How to Set Up Payroll in California: A Step-by-Step Guide

California payroll isn't like payroll anywhere else. Between state disability insurance, paid family leave, and employment training taxes, you're juggling more moving parts than most states require. Miss a filing deadline or use the wrong tax rate, and you're looking at penalties that add up fast.

If you're a small business owner hiring your first employee in California—or you're taking payroll in-house for the first time—this guide walks you through exactly what you need to do. We'll cover registration, tax withholding, filing requirements, and the compliance rules that keep you out of trouble with the state.

Let's break it down.

Quick steps to set up payroll in California (TL;DR)

Here's the fast version of what you need to do:

• Register for a Federal EIN with the IRS if you don't already have one.
• Create a CA EDD payroll tax account within 15 days of paying your first wages.
• Enroll in e-Services for Business to manage state tax payments and filings online.
• Collect employee tax forms including W-4, DE-4, and I-9 for every new hire.
• Choose how you'll run payroll—whether that's in-house calculations, payroll software, or a full-service provider.
• Calculate gross pay and withholdings including California's State Disability Insurance (SDI), Personal Income Tax (PIT), Unemployment Insurance (UI), and Employment Training Tax (ETT).
• Pay taxes on schedule using both federal forms (941, 940) and California forms (DE-9, DE-9C).
• Stay compliant with California's wage statement requirements, recordkeeping rules, and labor laws like rest breaks and paid sick leave.

Each step has specific deadlines and requirements. We'll walk through all of them below.

Step 1: Register with the IRS and California EDD

Before you can pay anyone, you need to register as an employer with both federal and state agencies.

Get your Federal Employer Identification Number (EIN)

Your EIN is your business's tax ID with the IRS. You need it to report payroll taxes and issue W-2s. If you don't have one yet, you can apply online in about 10 minutes. It's free, and you'll get your EIN immediately after completing the application.

Register with the California Employment Development Department (EDD)

California requires you to register for a payroll tax account within 15 days of paying more than $100 in wages in a calendar quarter. This registration covers four state taxes: Unemployment Insurance (UI), Employment Training Tax (ETT), State Disability Insurance (SDI), and California Personal Income Tax (PIT) withholding.

You'll register online through the EDD's e-Services for Business portal. The system will assign you an employer account number, which you'll use for all future filings and payments.

Missing this 15-day window can result in penalties, even if you haven't paid anyone yet. The clock starts when you pay that first paycheck.

Set up e-Services for Business

Once you're registered, enroll in e-Services for Business if you haven't already. This is where you'll file quarterly reports, make tax payments, and manage unemployment claims. California strongly encourages electronic filing and payment—and in many cases, it's required.

Check for local registration requirements

Some California cities have their own payroll taxes. San Francisco, for example, has a Gross Receipts Tax that includes payroll expense reporting. Check with your city's tax office to see if you need to register locally.

Get these registrations done before you run your first payroll. The paperwork takes time, and you can't file or pay taxes without your account numbers in place.

Step 2: Gather tax and employment forms

Every new hire needs to complete specific forms before their first paycheck. These documents tell you how much to withhold and verify they're legally allowed to work.

Federal Form W-4

The W-4 determines how much federal income tax you withhold from each paycheck. Employees claim allowances and filing status here. Make sure each employee completes a current version—the form changed significantly in 2020.

California Form DE 4

The DE 4 is California's state income tax withholding form. Employees can request additional withholding, but federal-style withholding allowances no longer apply under current guidelines. If an employee doesn't submit a DE 4, you'll withhold as if they claimed zero allowances—which usually means more tax taken out.

Form I-9 for employment eligibility

The I-9 verifies an employee is authorized to work in the United States. You must complete this form within three business days of their start date and keep it on file—but you don't submit it to any agency unless specifically requested during an audit.

Classify workers correctly

California has strict rules about who qualifies as an employee versus an independent contractor. If you're hiring contractors, they'll need a W-9 form instead, and you won't withhold taxes for them. Misclassifying employees as contractors is one of the most common—and expensive—payroll mistakes you can make in California.

Keeping these forms organized from day one saves headaches later. Tools like Homebase let your team e-sign and store payroll forms right in the app, so everything's in one place when you need it.

Step 3: Pick your payroll system and pay schedule

You've got three main options for running payroll: do it manually, use payroll software, or hire a full-service provider.

