Sole Proprietorship in California: Complete Guide (2026)
Sole Proprietorship in California: Complete Guide (2026)
A sole proprietorship is the simplest way to run a business in California. You do not file formation papers with the Secretary of State, you do not create a separate legal entity, and you become the owner as soon as you start operating. The tradeoff is that the business and you are the same legal person, so business debts and lawsuits can reach your personal assets. This guide covers what a sole proprietorship is, how to start one, how it is taxed, what hiring involves, and when an LLC is worth the extra filings and fees.
This content is informational, not legal or tax advice. Rules change, and your facts determine which rules apply. Consult a qualified attorney or CPA before choosing a business structure, especially if you have significant liability exposure, co-owners, or substantial income.
What a Sole Proprietorship Is
A sole proprietorship is a business owned and run by one person with no separate legal existence. If you run a freelance design practice, a one-person landscaping business, or an online shop under your own name with no partners and no entity filing, you are a sole proprietor.
That structure produces three consequences:
- No state entity filing. The Secretary of State takes no formation paperwork for a sole proprietorship. California also has no general statewide business license.
- Personal liability. If the business owes money or is sued, creditors can reach your personal savings, property, and other assets, not just assets used in the business.
- Income reports on your personal return. The business has no separate income tax return. You report its profit or loss on your own returns.
How to Start a Sole Proprietorship in California
Starting a sole proprietorship mostly means handling your business name, local tax, sales tax registration, and any license your trade requires. Work through these steps in order.
1. Choose and file your business name
If you operate under your own legal name, with your first name or initials and your surname, you need no filing. Anything more requires a Fictitious Business Name Statement, commonly called a DBA. That includes a name such as Lopez Consulting or Bay Street Plumbing, a made-up word, or a name with "& Associates" or "Company" that suggests other owners. The rule comes from Business and Professions Code 17900.
File the statement with the county clerk-recorder in the county of your principal place of business within 40 days of starting to use the name. Then publish it once a week for four weeks in a newspaper of general circulation in that county, starting within 45 days after filing. The filing expires after five years. The statutory filing fee starts at $10 plus $2 for each additional name or owner, but counties charge more in practice. The counties we checked charge from $23 to $90 for the filing, and publication is a separate cost. Confirm the current figures with your county clerk-recorder before you file. You can find the state rules on the Secretary of State fictitious business names page.
2. Check your city's business tax or registration
California has no general state business license, but most cities charge a local business tax or require a registration certificate. About 445 of the state's 483 cities report revenue from one. There is no common formula, so the amount and the method depend on the city. Counties generally license only regulated activities. Check your city's business tax office, and use CalGOLD to look up the permits that apply to your location and activity. Confirm your city's requirements before you open for business.
3. Get a seller's permit if you sell taxable goods
If you sell taxable goods, you register with the California Department of Tax and Fee Administration (CDTFA) for a seller's permit. The permit is free. It is not a business license, and it does not authorize you to work in a regulated trade. California's statewide base sales tax rate is 7.25%. With district taxes, city rates run from 7.25% to 11.75%, so confirm the rate for your location. When you buy goods to resell, you give your supplier a resale certificate. California does not require a specific form for it, but confirm the required content with the CDTFA. Apply through the CDTFA sales and use tax page.
4. Obtain licenses for a regulated trade
Regulated trades and professions require licenses from state agencies, not from the Secretary of State. Contractors must hold a license from the Contractors State License Board. The contractor license threshold is $1,000, so work on projects at or above that amount requires a license. Other occupations are licensed through boards under the Department of Consumer Affairs, and businesses that sell alcohol deal with the Department of Alcoholic Beverage Control (ABC). Identify the board or agency for your trade before you take on paid work.
5. Get an EIN if you need one
An Employer Identification Number (EIN) is issued free by the IRS. You need one if you hire employees. Otherwise, many sole proprietors use their Social Security number on business forms. An EIN keeps your Social Security number off vendor and client paperwork, so many owners get one anyway.
6. Open a separate business bank account
Keeping business and personal money separate is good practice for any sole proprietor. It does not change your legal liability, but it makes bookkeeping easier and gives you cleaner records at tax time and if a dispute arises.
Taxes for a California Sole Proprietor
Taxes are where the sole proprietorship is simplest, and where owners most often miscalculate.
Income tax
You report business income and expenses on Schedule C of your federal Form 1040. Your net profit flows to your personal return and is taxed at individual rates. You also report the business on your California return to the Franchise Tax Board. California personal income tax rates are graduated up to 12.3%, with an additional 1% mental health tax on taxable income above $1 million.
