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ADP TotalSource®

What is ADP TotalSource?

ADP TotalSource is ADP's professional employer organization (PEO) solution for small and midsize businesses. It brings payroll, benefits administration, workers' compensation and regulatory compliance together with dedicated HR expertise and technology to help businesses manage growing workforce complexity. ADP TotalSource is an IRS-certified PEO (CPEO) and ESAC-accredited.

How ADP TotalSource works

With ADP TotalSource, small and midsized businesses gain a co-employment partner to help strengthen their HR capabilities, support employees and navigate workforce challenges with greater confidence.

Who handles what with ADP TotalSource

ADP TotalSource is a shared-responsibility model: some things ADP manages fully, some stay with you and a few sit in between.

  • ADP handles benefits administration end-to-end, from plan negotiation and enrollment to ongoing support
  • ADP manages risk and safety programs directly, helping to reduce your workplace injury and compensation exposure
  • Compliance is shared: ADP monitors regulations and flags changes, while you implement them in how the business operates day to day
  • HR guidance is shared: Your dedicated HR business partner provides expert advice and recommendations
  • You run payroll while ADP provides the platform, specialist support and compliance guardrails for all things payroll-related
  • You keep control of managing your business, leading day-to-day operations, including hiring decisions, roles and customer relationships

What you get with ADP TotalSource

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Who is ADP TotalSource best for?

ADP TotalSource is ideal for businesses seeking a stronger approach to managing and supporting their workforce, whether they're navigating growth, workforce challenges or growing HR demands.

  • For small, hands-on teams: When the owner, office manager or another employee is juggling HR on top of other duties, ADP TotalSource helps streamline HR, payroll, benefits and compliance so your team can spend less time on administration and more time running the business.
  • For expanding businesses: As you add employees, locations or states, ADP TotalSource helps create consistency with standardized HR processes, compliance support and technology that scales with your business.
  • For complex, established organizations: If you're managing a larger workforce, multiple business units or increasing compliance requirements, ADP TotalSource provides specialized expertise, integrated systems and multistate compliance support to help you operate consistently at scale.

Interactive demo: See how ADP TotalSource works

Access our interactive demo and see how easy it is to manage everything HR for your business.

How ADP TotalSource pricing works

ADP TotalSource pricing is quoted rather than listed, since it is built around factors that are specific to your business. The same factors drive cost across the PEO category, and our guide to PEO costs breaks down each one. The largest drivers are:

  • Workforce size and demographics
  • Injury-risk profile and workers’ compensation exposure
  • Where your employees work, and the compliance complexity that comes with it
Smiling businessman in a blazer, with ESAC Accredited and IRS certification badges displayed alongside him

Certified PEO

ADP TotalSource: IRS-certified PEO (CPEO) and ESAC-accredited

ADP TotalSource is backed by the PEO industry’s toughest certifications. It is among approximately 12% of PEOs that are an IRS-certified CPEO1,2 and just 6% of PEOs with ESAC-accreditation3. This means stronger financial protections, verified compliance and less overall risk for your business.

  • IRS-certified PEO (CPEO) since 2017, providing certain financial protections and tax benefits to PEO clients
  • ESAC-accredited since 1995, demonstrating financial stability, tax compliance, ethical business conduct and adherence to regulatory requirements and operational standards
  • Bonded up to $1 million annually to guarantee tax payments
  • Full continuity of tax credits you'd be entitled to outside a PEO relationship
  • Compliance with 40+ industry best practices

How ADP TotalSource helps others like you

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ADP TotalSource provides value in time and money savings

Small and midsize business report big results with ADP TotalSource. Read our ADP TotalSource® ROI research study to see how.4
View more TotalSource client results

70%Of clients saw measurable ROI within 6 months

50–80%Reduced payroll processing time

70%Reduction in employee onboarding time

FAQs about ADP TotalSource

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*ADP MyLife Advisors, 2025 Service Performance

  1. IRS active CPEO list (the countable PDF): https://www.irs.gov/pub/irs-sbse/active-cpeos.pdf - dates, entity counts, Rippling/Gusto absence
  2. NAPEO Industry Overview (500 PEOs): https://napeo.org/intro-to-peos/industry-overview/
  3. Based on a count of ESAC’s state by state accredited PEO directory, July 2026, counting each PEO once. https://www.esac.org/Business/find-a-peo
  4. May 2026 ADP TotalSource ROI Research