Professional Employer Organization (PEO)

See how businesses from 5 to 250 employees get day-to-day HR support and ongoing HR guidance from the nation’s largest PEO.

ADP TotalSource clients save 30% more time with our PEO

What is a PEO?

ADP TotalSource®, our professional employer organization (PEO), is a cost-effective, all-in-one HR solution that takes on complicated, time-consuming HR tasks, so you can shift your focus to your business’s most pressing needs.

Here’s just some of what you’ll get with our PEO:

  • Attractive and cost-effective benefits plans, from the most trusted national and regional brands
  • Workers’ compensation coverage and claims management
  • All-in-one payroll and tax support
  • Coverage in all 50 states
  • HR guidance backed by ADP
  • Help with hiring and employee retention

Learn more about our PEO

What is a PEO?

How a PEO works

Although ADP TotalSource® is an all-in-one HR solution, that doesn’t mean it’s one-size-fits-all. We’ll gain a deep understanding of your company’s needs and goals — as well as its challenges— to design an HR plan that works best for you and your employees. We’ll:

  • Help stabilize labor costs by choosing the right workers’ comp coverage and benefit plans for your employees
  • Help your business become more efficient by helping you consolidate vendors and streamline processes
  • Reduce the overall risk of your business by being your go-to for everything compliance
  • Become an extension of your team by providing day-to-day support plus strategic HR guidance

You’ll be able to lean on us for any HR challenge so you can focus on vital business operations.

Learn more about ADP TotalSource

How a PEO works

Meet ADP TotalSource, your all-in-one PEO for everything HR

The HR support you need is finally here: ADP TotalSource. Our flagship PEO solution is designed to integrate seamlessly with small and midsized businesses, providing HR, benefits, compliance, and workers’ comp — all under one umbrella. You even get dedicated support from an HRBP, your go-to HR expert.

Video: Why a PEO works for portfolio companies

The knowledge you need — in your corner

With ADP TotalSource, you won't waste time getting "help" from a chatbot. You'll reap the rewards of having a real-life HR business partner — or HRBP — working directly with you, guiding you through the full range of HR issues. Your HRBP is here to offer:

  • Extensive HR experience across industries, states and ownership types
  • Day-to-day HR support along with ongoing strategic guidance
  • HR guidance backed by ADP

HR solutions that move with you

Our easy-to-use platform and top-rated mobile app allow you to stay on top of payroll and HR tasks wherever you go. No more worrying about a lack of access — you now have the power to quickly manage people and tasks from anywhere.

  • Employee self-service
  • All-in-one platform
  • 24/7 self-service standard reports and drag and drop custom reports
  • Top-rated ADP mobile app

The confidence to handle anything

ADP TotalSource was built to be your single-stop answer for all things HR. It allows you to efficiently solve any HR issue sent your way — and lets you do it all from the comfort of a single platform.

  • Hiring
  • Benefits
  • Payroll
  • Compliance
  • Risk and safety

Choose a trusted partner

There are significant advantages to partnering with a certified PEO like ADP TotalSource:

  • Certified PEOs meet all the rigorous background, financial and reporting requirements set by the IRS
  • This certification ensures financial protections and tax benefits to TotalSource clients that users of non-certified PEOs do not necessarily receive
  • ADP TotalSource helps ensure your federal employment taxes are paid

See ADP TotalSource Features

A PEO for a Growing Business

Many growing businesses face HR headaches. Adding employees leads to more HR, payroll and compliance tasks. Offering competitive benefits is becoming increasingly challenging. With the world of work and regulations changing fast, overwhelming is an understatement.

That's why growing businesses partner with ADP's PEO, TotalSource. Our IRS-certified, all-in-one PEO takes care of the people side of your business in a cost-effective way.

Learn more about TotalSource

Let's Talk

The payoff of a PEO

A PEO will help you consolidate services, streamline processes, and reduce some of your risk as an employer — but ADP doesn’t stop there. TotalSource goes above and beyond to look at other critical areas like designing the right benefit strategy, proactive compliance, and addressing employee turnover and productivity. We help you optimize your labor costs by:

  • Highlighting what you should be paying, which plans you should be offering, and why
  • Helping you mitigate your overall risk by being your go-to for compliance
  • Providing you and your team with training and safety advice
  • Helping you understand employee turnover before it becomes costly

Let's Talk

Awards and recognition

Join the growing community of businesses leveraging ADP's powerful technology, expertise and insights.


*The IRS does not endorse any particular certified professional employer organization. For more information on certified professional employer organizations, go to

Resources and insights

PEO Benefits Small Business


Benefits of a PEO for small businesses


Why Partnering With a PEO Makes Sound Business Sense


Take payroll and HR administration off your plate. And reap the rewards.

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How much does ADP TotalSource cost?

Contact ADP TotalSource to get a custom quote for your business.

Here's how current users are saying TotalSource has impacted their bottom line.

“With ADP TotalSource our top line and bottom line have been enhanced. The time savings we get are repurposed to drive sales. The cost of retaining TotalSource is less than sourcing all the solutions individually and then hiring a manager to oversee it.” –CEO, Professional Services

“Our ADP representatives are full of knowledge and will get us answers to questions quickly. And ADP TotalSource is saving us a lot of money.” –VP of HR and Administration, Manufacturer

Is ADP TotalSource a certified PEO?

Yes, ADP TotalSource has met all the rigorous background, financial and reporting requirements set by the IRS. This certification ensures financial protections and tax benefits to TotalSource clients that users of non-certified PEOs do not necessarily receive. ADP TotalSource helps ensure your federal employment taxes are paid.

Which platforms does ADP TotalSource integrate with?

TotalSource has pre-built, secure integrations and data connectors with over 300 business software applications and leading payroll, HR and financial systems. ADP can also create a custom API (or integration) if you need data integration with a system we don’t already integrate with.

How easy is it to implement ADP TotalSource?

We make it easy by working with you every step of the way. First, you’ll assign a team member from your end to partner directly with us. We’ll take care of all the heavy lifting, but we want to make sure you’re staying close throughout the process, overseeing setup and system tests. On average, this amounts to a time commitment of about one hour per day for the first few weeks.

From there, you’ll meet your dedicated ADP Human Resources Business Partner, who will take you through the different ways we can help you manage your workforce across benefits, compliance, training, hiring, retention, and more. You'll also learn about the experts and specialists across many disciplines working behind the scenes for you. You can expect to be up and running with TotalSource in a few weeks.

What kind of qualifications or certifications does my HRBP have?

ADP's HRBPs are credentialed HR professionals with extensive experience, plus at least one highly relevant certification in Human Resources management, such as:

  • Professional in Human Resources (PHR)
  • Senior Professional in Human Resources (SPHR)
  • Society for Human Resource Management Certified Professional (SHRM-CP)
  • Society for Human Resource Management Senior Certified Professional (SHRM-SCP)
  • Master of Human Resource Management (MHRM)
  • Certified Human Resource Specialist (CHRS)

How does ADP TotalSource have my back?

We stand by our guidance and, to help protect your bottom line, we provide every ADP TotalSource client with Employment Practices Liability Insurance (EPLI), which provides coverage for covered wrongful employment practices including discrimination, wrongful termination, and harassment. ADP TotalSource clients are not required to carry their own EPLI policy. We've got you covered.