Payroll setup is a one-time project that builds the foundation. Ongoing payroll processing is the recurring work that happens every pay period after that foundation is in place. They require different effort, different knowledge, and different costs.

Setup covers everything that needs to happen before you can legally pay your first employee in California. That means registering with the EDD (Employment Development Division) to get your state employer account number, obtaining a workers’ compensation insurance policy (required before you hire anyone in California), and configuring your payroll software. You also need to collect W-4s and I-9s from each employee, input their information into the system, set up your federal and state tax deposit accounts, and establish your pay schedule. The withholding calculations need to be correct for federal income tax, Social Security, Medicare, California PIT, and SDI. If you’re using Orange County small business bookkeeping services, your bookkeeper can coordinate with your payroll system to make sure everything flows into your books correctly from day one.

Getting the setup wrong creates problems that multiply with every pay period. Incorrect withholding means your employees get surprise tax bills in April. A missing EDD registration means penalties start accumulating before you even realize there’s an issue. A misconfigured pay schedule throws off your tax deposit timing.

Ongoing processing is what happens every time you run payroll after the initial setup is complete. Each pay period, you enter hours worked or salary amounts and the system calculates all withholdings. Payments go out through direct deposit or physical checks. You generate pay stubs for every employee. Federal payroll tax deposits happen on a schedule determined by your total tax liability, either semi-weekly or monthly. California requires quarterly filings with the EDD using Forms DE 9 and DE 9C. At year end, you prepare and distribute W-2s to all employees and file them with the Social Security Administration.

There’s also the reconciliation side. Every pay run needs to be recorded in your general ledger so your payroll expenses, tax liabilities, and bank transactions all match up. Skipping this step means your financial statements are wrong and you won’t catch errors until they’ve become expensive to fix.

The setup is typically a flat, one-time cost. You do it once, do it right, and it doesn’t need to be repeated unless you switch payroll providers or your business structure changes significantly. Ongoing processing is a recurring cost that continues as long as you have employees on the payroll.

Some business owners handle the setup themselves and then outsource the ongoing processing because the recurring compliance burden is where mistakes get costly fast. Others want professional help with setup to make sure the foundation is solid, then run payroll on their own using the system that was configured for them. Both approaches work as long as the setup is done correctly in the first place.

If you already have employees but your payroll feels disorganized, the issue is usually the setup. A properly configured system makes full-service payroll processing straightforward. A poorly configured one turns every pay period into a guessing game about whether taxes are being calculated and deposited correctly.