What Is a PEO? A Guide for California Employers

PEO stands for Professional Employer Organization. A PEO partners with businesses to share employer responsibilities through a co-employment relationship, handling HR administration, payroll, benefits, workers' compensation, and compliance while you maintain day-to-day control of your employees.

In a PEO co-employment relationship, the PEO becomes the employer of record for tax and benefits purposes while you remain the worksite employer responsible for day-to-day operations. Both parties share employer responsibilities and liability. This allows you to access enterprise benefits, reduce compliance risk, and get expert HR support.

A full-service PEO provides: payroll processing and tax filings, benefits administration (health, dental, vision, retirement), workers' compensation coverage, California compliance monitoring and updates, employee onboarding and offboarding, HR policies and handbook development, employee training including California-mandated courses, and ongoing HR support from a dedicated partner.

California PEO pricing typically ranges from $150-$300 per employee per month or 3-15% of payroll. The cost depends on your industry, headcount, and selected benefits. Many businesses find PEO total cost comparable to in-house HR when factoring in salary, benefits savings, software, and risk reduction.

PEO works well for California businesses that want liability protection through co-employment, need access to enterprise benefits at group rates, have compliance concerns in this heavily regulated state, want a dedicated HR partner, or are growing and need scalable HR infrastructure. Take our HR Risk Score for a personalized recommendation.

A staffing agency supplies workers who are their employees, not yours. With a PEO, your existing employees become co-employed—you hire them, manage them daily, and make all business decisions. The PEO handles HR administration and shares employer liability, but the workers are still fundamentally your team.