How Many Employees Do You Need for a PEO?
Most PEOs work with employers from around five employees upward, and a few accept one - but the better question is not who accepts you, it is the size at which a PEO pays for itself. Below roughly ten employees, a payroll service is usually the cheaper tool.
Minimums vary more than you expect
There is no industry-wide floor. National providers commonly start around five employees; several mid-market players prefer ten to twenty-five; a handful accept single-digit shops. Justworks publicly prices from two. Minimums exist because onboarding, benefits enrollment and workers comp placement carry fixed cost the provider must amortize.
| Your size | Typical fit |
|---|---|
| 1-4 | Payroll service; PEO rarely economical |
| 5-24 | Prime PEO territory |
| 25-100 | PEO vs building internal HR - real decision |
| 100+ | Enterprise PEO tiers or in-house |
The real threshold is economic, not contractual
A provider will happily take your three employees if you pay enough. Run the comparison honestly: price your own admin (salary plus software) against the all-in PEPM fee including hidden fees. The crossover usually lands between ten and thirty employees depending on benefits ambition and state spread.
Two factors pull the threshold lower: expensive industries where group benefits access alone saves money, and multistate footprints where compliance machinery dominates - see multistate administration.
Questions to ask about minimums
- Is there a written employee minimum, monthly minimum bill, or both?
- What happens to my rates if headcount drops below the floor mid-term?
- Do part-time and seasonal staff count toward the minimum?
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Frequently asked
Will a PEO take a company with 2 employees?
Some will, especially transparent-priced platforms. The honest question is whether the fee beats doing it yourself - below five it rarely does.
Do I pay per employee or a minimum?
Often both: a PEPM rate plus a monthly floor. Ask what applies in slow months.
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