PEO / US buying shortlist
7 best PEOs for small US businesses
The seven PEOs, ranked
| Provider | What it offers | Main limitation | Why this position |
|---|---|---|---|
| 1Justworks | Payroll and benefits administration with published service fees | Insurance premiums and HR consulting cost extra | Published service-fee baseline for the stated payroll and benefits brief. |
| 2ADP TotalSource | An HR business partner backed by payroll and benefits specialists | Your team still runs payroll and implements changes | Specialist HR guidance; moves first when that outweighs public pricing. |
| 3ExtensisHR Premier | HR support and recruiting coordinated by one account manager | Less useful if you rarely hire and already manage HR suppliers | Recruiting and service coordination; moves down when hiring is infrequent. |
| 4TriNet | An administrative fee charged per employee, separate from benefits | Minimum headcount and benefit costs may make it unsuitable | Core administration before additional manager guidance for this brief. |
| 5Insperity HR360 | HR specialists helping with handbooks and performance management | More service than needed if you only want records and payroll software | Manager support before the existing-Paychex customer route below. |
| 6Paychex HR PEO | Paychex payroll customers adding HR support and benefits | Leaving early may trigger additional fees under your agreement | Higher priority for existing Paychex customers adding PEO services. |
| 7Rippling PEO | Keep the HR platform when you leave the PEO service | You still need replacement benefits and payroll responsibilities assigned | Higher priority when keeping the HR platform after exit matters. |
Start with Justworks and ADP TotalSource. Add ExtensisHR Premier if recruiting and coordinating HR suppliers are taking up your team’s time.
How we ranked these seven · Prepare the same brief for each PEO
Is a PEO the right purchase?
This ranking fits
A 30-person US professional-services employer buying domestic co-employment, with someone internally to approve payroll and manage employees.
Consider an HR system instead
Payroll and benefits already work, and scattered employee records are the main problem.
Construction, schools and international hiring need a different brief. Compare benefits and retained work before accepting the order above.
Justworks
Start here for payroll and benefits administration at published service fees.
- Best for
- Payroll and benefits administration with published service fees.
- Consider another option
- Required consulting and benefits raise the total above another suitable proposal.
Plus service fee · 30 employees
$3,720 / month$124 per employee; no base fee. Insurance premiums and other costs are extra.
Why #1 in this shortlist?
First for a published service-fee baseline and a defined payroll and benefits package. ADP moves ahead when specialist HR guidance matters more than public pricing.
Basic costs $79 per employee per month. Dedicated HR consulting adds $30 per employee per month. Plus with consulting costs $154 per employee per month, or $4,620 for 30 employees. Time tracking costs extra.
ADP TotalSource
Shortlist for recurring HR guidance backed by specialist teams.
- Best for
- An HR business partner supported by payroll, benefits and other specialists.
- Consider another option
- Nobody on your team can run payroll or implement the required changes.
Service and benefits proposal
Scoped quoteNo comparable public total established in this research.
Why #2 in this shortlist?
Second for recurring HR guidance across specialist teams. ExtensisHR moves ahead when recruiting and coordinating service teams are central requirements.
Your team runs payroll using ADP’s platform and support. Assign entry, approval, funding and correction responsibilities before signing.
ExtensisHR Premier
HR support and recruiting coordinated by one account manager.
- Best for
- One account manager coordinating service teams, with expanded recruiting and payroll support.
- Consider another option
- You rarely hire and already have someone managing HR suppliers.
Premier service and benefits
Scoped quoteSpecify recruiting coverage, retained tasks and extra charges.
Why #3 in this shortlist?
Third because Premier adds recruiting and service coordination to this brief. Move it below the broader PEO alternatives when you rarely hire.
Premier does not replace an HR director. Its 45-day placement objective is a goal, not a guaranteed hire.
TriNet
Compare when you want administration priced separately from benefits.
- Best for
- A separate administration fee and benefits quote for the same employees.
