Title 26 › Subtitle Subtitle C— Employment Taxes › Chapter 25— GENERAL PROVISIONS RELATING TO EMPLOYMENT TAXES › § 3511
When a business hires a certified professional employer organization (CPEO) to run its payroll, the CPEO — not the business — is treated as the employer for federal employment taxes on the wages the CPEO pays to worksite employees. Tax credits tied to those wages, such as the work opportunity credit, the research credit, and the small employer health insurance credit, still belong to the customer business, and the CPEO must give the customer and the IRS the information needed to claim them. The arrangement does not work if the business and the CPEO are related — ownership ties of 10 percent or more disqualify it. Self-employed people, including partners in a customer partnership, do not count as worksite employees for pay a CPEO sends them. CPEOs must follow IRS reporting and recordkeeping rules, including notifying the IRS when a service contract starts or ends.
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Internal Revenue Code — Source: USLM XML via OLRC
Legislative History
Reference
Citation
26 U.S.C. § 3511
Title 26 — Internal Revenue Code
Last Updated
Apr 6, 2026
Release point: 119-73