PEO vs Payroll Service: Services, Responsibilities, and Cost

If you’re comparing a PEO vs payroll service, the real question is whether you need help paying people or help running the employment side of your business.

Here’s how the two models differ, what you’ll still own, and how to compare the full costs of each.

PEO vs Payroll Service: the Short Answer

A payroll service runs pay and may handle tax filings and employee pay records. A professional employer organization (PEO) usually bundles payroll with HR, benefits, and workers’ compensation services through co-employment.

Exact services vary, so you need to compare the actual contract, not just the label. For more details, see the IRS arrangement chart and PEO association FAQ.

Decision point	Payroll service	PEO
Relationship	Vendor or payroll-agent agreement; no PEO co-employment by default	Client service agreement that allocates tasks in a co-employment model
Employer status	Your business remains the employer of its workforce	Your business still runs the worksite; the PEO shares specified employment functions. “Co-employer” isn’t itself a federal tax classification.
Payroll	Calculates and delivers pay from the data you supply or approve	Processes pay as part of a wider service package
Tax filing	May prepare, file, and deposit taxes; the exact authority and liability depend on the IRS arrangement	May file under its own EIN; federal tax liability depends on whether it’s a CPEO or has another applicable legal role, not just on the PEO name
Benefits	Some plans offer deductions, benefits tools, or optional administration	Often administers access to benefits or a PEO-sponsored plan, depending on the package and eligibility
Workers’ compensation	You generally arrange coverage; some payroll providers offer policy or admin add-ons	May arrange coverage, administer claims, or offer risk support; check whose policy applies
HR support	Software, documents, and support vary by plan	Usually includes broader HR guidance or administration
Compliance support	Payroll calculations and filing tools; other help varies	HR and employment guidance may be included, but it doesn’t remove all client duties
Technology	Payroll portal, employee self-service, and possible integrations	Payroll and HR platform, often with benefits and employee records; integrations still matter
Typical pricing basis	Base subscription and/or per-employee charge; add-ons can cost extra	Per-employee administrative charge or a percentage of payroll; insurance and benefits costs may be separate
Implementation	Move payroll history, tax data, deductions, and employee records	Move those items plus any benefits, workers’ comp, and co-employment paperwork
Exit complexity	Switch pay runs and reconcile tax and year-end records	Also plan for benefits, insurance, employee communications, and the end of the service agreement

These service and pricing examples come from published plan details and a PEO pricing breakdown. Just know that they aren’t universal.

How a Payroll Service Works

With a payroll service, you provide employee hours, pay rates, deductions, and the pay schedule. The provider calculates wages and withholdings and usually handles direct deposit. Depending on the plan, it may deposit taxes, file returns, prepare W-2s, and offer online pay stubs. These features appear in published payroll plans, but no provider includes everything by default.

Payroll plans may also offer time tracking, benefits, workers’ comp administration, or HR tools. Ask what’s included, what’s extra, and who corrects a filing or pay run. For the basics, see our payroll service guide.

The important difference is legal, not technical. According to the IRS, a standard payroll provider or reporting agent doesn’t automatically take on your federal employment-tax liability just because it files returns or makes deposits for you.

A Section 3504 agent is different because it can share certain tax liabilities with the employer. Check which arrangement your provider actually uses before you sign.

How a PEO Works

A PEO signs a client service agreement with your business. In the common co-employment model, it takes on agreed administrative tasks, such as payroll, benefits administration, workers’ compensation services, HR support, and payroll-tax work.

You still make the day-to-day decisions, including what your team does, who supervises them, and what you pay them. The exact split sits in the contract, as the industry association explains.

Don’t mistake co-employment for a blanket transfer of legal duties. The IRS PEO guidance says the term “co-employer” isn’t a federal tax-law status, and a noncertified PEO’s tax role depends on the facts and legal arrangement.

A certified PEO (CPEO) works differently. For qualifying worksite employees covered by a CPEO contract, the CPEO is generally solely responsible for the federal employment taxes on wages it pays. Different rules can apply to non-worksite employees and to state tax obligations.

