Why US Businesses Outsource HR
US employment law is complex with federal, state, and local regulations that frequently change. From the FLSA to the ACA, FMLA, and state-specific employment laws, staying compliant requires specialist knowledge. Outsourcing HR through PEOs or HROs allows businesses to access expert support — typically saving 25–45% compared to building an in-house HR department.
What to Look For in a US HR Provider
When evaluating US HR outsourcing partners, prioritise these capabilities.
- Multi-state compliance — If you have employees in multiple states, your provider must understand varying employment laws, tax requirements, and benefit mandates.
- Benefits administration — ACA compliance, health insurance plan management, 401(k) administration, and open enrolment support are critical.
- PEO vs HRO model — PEOs become your co-employer (sharing liability), while HROs provide services without co-employment. Understand which model suits your needs.
- Workers' Comp management — Your provider should help secure competitive rates and manage claims across all states where you operate.
- Technology platform — Look for self-service portals, mobile apps, and integration with popular accounting software like QuickBooks and ADP.
Pricing Models
US HR outsourcing typically costs $50–$200 per employee per month for HRO services, or 2–6% of payroll for PEO arrangements. PEO pricing includes the administrative fee plus pass-through costs for benefits, Workers' Comp, and payroll taxes. Per-employee pricing tends to be more predictable for budgeting.
Red Flags to Watch For
Avoid providers that lack IRS certification (CPEO status for PEOs), can't demonstrate multi-state compliance capabilities, have poor financial transparency, or lock you into multi-year contracts without clear exit terms. The best US HR providers are ESAC-accredited and offer transparent, itemised pricing.