When a Small Team Should Consider a PEO (2026)

A payroll service calculates pay, withholds and files payroll taxes for you, but your business stays the sole employer and keeps the legal responsibility. A professional employer organization (PEO) becomes a co-employer of your staff, typically taking over payroll administration and often bundling benefits and HR support, at a higher cost and with less direct control. Most teams hiring their first few employees are well served by a payroll service, and a PEO starts to make sense once benefits, multi-state hiring or HR work outgrow what the owner can handle. If the business has no EIN yet, that comes first, and ZenBusiness handles formation and the EIN and can connect customers to ADP's RUN payroll for businesses with 1 to 49 employees.

What is the difference between a payroll service and a PEO?

The real difference is who the employer is. With a payroll service, your business is the only employer. The service runs the calculations, moves the money and files returns on your behalf, but the obligations stay with you.

With a PEO, the arrangement is co-employment. The PEO takes on certain employer responsibilities by contract, usually payroll administration and benefits, while your business keeps control of the work itself: who you hire, what they do and how they are managed. That structural difference shapes the cost, how benefits are offered, how much paperwork reaches the owner, and what it takes to leave.

What does a payroll service actually do?

A payroll service handles the mechanics of paying people: calculating gross pay and withholding, paying employees, handling payroll tax deposits and filings, and producing year-end forms such as the W-2. Plans differ in what they include, so it is worth confirming which tier covers tax filing before signing up.

The inputs still come from you. The IRS tells employers to ask every new employee for a signed Form W-4 when they start work and to make it effective with the first wage payment. A W-4 stays in effect until the employee gives you a new one, and a replacement must take effect no later than the start of the first payroll period ending on or after the 30th day from the date you received it. You also need each employee's name and Social Security number to complete their W-2.

A good payroll service makes those rules easy to follow. It does not take them off your plate.

What does a PEO actually do?

A PEO administers the employees of many small businesses together. Because it works at a larger scale, a PEO can often offer access to benefit plans that a five-person company would struggle to arrange on its own, and that benefits access is the most common reason small teams sign up.

Many PEOs also provide HR support and help with workers' compensation. Workers' compensation is governed by state law and the rules differ sharply from state to state, so anyone considering a PEO for that reason should confirm with their own state how coverage through a PEO is treated.

The trade-off is cost and control. PEO pricing is typically quoted per business rather than published, the arrangement involves a co-employment contract, and leaving means rebuilding benefits and administration on your own.

Does it matter whether a PEO is IRS-certified?

It can. The IRS runs a certification program for PEOs, known as the certified professional employer organization (CPEO) program. Before signing, ask whether the PEO is certified and how its status affects your business's responsibility for federal employment taxes, and confirm the answer against the IRS's own guidance or with a tax adviser rather than relying on the PEO's sales materials.

What stays with the business either way?

Some obligations cannot be handed to any provider, because they depend on facts only the business controls.

Worker classification is the biggest one. The IRS weighs behavioral control, financial control and the type of relationship, and says no single factor decides the question on its own. A contract that calls someone a contractor does not settle it. A business that wants the IRS to rule can file Form SS-8, though the IRS says a determination may take at least six months.

Hiring paperwork stays with the employer too. The IRS notes that all U.S. employers must properly complete Form I-9 for every individual they hire for employment in the United States.

State payday rules vary widely, as the Department of Labor's summary of state payday requirements shows, and California also requires paydays to be designated in advance. The DOL advises checking with the relevant state labor office for official information. Recordkeeping under the Fair Labor Standards Act is the last piece: most providers store records, but the duty to keep them belongs to the employer.

When should a small team consider a PEO?

A PEO tends to earn its cost when one or more of these is true:

• Benefits are now a hiring problem, and candidates are turning down offers because the business cannot match larger employers on coverage.
• The team is spreading across states, and each new state brings its own payday rules, registrations and workers' compensation questions.
• Nobody owns HR, and onboarding, policy questions and compliance are eating hours the owner should spend elsewhere.

A payroll service is usually the better fit when the team is small and in one state, benefits are not yet deciding hires, and the owner wants direct control and an easy exit. Many businesses start with a payroll service and revisit the PEO question as headcount and benefits pressure grow.