Manual payroll

This means calculating wages, withholdings, and taxes yourself using spreadsheets or payroll calculators. It's the cheapest option upfront, but it's time-intensive and leaves room for errors. You're also responsible for filing all tax forms and making payments on time.

Payroll software

Software automates the math and helps you stay on schedule. Most platforms calculate federal and California taxes, generate pay stubs, and remind you of filing deadlines. Some integrate with time tracking, so hours flow directly into payroll without manual entry.

Full-service payroll providers

These companies handle everything: calculations, tax filings, payments, and compliance updates. You approve payroll, and they take care of the rest. It costs more than software, but it's the lowest-effort option if you'd rather focus on running your business.

Set your pay schedule

California allows various pay schedules—including weekly, bi-weekly, and semi-monthly—as long as employees are paid on time under state labor laws. There’s no specific rule based on business size. You can choose weekly or bi-weekly schedules, but you need consistency. Employees must be paid within a certain number of days after the pay period ends, and you need to communicate the schedule clearly.

Running payroll from your phone isn't a fantasy anymore. Homebase lets you process payroll from anywhere—even if you're away from your desk—with automatic tax calculations and direct deposit built in.

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Step 4: Calculate wages and California payroll taxes

This is where California payroll gets detailed. You're not just calculating gross pay—you're withholding multiple state taxes on top of federal obligations.

Gross pay vs net pay

Start with gross pay: the total amount an employee earns before any deductions. This includes regular wages, overtime, bonuses, and commissions.

California overtime rules are strict. Employees must be paid 1.5x their regular rate for hours worked over 8 in a day or 40 in a week. They're also entitled to double time for hours worked over 12 in a single day. Track daily hours carefully—California calculates overtime differently than most states.

California payroll taxes you need to withhold

Here's what comes out of every paycheck:

• State Disability Insurance (SDI): Employees contribute a percentage of their wages—1.3% in 2026—up to the annual wage limit. This funds short-term disability and paid family leave benefits. 
• California Personal Income Tax (PIT): Withholding rates range from 1% to 12.3% depending on income level and what the employee claimed on their DE 4. Use the California withholding schedules published by the Franchise Tax Board.
• Federal Income Tax: Withhold based on the employee's W-4 using IRS Publication 15-T tables.
• Social Security and Medicare (FICA): You and the employee each pay 6.2% for Social Security (on wages up to $168,600 in 2024) and 1.45% for Medicare with no wage cap.

Employer-only payroll taxes in California

These don't come out of employee paychecks—you pay them separately:

• Unemployment Insurance (UI): This funds unemployment benefits for workers who lose their jobs. New employers are typically assigned a 3.4% rate on the first $7,000 of wages per employee, but this rate may change based on your industry and experience over time.Your rate adjusts annually based on your experience rating.
• Employment Training Tax (ETT): A flat 0.1% on the first $7,000 of wages per employee. This funds workforce training programs.

Calculating all of this manually is a recipe for mistakes. Payroll software handles the math automatically based on current California tax rates and federal guidelines. Homebase calculates hours, breaks, overtime, wages, and taxes based on your city, state, and federal labor laws—so you're not Googling tax rates at 10 p.m. on a Sunday.

Step 5: File and remit payroll taxes

Running the calculations is only half the job. You also need to report wages and pay taxes to the right agencies on time.

Federal tax forms and deadlines

Form 941: Quarterly federal tax return reporting income taxes, Social Security, and Medicare withheld. Due by the last day of the month following the quarter (April 30, July 31, October 31, January 31).

Form 940: Annual federal unemployment tax return (FUTA). Due January 31 for the prior year.

You'll also need to deposit withheld taxes electronically through EFTPS on either a monthly or semi-weekly schedule, depending on your total tax liability.

California state forms and deadlines

Form DE 9: Quarterly contribution return and report of wages. This reports UI, ETT, SDI, and PIT withheld. Due by the last day of the month following the quarter.

Form DE 9C: Quarterly contribution and wage report continuation. Lists individual employee wages and withholdings. Filed with DE 9.

California requires electronic filing and payment if you have more than $80,000 in state payroll tax liability or if you're newly registered. Use e-Services for Business to submit forms and pay taxes.

