Section 125 Cafeteria Plan: The Complete Employer Guide.

A Section 125 plan, also known as a cafeteria plan, is an IRS-authorized employee benefits arrangement that lets employees pay for certain qualified expenses, such as health insurance premiums and dependent care, on a pre-tax basis. By offering the plan, employers reduce payroll-tax liabilities while delivering meaningful tax benefits to their employees.

What is a Section 125 plan?

A Section 125 plan gives employees the opportunity to receive certain employee benefits on a pre-tax basis. By reducing taxable income, employees lower their federal income tax, FICA, and most state and local withholding, and the employer's matching FICA falls in lockstep. The employee version of this story lives in Section 125 for W-2 employees→.

Authorized by the IRS in 1978, the Section 125 plan exists to let employers fund meaningful benefits using money already moving through payroll.

How a Section 125 plan works

The election mechanism works in three steps. First, before the plan year begins, each eligible employee elects an amount from their gross pay to redirect into qualified benefits. Second, each paycheck, payroll subtracts the elected amount from gross wages before calculating federal income tax, Social Security, and Medicare — reducing the taxable wage base for both parties. Third, the employer remits the lower-taxable-wage FICA and delivers a larger net paycheck. The employee never receives the elected amount as cash, which is what makes the pre-tax treatment legally valid under IRC §125.

What deductions and expenses can be written off with a Section 125 plan?

With a Section 125 plan, employees deduct amounts from their gross income to contribute on a pre-tax basis. Employee contributions are not subject to federal income tax, and typically aren't subject to Social Security (FICA) or Medicare taxes either.

In 2026, employees can elect up to $3,400 for a Health Flexible Spending Account (FSA, indexed limit) and up to $5,000 for a Dependent Care Assistance Plan (DCAP). HSA contributions made through §125 follow the separate HSA limits. See the HSA contribution limits 2026 guide→.

Who can sponsor a Section 125 plan?

Any employer paying U.S. income taxes may adopt a §125 plan — sole proprietors, partnerships, C-corporations, S-corporations, tax-exempt nonprofits, and government entities. There is no minimum headcount. Employers with as few as one W-2 employee are eligible. Self-employed individuals who file Schedule C cannot sponsor a §125 plan that covers themselves, though they can sponsor one for their W-2 employees.

Who is not eligible to participate?

The IRS excludes three categories from §125 participation: self-employed individuals (sole proprietors and single-member LLC members filing Schedule C), partners in a partnership, and shareholders who own more than 2% of an S-corporation. These individuals cannot elect pre-tax benefits through a §125 plan even if they sponsor one for their W-2 staff. A shareholder who owns exactly 2% or less in an S-corporation is treated as an employee and may participate. The IRC §1372 attribution rules that determine how to count shares, and the three paths still available to S-corp owners, are covered in the Section 125 for S-corp owners guide→.

What are the different types of Section 125 plans?

A cafeteria plan offers employees a menu of benefits including Premium Only Plans (POPs), FSAs, and DCAPs.

Premium Only Plans (POP)

A Premium Only Plan (POP) lets employees pay health insurance premiums with pre-tax dollars. A POP reduces taxable income and lowers the company's FICA and FUTA exposure. It is the simplest §125 design and the fastest to stand up.

What premiums qualify under a POP?

A POP covers employer-sponsored group insurance premiums: major medical, dental, vision, accidental death and dismemberment, disability (short- and long-term), and group-term life up to $50,000 in face value. Long-term care insurance premiums and individual health insurance purchased outside an employer-sponsored group plan do not qualify for POP treatment.

POP vs. full cafeteria plan

A cafeteria plan is the overarching IRS term. A POP is the most basic version, covering pre-tax premiums only. A full cafeteria plan includes a POP plus FSAs and DCAPs, and may include HSAs through the §125 mechanism for HDHP-enrolled employees.

Flexible Spending Accounts (FSA)

An FSA is a salary-reduction account that reimburses employees for certain qualified benefits such as medical co-pays, routine prescriptions, and dental care. It is subject to an annual maximum and the use-it-or-lose-it rule (with optional grace period or limited carryover).