The IRS explains these limits in more detail. For a broader look at small-business HR options, see Connecteam’s HR guide.

PEO vs Payroll Service Responsibilities: Who Handles What

Use this as a practical guide, not a ruling on what your contract requires. For each task, document who owns it, who checks it, and what happens when something goes wrong.

The IRS payroll guidance, NAPEO’s PEO overview, and DOL recordkeeping guidance can help you separate outsourced admin work from responsibilities that still sit with the employer.

Task	With a payroll service	With a PEO	What your business still needs to do
Payroll data	Calculates pay from approved data	Processes pay under the agreement	Check deductions, corrections, and final pay
Time data	Accepts hours, if supported	Accepts hours for pay runs	Capture actual hours and approve time
Pay rates	Stores and applies rates you provide	Stores and applies rates under the agreement	Decide rates and promptly report raises or changes
Tax filing	May prepare, sign, file, or deposit under the agreed authority	May file under its own EIN or another arrangement	Confirm the filing party, EIN, coverage, and your remaining liability
Benefits administration	May calculate deductions or offer optional tools	Often manages enrollment and covered plan administration	Decide what to offer, check plan terms and employee communications
Workers’ compensation	Usually outside core payroll, but add-ons exist	May provide coverage or administer claims and risk processes	Check the policy, classifications, reporting duties, and worksite practices
HR policies	May supply templates or optional advice	Often offers guidance and documentation support	Set workplace rules and review them for your operations
Hiring decisions	May set up new hires in payroll	May assist with onboarding and employment paperwork	Choose whom to hire and confirm contract-specific steps
Termination decisions	Processes final pay information you provide	May advise on paperwork and coordinate agreed steps	Make the decision; coordinate timing and applicable final-pay rules
Scheduling	May offer a separate scheduling feature	May offer a separate scheduling feature	Build and approve shifts; a payroll relationship doesn’t staff the worksite
Daily supervision	Doesn’t direct the work	Doesn’t normally direct the client’s daily work	Manage performance, assignments, and worksite operations
Recordkeeping	May store payroll and tax records	May store payroll, HR, and benefits records	Ensure required records are accurate, accessible, and retained

The DOL requires accurate records of hours and wages for covered nonexempt workers. Provider storage helps, but you still need to check the input.

Cost Comparison

Don’t compare a payroll subscription with an entire PEO invoice. Compare the same bundle of work. Published payroll and PEO tiers show base-plus-per-employee and per-employee pricing.

Some PEOs charge a share of payroll. A PEO pricing example separates admin fees, premiums, and taxes. Pricing varies.

For each quote, calculate the annual total across the same headcount and services. Use our calculator below:

Payroll-only service has a narrower focus, but add-ons raise its cost. A PEO may replace other vendors or internal tasks, yet premiums, underwriting, minimum headcount, renewals, and add-ons can change the total.

Ask for each cost to be listed separately. Pricing can vary based on factors like your industry, location, headcount, and the services you need.

If managers correct hours every pay period, switching processors won’t fix the source. If HR capacity is the gap, a low payroll fee won’t cover work you still do yourself. Price the problem you need solved.

When a Payroll Service May Be Enough

Start with payroll service if your main pain is running accurate pay and tax filings and you already have someone to own the rest. It can make sense when:

• You have a trusted HR adviser or internal HR staff and don’t want a bundled HR relationship.
• Your benefits and workers’ compensation policies work for the team, and you want to keep them.
• You want to choose separate vendors for scheduling, time tracking, benefits, and HR help.
• You don’t want a co-employment agreement and can oversee the payroll provider’s work.

Here’s an example:

A 15-person field-service business already has an insurance broker and HR adviser. Its biggest headache is getting approved hours into payroll by Friday. In that case, a payroll service paired with a reliable time-approval process may solve the problem without moving benefits and HR into a PEO. The IRS guidance also makes it clear that employers still need to understand and check their tax arrangements.

When You Should Consider a PEO

A PEO is worth a closer look if payroll is only one of several jobs you need help with. You may want benefits administration, a workers’ compensation process, HR guidance, and payroll under one service agreement.

