TL;DR: Starting a business in California takes seven steps and about $890 in state fees in your first year: a $70 Articles of Organization filing, a $20 Statement of Information, and California's mandatory $800 annual franchise tax. When you’re ready to hire your first employee: California sits in the highest complexity tier for payroll compliance nationally, and new research puts the ongoing administrative workload at 82 minutes per hire, the most of any state in the country.
The 7 steps to legally start a business in California
1. Choose your business name
Check name availability through the California Secretary of State's Business Search tool before you file anything. If you plan to operate under a name different from your legal entity name (a "doing business as" name), you'll also need to file a Fictitious Business Name Statement with your county clerk.
2. Pick a business structure
Most startups choose between an LLC and a Delaware or California C-corp. If you plan to raise venture capital, a Delaware C-corp registered as a "foreign entity" doing business in California is the standard path, since most investors expect Delaware incorporation. If you're bootstrapping or building a smaller operating business, a California LLC is usually simpler and cheaper to maintain.
3. File your formation documents with the California Secretary of State
For an LLC, that means filing Articles of Organization ($70). For a corporation, it's Articles of Incorporation ($100). You can file both online through the Secretary of State's bizfile portal, and most filings process within a few business days.
4. Get an EIN from the IRS
Your Employer Identification Number is free and takes about 15 minutes to apply for online through the IRS. You'll need it to open a bank account, hire employees, and register for state taxes, so get it before you do anything else on this list.
5. Register for California state payroll taxes
The moment you pay more than $100 in wages during a calendar quarter, you're required to register with California's Employment Development Department (EDD). More on this below.
6. Apply for local licenses and permits
California doesn't require a single statewide business license, but nearly every city and county does. San Francisco, Los Angeles, and San Diego each have their own business tax registration, and certain industries (food service, contracting, healthcare) require additional state-level licenses. Check with your specific city's business portal.
7. Open a business bank account and get insured
Once you have your EIN and formation documents, open a dedicated business bank account. California also requires workers' compensation insurance the moment you hire even one employee, no exceptions for company size.
Registering for California payroll taxes
The moment you pay more than $100 in wages during a calendar quarter, you're required to register with California's Employment Development Department (EDD). Unlike some states that split payroll tax administration across multiple agencies, California bundles registration into a single form (DE 1) filed through the EDD's e-Services portal, which registers you for four programs at once:
- State Disability Insurance (SDI): 1.3% of wages, with no wage cap. This is withheld from employee pay, not paid by the employer.
- Paid Family Leave (PFL): Bundled with SDI at the same 1.3% rate.
- State Unemployment Insurance (SUI): 1.5% to 6.2%, with new employers starting at 3.4%, on the first $7,000 of wages per employee. This one is employer-paid.
- Employment Training Tax (ETT): 0.1% on the same $7,000 wage base, also employer-paid.
Founders coming from a single-state mindset are often surprised that this is just the state-level registration. You still need federal payroll tax setup, workers' comp coverage, and, if you're in a city like San Francisco, additional local requirements layered on top. Our California payroll taxes guide breaks down each rate and where to file it.
How much time California compliance costs founders
New research from Warp's multi-state payroll compliance time and cost analysis measured this directly by breaking down the actual administrative steps (registration portals, W-4 equivalents, new-hire reporting, workers' comp setup) and timing each one.
The findings put states into three complexity tiers based on what actually drives the workload: not tax rates, but the number and complexity of local tax structures layered on top of state requirements.
- Tier 1 (9 states): No income tax. Alaska, Florida, Nevada, Texas, and Wyoming fall here, with the lightest ongoing workload.
- Tier 2 (27 states): Income tax with a standard state W-4 equivalent. Arizona, Illinois, and Massachusetts are typical examples.
- Tier 3 (14 states): Local taxes and overlapping programs stacked on top of state requirements. California sits here, alongside Ohio and Pennsylvania.
For California specifically, the analysis found:
- One-time employer registration: 3.1 to 4.2 hours, in line with the national range of 3 to 8 hours across all fifty states.
- Per-hire ongoing workload: 82 minutes. That's the highest of any state measured, more than double the national average of 38 minutes per hire, and it repeats with every single employee you add, every year.
If you're planning to hire a handful of people in your first year in California, that's several hours of pure compliance administration before you've built anything, and it compounds as your team grows. However, payroll software like Warp can help ease this burden.