Health FSA: 2026 limits and eligible expenses

The 2026 Health FSA annual election limit is $3,400 per employee (indexed annually). Eligible expenses include medical copays, prescription drugs, dental and vision care, over-the-counter medications, and amounts applied to deductibles. The Health FSA is subject to the use-it-or-lose-it rule, with two employer-option relief valves: a $660 carryover to the following plan year, or a 2.5-month grace period after year-end.

Dependent Care FSA (DCAP): 2026 limits and rules

The 2026 DCAP annual limit is $5,000 per household ($2,500 for those married filing separately). Eligible expenses must be for the care of a child under age 13 or an adult dependent who lives with the employee. Day care, after-school programs, and elder care facilities qualify. Overnight camps and educational tuition do not. The DCAP limit is separate from the Health FSA limit; an employee may elect the maximum of both.

Dependent Care Assistance Program (DCAP)

Employees who pay for the care of a child under 13 or an adult dependent can contribute pre-tax funds to a DCAP, up to $5,000 of eligible dependent care expenses ($2,500 for those married filing separately).

Health Savings Accounts (HSA) inside §125

HSA contributions routed through a Section 125 cafeteria plan receive a tax advantage that standalone HSA contributions do not: pre-tax payroll contributions through §125 are exempt from federal income tax AND from Social Security and Medicare taxes, eliminating FICA on the HSA contribution as well. The employee must be enrolled in a qualifying High Deductible Health Plan (HDHP) and have no disqualifying secondary coverage. The 2026 HSA contribution limits are $4,400 for self-only coverage and $8,750 for family coverage, with a $1,000 catch-up allowance for account holders aged 55 or older. See the HSA contribution limits 2026 guide→.

IRS-qualified benefits under Section 125

Qualified benefits include health insurance premiums (medical, dental, vision), accident and disability coverage, adoption assistance, dependent care assistance, group-term life insurance, and HSAs. The IRS excludes long-term care, tuition assistance, employee discounts, and gym memberships.

What qualifies for pre-tax treatment

The eligible column above covers the IRS-defined categories of qualified benefits under IRC §125. The broadest category is accident and health coverage, which includes medical, dental, and vision premiums as well as Health FSAs. Adoption assistance, dependent care assistance, group-term life up to the $50,000 face-value threshold, and qualified HSA contributions round out the full menu.

What is excluded from §125

The IRS excludes several common employer expenditures from §125 eligibility. Long-term care insurance premiums cannot be offered through a cafeteria plan. Tuition reimbursement, employee discounts, and on-site gym memberships are governed by separate Code sections (§117, §132, §119) and are not eligible for pre-tax cafeteria plan treatment. Deferred compensation, including 401(k) contributions, is also excluded — §125 covers current-year welfare benefits, not retirement savings.

Tax savings for employers and employees

The Section 125 plan is the only IRS mechanism that simultaneously reduces taxes for both the employer and the employee on the same payroll dollar. The savings flow from a single source: the reduction in taxable wages caused by the pre-tax election.

Employer savings: FICA recapture math

Every dollar an employee elects pre-tax removes that dollar from the employer's FICA base. The employer saves 7.65 cents per dollar (6.2% Social Security + 1.45% Medicare) in matching payroll tax, plus the workers' compensation premium calculated on the lower taxable wage in most policy configurations. On 100 employees averaging $1,200 per month in pre-tax elections, the employer recaptures $91.43 per employee per month — $109,716 per year — returned to the operating account through reduced quarterly 941 deposits.

Employee savings: take-home pay lift

At the $31,200/year reference paycheck — a monthly gross of $2,600 with a $1,200/month §125 election — the employee's verified monthly take-home moves from $2,172.28 to $2,244.24, a lift of $71.96 per month or $863.52 per year. The savings come from lower federal income tax withholding on the reduced Box 1 wage, lower Social Security at 6.2% on the reduced Box 3 wage, lower Medicare at 1.45%, and lower withholding in most conforming states. The full before-and-after paycheck breakdown is in the Section 125 for W-2 employees guide→.

