The number that gets attention in this conversation is $640 to $1,048 per participating employee per year. That is the payroll tax savings range an employer captures when a preventative healthcare layer is structured correctly under Section 125 of the Internal Revenue Code, with employees enrolled and the contributions properly classified.
Most CFOs hear that number and ask the right follow-up question: where does the money actually come from. The answer is FICA. The employer side of FICA, specifically. And the math is straightforward once you see how the section works.
What Section 125 actually does
Section 125 is the part of the tax code that lets employees pay for qualifying benefits with pre-tax dollars. The most common application is the cafeteria plan, where an employee elects to fund health insurance premiums or an HSA contribution from pre-tax payroll.
When wages get reclassified to pre-tax benefit contributions, two things happen.
The employee's taxable wage base drops, so the employee pays less in federal income tax, Social Security tax, and Medicare tax on the reclassified portion.
The employer's matching FICA obligation drops proportionally. The employer pays 7.65 percent FICA on every dollar of wages. Reclassify $4,000 of wages per year per employee to a Section 125 pre-tax benefit, and the employer's FICA bill on that employee drops by roughly $306.
That second piece is where the employer-side savings come from. It is not a refund or a credit. It is a reduction in the wage base that triggers FICA in the first place.
Where the $640 to $1,048 range comes from
The range reflects two variables: the size of the pre-tax contribution and the employee's wage level.
For employees in the band where most 21-to-100 FTE employers sit, with wages below the Social Security wage base of $176,100 in 2026, the full 7.65 percent FICA applies to every dollar of wages, including the dollars that would have been reclassified. That means the employer saves 7.65 percent on whatever amount gets shifted to pre-tax status.
A preventative healthcare program structured under Section 125 typically shifts $8,000 to $14,000 of annualized wage equivalent per participating employee, depending on the program's design and the employee's actual utilization. Run the math:
$8,000 reclassified at 7.65 percent FICA = $612 saved per employee per year.
$14,000 reclassified at 7.65 percent FICA = $1,071 saved per employee per year.
The published $640 to $1,048 range falls inside that band, which is what you would expect from a well-modeled program rather than a marketing number.
Why this only works for certain workforces
The Section 125 math runs cleanly when three things are true.
The workforce is full-time W2. Section 125 cafeteria plans are an employer-side mechanism. Independent contractors and 1099 workers do not have employer FICA on them in the first place, so there is no FICA to save.
The bulk of the wage distribution sits below the Social Security wage base. For wages above $176,100 in 2026, the Social Security portion of FICA (6.2 percent of the 7.65 percent total) no longer applies. The math still works but the savings per dollar reclassified drops to 1.45 percent for the wages above the cap.
The workforce is stable enough to sustain participation. A 30 percent annual churn rate cuts the realized savings in roughly half, because new employees take time to enroll and short-tenure employees often opt out. Manufacturing, construction, healthcare, automotive, hospitality, home services, education, and consulting workforces tend to fit the profile. Most retail and restaurant workforces do not.
What it is not
Three clarifications before we get to the scaling math.
This is not a deduction. Deductions reduce taxable income. Section 125 reclassifies wages, which is upstream of the tax calculation entirely. The savings show up in payroll tax filings, not in the year-end income tax return.
This is not a tax shelter. The IRS has had Section 125 on the books since 1978 and the qualifying-benefit list is published in plain English in IRS Publication 15-B. Cafeteria plans are not aggressive tax positions. They are part of the standard employer-benefit playbook.
This is not a replacement for the existing health plan. The preventative healthcare program runs as a layer alongside whatever group plan the employer already has. No carrier change. No employee opt-out from current coverage. The Section 125 mechanism applies to the new pre-tax contributions, not to the existing premium structure.
What scaling looks like
The reason this conversation lands with CFOs and Owner-CEOs is that the savings scale linearly with headcount, and the program has no recurring cost to the employer.
100 participating employees at the midpoint of the range = roughly $84,000 in annual payroll tax savings.
500 participating employees = roughly $420,000.
1,000 participating employees = roughly $840,000.
These are not the only savings. Employers in self-funded or level-funded health plans typically see 10 to 20 percent reductions in claims costs over 12 to 36 months as the preventative care layer compounds. That second savings stream is harder to predict in advance because it depends on the actual claims profile of the workforce, but it is real and it stacks on top of the FICA savings rather than substituting for it.
What the implementation actually looks like
The implementation sequence is short.
Step one: a census review against the workforce profile. Number of W2 employees, average wage, expected participation rate, and current plan structure.
Step two: a structure check to confirm the proposed Section 125 plan documents are compliant with both the IRS and the Department of Labor under ERISA where applicable.
Step three: employee communications and enrollment. The participation rate is the variable that moves the realized savings most. A program with 60 percent participation captures roughly 60 percent of the modeled savings.
Step four: payroll integration. The pre-tax deductions need to land in the right boxes on the W-2 and the 941 quarterly payroll filing, or the entire structure is at risk of getting unwound on audit.
This is the part where the wrong vendor causes problems and the right vendor does not.
The honest framing
Stone Path is not the vendor. We facilitate the introduction to vendors that specialize in this implementation. The compensation Stone Path receives flows from the vendor, not the employer. The employer pays nothing to Stone Path and nothing to add the preventative layer to its existing benefits stack.
The math is the math. Section 125 has been in the code for 47 years. The preventative healthcare layer is the modern application that captures the savings the code allows.
If a 21-to-100 FTE employer in manufacturing, construction, healthcare, automotive, hospitality, home services, education, or consulting is paying full FICA on the current wage base and the workforce is reasonably stable, the savings are likely worth scoping.
Run the math on your workforce and we will walk through whether the Section 125 mechanism applies cleanly to your plan structure.