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HR Outsourcing

HR outsourcing for small and midsized businesses

Get support for HR, payroll, benefits, talent and compliance with flexible outsourcing solutions built for small and midsized businesses.

Small group of smiling, high-fiving coworkers, depicting the ease of outsourcing Human Resources, payroll, benefits and talent acquisition with providers like ADP

How it works

Understanding HR outsourcing

What is HRO?

Human Resources Outsourcing (HRO) is when a business partners with an outside provider to handle administrative HR work for them — fully or in part. Depending on a business’s needs, that might mean:

  • Offloading routine tasks like payroll processing, benefits administration and employee onboarding
  • Staying ahead of ever-changing HR compliance requirements
  • Tapping into strategic HR expertise you may not have in-house
Woman holding a tablet, learning about the reasons companies may choose Human Resources Outsourcing (HRO), including offloading tasks and compliance needs

What can be outsourced with HRO?

In an HR setup, a wide range of administrative HR tasks and strategic HR services can be outsourced. These are some of the most common outsourcing arrangements:

  • Administrative HR tasks such as payroll, benefits administration, time and attendance tracking, employee safety and wellness, employee handbooks and COBRA administration
  • Strategic HR services such as employee turnover, data analytics and insights, compliance tracking and reporting, and recruiting and staffing
Agent looking out while holding a laptop, depicting the services provided by outsourcing administrative and/or strategic HR tasks and services to providers like ADP

Will HRO work with my existing team?

HR outsourcing is a great option for businesses with or without HR staff.

  • If you have an HR person or department, HR outsourcing is not a replacement, but rather a partnership and an extension of your in-house team
  • If you don't have internal HR, outsourcing serves as your go-to resource for HR, payroll and benefits, working closely with you and your team
Small smiling team interviewing a candidate, depicting the simplicity of using ADP for outsourcing, allowing internal teams to focus on other aspects of HR

When should you consider HR outsourcing?

If you’re having trouble keeping up with HR work, it might mean that you’ve grown beyond the basics. Here are some signs that HR outsourcing might be the right solution for your business.

  • HR admin is eating your time: Managing payroll, benefits, compliance and employee questions is pulling you away from running and growing your business.
  • Compliance requirements are too complex: Employment regulations keep changing, costing you time and worry. 
  • Your business is growing faster than HR can keep up: Your current setup may not be ready for more employees, new states and new requirements.  
  • You want your HR team focused on strategy, not administration: Higher-value strategic priorities are getting pushed aside because your HR team is focused on administrative work.
  • Your benefits program isn't where it could be: You lack the bandwidth to manage a growing benefits program or the buying power to offer competitive plans.

Badge graphic with inset text reading, Over 3.5 million employees rely on ADP's outsourced HR services

ADP's HR outsourcing services now support over 3.5 million employees

Thanks to the tens of thousands of small and midsized businesses who trust ADP to support your HR, payroll, benefits and workplace safety needs.

ADP HRO Solutions

Which ADP HR outsourcing solution is right for you?

ADP offers two HR outsourcing paths for small and midsized businesses. ADP TotalSource® is an all-in-one PEO built on a co-employment relationship and designed for businesses seeking a full-service HR partnership, access to large-group benefits and comprehensive HR support. ADP Comprehensive Services® is a managed services HRO solution for businesses that want to outsource specific HR, payroll, benefits or talent functions without changing their existing employer structure.

Full-service PEO solution

ADP TotalSource is an all-in-one PEO solution that acts as your dedicated HR partner, streamlining payroll, benefits administration and compliance. It combines expert support and advanced technology, so you can stay focused on your business.

  • Dedicated HR Business Partner assigned to your business with HR guidance backed by ADP's EPLI policy
  • Access to competitive benefits with benefits administration handled by ADP
  • Scalable solution built for businesses with 5–1,000+ employees
  • ADP TotalSource is an IRS-certified and ESAC-accredited PEO
Casual business team engaged in discussion, depicting the decision-making process for businesses debating HR outsourcing

Proven experience

Why ADP for HR outsourcing?

When it comes to HR outsourcing, not all providers are created equal. ADP brings unmatched scale, proven expertise and flexible solutions that grow with your business, so you always have the right support at every stage.

  • HR outsourcing services supporting over 3.5 million employees, and trusted by more companies than any other provider in the industry
  • ADP TotalSource is among only 5% of PEOs with both IRS certification and ESAC accreditation
  • Top recognitions in HR outsourcing, as awarded by industry analysts including Everest Group and NelsonHall
  • Fully integrated HCM technology with seamless connections to leading vendors, partners and platforms
  • Unmatched access benchmarking and analytics to help you make better-informed business decisions
  • Flexible solutions and deep industry expertise, built to scale with your business
  • Deep experience in every major industry

Ready to get started?