Pros and cons of Section 125 plans

• Employee tax savings. Reduces federal, state, and local withholding.
• Lower taxable income. Reduces W-2 Box 1.
• Reduced employer payroll tax. Lowers FICA and FUTA on every pre-tax dollar.
• Improved benefits perception. Same dollars, larger paycheck, recruiting and retention lift.
• Trade-off: marginally lower Social Security earnings record for high earners near the SS wage cap.
• Trade-off: annual non-discrimination testing is mandatory and audit-tested.

Are there qualifying events for §125 plans?

Employees enrolled in §125 plans generally cannot change benefit elections until the next open enrollment period unless they experience a qualifying event such as marriage, divorce, birth or adoption, involuntary loss of coverage, or a change in employment status.

What counts as a qualifying life event?

The IRS recognizes seven categories that permit a mid-year §125 election change: (1) change in legal marital status — marriage, divorce, legal separation, or annulment; (2) change in number of dependents — birth, adoption, or death; (3) change in employment status for the employee, spouse, or dependent; (4) a dependent satisfies or ceases to satisfy eligibility rules — turning 26 or reaching the DCAP age limit; (5) change in residence affecting coverage; (6) significant cost or coverage change under an employer's plan; and (7) receipt of a Qualified Medical Child Support Order.

How to process a mid-year election change

When a qualifying event occurs, the employee must file the election change request within the timeframe specified in the plan document — typically 30 days from the date of the event. The change takes effect on the date the qualifying event occurred, not the date the paperwork was filed. Retroactive adjustment of prior payrolls is not permitted under §125 rules.

What if no qualifying event occurs?

Outside of qualifying events, §125 elections are irrevocable for the plan year. An employee who wants to increase their FSA election in October — because they have upcoming dental work — cannot do so without a qualifying event. The plan administrator cannot make exceptions without jeopardizing the pre-tax status for all participants. This irrevocability is the legal trade-off that allows the IRS to grant the pre-tax treatment in the first place.

Calculate your §125 savings

The interactive calculator estimates FICA savings and employee tax savings from a §125 election using 2026 limits. Adjust the headcount and average contribution to see the figure for your payroll. Average employer FICA recapture: $91.43 per enrolled employee per month.

The five-step FICA recapture calculation

1. Figure out the employee's total earnings before any deductions.
2. Subtract the elected pre-tax contributions.
3. Withhold federal, state, and local income tax on the lower amount.
4. Calculate FICA and unemployment on the reduced taxable income.
5. Deliver net pay; remit withholdings to insurers and government.

What payroll providers need to configure

The §125 deduction must simultaneously reduce three wage boxes on the W-2: Box 1 (federal taxable wages), Box 3 (Social Security wages), and Box 5 (Medicare wages). Many payroll providers use separate deduction codes for health premiums and FSA elections, and a misconfigured setup may reduce Box 1 correctly while leaving Boxes 3 and 5 unchanged — the most common §125 payroll setup error. The audit test is straightforward: if Box 1 minus the §125 election does not equal Boxes 3 and 5 (before other adjustments), the configuration is wrong.

IRS regulations & nondiscrimination

The plan's rules must be explained in writing. Employers must satisfy the FSA Uniform Coverage Rule and the use-it-or-lose-it rule. The plan must pass three annual non-discrimination tests: Eligibility, Benefits, and Key Employee Concentration. An experienced third-party administrator typically pays for itself many times over by handling testing, audit defense, and document maintenance in one bundle.

The three annual nondiscrimination tests

The IRS requires a §125 plan to pass three separate nondiscrimination tests each plan year. Failure in any test retroactively removes the pre-tax benefit from highly compensated employees or key employees, requiring corrective W-2 amendments.

Eligibility test

The eligibility test verifies that the plan does not favor highly compensated employees (HCEs) in who is permitted to participate. Generally, at least 70% of all non-HCE employees must be eligible, and at least 80% of those eligible must participate — or a separate facts-and-circumstances test must be satisfied.

Contributions and benefits test

The contributions and benefits test verifies that the benefits available to HCEs are not disproportionate relative to non-HCEs. The plan must offer non-HCEs the same menu of benefits it offers HCEs. Optional employer contribution structures — such as flex credits — are tested for disproportionate allocation.

Key employee concentration test

The key employee concentration test limits the share of total pre-tax benefits flowing to key employees — generally officers with compensation over $225,000 (2026 threshold), 1%-or-greater owners, or the top-paid 1%. If key employees receive more than 25% of the aggregate pre-tax benefits, the excess is included in their taxable income.

