Best PEO Services in 2026: Pricing and Picks Compared

Picture a 20-person company whose health insurance renewal came in far above last year's and whose owner now spends Fridays on HR paperwork. A PEO is the usual answer, and only two of the seven PEOs ranked here print a price you can check before talking to sales.

HRpresso data: Toolradar, the software directory we run, evaluated 73 payroll tools as of October 2026. PEOs sit outside that category because they co-employ your staff, and of the seven ranked below, 2 publish a USD fee while 5 quote only.

How we compared: we read each vendor's own PEO and pricing pages in October 2026 and ranked by fit for a US business under about 50 people. Hiring outside the US is a different product, covered in the EOR guide.

A professional employer organization (PEO) becomes your co-employer for US staff. It runs payroll under its own tax ID, buys health insurance and workers' comp as one large group, and takes on HR compliance, while you still hire, fire and manage.

That separates it from an employer of record, which is the legal employer for people in a country where you have no entity, and from payroll software, where you stay the sole employer and file under your own number. Justworks sells all three side by side, with payroll alone at $8 per employee plus a $50 monthly base fee.

The admin fee is only the first line of a PEO invoice. TriNet and Insperity both say on their own pages that payroll taxes, workers' compensation and benefits are billed separately from the service fee. Twenty people on Justworks PEO Basic come to $1,580 a month before any of that, and $2,480 on PEO Plus (our multiplication, not a quote).

The way the fee is built matters as much as its size. TriNet says it charges a flat per-employee fee and never a percentage of payroll, so a raise does not move the admin line. Insperity describes a fixed-dollar HR service charge that does not rise when you pay people more. Ask every vendor on this page whether the fee tracks payroll, because it decides what a growing team pays.

Then the downsides, which a buyer should price in before signing. Co-employment hands some employer duties to the PEO, so your team runs on the PEO's benefits plans and systems. TriNet's FAQ notes that most PEOs require an annual agreement and may add early-termination fees, so leaving is a project, not a click. Minimum headcount also bites: Justworks needs at least two W-2 employees, and TriNet requires a minimum it does not publish.

Prices were read on each vendor's own pages in October 2026: Justworks pricing (profile on Toolradar), Deel pricing (Toolradar profile), Rippling PEO, ADP TotalSource, Insperity pricing, TriNet PEO pricing and Paychex PEO.

Justworks PEO Plus and Deel sit a dollar apart, but they price different things. Justworks splits the fee into a lean Basic tier and a benefits-heavy Plus tier, while Deel quotes a single starting rate. At 20 employees that is $1,580 or $2,480 a month at Justworks against $2,500 at Deel, before premiums, taxes and workers' comp.

The other five vendors print no per-employee number, so any figure you see for them elsewhere is a quote or an estimate. Budget with a written quote that itemizes the admin fee, the pass-through costs and the renewal terms, and compare quotes on the same headcount.

Choose a PEO when HR, benefits and compliance take more of the owner's week than the work itself, and you have at least two W-2 employees in the US. Justworks fits if you want a price on paper before any demo. Deel fits if you need all 50 states plus contractors or international hires later. Rippling fits if you want to keep the HR system when you outgrow the PEO.

Move to ADP, Insperity or TriNet when you can negotiate a quote, have multiple states or want a dedicated advisor. Skip a PEO if you only need payroll: the payroll guide covers cheaper tools, and benefits administration software and HR compliance software cover the other halves. Small teams comparing HRIS options can start with the small business HRIS guide or the HRIS cost breakdown.

If you already run Rippling, Justworks, ADP, Paychex or Gusto for payroll, read that review before you add co-employment on top. The Gusto pricing breakdown and ADP pricing breakdown show what payroll alone costs.