We can help you determine the level of HR outsourcing that can meet your organization's unique needs.

Who we work with

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

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What clients say about ADP's HR outsourcing

  • Mike Wagner, VP of a professional services firm, finds that managing compliance for employees in different states is much easier and less time-consuming with ADP

    Growing and scaling with ADP TotalSource

    “Tax compliance is very, very difficult. When you have employees in different states than your home state, it makes it exponentially more difficult. It’s nothing short of impossible without the partnership of ADP TotalSource.”

    Read Case Study
    Name
    Mike Wagner
    Title
    Vice President
    Company
    Quality Logo Products
    Industry
    Professional Services
    Employees
    100
  • Kylie Sandberg, Director of Operations, touts ADP's recruitment and talent acquisition services and appreciates hiring more qualified candidates thanks to HRO

    Transforming HR, payroll, benefits and talent management

    “ADP has helped us build job descriptions and train our managers to be more accountable, and that has helped us save significant amounts of direct and indirect employee expenses. Now, we get qualified applicants, and I don’t waste my time anymore.”

    Name
    Kylie Sandberg
    Title
    Director of Operations
    Company
    Genesis Gaming Solutions, Inc.
    Industry
    Professional Services
    Employees
    50–99
  • Cory Christensen, a senior director of HR and professional development, loves that ADP makes it easier to focus on company growth and scalability with outstanding guidance

    Optimizing a strategic approach to HR

    “As we explore growth, we know that whatever happens, we’ll be able to tackle it confidently because we have sound guidance from ADP. The assurance that ADP Comprehensive Services brings to Maverick is worth its weight in gold.”

    Read Case Study
    Name
    Cory Christensen
    Title
    Sr. Director of HR & Professional Development
    Company
    Maverick Solutions
    Industry
    Professional Services
    Employees
    63
  • Dean Friders, Chief Solutions Officer at a healthcare company, appreciates ADP's top-notch customer service and expert support

    Scaling HR and benefits with ADP TotalSource

    “After a sustained run of poor customer service with our prior payroll provider, we made the decision to move to ADP. It was a complex lift under tight deadlines, but it has been executed exceptionally well.”

    Name
    Dean Friders
    Title
    Chief Solutions Officer
    Company
    Work Health Solutions
    Industry
    Healthcare
    Employees
    120
  • Jeffrey Taraboulos, managing partner at a midsize FinServ company, finds the advanced HR technology of ADP frees up significant time that can be spent on clients

    HR technology as a platform for growth

    “The more ADP technology we add, the more time we’re able to spend with our clients. I foresee us working with ADP as we continue growing even more over the next couple of years and in the future.”

    Name
    Jeffrey Taraboulos
    Title
    Managing Partner
    Company
    KSDT & Co., CPA
    Industry
    Financial Services
    Employees
    250+
  • Jessica McCarthy, healthcare company chief of staff, appreciates how easy HRO with ADP has made the day-to-day by taking payroll off her plate

    Trading attrition for retention through pay accuracy

    “Our partnership with ADP has made everybody’s life so much easier — no one talks about payroll anymore, and that tells me everything I need to know.”

    Name
    Jessica McCarthy
    Title
    Chief of Staff
    Company
    GrandCare Health Services
    Industry
    Healthcare
    Employees
    150
  • Thomas Gentile, corporate controller for a large law practice, loves that using HR outsourcing by ADP frees up time allowing for focus on more strategic goals

    More compliance, fewer manual tasks

    “Our team can now focus on more critical areas that can help drive towards [our] larger goals knowing ADP has them covered.”

    Read Case Study
    Name
    Thomas Gentile
    Title
    Worldwide Corporate Controller
    Company
    Fragomen, Del Rey, Bernsen & Loewy, LLP
    Industry
    Immigration Law
    Employees
    6,000

Awards and recognition


  • Multi-Process Human Resources Outsourcing 2025

    12 years

  • NelsonHall NEAT Leader 2026 Benefits Administration

    Leader HR Transformation Services

    2020 - 2023, 2025-2026

  • Gold Stevie Winner for HRO Service Culture for Innovation in Customer Service

    Gold Stevie Winner for HRO Service Culture for Innovation in Customer Service

    2025

Resources and insights

HR outsourcing FAQs

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