Rankings updated Oct 27, 202627 PEOs scored15 IRS-certifiedNo pay-to-rank. How scoring works
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Head to head · scores updated Oct 27, 2026

ADP TotalSource vs TriNet: scored side by side

ADP TotalSource scores 77 and TriNet scores 72 out of 100. ADP TotalSource starts lower: ~$70–$200/employee/mo versus ~$80–$150/employee/mo (estimates labeled).

Score breakdown

FactorMaxADP TotalSourceTriNet
IRS CPEO certification303030
ESAC accreditation202020
Price transparency201010
Contract flexibility1000
Small-business access1072
Coverage101010
Total1007772

Side by side

ADP TotalSourceTriNet
Trust Score77 / 10072 / 100
Price~$70–$200/employee/mo Estimate~$80–$150/employee/mo Estimate
Pricing model% of payroll or PEPMFlat PEPM (unpublished)
CertificationCPEOESACCPEOESAC
Minimum employees5 employeesNot published
Best fit10–200 employees10–500 employees
ContractMulti-year terms reportedAnnual
CoverageNationalNational
IndustriesProfessional services, Financial servicesTech and startups, Professional services, Financial services, Nonprofits, Healthcare practices
25 employees, admin fee per year$21,000–$60,000$24,000–$45,000
StrengthsScale and decades of payroll-tax infrastructure · Annual benefits benchmarking · CPEO and ESACIndustry-specific compliance and benefits · Flat per-employee admin fee · CPEO and ESAC
Watch out forPayroll-based fees rise with raises · Long contracts reported · Underwriting may turn away high-risk industriesNo public rate card · Several features rely on partners

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Questions buyers ask

Which ranks higher, ADP TotalSource or TriNet?

ADP TotalSource ranks higher, 77 to 72. The score uses certification, price transparency, contract terms, minimum headcount and coverage only.

Is ADP TotalSource cheaper than TriNet?

ADP TotalSource starts lower: ~$70–$200/employee/mo versus ~$80–$150/employee/mo (estimates labeled).

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