Understanding PEO Pricing: A Complete Guide to Costs and Models

A Professional Employer Organization, or PEO, helps businesses manage employment-related functions such as payroll, payroll tax administration, employee benefits, HR support, compliance, workers' compensation, onboarding, and risk management.

PEO pricing in the US depends on factors such as headcount, employee locations, and included services. Some PEOs charge a flat per-employee-per-month fee. Others charge a percentage of payroll. Many quote custom pricing after reviewing your workforce.

This guide explains how PEO pricing works, what is included, and how to compare quotes without focusing only on the headline admin fee.

How Much Does a PEO Cost in the US?

As of July 2026, ADP says PEO administrative fees commonly range from 2 to 12 percent of total payroll, or about $40 to $160 per employee per month. The final price depends on the provider.¹ Transparent providers such as Justworks publish PEO pricing, while providers such as ADP, Paychex, and TriNet typically use custom quotes.

PEO pricing also depends on the level of service proveded.

Many PEOs operate through a co-employment arrangement. The business continues to control day-to-day operations, business strategy, and employee work, while the PEO takes on certain administrative employer responsibilities defined in the service agreement.

Some PEOs are Certified Professional Employer Organizations, or CPEOs.⁷ The IRS says a CPEO may agree to take over some or all federal employment tax responsibilities under a CPEO contract. The IRS also publishes certification information.⁸ Certification is not the only factor to consider, but it is worth checking when comparing providers.

What Are Common PEO pricing models?

Per employee per month (PEPM)

With PEPM pricing, the PEO charges a fixed administrative fee for each covered employee each month.

Example:

25 employees x $100 PEPM = $2,500 monthly PEO admin fee

PEPM pricing is easy to forecast as headcount changes. It may work well for companies with predictable staffing and a mix of salary levels.

Percentage of payroll

With percentage-of-payroll pricing, the PEO charges an administrative fee as a percentage of total payroll.

Example:

$200,000 monthly payroll x 4 percent = $8,000 monthly PEO admin fee

This model scales with payroll. It may cost more as wages rise, even if headcount stays flat.

Flat base fee plus add-ons

Some providers separate software, payroll, HR consulting, benefits administration, time tracking, international contractor payments, or other services into add-ons. This can look cheaper upfront, but the total cost may rise once you include everything you need.

Published PEO pricing examples

Most major PEOs quote custom prices, but there are some public benchmarks.

Justworks publishes transparent PEO pricing.² As of the pages reviewed for this article, Justworks lists:

• PEO Basic: $79 per employee per month
• PEO Plus: $124 per employee per month
• Payroll-only plan: $8 per employee per month plus a $50 monthly base fee

Justworks says its PEO Basic plan includes payroll, compliance support, HR support and consultation, reporting tools, contractor and vendor payments, commuter benefits, workers' compensation access, life and disability insurance, and 401(k) access.³ PEO Plus adds access to medical, dental, vision, HSA, FSA, One Medical where available, and Teladoc.

TriNet says it uses PEPM pricing for administrative cost, with a flat monthly fee for each active worksite employee.⁴ It also notes that employee benefits, workers' compensation, payroll taxes, and add-ons are separate from the PEPM fee.

ADP TotalSource and Paychex PEO generally require a custom quote.¹⁶ Their public resources focus on how pricing is determined and what services are included rather than a universal price.

What affects PEO pricing?

PEO pricing is risk-adjusted because the provider is not just selling software. It is supporting payroll, taxes, benefits, compliance, workers' compensation, and HR administration.

Common pricing factors include:

• Number of employees
• Total payroll
• States where employees work
• Industry risk
• Workers' compensation class codes and claims history
• Benefits plan selection
• Employer contribution levels
• Number of hourly vs. salaried employees
• Payroll frequency
• Turnover
• HR complexity
• Compliance requirements
• Add-ons such as time tracking, recruiting, performance management, or international support

A 20-person office-based software company and a 20-person construction company may receive very different PEO quotes because their workers' compensation, safety, claims, and compliance risks are different.

What is usually included in a PEO fee?