California rules that catch new founders off guard
- Worker classification is stricter here than almost anywhere else. California uses the "ABC test" to determine whether someone is a contractor or an employee, and it's more restrictive than the federal standard. Get it wrong and the penalties are steep: California can levy fines of $5,000 to $25,000 per misclassified worker, on top of whatever the IRS assesses in back taxes and penalties. (20% of the civil penalties issued to corporations in fiscal year 2025 were due to payroll compliance issues.) If you're using contractors in your early days to stay lean, this is worth getting a real answer on before you scale it.
- Workers' compensation insurance is mandatory from employee number one. California has no small-business exemption.
- Minimum wage is higher than the federal rate and keeps climbing. California's state minimum wage rose to $16.90 per hour on January 1, 2026, and many cities, including San Francisco and parts of Los Angeles County, set their own local minimums above that.
- The paperwork doesn't stop after your first filing. Once you're registered with the EDD, you'll file quarterly wage and withholding reports (DE 9 and DE 9C) even in quarters with no payroll activity, and your Statement of Information comes due again every two years regardless of whether anything about your business has changed. Miss a quarterly filing, and the EDD issues a notice, which then becomes its own task to resolve.
- BOI reporting is no longer a startup requirement. Older guides (and even some recent ones) still warn founders about federal Beneficial Ownership Information reporting under the Corporate Transparency Act. That requirement has been eliminated for domestic companies: FinCEN's final rule, effective August 2026, states that "no domestic entity, regardless of size, structure, or ownership, has any obligation to file initial, updated, or corrected BOI reports." If you're a US-formed entity, you can cross this one off your list entirely.
What it costs to start a business in California
For an LLC, budget roughly $890 in your first year:
- $70 Articles of Organization filing fee
- $20 Statement of Information, due within 90 days of formation and every two years after
- $800 annual franchise tax, which applies from year one with no exemption (California removed the first-year waiver starting in 2024)
That's before local business licenses, registered agent fees if you use one, and any industry-specific permits. And it doesn't include the ongoing cost of payroll administration once you're running a team.
How Warp helps California founders
Warp is the only AI-native HR & Payroll platform built for ambitious companies. Instead of clicking through clunky dashboards or .gov websites for taxes, Warp's AI agents open every state tax account, file every payroll form, and resolve every tax notice, automatically.
Every company gets a dedicated Account Manager and Benefits Advisor included to guide them through payroll setup, multi-state expansion, and benefits selection, so you don't have to spend hours on hold with tax agencies or worry about compliance mistakes.
With Warp, you'll never visit a government website, negotiate with tax agencies, or pay accountants $150 per filing. Just focus on building your business while Warp handles payroll, compliance, and benefits for your team across any state or country.
Thousands of fast-growing startups trust Warp to stay compliant while they scale. For California founders specifically, that means EDD registration, SDI and SUI filings, workers' comp coordination, and new-hire reporting are handled automatically instead of eating 82 minutes of your time per hire.
Ready to see what payroll setup actually looks like? You can explore Warp for startups or read our step-by-step guide to setting up payroll in nine steps.
FAQ
How much does it cost to start a business in California?
Expect around $890 in state fees for your first year as an LLC: $70 to file Articles of Organization, $20 for your initial Statement of Information, and California's $800 annual franchise tax, which applies from year one with no first-year waiver. Add local business license fees and any industry-specific permits on top of that.
Do I need a business license to operate in California?
California doesn't issue a single statewide business license, but most cities and counties require their own local business tax registration. Check with the city where your business operates, since requirements and fees vary significantly by location.
What's the difference between forming an LLC and a corporation in California?
An LLC is generally simpler to maintain and offers more flexible tax treatment, making it a common choice for smaller operating businesses. A corporation, often a Delaware C-corp registered to do business in California, is the standard structure for startups planning to raise venture capital, since most investors expect that structure.
When do I need to register for California payroll taxes?
As soon as you pay more than $100 in wages during a calendar quarter, you're required to register with the Employment Development Department (EDD). This single registration covers State Disability Insurance, Paid Family Leave, State Unemployment Insurance, and the Employment Training Tax.
Is workers' compensation insurance required for a single employee in California?
Yes. California requires workers' compensation coverage from the moment you hire your first employee, regardless of company size.