This can be useful when you have limited in-house HR capacity or you’re spending too much management time coordinating vendors.

Consider this example:

A growing multi-location team is hiring, enrolling employees in benefits, handling claims, and answering policy questions without a dedicated HR person. A PEO may reduce the number of separate handoffs. But check whether it serves your industry and states, what its insurance underwriting requires, which benefit plans workers can join, and how its HR team will support your managers. A PEO isn’t automatically the better upgrade from payroll software.

Your situation	Model to investigate first	Why
Pay runs and tax filings are the main gap; HR and insurance are covered	Payroll service	Pays for the narrower task you need
Payroll, benefits administration, HR advice, and workers’ comp are all gaps	PEO	Tests a broader contracted bundle
You want more HR administration but not co-employment	ASO or HRO	Adds selected support under a vendor agreement
You want to keep existing benefit plans and broker relationships	Payroll service or ASO	Keeps more of your current arrangements in place
You’re hiring in a country where you lack a local employing entity	EOR	Investigates a different legal-employer model, subject to local advice

This is a shortlist, not a verdict. A PEO quote may not suit a particular risk profile or budget, and a payroll plan may already have the add-ons you need. Validate each row against the actual service agreement, supported locations, and insurance terms.

Other Models Worth Comparing

If payroll alone feels too narrow but co-employment feels like too much, look at an administrative services organization (ASO) or a human resources outsourcing (HRO) provider.

These can handle selected HR and benefits-administration tasks under a vendor contract without the same PEO co-employment arrangement. The ASO comparison and HRO comparison explain the distinction, but what’s included depends on the provider.

If your real issue is hiring where you lack the required employing entity or setup, ask about an employer of record (EOR) instead. An EOR may be the legal employer in that location. A U.S. PEO’s co-employment model isn’t a universal replacement for local employment setup. Start with this PEO vs EOR guide and get location-specific advice before signing.

Questions to Ask Before Choosing

Get these answers in each proposal or agreement.

1. Scope: Which payroll, HR, benefits, workers’ comp, and compliance tasks are included? Which are optional or excluded?
2. Tax arrangement: Will you act as a payroll service provider, reporting agent, Section 3504 agent, CPEO, or another kind of payer? Whose EIN appears on which returns, and which IRS authorizations apply?
3. Benefits: Who sponsors each plan, who owns the policy or contract, and what happens to coverage and deductions if we leave?
4. Workers’ compensation: Whose policy covers the team, who reports injuries and handles claims, and what classifications or exclusions apply?
5. Decisions and records: Who approves hours, rates, hires, terminations, filings, and corrections? Who can export complete wage and time records? The DOL record rules are a useful check.
6. Technology: Can our scheduling, PTO, and time systems pass approved data through a verified integration or supported export? If something breaks, who catches and fixes it?
7. Support: Who answers an employee’s pay question or a manager’s urgent HR question, and what response times are in the contract?
8. Total cost: What are service fees, premiums, taxes, add-ons, setup charges, minimums, renewals, and price-change rules?
9. Implementation and exit: Who moves wage history and benefits data, handles in-flight claims and tax returns, tells employees what changes, and sets the final cutover date?

The information going into the system still matters. Connecteam’s employee scheduling, time clock, and timesheets for payroll can help you collect and organize time and PTO data before payroll. Supported exports and integrations can then pass that data to your payroll provider.

Verify the handoff with your chosen provider. Connecteam doesn’t process payroll or take over your legal responsibilities.

The Bottom Line on PEO vs Payroll Service

Choose a payroll service when your main problem is getting employees paid correctly, filing payroll taxes, and keeping payroll admin under control. Look at a PEO when you want broader support that may also cover benefits administration, HR services, workers’ compensation, and other employer functions.

Don’t compare the monthly fee alone. Spell out what each provider will handle, what stays with your team, and who is responsible when something goes wrong. Compare the full annual cost, including add-ons and services you would still need to buy separately.

Before switching, get those responsibilities in writing and test how employee data will move from scheduling and time tracking through payroll, benefits, and reporting. The better fit is the model that solves the work you actually need help with without adding services, cost, or complexity you don’t need.