Answers to the Questions HR Managers Ask Most About PEO

Quick look: Curious what actually changes when you partner with a professional employer organization (PEO)? This guide outlines the most common questions we hear HR Managers raise, including who stays in charge, what happens to your benefits, how pricing works, and what leaving looks like if it’s not the right fit.

If you’re a Human Resources (HR) Manager at a small or mid-size business, you probably wear more hats than your job description accounts for. A professional employer organization (PEO) can help take some of that administrative work off your plate.

But bringing another organization into your HR operations is a big decision, and you likely have questions about what it means for your role, your employees, and the way your company operates.

Will you still make the important people decisions? What happens to the benefits you’ve worked hard to build? How much does a PEO cost? And what happens if the relationship isn’t what you expected?

Before you start comparing providers, it’s worth understanding how a PEO partnership works. Here are answers to the questions HR Managers should be asking.

Question: Who’s in charge of our people and HR decisions?

Answer: You are.

The biggest question usually comes first: who will be in charge?

You will be.

When you partner with a PEO, you enter a co-employment relationship. This means that administrative and legal responsibilities are split, not management authority. You continue to decide who to hire, how to pay them, what they work on, how they’re managed, and when to part ways.

What changes is the workload behind the scenes. The PEO takes on agreed-upon functions, like payroll processing and payroll tax filing, benefits administration and carrier relationships, workers’ compensation administration and claims support, and compliance monitoring. It also shares certain employer liabilities according to your service agreement.

Most employees will notice little change. They keep your company name, your culture, their titles, and their managers. The main thing they’ll see is a new set of tools for pay and benefits tasks.

And if you happen to disagree with a PEO’s advice, you make the final call. The PEO will weigh in on discipline, terminations, leave, and wage-and-hour questions. If you choose a different path, they’ll tell you what the risk is, so the decision is an informed one.

You Keep	The PEO Handles
Hiring, termination, and promotion decisions	Payroll processing and payroll tax filing
Job duties, schedules, and performance management	Benefits administration and carrier relationships
Compensation levels and company culture	Workers’ compensation administration and claims support
Handbook content and company policies (with our guidance)	Compliance monitoring and regulatory filings

Question: Will my HR team still be needed?

Answer: Yes, in a different, even deeper capacity.

A PEO doesn’t eliminate the need for an internal HR function. In fact, having an HR team that understands your workforce, leadership, and business goals is an important part of making the partnership successful.

The difference is that your team has another resource to lean on for administrative responsibilities that can consume a significant portion of its time.

For example, by leaning on a PEO to manage payroll corrections, benefits administration, and compliance tracking, your HR team will have more time and energy for strategy, culture, retention, engagement, and manager development.

For an HR Manager who’s already balancing multiple priorities, having an experienced HR partner to consult with can also be valuable when more complicated employee situations arise.

Question: Do I have to change our benefits?

Answer: Not necessarily.

Benefits are often one of the biggest considerations when evaluating a PEO. You’ve likely spent time researching plan, negotiating renewals, and finding a benefits package that works for your employees. The last thing you want is to make a change that leaves them with fewer options.

Before making a decision, ask the PEO to compare your current plans side-by-side with what it can offer. That means mapping deductibles, copays, networks, and contribution strategy to the options available through its carriers. If a particular network or plan matters to your team, ask whether it can be matched.

You’ll also want to review the rest of your benefits package. This includes voluntary coverage such as life, disability insurance, pet, and legal coverage, and your retirement plan. Ask whether your existing 401(k) can remain in place or whether a transition would be necessary.

Some company-specific benefits, such as additional PTO policies or employee stipends, may remain under your company’s administration rather than moving to the PEO.

And since PEOs give small and mid-size employers access to large-group benefits programs, you could unlock even more competitive plans.

Question: How much does a PEO cost?

Answer: Costs are typically broken into these buckets.

PEO pricing can be structured in different ways, so it’s important to understand what you’re paying for before comparing providers. A lower administrative fee doesn’t necessarily mean a lower overall cost if other services or expenses are excluded.

Most PEO proposals include some combination of the following:

Component	What to Expect
Administrative fee	A per-employee-per-month (PEPM) fee
Health and benefits premiums	Medical, dental, vision, and ancillary premiums; rates vary based on plan elections, enrollment, and carrier renewals
Workers’ compensation	Rates based on class codes and claims history; pay-as-you-go available
Payroll taxes (FICA, FUTA, SUTA)	Taxes still apply; rates and filing are handled through the PEO
Optional services	Add-ons such as background checks or time and labor software

Every fee should appear in your proposal and your service agreement. To avoid any hidden charges, consider asking the PEO to put the following in writing:

• Setup or implementation fees
• Minimum monthly fees
• Fees for off-cycle payrolls
• Termination fees
• How renewal rates are set

Question: How much can our company save with a PEO?

Answer: The potential savings depend on your current HR costs and business needs.

Savings, where they exist, usually come from a mix of benefits pricing, workers’ comp rates, time saved on payroll and admin, and reduced compliance risk.

