"Is a PEO worth it?" is really a math question, and the honest answer is that it depends on your numbers. A PEO (Professional Employer Organization) runs your payroll, benefits, and HR compliance under a co-employment arrangement, and it charges an admin fee to do it. It is worth it when the money you save across health benefits, HR staff time, workers' comp, and the outside HR services you no longer buy is larger than that fee. This guide gives you the documented averages, a worked ROI model at three company sizes, and an honest look at when the return goes negative. If you are new to the model, start with what a PEO is.

The short answer, in plain numbers

Independent research gives a clear starting point. NAPEO commissioned McBassi & Company to study PEO return on investment, and the headline figures are these (NAPEO/McBassi, 2019):

  • Average savings: $1,775 per employee per year
  • Average PEO admin cost: $1,395 per employee per year
  • Net benefit: about $380 per employee per year
  • ROI: 27.2%

Read that carefully, because it is easy to overstate. A 27.2% ROI means about $272 of net savings for every $1,000 spent on the admin fee, not a guaranteed windfall. NAPEO reports 27.2% as an average drawn from all PEO clients, not a median: it expects roughly half of prospective clients to see an ROI above 27.2% and half below (NAPEO/McBassi, 2019). Businesses with high health-benefit costs or heavy HR workloads tend to land above the line; businesses that already run lean HR tend to land below it.

Beyond the direct cost savings, NAPEO's later work found PEO clients grow employment about 4.3% a year versus 1.9% for comparable non-PEO firms, have roughly 12% lower turnover, and are about a third less likely to go out of business (NAPEO/McBassi, 2024). Lower turnover and lower compliance risk - a single wage-and-hour or misclassification mistake can cost tens of thousands of dollars - are real benefits, but they sit outside the five measured cost categories and are harder to put in a formula, so we treat them as upside rather than counting them in the ROI math below.

What you will pay

The admin fee comes in one of two models. A flat per-employee-per-month fee typically runs $40 to $160 per employee, with most small-to-mid employers between $100 and $150. Some PEOs instead charge a percentage of payroll, typically 2% to 12% of gross payroll, with most quotes between 3% and 5%; this model favours lower-wage teams and gets more expensive as salaries climb. These fees cover administration only; health insurance and workers' comp premiums are billed separately, usually at group rates lower than you would get alone. You can estimate your own number with our PEO cost calculator, and for the full breakdown see how much a PEO costs.

Where the savings come from

PEO savings are not one line item. NAPEO's ROI study measured them across five cost categories, and its per-employee breakdown shows where the average $1,775 in annual savings comes from (NAPEO/McBassi, 2019, White Paper #7, Figure 1):

  • Internal HR personnel costs - about $965 per employee per year (54%). This is the largest category, and the one owners feel first. A PEO takes over payroll, benefits enrollment, compliance paperwork, and routine employee questions. For an owner or a generalist doing that work today, the reclaimed time has a direct salary value: the median HR manager earns $140,030 a year and the median HR specialist $72,910 (BLS, May 2024), and total employer cost per employee averaged $47.30 an hour in the most recent data (BLS, Employer Costs for Employee Compensation). You can estimate your own hours with our time savings calculator.
  • Health benefits - about $654 per employee per year (37%), the second-largest category. A PEO pools your team with thousands of other employees to buy insurance as one large group, which typically lowers premiums on comparable coverage. For context, the average employer pays $9,325 a year for single coverage and $26,993 for family coverage (KFF, 2025), so even a modest percentage reduction is real money.
  • Other external HR expenditures - about $90 per employee per year (5%). Without a PEO, many businesses pay separately for payroll systems, benefits administration, and outside HR or compliance help. A PEO bundles these into the admin fee.
  • Workers' compensation - about $66 per employee per year (4%). PEOs run master policies that spread risk across their whole client base and invest in safety and claims management, which can lower your experience modification rate over time. The effect is largest for higher-risk trades such as construction, manufacturing, and healthcare.
  • Unemployment insurance - the study counted this as $0 per employee for lack of reliable data, but PEOs that manage and contest claims carefully can help hold your state unemployment (SUTA) rate down over time.

The four measured dollar figures sum to the $1,775 average, with unemployment insurance carried at $0 (NAPEO/McBassi, 2019).

A worked ROI model at three headcounts

Because most PEOs will not publish a rate, the most useful thing we can give you is a transparent model. The table below applies our PEO ROI calculator's own per-employee logic, NAPEO's average savings of $1,775 and average admin cost of $1,395 per employee per year, scaled across three common headcounts. These are modeled figures built from industry averages, not a quote or a promise, and your real return depends on the five factors above.

