Reference
How much does a PEO cost?
The short answer
PEO administrative fees are quoted either as a percentage of gross payroll or as a flat per-employee-per-month amount, and the two do not compare without modelling both against a full year of your real payroll. The larger variable is what sits inside the fee: some providers bundle workers’ compensation, state unemployment and benefit costs into a blended rate, others pass them through separately. For most mid-market employers the administrative fee is not the decisive number — benefit plan cost, comp modifier treatment and unemployment rate handling move considerably more.
Two fee structures that do not compare cleanly
A percentage of gross payroll scales with your wage base, which means raises, overtime and bonus cycles all increase the fee without increasing the administrative work behind it. A per-employee-per-month figure scales with headcount, which tracks the actual load more honestly but can look worse for an employer with low average wages.
Neither is inherently better. What matters is that a proposal quoted one way and a proposal quoted the other are not comparable until both are modelled against your actual payroll across a full year — including seasonality, overtime patterns and any bonus cycle. That modelling is arithmetic, not judgment, and it is skipped surprisingly often.
Bundled versus pass-through: the bigger variable
Some providers quote a blended rate with workers’ compensation, state unemployment insurance and benefit cost inside it. Others quote a thin administrative fee and pass those through at cost. A bundled rate looks expensive beside a thin one that is quietly excluding the largest line items on the page.
Normalize every proposal onto the same basis before looking at a single number. That means listing every cost component, marking which are included and which are not, and rebuilding all proposals to include everything. Proposals that survive that exercise unchanged are rare.
Where the money actually moves
The administrative fee attracts most of the attention and moves the least money. Benefit plan cost is usually the largest line by a wide margin. Workers’ compensation modifier treatment matters enormously in shift-based and physical industries. State unemployment rate handling — whether your experience rating follows you or is absorbed into a pooled rate — can move more than the entire admin fee in either direction.
A provider who saves you two points on administration and moves you into a health plan costing six percent more has left you materially worse off, and no proposal will state that anywhere on it.
Why this page does not publish a range
A credible figure depends on your industry, your state mix, your claims history, your wage distribution and your headcount. A number that ignores those is worse than no number, because it anchors the conversation somewhere arbitrary and every subsequent quote gets read against it.
Published ranges exist elsewhere and they are wide enough to be useless for a decision. What is worth doing instead is modelling your own situation against real market quotes, normalized onto one basis, and understanding what drives the spread. That is a few weeks of work and it produces a number that means something.
The cost nobody quotes
Exit. Leaving means re-establishing payroll under your own FEIN, standing up benefit plans mid-year, re-underwriting workers’ compensation, and potentially restarting Social Security and FUTA wage bases for every employee depending on the provider’s certification status and how the transition is structured. Ask for that figure during the entry analysis. Providers can answer it, and the willingness to answer is itself informative.
| Component | Typically quoted | Moves the total |
|---|---|---|
| Administrative fee (% or PEPM) | Always | Least of these |
| Health and ancillary benefit cost | Sometimes bundled | Most |
| Workers’ compensation premium | Sometimes bundled | High in physical industries |
| State unemployment insurance | Often unclear | High, and easy to miss |
| Implementation / setup | Sometimes waived | One-off |
| Exit and wage-base restart | Almost never | High, and discovered late |
Common questions
Is a percentage of payroll or a PEPM fee better?
Will a PEO definitely save us money?
What is a reasonable administrative fee?
Are the setup costs negotiable?
Where this sits
This page supports PEO / ASO Advisory — the practice that does this work.