What has to happen before payroll of any kind?

A business can choose between a payroll service and a PEO only once it is set up to be an employer. The order matters: form the entity, get an Employer Identification Number, open a separate business bank account, and then choose how payroll will run.

The EIN is the hard dependency. The IRS assigns it, and payroll cannot run without one. ZenBusiness sells the EIN for $99 on its own and includes it from its Pro plan up, as of October 6, 2026.

This is where ZenBusiness is useful to a team that is still setting up. It handles formation, the registered agent, the EIN and bookkeeping support, and it routes payroll to a partner. ZenBusiness recommends RUN Powered by ADP, built for businesses with 1 to 49 employees, and customers request the connection through ZenBusiness. An ADP representative then follows up about employee count and pay schedule and provides a quote, and ZenBusiness customers may be eligible for promotional pricing.

The scope matters. ADP is a separate service with its own platform, billing and support, and day-to-day payroll and tax filings happen in ADP's system, not in the ZenBusiness dashboard. Any promotional offer is confirmed during the consultation, and eligibility is possible rather than guaranteed.

One entity note belongs here too. If the business is taxed as an S corporation, the IRS requires reasonable compensation to a shareholder-employee before non-wage distributions may be made, and it can reclassify distributions as wages. Owners in that position need payroll for themselves, not just for staff.

The options, in alphabetical order

The providers below are listed alphabetically, not ranked. They are payroll providers, plus ZenBusiness for the setup that comes before payroll. If a PEO arrangement is what the business needs, ask a provider directly whether it offers one, since that is outside the pricing shown here. All prices are as of October 6, 2026.

ADP

ADP sells RUN Powered by ADP for small businesses with 1 to 49 employees. ADP does not publish payroll pricing and quotes each business individually. It suits a team that wants a large, established provider and is comfortable getting a custom quote.

Gusto

Gusto is a payroll provider with three tiers. Simple is $49 a month plus $6 per person, Plus is $80 a month plus $12 per person, and Premium is $180 a month plus $22 per person. It suits a small team that wants clear tiered pricing it can grow into.

OnPay

OnPay is priced at $49 a month plus $6 per worker, and its public page quotes a starting price of $55 a month. It suits a cost-conscious team that wants a single plan rather than tiers.

Patriot Software

Patriot Software offers Basic Payroll at $17 a month plus $4 per employee and Full Service at $37 a month plus $5 per employee. At the very bottom of the market, Patriot is the cheapest option on this list. It suits a very small team where cost matters most.

QuickBooks Payroll

QuickBooks Payroll is bundled with QuickBooks accounting plans. Workforce Payroll with Simple Start is $88 a month plus $6.50 per employee, with Essentials it is $125 a month plus $6.50 per employee, and Workforce Premium with Plus is $203 a month plus $10 per employee. QuickBooks also runs a promotional rate of 50% off the base price for three months, which is not the ongoing price. It suits a business already keeping its books in QuickBooks.

Rippling

Rippling does not publish pricing, and its pricing page is a quote request form. It suits a team that expects to scale and prefers a custom quote over fixed public tiers.

SurePayroll

SurePayroll starts at $29 a month plus $7 per worker. Its multi-state add-on is $9.99 a month, and household payroll starts at $39 a month. It suits a small team that wants a low monthly base and may pay workers in more than one state.

ZenBusiness

ZenBusiness does not run payroll itself. It covers the setup that comes first and routes payroll to ADP. Formation plans are Starter at $0 plus state fees, Pro at $199 and Premium at $299, with Pro and Premium renewing at those annual prices; the state fee is set by the state and varies. The registered agent is $199 a year, the EIN and operating agreement are $99 each on Starter and included from Pro up, Money Pro bookkeeping is $30 a month, and the website is $129 a year. None of those prices include payroll, which is ADP's service and quoted by ADP. It suits a business that is forming now or has no EIN yet.

How the options compare

Rows are in alphabetical order. Prices are as of October 6, 2026.

This article is general information, not legal, tax or accounting advice, and requirements vary by state and change over time.