PEO pricing is one of the most confusing parts of the evaluation process — and PEOs count on that. Proposals often mix administrative fees with benefits pass-throughs in ways that make apples-to-apples comparison difficult. This guide cuts through that.

By the end you will understand exactly how PEOs charge, what fair market rates look like for a company your size, and which line items are worth pushing back on.

The two pricing models

Every PEO uses one of two administrative fee structures:

1. PEPM — Per Employee Per Month

A flat monthly fee per employee, regardless of what that employee earns. If you have 30 employees and your PEPM is $150, your monthly administrative fee is $4,500.

Advantages: Predictable. Easy to budget. Adding a high-paid employee costs the same as adding an entry-level one. Works well when your team has a wide salary range.

Watch for: Some PEOs quote a low PEPM and then add fees for payroll processing, onboarding, or off-cycle payrolls separately. Always ask for the all-in PEPM number.

2. Percentage of Gross Payroll

A percentage of your total payroll spend. If your monthly payroll is $200,000 and the rate is 3%, your administrative fee is $6,000.

Advantages: Cost scales with your payroll. If your team is lean, your cost is lean. Can work well for companies with consistent payroll.

Watch for: If you hire higher-paid employees or give raises, your PEO fee goes up automatically — even though the PEO's work does not increase proportionally. On high-payroll companies this model gets expensive fast.

What are fair market rates?

These are current market benchmarks. What you actually pay depends on your industry, headcount, workers comp risk class, and negotiating leverage:

Company SizePEPM Range% of Payroll Range
5-15 employees$150 – $250 PEPM4% – 10%
16-50 employees$120 – $200 PEPM3% – 7%
51-100 employees$100 – $160 PEPM2.5% – 5%
101-150 employees$80 – $140 PEPM2% – 4%

Critical context: These are administrative fees only. They do not include the cost of health insurance, dental, vision, 401(k), or workers comp. Benefits costs pass through separately at the negotiated group rate — typically at or below what you would pay on the open market as a standalone employer.

What is actually included in the fee?

A well-structured PEO fee should include all of the following at no additional charge:

What should be negotiated separately or is sometimes included:

The line items worth negotiating

Most business owners accept the first proposal they receive. That is a mistake. Here are the levers that move in almost every negotiation:

  1. The administrative PEPM itself. If you have 20+ employees and a clean workers comp history, you have negotiating leverage. Use it. A 10-15% reduction on the admin fee is common when an experienced advisor is involved.
  2. Health plan contribution structure. PEOs offer multiple plan options. The employer contribution percentage is negotiable — you do not have to take whatever the default is.
  3. Workers comp deposit. Some PEOs require a large upfront deposit. This is negotiable, especially if your claims history is clean.
  4. Implementation fees. Some PEOs charge $500-$2,000 to set you up. These are often waived entirely if you push back or use an advisor.
  5. Annual rate increase caps. Get a cap on year-over-year administrative fee increases written into the contract. 3-5% is reasonable.

How to read a PEO proposal

When a PEO sends you a proposal, here is exactly what to check:

  1. Separate the admin fee from benefits costs. The admin fee is what you pay the PEO. Benefits costs are what you pay for coverage. They should be on separate line items.
  2. Calculate the all-in PEPM. Take the total monthly cost (admin + any additional fees), divide by your headcount. Compare this number across proposals — not the headline rate.
  3. Check the workers comp rate. Get your experience modification factor (X-mod) and compare what the PEO is charging per $100 of payroll against your current rate.
  4. Look for auto-renewal clauses. Some PEO contracts auto-renew with price increases. Know the cancellation notice period — typically 60-90 days.
  5. Understand the exit process. What happens to your benefits, payroll, and employee records when you leave? Get this in writing before you sign.

The honest reason most businesses overpay for PEO: They evaluated one or two proposals without knowing what fair looks like. An independent advisor who sees hundreds of proposals per year can tell you within minutes whether a proposal is competitive, high, or frankly aggressive — and on which specific line items to push back.

What does total PEO cost look like in practice?

Here is a realistic example for a 25-person professional services company in Colorado:

Cost ComponentMonthly Cost
PEO admin fee (25 employees × $140 PEPM)$3,500
Health insurance pass-through (25 employees × $650 avg)$16,250
Dental/vision pass-through$1,100
Workers comp (low-risk class)$800
Total monthly$21,650
Per employee per month (all-in)$866

For context: the same company buying comparable health insurance on the small group market, plus payroll software, plus HR advisory support, would typically spend $900-$1,100 per employee per month — with worse benefit plan quality and no compliance infrastructure.

Want a benchmark for your specific business?

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Related: What is a PEO? · How to choose a PEO · Why use an advisor