The National Association of Professional Employer Organizations (NAPEO) found that the average PEO client sees a 27% return on investment (ROI) from cost savings alone, though your results will vary based on headcount and industry, along with what you’re paying today. However, this isn’t guaranteed for every company.

Question: Who can my employees and I contact if we need help?

Answer: Every PEO has its own support style.

This is an especially important question for HR Managers. When an employee has a question about their paycheck or benefits, you don’t want to spend your afternoon tracking down an answer. And when you need guidance on a sensitive employee relations issue, you want to know exactly who to call.

Service models vary widely across PEOs. Some rely heavily on ticketing systems and queues, while others assign a dedicated team.

At ExtensisHR, for example, every customer has a dedicated service team led by an Account Manager, who handles the business relationship and any escalations. An HR Business Partner provides guidance on performance management, terminations, employee relations, leaves of absence, and policy questions, while a Payroll Specialist handles payroll processing and corrections.

Employees can contact our Employee Solution Center directly without having to route every question through their internal HR team. Calls are answered in an average of 15 seconds and 90% of cases are resolved the same day.

Question: When is the best time to begin a PEO partnership?

Answer: It depends on your company’s priorities.

Many businesses move at the start of a benefits plan year or at renewal to avoid a mid-year disruption. A mid-year move is still possible, and it’s worth asking about transition support and what the carriers allow. Either way, the goal is to avoid any gap in coverage.

Question: How long does implementation take?

Answer: Exact timing is based on the PEO’s process and your company’s size, structure, and complexity.

Every PEO is different, but at ExtensisHR, implementation typically takes about six weeks. A dedicated Implementation Manager manages your transition from kickoff to your first payroll run, with your Account Manager and HR Business Partner also involved from day one.

Here’s our typical timeline:

• Weeks 1-2: Kickoff and planning
• Weeks 2-3: Tech setup and training
• Weeks 2-5: Benefits and enrollment
• Weeks 3-5: Co-employment go-live
• Weeks 4-6: First payroll and ongoing support

Your internal HR team will play an important role throughout the process, particularly when gathering employee information, reviewing benefits selections, and communicating changes to your workforce.

Question: What if it doesn’t work out?

Answer: Terms vary across PEOs.

Few people sign a contract planning to leave, but it’s important to know how the exit works before you sign.

Each PEO has its own contract terms. At ExtensisHR, clients may terminate their agreement at any time upon at least 90 calendar days prior written notice. The 90 calendar days’ notice requirement shall be increased to 180 calendar days in the event that the number of worksite employees during the most recent payroll period that concluded prior to the date of notice is at least 75.

When evaluating any PEO, ask about initial term length, notice period, early-termination fees, auto-renewal language, and what must be settled upon exit.

A clean exit should be part of the service, with the PEO responsible for a smooth transition until the last day of the agreement. Here’s what that involves at ExtensisHR:

• Payroll and tax: The handoff of payroll and tax filings, plus year-end reporting (W-2s and wage records), is coordinated with your new provider or in-house team.
• Benefits: Timing is planned with you to avoid coverage gaps, including COBRA administration for those who qualify.
• Workers’ comp: You get help securing a standalone policy, plus loss runs so your claims history carries forward.
• Unemployment tax: You transition back to your own state unemployment account and rate, and the team explains what to expect in your state.

Your employee records belong to you, too. Payroll history, benefits enrollment, I-9s, and personnel files are available for download throughout the relationship, so you’ll already know where everything lives.

Question: Who is liable if something goes wrong?

Answer: Liability is shared.

Liability is split under co-employment, and the details depend on your service agreement. Payroll tax and benefits compliance typically fall to the PEO, while day-to-day management actions stay with you. Ask to see the exact contract language.

Question: How do you know a PEO is legitimate and financially sound?

Answer: Look for these key proof points.

There are over 500 PEOs in the U.S. Even if you’ve decided a PEO could work for your business, the sheer number of options means narrowing down who to talk to can feel like another job on your plate.

Here are some things to look for to simplify the search:

• IRS Certified PEO (CPEO) status, signaling the PEO routinely passes strict audits and is certified by the IRS
• Employer Services Assurance Corporation (ESAC) accreditation, demonstrating a PEO consistently complies with state and federal regulations, maintains financial reliability, and adheres to industry best practices
• SOC 1 Type 2 certification, showing a commitment to financial reporting and data security
• Audited financial statements
• References from companies of your size and industry

Additionally, you may also want to learn more about the PEO’s own workplace. If the PEO itself has received company culture awards, that can be a sign that they value and treat their employees well, which may trickle down to the service they provide.

What an HR Manager can expect from a PEO partnership

A PEO should help you keep what makes your company special while freeing up time to grow it. It works alongside you and takes administrative work off your plate, while the decisions that make the business yours stay in your hands. Just as importantly, the right partnership should respect the work you’ve already put into building your company’s HR function. A PEO should complement that expertise and give your team more support where it’s needed.

Asking these questions will help you find out whether a PEO can do all that.