PEO packages vary, but a full-service PEO may include:

• Payroll processing
• Payroll tax withholding, filing, and remittance
• W-2 and 1099 support
• Employee onboarding
• HR support and templates
• Employee handbook support
• Compliance alerts
• Benefits administration
• Access to health, dental, vision, life, disability, or retirement plans
• Workers' compensation administration
• Claims support
• HR technology platform
• Employee self-service portal
• State unemployment insurance administration
• Employment practices liability insurance, depending on provider and plan

Always ask what is included in the administrative fee and what is billed separately.

PEO costs that may be separate

The admin fee is only one part of total employment cost. A PEO invoice may also include:

• Employee wages
• Employer payroll taxes
• Employee and employer benefit premiums
• Workers' compensation charges
• Retirement plan contributions
• Setup or implementation fees
• Time tracking add-ons
• Dedicated HR consulting add-ons
• International contractor or employer-of-record fees
• State-specific fees
• Late fees or off-cycle processing fees

When comparing quotes, ask for a sample invoice so you can see how charges appear in practice.

Sample PEO pricing calculation

Suppose a business has 30 employees and receives two PEO quotes.

Quote A:

• $95 PEPM admin fee
• Benefits, payroll taxes, and workers' compensation billed separately

30 employees x $95 = $2,850 monthly admin fee

Quote B:

• 4 percent of payroll admin fee
• Monthly payroll is $180,000

$180,000 x 4 percent = $7,200 monthly admin fee

Quote A looks cheaper, but that does not automatically make it better. The real comparison should include:

• Benefits premiums and plan quality
• Workers' compensation treatment
• Payroll tax administration
• HR support level
• Compliance support
• Technology
• Add-ons
• Contract terms
• Service responsiveness
• Exit process

The right PEO is the one with the best fully loaded value, not always the lowest admin fee.

How to compare PEO quotes

Ask each provider for answers to the same questions:

• Is pricing PEPM, percentage of payroll, or hybrid?
• What is included in the admin fee?
• What is billed separately?
• Are benefits premiums guaranteed for a period?
• Is workers' compensation included or separate?
• Are there implementation fees?
• Are there minimum employee counts?
• Are contractors billed?
• Are unpaid owners billed?
• How are part-time employees treated?
• What happens if headcount changes mid-month?
• What HR support is included?
• Is the PEO a CPEO?
• What contract term and termination notice apply?
• What data do we receive if we leave?

Put each quote into a spreadsheet and calculate annual cost under the same assumptions.

When is PEO pricing worth it?

PEO pricing may be worth it when the business gains more value than it pays in administrative fees. Benefits may include reduced HR workload, better employee benefits access, stronger compliance support, workers' compensation administration, improved retention, and fewer vendors to manage.

NAPEO reports that businesses using PEOs grow faster, have lower turnover, are less likely to go out of business, and see 27 percent ROI in cost savings alone.⁹ Those are broad industry statistics, not a guarantee for any one business, but they explain why many small and mid-sized employers consider PEOs when HR becomes more complex.

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FAQs

How much does a PEO cost per employee?

PEO administrative fees often range from about $40 to $160 per employee per month, according to ADP's 2026 PEO pricing guidance. Published prices vary by provider. Justworks lists PEO Basic at $79 per employee per month and PEO Plus at $124 per employee per month.

Is PEO pricing based on payroll or headcount?

Both models are common. Some PEOs charge a percentage of payroll. Others charge a flat per-employee-per-month fee. Some use custom or hybrid pricing.

Are benefits included in PEO pricing?

Benefits administration may be included, but the actual health insurance and benefit premiums are usually separate employment costs. Always confirm what is included in the admin fee.

Is a cheaper PEO always better?

No. A cheaper PEO may exclude services, charge add-ons, offer weaker support, or provide less useful benefits. Compare total annual cost, service scope, benefits, risk support, and contract terms.

Sources

1. ADP: What does a PEO cost?
2. Justworks pricing
3. Justworks Help Center: Pricing
4. TriNet PEO pricing
5. TriNet PEO services
6. Paychex PEO services
7. IRS: Certified professional employer organization
8. IRS: CPEO customers - what you need to know
9. NAPEO industry research and data