When businesses evaluate a Professional Employer Organization (PEO), health insurance is often the biggest driver of the decision. PEOs pool employees across many client companies into a master health plan, giving small and mid-sized employers access to large-group pricing and richer benefits.
But what if you already have a strong health insurance plan—or want to keep your broker relationship? The question many CFOs and HR leaders ask is: “Can we carve out medical insurance and still use the PEO?”
✅ What Is a Medical Insurance Carve-Out?
A carve-out means separating medical insurance from the PEO bundle. In this scenario:
- The PEO still provides payroll, HR, compliance, and possibly ancillary benefits.
- But medical insurance remains with your existing broker or carrier arrangement.
✅ Do PEOs Allow It?
The short answer: Sometimes—but not always.
- Traditional PEO Model: Most PEOs are built around offering health insurance through their master plan. That’s where much of the cost savings and leverage comes from. Because of this, many PEOs make participation in their medical plan mandatory.
- Flexible PEOs: Some PEOs, especially smaller or boutique ones, may allow carve-outs—letting clients keep their own health plan while still leveraging the PEO for payroll, HR, and compliance.
- Ancillary Carve-Outs: Even when medical is mandatory, PEOs often allow carve-outs for ancillary benefits (dental, vision, life, disability, voluntary products).
✅ Pros of Carve-Out Flexibility
- Broker Relationships: You can keep working with a trusted benefits advisor.
- Specialized Plans: If your company already has a unique or union-negotiated plan, you won’t need to abandon it.
- Continuity: Employees avoid disruption if they’re happy with their current network or coverage.
⚠️ Cons of Carve-Outs
- Lost Leverage: You may miss out on the biggest cost savings PEOs deliver—large-group medical pricing.
- Reduced Integration: Payroll deductions, benefits enrollment, and ACA reporting are smoother when medical is bundled into the PEO platform.
- Limited PEO Options: Many of the largest PEOs (like ADP TotalSource, Insperity, and TriNet) require participation in their medical plans.
✅ When Carve-Outs Make the Most Sense
- Companies with favorable grandfathered medical plans they don’t want to lose.
- Unions or associations that already provide medical coverage.
- Employers in industries where employees expect specific carriers or networks not available through the PEO’s master plan.
🔑 Key Takeaway
Most PEOs require clients to use their medical insurance plan to maximize the value of the co-employment model. However, some PEOs offer carve-out flexibility, especially for companies with unique circumstances.
When evaluating a PEO, always ask:
- “Is your medical plan mandatory?”
- “Do you allow carve-outs?”
- “If we carve out medical, what services and benefits are still included?”
The right answer depends on your priorities: maximizing savings with the PEO’s master plan—or preserving flexibility with your own.