Self-employment tax
Net self-employment earnings of $400 or more are subject to self-employment tax, reported on Schedule SE. The rate is 15.3%: 12.4% for Social Security, up to the annual wage base, plus 2.9% for Medicare. The wage base changes from year to year, so check the Social Security Administration for the current figure before you estimate your tax.
No California franchise tax or LLC fee
A sole proprietorship pays no California franchise tax, no $800 minimum annual tax, and no LLC fee. Those charges apply to LLCs, limited partnerships, LLPs, and corporations. A sole proprietor also files no Statement of Information.
Estimated tax payments
Because no tax is withheld from self-employment income, you generally pay estimated tax during the year. California estimated payments use Form 540-ES. The due dates fall on April 15, June 15, September 15, and January 15. Check the Franchise Tax Board for the amounts and the penalty rules. Set aside money for both federal and state tax as you earn it, so the April payment does not catch you short.
Hiring Employees and Independent Contractors
Once you hire, you take on employer duties. The Employment Development Department (EDD) handles most of the registration and reporting.
- Register with the EDD within 15 days after you pay more than $100 in wages in a calendar quarter.
- Report each new hire to the EDD within 20 days using Form DE 34.
- Carry workers' compensation insurance. California requires coverage for employees.
- Confirm the minimum wage. The state minimum wage is $16.90 an hour in 2026 and $17.40 from January 1, 2027. Verify both figures before you set pay, and check whether your city or county sets a higher rate.
Paying independent contractors
Paying contractors creates its own reporting duty. When you must file a federal Form 1099 and you pay an individual, a sole proprietor, or a single-member LLC $600 or more, the EDD requires a DE 542 report within 20 days. The federal 1099 threshold rose to $2,000 for payments made after 2025, but the EDD still states $600. Check the current threshold with the IRS and EDD before you rely on either figure. Classify your workers carefully, because the contract label does not decide whether someone is a contractor or an employee.
Sole Proprietorship vs. LLC in California
The sole proprietor vs. LLC question in California usually comes down to whether liability protection is worth the recurring cost. An LLC separates most business debts from your personal assets. It does not protect you from your own wrongdoing, and it generally does not shield you from a personal guarantee you sign on a lease or loan. California does not allow a domestic series LLC, so you cannot create separate liability shields for each product line inside one LLC.
| Factor | Sole proprietorship | LLC |
|---|---|---|
| State filing | None | Articles of Organization (Form LLC-1), $70 |
| Ongoing report | None | Statement of Information (Form LLC-12), $20, due within 90 days of filing and every two years after; the FTB assesses a $250 penalty after a Secretary of State notice if it is missed |
| Minimum annual tax | None | $800, owed from the first year for LLCs organized or registered in 2024 to 2026; $400 in year one for a first taxable year beginning 2027 to 2029 under RTC 17941(g)(2), so confirm with the FTB |
| LLC fee | None | $900, $2,500, $6,000, or $11,790 once California-source total income reaches $250,000, $500,000, $1,000,000, or $5,000,000 |
| Liability | Personal, for all business debts | Generally limited to business debts, with exceptions such as your own wrongdoing and personal guarantees |
| Licensed professional services | Permitted where licensed | An LLC cannot render a licensed professional service; a professional corporation is used instead |
For a business earning $50,000 in profit, a sole proprietorship has no entity costs. An LLC adds the $70 filing fee, the $800 annual minimum tax, and about $10 a year in averaged Statement of Information fees, before any accountant or attorney fees. Once California-source income reaches $250,000, the LLC fee adds $900 a year on top of that.
To form an LLC, file Articles of Organization (Form LLC-1) through bizfile Online. The filing fee is $70. Online filings are normally processed within about 5 business days, and paper filings take 10 or more business days. Expedited options from the Secretary of State are $350 for 24-hour service, $750 for same-day service if received by 9:30 a.m., and $500 for 4-hour drop-off service, which requires precleared filings. If you want to hold a name while you prepare, reserve it for $10 for 60 days through the name availability page. Use the Franchise Tax Board's LLC tax guidance to plan the annual tax and fee before you file.
When an LLC is worth considering
An LLC makes more sense as your liability exposure grows. Consider one if you have employees, sign contracts with significant indemnity obligations, carry a large inventory, or expect substantial income. A sole proprietorship is often the right choice while revenue is small and risk is low, but revisit the decision each year as the business grows. A CPA can model the fees against your projected income, and an attorney can review your contracts and your personal guarantees.
Resources and Next Steps
Start with the Secretary of State's Business Programs Division for entity and name rules, and the CDTFA for sales tax registration. The California Small Business Development Center network offers advising for small businesses. Confirm every fee, deadline, and threshold in this guide with the agency that administers it before you act on it, since these figures change.