national trademark guide. Before you commit, search existing entity names through the California business entity search as well.

Seller's Permit and CDTFA Registration

If you sell or lease tangible personal property that would ordinarily be subject to sales tax, you must hold a seller's permit from the California Department of Tax and Fee Administration (CDTFA). This applies whether the business is a sole proprietorship, an LLC, or a corporation, and whether sales are permanent or temporary. CDTFA states that there is no charge for a seller's permit, although depending on the business type and expected taxable sales, CDTFA may require a security deposit.

Registration is done online through CDTFA's registration service, which walks you through the other permits and licenses your activity may require - fuel, cannabis, tobacco, lumber, and similar special taxes each have their own account. Services that do not involve tangible goods usually need no seller's permit at all, which is why many California consultants and freelancers have no CDTFA account.

Local Business Licenses and Permits

California has no single statewide general business license. Licensing is local: most cities and counties require a business license or business tax certificate to operate within their limits, and the rules, fees, and renewal cycles are set city by city. Home-based businesses often need a home occupation permit on top of the license. Regulated trades - contractors, cosmetologists, real estate agents, health practitioners - are licensed by their own state boards regardless of business structure. The state's CalGold permit-assistance tool lets you enter a city and business type and returns the specific agencies involved. See the national business license overview and how to get a business license in California.

Federal and California Taxes for a Sole Proprietor

A sole proprietor files no separate business return. Business income and expenses go on Schedule C attached to the owner's Form 1040, and net profit flows to the owner's personal return. Self-employment tax on that net profit is computed on Schedule SE. Because no employer withholds anything, most sole proprietors make quarterly estimated payments to the IRS and to the Franchise Tax Board. Our self-employment tax calculator and self-employment tax in California page cover the arithmetic.

For California income tax, the same Schedule C profit lands on the owner's California personal return; there is no separate business filing and no entity-level minimum tax. An EIN is optional for a sole proprietor with no employees - you may use your Social Security number - but the IRS issues EINs free, and many owners get one anyway to avoid printing an SSN on W-9 forms. See how to get an EIN in California. Never pay a third party for an EIN.

Keep business and personal money separate even without a legal requirement to do so. A dedicated business checking account under the DBA name makes Schedule C defensible in an audit, simplifies quarterly estimates, and is the habit you will already need if you later form an LLC.

Hiring Employees and EDD Registration

A sole proprietor may hire employees. Doing so triggers registration with the California Employment Development Department (EDD). EDD requires an employer to register for a payroll tax account within 15 days of paying more than $100 in wages in a calendar quarter. From that point you withhold and remit state payroll taxes, file quarterly wage reports, and carry workers' compensation insurance. Federal employment tax obligations attach at the same time, and the EIN stops being optional.

When to Convert to an LLC

The usual trigger for converting is risk, not revenue. Signing a multi-year lease, hiring, taking on inventory, working on customer premises, or serving clients who demand an entity on the contract all argue for an LLC. The trade-off in California is concrete: forming an LLC means Secretary of State filings, a California registered agent, a California operating agreement, annual statements of information, and the $800 annual franchise tax floor. See how to form an LLC in California and California articles of organization for the mechanics, and S-corp vs LLC once profit is large enough that payroll tax planning matters.

Converting is not complicated. You form the LLC, move contracts, bank accounts, permits, and the fictitious business name over to the new entity, and stop transacting personally. Note that a DBA held by a sole proprietor is not automatically transferred to an LLC - the county filing generally has to be redone in the LLC's name. Closing later is covered in how to dissolve an LLC in California. If you never form an entity, winding down a sole proprietorship is mostly a matter of cancelling permits, filing a final Schedule C, and letting the fictitious business name lapse or filing an abandonment with the county clerk.

Frequently Asked Questions

Do I have to register a sole proprietorship in California?

No. No state registration creates one. You may still need a county fictitious business name statement, a free CDTFA seller's permit if you sell goods, and a local business license.

Do I need a DBA for a California sole proprietorship?

Only if the name does not contain your surname. File with the county clerk, publish once a week for four successive weeks, then file an affidavit of publication.

How much does a California seller's permit cost?

Nothing. CDTFA charges no fee for a seller's permit, though it may require a security deposit depending on your business and expected taxable sales.

Does a California sole proprietor pay the $800 franchise tax?

No. That minimum applies to LLCs, corporations, and limited partnerships registered with the state, not to unincorporated sole proprietors.

Does a sole proprietor in California need an EIN?

Not with no employees - an SSN works. Hiring makes an EIN mandatory. The IRS issues EINs free.

When must a California sole proprietor register with EDD?

Within 15 days of paying more than $100 in wages in a calendar quarter.

Sources

California Secretary of State - Business Entities FAQs (no state registry of fictitious business names).
California Business Portal - Choose a Business Name (county FBN filing; four-week publication; affidavit).
CDTFA - Obtaining a Seller's Permit (no charge; possible security deposit).
CDTFA - Permits & Licenses.
CDTFA - Online Services: Registration.
California EDD - Am I Required to Register as an Employer? (15 days after $100 in quarterly wages).
California EDD - Employers: Payroll Tax Account Registration.
California Franchise Tax Board - Limited Liability Company ($800 annual tax applies to LLCs).
IRS - Sole Proprietorships.
IRS - About Schedule C (Form 1040).
IRS - About Schedule SE (Form 1040).
IRS - Get an Employer Identification Number (free EIN).

LegalGlass provides general information for educational purposes and is not legal advice, is not a law firm, and is not a substitute for advice from a licensed attorney or tax professional. Laws, fees, and thresholds change; confirm current requirements with the California Secretary of State, CDTFA, EDD, and your county clerk before acting.