A Professional Employer Organization (PEO) can help companies simplify payroll, benefits administration, HR processes, and employment compliance through a co-employment model. For growing US businesses, this can reduce administrative pressure while providing access to more structured HR support.
But using a PEO effectively requires a clear understanding of which responsibilities remain with your company and which are handled by the PEO.
This guide explains how the PEO model works, where responsibilities are shared, and how businesses can retain operational control while reducing the administrative burden of workforce management.
What is inside this PEO guide?
Set your US workforce up for more scalable operations with a clear explanation of the co-employment model. This resource gives you a practical framework for understanding how a PEO supports payroll, benefits, HR administration, and compliance.
In this guide, you will learn:
- How co-employment divides certain employer responsibilities between your organization and the PEO
- Which responsibilities remain with your company, including employee supervision, performance, and workplace culture
- How PEOs can help smaller employers access broader health, retirement, and employee benefit options
- Key differences between PEOs and workforce models such as EOR, ASO, and HRO
- How PEO support can help organizations manage areas such as COBRA and ACA-related administration
- How workers’ compensation and employment-related risk management can fit within a PEO arrangement
Who is this guide for?
We designed this guide for leaders looking to simplify US workforce administration:
- Founders and business owners with a US legal entity who want to scale payroll and HR operations
- HR managers at growing companies facing increasing administrative complexity
- Finance teams evaluating payroll, benefits, and workforce administration costs
- Leaders in higher-risk industries looking for stronger workers' compensation processes
- Small businesses without a large internal HR function that need additional operational support
How a PEO partnership works
A PEO supports companies by taking responsibility for defined HR and employment administration activities. Under a co-employment arrangement, the PEO typically becomes the employer of record for certain tax and payroll purposes and may report employee wages using its own federal employer identification number (EIN). The specific division of responsibilities is documented in the client service agreement.
Your organization still maintains control over business operations and employees’ day-to-day work. You continue to decide who to hire, how roles are structured, how performance is managed, and how company culture develops.
Key benefits of the PEO model
Working with a PEO can provide several advantages for companies that want to scale without adding the same level of internal HR administration:
- Expand access to benefits: Offer more competitive medical, dental, vision, and retirement options through a broader benefits structure
- Support local compliance: Strengthen processes around applicable federal and state employment requirements
- Improve operational efficiency: Shift recurring tasks such as payroll processing and benefits administration away from internal teams
- Strengthen risk management: Receive support around workers’ compensation, unemployment matters, and other employment-related administrative requirements
How to use the professional employee organization guide
This resource is designed to help you evaluate whether a co-employment model is appropriate for your business. Here is how to apply the guidance:
- Confirm your entity structure: Verify that your business has the required legal entity in the location where the PEO will support employees
- Review workforce size: Determine whether your employee population meets the eligibility or minimum requirements of potential PEO providers
- Compare workforce models: Use the comparison framework to decide whether a PEO, ASO, or EOR better fits your current operating structure
- Plan implementation: Define how payroll, benefits, HR policies, employee records, and administrative responsibilities will transition
- Evaluate integrations: Review how payroll and HR processes will connect with your existing finance, accounting, and workforce systems
Pro Tip: If you plan to employ people in a country where you do not have a local entity, an EOR may provide a more suitable model for compliant international hiring.
PEO: A modern solution for US teams
A PEO can help US companies simplify payroll, benefits, and HR administration while retaining day-to-day control of their workforce. Komp helps organizations evaluate how PEO, EOR, payroll, contractor management, and other workforce models can fit within a more connected global workforce strategy.
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