- Consider another option
- Your team is below the minimum headcount, or the full cost exceeds another suitable proposal.
Per-employee administrative charge
Scoped quoteBenefits and payroll taxes separate; a minimum worksite headcount applies.
Why #4 in this shortlist?
Fourth for a proposal centred on payroll and benefits administration. We place it before Insperity for this brief; reverse them when ongoing manager coaching is the main purchase.
No standard public list price is established here. The supplier’s hypothetical employee rate is not an offer.
Insperity HR360
Consider when managers need continuing help from HR specialists.
- Best for
- Consultative support, including handbook and performance-management work, alongside the platform.
- Consider another option
- Your team mainly needs records and payroll administration it already handles.
HR360 configuration
Scoped quoteNo verified public HR360 rate; keep HRCore and HRScale quotes separate.
Why #5 in this shortlist?
Fifth for continuing handbook and performance-management support. It comes before Paychex here because the brief assumes no existing payroll-provider relationship.
Ask the proposed team to work through a manager issue: what will it deliver, what remains your decision, and who handles escalation?
Paychex HR PEO
An option for Paychex payroll customers buying a broader HR service.
- Best for
- An existing payroll relationship with a demonstrated plan for transferring records and configuration.
- Consider another option
- You need to leave before the term ends and the departure charges make switching too expensive.
Include the departure invoice
Scoped quotePrice the agreement’s notice, transition and early-termination terms.
Why #6 in this shortlist?
Sixth because its strongest fit in this shortlist is an existing Paychex customer adding PEO services. Move it ahead when that relationship and the proposed transition are advantages.
Published terms include conditional transition and early-exit fees, a possible midyear W-2 fee, and services that may continue. Exceptions and your agreement determine the actual charge.
Rippling PEO
Move it up when you intend to keep the HR platform after the PEO.
- Best for
- You want to keep the same HR platform after leaving the PEO service.
- Consider another option
- You need only the PEO service and would pay for extra HR tools your team will not use.
PEO now; platform after exit
Scoped quoteRequest both configurations and their complete costs.
Why #7 in this shortlist?
Seventh because this brief does not require a wider HR platform or a planned move off the PEO. Move it up when retaining the platform after exit is a buying priority.
Retaining the platform can remove a software migration. Replacement benefits, tax administration, service ownership and notice still need a plan.
Compare administration and benefits costs together
Illustration only: 30 employees, unchanged scope and benefit elections. These are fictional offers, not supplier quotes.
| Cost | Offer A | Offer B |
|---|---|---|
| Administrative fee | $3,000 | $3,600 |
| Employer benefits contribution | $18,000 | $17,200 |
| Selected monthly subtotal | $21,000 | $20,800 |
| 12 unchanged months | $252,000 | $249,600 |
$2,400 annual difference
B costs $600 more in monthly service fees but $800 less in employer benefits contributions: a $200 monthly difference. Coverage and employee costs must also be acceptable.
A $3,000 transition reverses it
This invented one-time cost would exceed the first-year difference. Include actual setup and departure charges before choosing.
Subtotals exclude wages, employer taxes, workers’ compensation, other insurance, add-ons and implementation. Reconcile payroll funding separately to avoid double-counting. Keep staff-time estimates separate from cash savings.
Six things every proposal must answer
For each row, record the supplier’s answer, your retained task, supporting evidence and unresolved cost.
| Row | Evidence to request | Decision it supports |
|---|---|---|
| 1. Payroll operation | Entry, approval, release, error and funding owners; deadlines | Can your team perform the retained work? |
| 2. Benefits | Same census and elections; employer/employee contributions; networks and plan documents | Is a lower bill a better purchase or reduced coverage? |
| 3. Service fee | Billing population, minimum, add-ons, renewal mechanism and setup | What changes when headcount or scope changes? |
| 4. Contracting entity | Legal entity, EIN and relevant status; agreement allocation of duties | Does the evidence belong to the entity you are signing with? |
| 5. Exit invoice | Notice, term, calculation and exceptions; priced ordinary and early departure | Can you afford the exit you may need? |
| 6. Continuity | Replacement coverage dates, data export, tax records and continuing products | What must be ready before the old service ends? |
Illustration only: 30 workers × $2 per remaining day × 90 days = $5,400. This invented formula is not a provider rate or a conclusion about enforceability.
