PEO vs ASO: choose the right HR model for your California business

ASO is typically less expensive as a percentage of payroll because it does not include co-employment, bundled workers’ compensation, or large-group benefits. PEO can reduce total labor cost when workers’ compensation and benefits savings offset the fee. Easeworks provides an HR Blueprint to show the actual math before you commit.

A PEO does not eliminate PAGA risk, but it can reduce exposure by implementing compliant timekeeping, wage statements, break policies, and documentation. California courts have held that PAGA claims can still be brought against the worksite employer. The best protection is a compliance-first HR system—available in PEO, ASO, and HRO models.

Yes. Many employers start with a PEO for maximum support and later transition to ASO as internal capacity grows. Easeworks offers both models, so the operating relationship can stay continuous while the legal structure changes.

ASO includes payroll processing, HR administration, and compliance support while you remain employer of record. HRO is strategic—fractional HR leadership, employee relations, and compliance advising—without taking over payroll or acting as any kind of employer.

Yes. In a PEO arrangement, employees are typically placed under the PEO’s workers’ compensation master policy. In ASO, you keep your own policy, though Easeworks can advise on audits and classification accuracy.