New hire reporting

You must report all new hires and rehires to the EDD within 20 days of their start date. This helps the state locate parents for child support enforcement and detect unemployment insurance fraud.

Missing a filing deadline or making a late payment triggers penalties that compound quickly. Homebase automatically submits new hire reporting and distributes W-2s and 1099s, so year-end stress becomes a non-issue.

Step 6: Follow state wage and recordkeeping laws

California doesn't just regulate payroll taxes. The state has strict rules about how you pay employees and what records you need to keep.

Wage statement requirements

Every pay period, you must provide employees with a detailed wage statement (pay stub). California law requires specific information on each statement:

• Gross wages earned
• Total hours worked (for non-exempt employees)
• All deductions
• Net wages
• Pay period dates
• Employee name and last four digits of SSN or employee ID
• Employer name and address

Penalties for non-compliant wage statements start at $50 per employee per pay period and can go up to $4,000 per employee. The state takes this seriously.

Record-keeping requirements

California requires you to keep detailed payroll records for at least three years. This includes time cards, wage statements, tax forms, and any documentation related to wage calculations.

You also need to track meal and rest breaks. California requires a 30-minute unpaid meal break for shifts over 5 hours and 10-minute paid rest breaks for every 4 hours worked. If employees don't take required breaks, you owe them an extra hour of pay at their regular rate.

Additional compliance areas

Beyond payroll, California requires:

• Paid sick leave (employees accrue at least 1 hour per 30 hours worked)
• Workers' compensation insurance for all employees
• Proper posting of labor law notices in the workplace

Homebase stores time card and payroll records in compliance with California regulations, so you're covered for audits without maintaining separate filing systems.

Step 7: What not to do when running payroll in CA

Even experienced employers make these mistakes. Here's what to avoid:

Misclassifying workers

Treating employees as independent contractors to avoid payroll taxes is illegal. California uses the ABC test under AB 5 to determine worker classification. Misclassification can result in back taxes, penalties, and liability for unpaid benefits.

Skipping new hire reporting

Failing to report new hires within 20 days may result in penalties, especially if the failure appears intentional. Check with the EDD for current fine structures. It's a simple form—just don't forget it.

Using outdated tax rates

California tax rates change annually. Using last year's rates on this year's payroll creates under-withholding issues that you'll need to correct—and potentially make up out of pocket.

Missing EDD filing deadlines

Late quarterly filings trigger penalties that increase the longer you wait. Set reminders or use a system that tracks deadlines for you.

Forgetting to document PTO and adjustments

California requires detailed records. If you give someone paid time off or adjust their pay for any reason, document it. When disputes arise, your records are your defense.

California payroll FAQs

What are payroll taxes in California?

California payroll taxes cover both state and federal obligations. Employees pay State Disability Insurance (1.1%), Personal Income Tax (1-12.3% based on income), Social Security (6.2%), and Medicare (1.45%). Employers pay Unemployment Insurance (3.4% for new employers), Employment Training Tax (0.1%), and match Social Security and Medicare contributions.

How much are employer payroll taxes in CA?

Employer payroll taxes vary depending on your UI rate and other factors. You’ll match employee Social Security (6.2%) and Medicare (1.45%) contributions, and pay California UI (typically 3.4% for new employers on the first $7,000 in wages) and ETT (0.1%). Your total cost depends on your actual UI rate and wage base.

Do I need payroll if I have one employee?

Yes. California requires payroll setup as soon as you pay anyone $100 or more. Register with the EDD within 15 days, withhold taxes, file quarterly reports, and follow wage laws. One employee gets the same treatment as 50—no exemptions for small businesses.

What is the California ETT tax?

Employment Training Tax funds workforce development programs. You pay 0.1% on the first $7,000 per employee annually—that's a maximum of $7 per employee. The rate never changes and you report it quarterly on Form DE 9.

Start payroll with confidence

California payroll has more moving parts than most states, but the steps are straightforward when you break them down: register with the right agencies, collect employee forms, calculate wages and taxes accurately, file reports on time, and keep detailed records.

The math isn't the hard part—it's staying on top of deadlines, tracking regulatory changes, and making sure nothing falls through the cracks when you're already running a business.

Looking for an easier way to handle California payroll? Homebase calculates taxes, handles filings, and keeps you compliant with state and federal laws—so you can stop Googling tax rates and get back to growing your team. Learn more about Homebase payroll.

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