Payroll Integration · Paychex · Last reviewed May 2026

Paychex + Section 125 — Plan Administrator Integration

By David Newman · Referral Partner, Section 125 Savings · San Pedro, CA

Paychex supports Section 125 cafeteria plan deductions across both of its primary employer products: Paychex Flex (for businesses with 20-1,000+ employees) and Paychex SurePayroll (for businesses under 20 employees). The plan administrator coordinates directly with your Paychex representative to set up the Section 125 Preventive Care deduction.

Paychex maintains a dedicated benefits services team that handles Section 125-related questions for their clients. The plan administrator works with that team during the standard 6-8 week implementation.

IRS Section 125 — Federal Law Since 1978
No New Insurance Required
No Changes to Current Benefits
ACA · ERISA · COBRA · HIPAA Compliant
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Setup steps

  1. ACA Solutions plan administrator contacts your Paychex account representative to coordinate the Section 125 deduction setup.
  2. Paychex configures the new pre-tax deduction code on your account. The deduction is automatically classified as pre-tax for federal, FICA, and most state income taxes.
  3. Employee enrollment data flows from the plan administrator's enrollment platform to Paychex via the standard Paychex enrollment file format.
  4. Year-end W-2 reporting is automatic. Paychex handles Box 1, Box 3, Box 5 reductions and Box 14 disclosure.

Deduction code

Configurable in Paychex Flex. Common naming convention: 'Sec 125 Preventive' or 'Cafeteria 125'.

Notes specific to Paychex

  • Paychex Flex's HR services tier includes enrollment-administration tools that integrate with the plan administrator.
  • If you use Paychex's GL integration with QuickBooks or other accounting platforms, the Section 125 deduction maps to the same GL accounts as your existing pre-tax health insurance deduction.
  • Paychex SurePayroll users have a slightly more manual setup but the same end-state — pre-tax deduction with automatic W-2 reporting.

ACA Solutions handles all setup. Your Paychex payroll team only needs to add one pre-tax deduction code on go-live. The plan administrator handles documentation, nondiscrimination testing, and ongoing compliance. Verified compliant by CBIZ Advisors LLC and HitesmanLaw P.A. in 2025.

Run your number

Five quick questions, instant savings estimate. Works the same regardless of your payroll provider — Section 125 math is mechanical at $681.60/W-2 employee/year net of all program fees, plus industry-specific Workers' Comp reduction. Verify on IRS.gov.

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Minimum 10 W-2 employees  ·  $25K+ salary  ·  ACA-compliant health coverage required
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Verified by the Best in the Country

Skepticism is the right response. We don't ask you to take our word for it — we bring institutional proof that convinced CPAs, CFOs, attorneys, and insurance brokers to enroll their own companies.

Darcy L. Hitesman, J.D.

HitesmanLaw P.A. · Minneapolis, MN

35+ years as an Employee Benefits attorney specializing in IRC Section 125, ERISA, HIPAA, and the ACA. Her May 5, 2025 opinion letter concludes: “In this firm's opinion, the Program described satisfies applicable IRS requirements.”

She specifically reviewed the IRS Chief Counsel Advice memoranda on "double-dip" arrangements — the exact schemes the IRS has flagged — and concluded this program is built differently and compliantly.

Named a Super Lawyer every year since 2000. AV-rated (highest possible rating) in Martindale-Hubbell since 1998.
Co-author: ERISA Compliance for Health & Welfare Plans (Thomson Reuters/EBIA) — the national compliance standard manual since 1999.
Member, Technical Advisory Group — Employers Council on Flexible Compensation. She helps set the industry standards for Section 125 plans nationally.

CBIZ Advisors LLC

Top-7 U.S. Accounting Firm · Cleveland, OH · 135,000+ Clients

CBIZ independently reviewed the program against IRC §§ 125, 105, and 106, plus ERISA, ACA, and COBRA requirements. Their August 22, 2025 letter concludes: “If operated per its provisions, the Program appears to satisfy the requirements of ERISA, the ACA, and COBRA as well.”

This review was commissioned by Affinity Hospice's CEO before enrolling his nationwide organization — and the CFO (himself a CPA) shared the letter publicly in his testimonial.

Top-7 U.S. accounting firm. 10,000+ employees across 100+ offices. Serves 135,000+ clients nationally.
Review covers: IRC §125 cafeteria plan, §105/106 wellness benefit rules, ERISA plan asset treatment, ACA integration, and COBRA obligations.
$500,000 legal protection per enrolled employer · $10,000 per employee participant · Insurance-backed.
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Direct From the U.S. Government

Section 125 has been in the Internal Revenue Code since 1978. Congress wrote it there specifically to encourage employers to fund preventive healthcare for American workers. This is not a loophole — it is the precise, intended use of a 47-year-old federal law, grounded in IRS Revenue Ruling 69-154, the specific published ruling supporting the benefit payment structure.

→ Verify on IRS.gov — Section 125 Cafeteria Plans ↗
Paychex Section 125 FAQ

Common Paychex-specific questions

Not typically for Paychex Flex (Section 125 deductions are part of standard payroll setup). SurePayroll users may incur a small one-time setup fee. The Preventive Care program's $35/employee/month admin fee is separate and goes to the plan administrator, not Paychex.
They handle the Paychex-side configuration. The plan administrator (separately) handles the formal Section 125 plan document, nondiscrimination testing, employee enrollment, and ongoing compliance — work that's outside the Paychex scope.
Yes — both flow through the cafeteria plan structure. Configure both as pre-tax deductions and Paychex handles the tax treatment correctly.
Paychex offers benefits administration as a separate service tier. The Section 125 Preventive Care plan administrator is a distinct entity from Paychex Benefits — the two coordinate during implementation but the program operates independently.
Yes — Paychex automatically reduces Box 1, Box 3, and Box 5 wages by the Section 125 deduction amount. The annual deduction total is disclosed in Box 14.

Content reviewed by Virginia Fish, CPA — tax and employer benefits specialist with 10+ years in financial reporting and payroll tax strategy.

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Verified: CBIZ Advisors LLC (Aug 2025) · HitesmanLaw P.A. (May 2025)
$500K legal protection per enrolled employer · IRS Section 125 · Federal law since 1978