The short answer
Both quote their prices. ADP TotalSource is ADP’s co-employment PEO for small and midsize businesses, with a dedicated HR business partner and recruiting tools such as applicant tracking and background checks.
LeadChange Score: editorial assessment based on public information.
ADP TotalSource wins 0Paychex PEO wins 13 ties
| Dimension | ADP TotalSource | Paychex PEO |
|---|---|---|
| PricingBoth quote. Paychex PEO publishes some extra fees: a W-2 fee if you leave the service before December 31, a payroll delivery fee per location and a late fee for injuries reported after 48 hours. ADP TotalSource publishes no fee list on the pages we reviewed. Quote only | Quote only | Quote only |
| CapabilitiesBoth cover payroll and tax filing, benefits, HR compliance and workers' compensation. Paychex PEO sells time and attendance, hiring, performance and business insurance as additional solutions; ADP TotalSource includes talent acquisition, onboarding and analytics. Payroll and tax administration, Benefits administration, Workers' compensation and risk management, HR compliance, Talent acquisition, Onboarding, Analytics and reporting | 9 of 10 core capabilities | 10 of 10 core capabilities |
| Fit and supportADP TotalSource assigns a dedicated HR business partner and offers employees ADP MyLife Advisors. Paychex PEO adds a client advocate from 10 employees and a relationship manager from 200. Dedicated HR business partner, ADP MyLife Advisors (employee support) | Small businesses, mid-market companies | Small businesses, mid-market companies |
| SecurityPaychex PEO holds SOC 2 Type II and ISO 27001. ADP TotalSource names no security certification on the PEO pages we reviewed. Yes | None verified | SOC 2, ISO 27001 |
| Attribute | ADP TotalSource | Paychex PEO |
|---|---|---|
| Mobile apps | ADP mobile app | Paychex Oasis Employee Connect |
| Support channels | Dedicated HR business partner, ADP MyLife Advisors (employee support) | Client advocate (10+ employees), HR business partner, Safety specialist (master workers' comp policy clients), Payroll specialist, Relationship manager (200+ employees) |
| Founded | 1949 | 1971 |
| Headquarters | Roseland, New Jersey, US | Rochester, NY and Cincinnati, OH (dual headquarters) |
| Attribute | ADP TotalSource | Paychex PEO |
|---|---|---|
| Pricing model | Quote only | Quote only |
| Price transparency | Quote only | Quote only |
| Best for | Small businesses, mid-market companies | Small businesses, mid-market companies |
| Automatic tax filing | ||
| Ownership | Publicly traded | Publicly traded |
Pricing. Both quote. Paychex PEO publishes some extra fees: a W-2 fee if you leave the service before December 31, a payroll delivery fee per location and a late fee for injuries reported after 48 hours. ADP TotalSource publishes no fee list on the pages we reviewed.
Capabilities. Both cover payroll and tax filing, benefits, HR compliance and workers' compensation. Paychex PEO sells time and attendance, hiring, performance and business insurance as additional solutions; ADP TotalSource includes talent acquisition, onboarding and analytics.
Integrations. Neither publishes an integration list on the PEO pages we reviewed.
Fit and support. ADP TotalSource assigns a dedicated HR business partner and offers employees ADP MyLife Advisors. Paychex PEO adds a client advocate from 10 employees and a relationship manager from 200.
Security. Paychex PEO holds SOC 2 Type II and ISO 27001. ADP TotalSource names no security certification on the PEO pages we reviewed.
Justworks has the highest LeadChange Score in PEO Services after excluding these two (6.4/10).
From $79/employee/mo (PEO Basic plan)
Neither is better for every business. ADP TotalSource suits a buyer who wants a dedicated HR business partner and recruiting tools inside the PEO; Paychex PEO suits one who wants to start with HR guidance and move up to co-employment later.
ADP TotalSource is the closest: both are quoted, IRS-certified PEOs for small and midsize businesses. Against ADP, Paychex PEO differs by its three service levels and by listing its extra fees. Insperity, TriNet and Justworks are other PEOs we review.
ADP TotalSource is built for small and midsize businesses and runs payroll and tax filings in all 50 states, with workers' compensation included and a dedicated HR business partner. It is less suited to buyers who want a published price.
Neither publishes a price: both quote. Paychex PEO does list what it adds on top, such as a W-2 fee for clients who leave before December 31 and postage for mailed checks, so ask both for a full quote that includes those fees.
Yes. ADP TotalSource, Inc. and Paychex PEO VI LLC have both been on the IRS list of certified PEOs since January 1, 2017.
Yes, both include it. Paychex PEO adds safety assessments and OSHA-oriented programs for clients on its master policy; ADP TotalSource pairs coverage with risk and safety programs.
Only Paychex PEO states SOC 2 Type II and ISO 27001.
Your team size, what matters most and your role: see which one fits more of your answers, from verified facts and list prices. Then, if you like, ask to hear from both.
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What the LeadChange Score means
A 0–10 editorial assessment built only from verified facts, across six weighted dimensions: capabilities, pricing, integrations, security, fit and support, and data confidence.
Payments, commissions and lead fees are never inputs.
