Paychex PEO review: cost, services and contract terms

Paychex PEO at a glance

Published price

None"Request Pricing"

Third-party estimate

$100 to $250per employee per month (2026)

Promotion

3 months freebanner, no terms shown

IRS CPEO

YesPaychex PEO VI and VII, Oasis III

Paychex PEO is the co-employment tier of Paychex, which also sells payroll-only and HR packages. Oasis is now sold as part of Paychex HR; its page says Oasis PEO service will not change during the transition. If you already run Paychex payroll, the PEO is the upsell your rep will pitch.

Paychex PEO pricing and service tiers

Paychex shows "Request Pricing" and "Get a Free Consultation" and says "PEO costs typically range, depending on company size, industry, services selected, and employee count", with no figures after it. Its savings calculator carries a disclaimer that results are estimates. The PEO page itself has no plan tiers. What changes with size is who serves you:

On Paychex's plan comparison page, the PEO appears as "HR PEO" ("All-In-One HR, Benefits, & Payroll") next to HR Pro ("HR Guidance, Payroll, Safety, 401(k)"), which is not a PEO. Both show "Request Pricing". See Paychex payroll pricing for the payroll-only plans.

What Paychex PEO might cost for 5, 10 and 25 employees

The percent-of-payroll estimate gives a different answer. For 10 employees earning $50,000 each, 2% to 4% of $500,000 is $10,000 to $20,000 a year. The two estimates do not agree; get Paychex to quote in dollars per employee so you can compare it with Justworks' posted $79 to $124.

On top of the fee: employer Social Security and Medicare at 7.65% (Social Security up to $184,500 of wages in 2026), so $38,250 a year on a $500,000 payroll; FUTA at a net 0.6% of the first $7,000 per employee ($42 each); state unemployment tax (SUTA rates by state); and health premiums. Model your state with the employee cost calculator and see how PEO pricing works.

What the Paychex PEO fee includes and leaves out

Included, per the Paychex PEO page: payroll and tax filing (the PEO "files payroll taxes under its EIN"), access to larger-group benefits, HR documents and policies, employment-law monitoring, safety support, and workers' comp administration and claims.

Not published: premiums, setup fees, minimum headcount, contract length, exit fees and a tax filing guarantee.

Benefits through Paychex PEO

Paychex names Aetna, MetLife, Delta Dental and Chubb as benefits partners. Plan choice depends on your state. One Trustpilot reviewer reports that health insurance and 401(k) coverage lapsed (page 8, May 9, 2026; Trustpilot). After you join, ask employees to check their first benefit deductions and confirm coverage with the carrier.

Contract and exit terms

Billing after cancellation is a very common Paychex complaint across products: one reviewer got confirmation that everything was canceled, then a bill arrived later (Trustpilot, Oct 13, 2026). Send notice by tracked mail, keep the delivery receipt, and watch your bank account for three months after the end date.

As with any PEO, leaving means new health plans, a new 401(k) plan, possibly a reopened state unemployment account, and W-2s from the PEO for the wages it paid. Our guide to leaving a PEO has the full timeline.

CPEO status, states and company size

Certified PEO: yes. The IRS active CPEO list (report date 8/7/2026) includes Paychex PEO VI LLC, Paychex PEO VII, LLC and Oasis HR Solutions III, LLC. The Paychex PEO page does not mention it. Check which entity your contract names; see the IRS certified PEO list.

States: multi-state ("maintaining compliance across state lines"). Paychex payroll requires clients to register for state tax accounts themselves and give Paychex the agency ID numbers, with a paid Middesk service to help. Ask whether the PEO handles registration in new states.

Size: no published minimum; the service model starts under 10 employees.

Support

PEO worksite employees call Paychex Flex at 800-741-6277 or Oasis at 800-822-8704. Clients get the assigned contacts in the size table above. Hours are not published. Paychex as a whole has 1.7 out of 5 from 858 Trustpilot reviews and 4.1 out of 5 from 1,748 G2 reviews (both seen October 16, 2026); neither has a separate PEO page.

What Paychex customers complain about

We did not find enough PEO-specific reviews to list PEO complaints on their own. These are the recurring Paychex complaints across products:

Our score for Paychex PEO

Paychex PEO ranks 4 of the 15 PEOs we score.

Scores use published terms, prices and documented complaints; we did not test Paychex PEO. See how we score and the full PEO ranking.

Who Paychex PEO fits, and who should look elsewhere

Compare with the ADP TotalSource review, the Justworks review (posted prices) and the Insperity review, or start at the PEO hub.

More PEO reviews and comparisons

• ADP TotalSource reviewADP's PEO: quote-only pricing, workers' comp in the fee, renewals.
• Engage PEO reviewQuote-only PEO on the IRS CPEO list; most terms not public.
• Insperity reviewHow Insperity's fixed fee works, the $425 promo and what to ask.
• Justworks reviewPosted PEO prices, the 2026 increase, complaints and how to leave.
• Justworks alternativesScored alternatives, payroll-only routes and a step-by-step exit plan.
• Justworks vs TriNetA posted $79 to $124 PEO fee against TriNet's quote, minimum headcount and longer support hours.
• Rippling PEO reviewQuote-only PEO on a modular platform; CPEO status not confirmed.
• Rippling vs JustworksJustworks' posted $79 to $124 PEO fee against Rippling's quote-only PEO and modules.
• TriNet reviewQuote-only pricing, the FSA complaints, minimums and how to leave.
• TriNet alternativesScored alternatives, the ASO option and what changes when you leave.
• TriNet vs InsperityTwo quote-only PEOs: TriNet's per-employee fee against Insperity's fixed HR charge and $425 credit.