HR Administration
Complete employee lifecycle management from onboarding to offboarding
HR Model Comparison
PEO vs ASO vs HRO in California: Which Fits Your Risk + Cost?
Three proven HR models. One decision that impacts your liability, costs, and growth. Here's how California businesses choose.
Working brief
What this covers in California.
- 01
- PEO: Maximum protection through co-employment
- 02
- ASO: Full control with expert administration
- 03
- HRO: Strategic HR leadership on demand
- 04
- Get your HR Risk Score for a personalized recommendation
01 Serving California since 2000
02 500+ businesses trust Easeworks
03 Same-day callback guarantee
04 Dedicated HR Business Partner included
Operating scope
One accountable HR operating system.
Core responsibilities are coordinated around the same workforce, records, and compliance expectations.
Payroll Processing
Accurate, on-time payroll with tax filings and direct deposits
Compliance Monitoring
Real-time tracking of California employment law changes
Workers' Compensation
Coverage administration, claims management, and safety programs
Employee Training
California-mandated training including harassment prevention and SB 553
Benefits Administration
Health, dental, vision, and retirement plan management
California compliance file
The requirements do not manage themselves.
Easeworks helps employers build repeatable controls around the obligations that create recurring exposure.
PAGA Compliance
Proactive auditing to prevent costly Private Attorneys General Act claims before they happen
Wage & Hour Laws
California's complex overtime, meal break, and rest period requirements tracked and enforced
SB 553 Workplace Violence
Written prevention plans, training requirements, and incident logging as mandated by law
Harassment Prevention Training
AB 1825 and SB 1343 compliant training for supervisors and employees
Decision file
Compare the operating models.
The right structure depends on the work you want carried, the control you want to retain, and the exposure already present.
PEO (Professional Employer Organization)
Best for: Businesses wanting maximum liability protection and enterprise-level benefits
Advantages
- Co-employment shares HR liability with Easeworks
- Access Fortune 500 benefits at SMB prices
- Workers' comp under master policy (often lower rates)
- Strongest California compliance protection
- Full HR infrastructure included
Tradeoffs
- Employees are co-employed
- Less flexibility in benefits selection
- Typically higher cost than ASO
Decision triggers
- You've had an HR lawsuit, DOL audit, or PAGA claim
- You can't afford competitive benefits on your own
- High-risk industry or workforce
- Rapid growth requiring scalable HR
ASO (Administrative Services Organization)
Best for: Businesses wanting full control with expert support
Advantages
- Remain sole employer of record
- Keep your existing benefits and workers' comp
- Flexible, modular service packages
- Often lower cost than PEO
- Easy to scale into PEO later
Tradeoffs
- You retain all employer liability
- Benefits may cost more on your own
- Must manage relationships with multiple vendors
Decision triggers
- You have great benefits and want to keep them
- Control matters more than liability sharing
- Starting with HR outsourcing and want to scale
- Budget-conscious but need expert support
HRO (HR Outsourcing / Consulting)
Best for: Businesses with some HR capacity wanting strategic support
Advantages
- Fractional HR leadership without full-time cost
- Strategic guidance on complex issues
- Project-based or ongoing retainer options
- Works alongside your existing team
Tradeoffs
- Not a full HR replacement
- You still need administrative capacity
- Best paired with internal HR resources
Decision triggers
- You have HR staff but need senior expertise
- Facing a specific challenge (M&A, layoffs, investigation)
- Want to level up your HR function
- Need interim HR leadership
| Model | Best fit | Primary advantage | Primary tradeoff |
|---|---|---|---|
| PEO (Professional Employer Organization) | Businesses wanting maximum liability protection and enterprise-level benefits | Co-employment shares HR liability with Easeworks | Employees are co-employed |
| ASO (Administrative Services Organization) | Businesses wanting full control with expert support | Remain sole employer of record | You retain all employer liability |
| HRO (HR Outsourcing / Consulting) | Businesses with some HR capacity wanting strategic support | Fractional HR leadership without full-time cost | Not a full HR replacement |
Pricing context
Compare total operating cost, not one fee.
PEO
PEO pricing is typically structured as a percentage of payroll (3-15%) or per-employee-per-month fee ($150-$250+). This includes HR administration, benefits access, workers' comp, compliance monitoring, and dedicated support. Your actual cost depends on headcount, industry risk classification, and benefits selection. Many California businesses find PEO total cost competitive when factoring in benefits savings and reduced liability.
ASO
ASO pricing is usually a flat per-employee-per-month fee ranging from $50-$150 depending on services included. This covers HR administration, payroll processing, compliance monitoring, and access to your HR Business Partner. You maintain your own benefits and workers' comp policies, so your total cost is the ASO fee plus your existing insurance costs. ASO often has the lowest upfront cost.
HRO
HRO/HR consulting is typically structured as a monthly retainer based on hours and expertise level needed. Strategic HR consulting might range from $2,000-$10,000+ per month depending on scope. This works well for businesses with some HR capacity who need expert guidance on complex California employment issues, executive coaching, or interim leadership.
Frequently asked
Questions from employers.
01Which HR model is best for California businesses?
It depends on your priorities. PEO offers maximum protection through co-employment and enterprise benefits. ASO gives you control while providing expert administration. HRO adds strategic expertise to your existing team. Take our HR Risk Score for a personalized recommendation based on your specific situation.
02How does California law affect the choice between PEO and ASO?
California's complex employment laws (PAGA, wage and hour, harassment prevention, SB 553) make compliance critical for any business. PEO provides the strongest protection because liability is shared through co-employment. ASO provides expert guidance but you retain all liability. Either way, you need a partner who deeply understands California law.
03Can I switch between PEO, ASO, and HRO?
Yes. Many businesses evolve their HR model as they grow. A startup might begin with HRO consulting, move to ASO for administration, then graduate to PEO for enterprise benefits. A company that acquires good benefits might move from PEO to ASO. We make transitions seamless.
04What's included in each pricing model?
PEO includes everything: HR admin, payroll, benefits, workers' comp, compliance, and support. ASO includes HR admin, payroll, compliance, and support—you provide your own benefits and workers' comp. HRO is strategic consulting that can include policy development, investigations, M&A support, or ongoing HR leadership.
05How do I know which model is right for my business?
Start with our HR Risk Score. In 5 minutes, you'll answer questions about your business, and we'll provide a recommendation with an HR Blueprint comparing your current costs to each model. Then schedule a strategy call to discuss specifics with an expert.
Related files
Continue the comparison.
Cost comparison request
Start with the current employer file.
Tell us how the company is structured today. We will confirm the details and explain what is needed to build a useful PEO comparison.
- 01 Confirm workforce and operating details
- 02 Review payroll, benefits, and workers’ compensation inputs
- 03 Map current costs and responsibilities beside the PEO model
Request received
We have the first page of the file.
An Easeworks specialist will follow up to confirm the details and explain the comparison process.
Prefer to talk now? Call (888) 843-0880.Next step
You do not need to diagnose the model first.
Start with the current HR file. We will identify the gaps, compare the options, and help you choose a practical structure for California.