Modeled PEO ROI by headcount (industry averages)
Company sizeModeled annual savingsModeled annual admin costModeled net benefit
10 employees$17,750$13,950$3,800
25 employees$44,375$34,875$9,500
50 employees$88,750$69,750$19,000

Modeled at NAPEO's per-employee averages ($1,775 savings and $1,395 admin cost per employee per year; net $380; 27.2% ROI), scaled linearly by headcount (NAPEO/McBassi, 2019). A model built from averages, not a quote or a guaranteed result. Because per-employee savings and admin rates both vary with your industry, state, and current HR spend, treat this as a starting estimate and confirm with real proposals.

Two things to read into it. First, the ROI percentage is the same at every size in a pure-average model, so the table is really about the scale of the net benefit, not the rate. Second, the average hides wide variation: a higher-cost health market or a high workers' comp class code pushes your savings up, while lean existing HR pushes them down.

How to calculate your own PEO ROI

You do not need exact numbers; reasonable estimates get you close enough to decide.

  1. Estimate your PEO cost. Multiply your headcount by a per-employee fee (say $120 a month) or apply a payroll percentage. Ten employees at $120 is $14,400 a year.
  2. Estimate health insurance savings. Compare your current per-employee premium to a PEO group rate; a modest percentage reduction on a $9,325 single premium (KFF, 2025) adds up fast.
  3. Estimate HR time savings. Value the hours your team spends on payroll, benefits, and compliance today at their loaded salary cost (BLS employer-cost data is a good anchor).
  4. Estimate workers' comp savings. Ask providers for a quote against your industry class codes and claims history; savings vary widely.
  5. Subtract the cost from the savings. If the result is positive, the PEO typically pays for itself. Our PEO savings calculator runs this across all five categories.
Flowchart showing how to calculate PEO ROI in four steps. First calculate current HR costs, then estimate insurance savings, then get PEO pricing. If savings exceed the PEO cost, the ROI is positive and you should compare providers. If the cost exceeds savings, consider in-house HR or revisit as your team grows.
How to determine whether a PEO delivers positive ROI for your business.

Where the return is strongest

The average hides a lot of variation. The return tends to be strongest when:

  • You have no dedicated HR staff, so the reclaimed owner or generalist time is worth the most.
  • You are in a high-cost health insurance state, where group purchasing power moves the biggest number.
  • You are in a higher-risk industry such as construction, manufacturing, healthcare, or transportation, where workers' comp is a large share of labour cost.
  • You are hiring quickly, because onboarding and compliance load grow with every hire and a PEO scales with you.

When the ROI is negative

An honest answer has to include the cases where the math does not work. A PEO's return goes negative, or close to it, in a few clear situations.

  • You already run strong in-house HR. If you employ a capable HR team, use good payroll software, and already have competitive benefits through a broker, a PEO can duplicate what you pay for rather than replace it. This is common approaching and above ~150 to 200 employees, where building HR internally and negotiating your own insurance usually wins.
  • Your benefits costs are already low. The single biggest savings lever is group health purchasing. If your industry has naturally low premiums, or you offer minimal benefits, that lever is small and the fee may outweigh it.
  • You are very small or very low-risk. Below about 5 employees, per-employee minimums can swamp the group-buying savings. A single-state business with a clean claims history and low workers' comp rates sees a narrower insurance benefit, so the return leans entirely on HR time saved.
  • You would trigger early-termination costs. Many PEOs require 12 to 36-month terms. If your situation is uncertain, factor potential exit fees into the calculation; see our guide to PEO hidden fees.

The rule of thumb: a PEO earns its fee when benefits access, multi-state or high-risk compliance, and HR load are worth more than the per-employee cost. When none of those is true, the honest answer is that a PEO is not worth it, and you are better served by a payroll service or a direct hire.

The bottom line

For a typical business of about 10 to 150 employees, a PEO usually pays for itself: businesses typically see around a 27% ROI on the admin fee, driven mostly by group health savings, reclaimed HR time, and lower turnover (NAPEO/McBassi, 2019 and 2024). The return is strongest for companies with meaningful benefits spend, no dedicated HR team, or high workers' comp exposure, and it weakens or disappears for larger companies with strong in-house HR or already-low benefits costs. The only way to know your own number is to compare real proposals. You can browse providers in our PEO directory, or read how much a PEO costs first.

If you want to see what a PEO would return for your business, request a consultation and we will connect you with our independent broker, who compares proposals matched to your size, industry, and states. The consultation is free to you. If you sign through the broker, he shares part of his fee with us. Expect the review to take several business days, not minutes.

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