FSA uniform coverage rule

The FSA Uniform Coverage Rule requires that the full annual Health FSA election be available to a participant on day one of the plan year, regardless of how much has been contributed to date. If an employee elects $2,400 for the year and submits a qualifying claim for $2,400 in January after only one payroll deduction of $200, the plan must reimburse the full $2,400. The employer bears the risk of early-year claim funding; if the employee terminates employment mid-year with a negative FSA balance, the employer generally cannot recoup the overpaid amount.

What happens during a §125 IRS audit?

The auditor asks for the written plan document (signed and dated before the first pre-tax payroll), the adoption agreement, the SPD, election forms, payroll registers, and the three annual non-discrimination test results. With those in order, an audit closes quickly. Without them, the IRS can disallow the pre-tax treatment retroactively.

How do employers start a Section 125 plan?

In most cases a third-party administrator drafts the plan document, manages non-discrimination testing, and owns day-to-day administration. Any employer paying U.S. income taxes is eligible to sponsor a §125 plan. The five operational steps:

Step 1: Adopt a written plan document

A written §125 plan document, adoption agreement, and SPD must be in place and signed before the first pre-tax payroll runs.

Step 2: Open enrollment and elections

Communicate the menu of qualified benefits. Each participating employee completes a written election form covering one plan year.

Step 3: Configure payroll

Set up the §125 deduction codes in the payroll system so elections reduce taxable wages in Boxes 1, 3, and 5 on every paycheck.

Step 4: Run nondiscrimination testing

Run the three annual §125 tests, Eligibility, Benefits, and Key Employee Concentration, and archive the results.

Step 5: Year-end W-2 reconciliation

Reconcile the year-to-date §125 totals to the W-2 export, populate Box 14 with a consistent label, and confirm Boxes 1, 3, and 5 are correctly reduced.

The end-to-end implementation timeline is documented in how it works→. Compliance posture and audit-defense files are summarized at Section 125 compliance requirements→. Brokers placing this with employer clients can review the producer terms in the broker partner program→.

W-2 reporting for Section 125

Employers may report the total value of §125 deductions in Box 14 with a label like S125. The full year-end reconciliation checklist, and the breakdown of how §125 changes Boxes 1, 3, and 5, is in the W-2 Box 14 reporting guide→. The companion employee-facing piece is W-2 Box 14: what Section 125 means on your W-2→.

How §125 reduces W-2 Boxes 1, 3, and 5

The pre-tax §125 election reduces taxable wages across three W-2 boxes simultaneously. Box 1 (federal wages, tips, and other compensation) is reduced by the full annual pre-tax election — this is why a $60,000 salary may show $55,000 in Box 1. Box 3 (Social Security wages) and Box 5 (Medicare wages) are also reduced by the same election, which is where the employer and employee FICA savings originate. Box 16 and Box 18 (state and local wages) are reduced in conforming states; approximately 41 states and D.C. follow the federal definition of wages.

Box 14 — what label to use

Box 14 on the W-2 is the IRS's discretionary reporting field. Employers are not required to report §125 elections in Box 14, but most do to reduce employee payroll questions during filing season. The label should be consistent across the workforce — "Section 125", "S125", or "CAF125" are all acceptable. The amount reported in Box 14 should equal the aggregate annual pre-tax election and reconcile to the wage reduction in Boxes 1, 3, and 5.

Year-end reconciliation checklist

Pull the year-to-date §125 totals from your payroll register and match them line-by-line to the W-2 export. Confirm Boxes 1, 3, and 5 are reduced by the same totals per employee. Apply the correct state-conformity treatment for Boxes 16 and 18. Run all three §125 nondiscrimination tests and archive the results. Store the signed plan document, adoption agreement, and SPD in the audit file before sending W-2s to print.

Simplify §125 plan setup with Benecor Health

Benecor Health makes it easy to implement Section 125 plans that help both you and your employees save on taxes, in all 50 states. Get a custom savings report in 48 hours, or talk to a person at 313-546-1730. Read the operational walkthrough at how it works→, the legal posture at compliance→, and request a custom report→ when you are ready.