Check the contracting entity
If your proposed agreement uses a certified PEO (CPEO), verify that exact entity against the IRS list.
- Match the name and EIN. The agreement should identify the exact CPEO fulfilling the obligations; match it to the current IRS listing.
- Keep the tax distinction. Generally, the CPEO alone is liable for covered taxes on remuneration it pays qualifying worksite employees. Liability for non-worksite employees may be shared.
- Agree on reporting. Customers cannot view CPEO deposits through their own EFTPS account. Specify the evidence you will receive.
IRS customer guidance · This is not a blanket transfer of employment responsibilities. Your contracting entity has not been verified here.
What determines the PEO order
Seven researched PEO services for a 30-person US professional-services business. This order sets the first proposal meetings; the actual benefits, retained work and complete cost decide the purchase.
- Start with package and service fit
- Justworks supplies the public service-fee reference. ADP moves first when its specialist HR guidance is the stronger fit. ExtensisHR Premier moves up when recruiting and service coordination are immediate needs.
- Change the brief, change the order
- TriNet fits the administration-led comparison; Insperity moves up for continuing manager support. Paychex moves up for an existing customer, and Rippling when retaining the platform after PEO exit matters.
- Compare the same workforce and benefits
- Request proposals for the same workforce, benefit elections and employer contributions. Include work retained by your team and departure charges. The administrative fee alone cannot establish the cheapest complete proposal.
Based on published product scope and pricing, not hands-on tests or numerical scores. A demo and complete quote can change the recommendation. Sponsorship does not buy a ranking position. Commercial policy.
Questions buyers ask
Which PEO would you approach first for this 30-person brief?
Justworks for a public service-fee reference and ADP TotalSource for its described specialist model. Add ExtensisHR Premier when recruiting and coordination are material requirements. The actual benefits and service proposals decide the winner.
Does a PEO administrative fee include health insurance premiums?
Do not assume it does. TriNet explicitly separates benefit costs from its administrative fee; Justworks Plus prices administration. Obtain the premiums, employer contributions and employee deductions for your actual elections.
Can leaving a PEO create an additional bill?
Yes, depending on the agreement. Paychex publishes transition and early-termination provisions with conditions and exceptions. Request your actual schedule and a worked exit invoice rather than assuming a universal fee or free cancellation.
Did People Ops Buyer test these services?
No. This is published-source research and editorial buying analysis, with fictional cost examples and a procurement worksheet. It does not report hands-on service results or a legal review of your agreement.
Sources and research scope
US buying research checked 1 October 2026. Provider descriptions establish advertised scope, not measured service quality. Rankings are conditional editorial preferences, separate from EOR Atlas scores. Rippling direct retrieval failed; its narrow platform-continuity claim was available in indexed official text. No commercial partner supplied this ranking.
- Justworks pricingCurrent service fees, consulting add-on and plan scope; premiums are not modelled as included.
- ADP TotalSource responsibilitiesClient and supplier duties; HR business partner and specialists.
- ExtensisHR PEO PremierCoordination, expanded recruiting and payroll scope; stated goal is not a guarantee.
- TriNet PEO pricingPEPM, separate benefits/taxes, minimum and tailored quotes.
- Insperity HR360Product scope and specialist support; no public rate asserted.
- Paychex PEO termsVersion effective 7 July 2026; exit provisions require the buyer-specific agreement.
- Rippling PEOIndexed official text supports retaining the platform after PEO exit; direct retrieval unavailable.
- IRS CPEO customer guidanceNarrow federal tax responsibility, entity identity and reporting conditions.